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src/share/vm/runtime/globals.hpp@54a56bbaf95b (annotated)

src/share/vm/runtime/globals.hpp

Fri, 06 May 2011 09:45:18 +0200

author

brutisso

date

Fri, 06 May 2011 09:45:18 +0200

changeset 2857

54a56bbaf95b

parent 2816

286c498ae0d4

parent 2853

a1d5f532838d

child 2864

f4063a3503fc

child 2889

fc2b798ab316

permissions

-rw-r--r--

Merge

duke@435	1	/*
ctornqvi@2520	2	* Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
stefank@2314	25	#ifndef SHARE_VM_RUNTIME_GLOBALS_HPP
stefank@2314	26	#define SHARE_VM_RUNTIME_GLOBALS_HPP
stefank@2314	27
stefank@2314	28	#include "utilities/debug.hpp"
stefank@2314	29	#ifdef TARGET_ARCH_x86
stefank@2314	30	# include "globals_x86.hpp"
stefank@2314	31	#endif
stefank@2314	32	#ifdef TARGET_ARCH_sparc
stefank@2314	33	# include "globals_sparc.hpp"
stefank@2314	34	#endif
stefank@2314	35	#ifdef TARGET_ARCH_zero
stefank@2314	36	# include "globals_zero.hpp"
stefank@2314	37	#endif
bobv@2508	38	#ifdef TARGET_ARCH_arm
bobv@2508	39	# include "globals_arm.hpp"
bobv@2508	40	#endif
bobv@2508	41	#ifdef TARGET_ARCH_ppc
bobv@2508	42	# include "globals_ppc.hpp"
bobv@2508	43	#endif
stefank@2314	44	#ifdef TARGET_OS_FAMILY_linux
stefank@2314	45	# include "globals_linux.hpp"
stefank@2314	46	#endif
stefank@2314	47	#ifdef TARGET_OS_FAMILY_solaris
stefank@2314	48	# include "globals_solaris.hpp"
stefank@2314	49	#endif
stefank@2314	50	#ifdef TARGET_OS_FAMILY_windows
stefank@2314	51	# include "globals_windows.hpp"
stefank@2314	52	#endif
stefank@2314	53	#ifdef TARGET_OS_ARCH_linux_x86
stefank@2314	54	# include "globals_linux_x86.hpp"
stefank@2314	55	#endif
stefank@2314	56	#ifdef TARGET_OS_ARCH_linux_sparc
stefank@2314	57	# include "globals_linux_sparc.hpp"
stefank@2314	58	#endif
stefank@2314	59	#ifdef TARGET_OS_ARCH_linux_zero
stefank@2314	60	# include "globals_linux_zero.hpp"
stefank@2314	61	#endif
stefank@2314	62	#ifdef TARGET_OS_ARCH_solaris_x86
stefank@2314	63	# include "globals_solaris_x86.hpp"
stefank@2314	64	#endif
stefank@2314	65	#ifdef TARGET_OS_ARCH_solaris_sparc
stefank@2314	66	# include "globals_solaris_sparc.hpp"
stefank@2314	67	#endif
stefank@2314	68	#ifdef TARGET_OS_ARCH_windows_x86
stefank@2314	69	# include "globals_windows_x86.hpp"
stefank@2314	70	#endif
bobv@2508	71	#ifdef TARGET_OS_ARCH_linux_arm
bobv@2508	72	# include "globals_linux_arm.hpp"
bobv@2508	73	#endif
bobv@2508	74	#ifdef TARGET_OS_ARCH_linux_ppc
bobv@2508	75	# include "globals_linux_ppc.hpp"
bobv@2508	76	#endif
stefank@2314	77	#ifdef COMPILER1
stefank@2314	78	#ifdef TARGET_ARCH_x86
stefank@2314	79	# include "c1_globals_x86.hpp"
stefank@2314	80	#endif
stefank@2314	81	#ifdef TARGET_ARCH_sparc
stefank@2314	82	# include "c1_globals_sparc.hpp"
stefank@2314	83	#endif
bobv@2508	84	#ifdef TARGET_ARCH_arm
bobv@2508	85	# include "c1_globals_arm.hpp"
bobv@2508	86	#endif
bobv@2508	87	#ifdef TARGET_ARCH_ppc
bobv@2508	88	# include "c1_globals_ppc.hpp"
bobv@2508	89	#endif
stefank@2314	90	#ifdef TARGET_OS_FAMILY_linux
stefank@2314	91	# include "c1_globals_linux.hpp"
stefank@2314	92	#endif
stefank@2314	93	#ifdef TARGET_OS_FAMILY_solaris
stefank@2314	94	# include "c1_globals_solaris.hpp"
stefank@2314	95	#endif
stefank@2314	96	#ifdef TARGET_OS_FAMILY_windows
stefank@2314	97	# include "c1_globals_windows.hpp"
stefank@2314	98	#endif
stefank@2314	99	#endif
stefank@2314	100	#ifdef COMPILER2
stefank@2314	101	#ifdef TARGET_ARCH_x86
stefank@2314	102	# include "c2_globals_x86.hpp"
stefank@2314	103	#endif
stefank@2314	104	#ifdef TARGET_ARCH_sparc
stefank@2314	105	# include "c2_globals_sparc.hpp"
stefank@2314	106	#endif
bobv@2508	107	#ifdef TARGET_ARCH_arm
bobv@2508	108	# include "c2_globals_arm.hpp"
bobv@2508	109	#endif
stefank@2314	110	#ifdef TARGET_OS_FAMILY_linux
stefank@2314	111	# include "c2_globals_linux.hpp"
stefank@2314	112	#endif
stefank@2314	113	#ifdef TARGET_OS_FAMILY_solaris
stefank@2314	114	# include "c2_globals_solaris.hpp"
stefank@2314	115	#endif
stefank@2314	116	#ifdef TARGET_OS_FAMILY_windows
stefank@2314	117	# include "c2_globals_windows.hpp"
stefank@2314	118	#endif
stefank@2314	119	#endif
stefank@2314	120	#ifdef SHARK
stefank@2314	121	#ifdef TARGET_ARCH_zero
stefank@2314	122	# include "shark_globals_zero.hpp"
stefank@2314	123	#endif
stefank@2314	124	#endif
stefank@2314	125
twisti@2047	126	#if !defined(COMPILER1) && !defined(COMPILER2) && !defined(SHARK)
duke@435	127	define_pd_global(bool, BackgroundCompilation, false);
duke@435	128	define_pd_global(bool, UseTLAB, false);
duke@435	129	define_pd_global(bool, CICompileOSR, false);
duke@435	130	define_pd_global(bool, UseTypeProfile, false);
duke@435	131	define_pd_global(bool, UseOnStackReplacement, false);
duke@435	132	define_pd_global(bool, InlineIntrinsics, false);
duke@435	133	define_pd_global(bool, PreferInterpreterNativeStubs, true);
duke@435	134	define_pd_global(bool, ProfileInterpreter, false);
duke@435	135	define_pd_global(bool, ProfileTraps, false);
duke@435	136	define_pd_global(bool, TieredCompilation, false);
duke@435	137
duke@435	138	define_pd_global(intx, CompileThreshold, 0);
duke@435	139	define_pd_global(intx, BackEdgeThreshold, 0);
duke@435	140
duke@435	141	define_pd_global(intx, OnStackReplacePercentage, 0);
duke@435	142	define_pd_global(bool, ResizeTLAB, false);
duke@435	143	define_pd_global(intx, FreqInlineSize, 0);
phh@1499	144	define_pd_global(intx, InlineSmallCode, 0);
duke@435	145	define_pd_global(intx, NewSizeThreadIncrease, 4*K);
duke@435	146	define_pd_global(intx, InlineClassNatives, true);
duke@435	147	define_pd_global(intx, InlineUnsafeOps, true);
duke@435	148	define_pd_global(intx, InitialCodeCacheSize, 160*K);
duke@435	149	define_pd_global(intx, ReservedCodeCacheSize, 32*M);
duke@435	150	define_pd_global(intx, CodeCacheExpansionSize, 32*K);
duke@435	151	define_pd_global(intx, CodeCacheMinBlockLength, 1);
duke@435	152	define_pd_global(uintx,PermSize, ScaleForWordSize(4*M));
duke@435	153	define_pd_global(uintx,MaxPermSize, ScaleForWordSize(64*M));
duke@435	154	define_pd_global(bool, NeverActAsServerClassMachine, true);
phh@1499	155	define_pd_global(uint64_t,MaxRAM, 1ULL*G);
duke@435	156	#define CI_COMPILER_COUNT 0
duke@435	157	#else
duke@435	158
duke@435	159	#ifdef COMPILER2
duke@435	160	#define CI_COMPILER_COUNT 2
duke@435	161	#else
duke@435	162	#define CI_COMPILER_COUNT 1
duke@435	163	#endif // COMPILER2
duke@435	164
duke@435	165	#endif // no compilers
duke@435	166
duke@435	167
duke@435	168	// string type aliases used only in this file
duke@435	169	typedef const char* ccstr;
duke@435	170	typedef const char* ccstrlist; // represents string arguments which accumulate
duke@435	171
duke@435	172	enum FlagValueOrigin {
duke@435	173	DEFAULT = 0,
duke@435	174	COMMAND_LINE = 1,
duke@435	175	ENVIRON_VAR = 2,
duke@435	176	CONFIG_FILE = 3,
duke@435	177	MANAGEMENT = 4,
duke@435	178	ERGONOMIC = 5,
duke@435	179	ATTACH_ON_DEMAND = 6,
duke@435	180	INTERNAL = 99
duke@435	181	};
duke@435	182
duke@435	183	struct Flag {
duke@435	184	const char *type;
duke@435	185	const char *name;
duke@435	186	void* addr;
ikrylov@2123	187
ikrylov@2123	188	NOT_PRODUCT(const char *doc;)
ikrylov@2123	189
duke@435	190	const char *kind;
duke@435	191	FlagValueOrigin origin;
duke@435	192
duke@435	193	// points to all Flags static array
duke@435	194	static Flag *flags;
duke@435	195
duke@435	196	// number of flags
duke@435	197	static size_t numFlags;
duke@435	198
duke@435	199	static Flag* find_flag(char* name, size_t length);
duke@435	200
duke@435	201	bool is_bool() const { return strcmp(type, "bool") == 0; }
duke@435	202	bool get_bool() const { return *((bool*) addr); }
duke@435	203	void set_bool(bool value) { *((bool*) addr) = value; }
duke@435	204
duke@435	205	bool is_intx() const { return strcmp(type, "intx") == 0; }
duke@435	206	intx get_intx() const { return *((intx*) addr); }
duke@435	207	void set_intx(intx value) { *((intx*) addr) = value; }
duke@435	208
duke@435	209	bool is_uintx() const { return strcmp(type, "uintx") == 0; }
duke@435	210	uintx get_uintx() const { return *((uintx*) addr); }
duke@435	211	void set_uintx(uintx value) { *((uintx*) addr) = value; }
duke@435	212
phh@1499	213	bool is_uint64_t() const { return strcmp(type, "uint64_t") == 0; }
phh@1499	214	uint64_t get_uint64_t() const { return *((uint64_t*) addr); }
phh@1499	215	void set_uint64_t(uint64_t value) { *((uint64_t*) addr) = value; }
phh@1499	216
duke@435	217	bool is_double() const { return strcmp(type, "double") == 0; }
duke@435	218	double get_double() const { return *((double*) addr); }
duke@435	219	void set_double(double value) { *((double*) addr) = value; }
duke@435	220
duke@435	221	bool is_ccstr() const { return strcmp(type, "ccstr") == 0 || strcmp(type, "ccstrlist") == 0; }
duke@435	222	bool ccstr_accumulates() const { return strcmp(type, "ccstrlist") == 0; }
duke@435	223	ccstr get_ccstr() const { return *((ccstr*) addr); }
duke@435	224	void set_ccstr(ccstr value) { *((ccstr*) addr) = value; }
duke@435	225
duke@435	226	bool is_unlocker() const;
duke@435	227	bool is_unlocked() const;
duke@435	228	bool is_writeable() const;
duke@435	229	bool is_external() const;
duke@435	230
ikrylov@2123	231	void print_on(outputStream* st, bool withComments = false );
duke@435	232	void print_as_flag(outputStream* st);
duke@435	233	};
duke@435	234
duke@435	235	// debug flags control various aspects of the VM and are global accessible
duke@435	236
duke@435	237	// use FlagSetting to temporarily change some debug flag
duke@435	238	// e.g. FlagSetting fs(DebugThisAndThat, true);
duke@435	239	// restored to previous value upon leaving scope
duke@435	240	class FlagSetting {
duke@435	241	bool val;
duke@435	242	bool* flag;
duke@435	243	public:
duke@435	244	FlagSetting(bool& fl, bool newValue) { flag = &fl; val = fl; fl = newValue; }
duke@435	245	~FlagSetting() { *flag = val; }
duke@435	246	};
duke@435	247
duke@435	248
duke@435	249	class CounterSetting {
duke@435	250	intx* counter;
duke@435	251	public:
duke@435	252	CounterSetting(intx* cnt) { counter = cnt; (*counter)++; }
duke@435	253	~CounterSetting() { (*counter)--; }
duke@435	254	};
duke@435	255
duke@435	256
duke@435	257	class IntFlagSetting {
duke@435	258	intx val;
duke@435	259	intx* flag;
duke@435	260	public:
duke@435	261	IntFlagSetting(intx& fl, intx newValue) { flag = &fl; val = fl; fl = newValue; }
duke@435	262	~IntFlagSetting() { *flag = val; }
duke@435	263	};
duke@435	264
duke@435	265
duke@435	266	class DoubleFlagSetting {
duke@435	267	double val;
duke@435	268	double* flag;
duke@435	269	public:
duke@435	270	DoubleFlagSetting(double& fl, double newValue) { flag = &fl; val = fl; fl = newValue; }
duke@435	271	~DoubleFlagSetting() { *flag = val; }
duke@435	272	};
duke@435	273
duke@435	274
duke@435	275	class CommandLineFlags {
duke@435	276	public:
duke@435	277	static bool boolAt(char* name, size_t len, bool* value);
duke@435	278	static bool boolAt(char* name, bool* value) { return boolAt(name, strlen(name), value); }
duke@435	279	static bool boolAtPut(char* name, size_t len, bool* value, FlagValueOrigin origin);
duke@435	280	static bool boolAtPut(char* name, bool* value, FlagValueOrigin origin) { return boolAtPut(name, strlen(name), value, origin); }
duke@435	281
duke@435	282	static bool intxAt(char* name, size_t len, intx* value);
duke@435	283	static bool intxAt(char* name, intx* value) { return intxAt(name, strlen(name), value); }
duke@435	284	static bool intxAtPut(char* name, size_t len, intx* value, FlagValueOrigin origin);
duke@435	285	static bool intxAtPut(char* name, intx* value, FlagValueOrigin origin) { return intxAtPut(name, strlen(name), value, origin); }
duke@435	286
duke@435	287	static bool uintxAt(char* name, size_t len, uintx* value);
duke@435	288	static bool uintxAt(char* name, uintx* value) { return uintxAt(name, strlen(name), value); }
duke@435	289	static bool uintxAtPut(char* name, size_t len, uintx* value, FlagValueOrigin origin);
duke@435	290	static bool uintxAtPut(char* name, uintx* value, FlagValueOrigin origin) { return uintxAtPut(name, strlen(name), value, origin); }
duke@435	291
phh@1499	292	static bool uint64_tAt(char* name, size_t len, uint64_t* value);
phh@1499	293	static bool uint64_tAt(char* name, uint64_t* value) { return uint64_tAt(name, strlen(name), value); }
phh@1499	294	static bool uint64_tAtPut(char* name, size_t len, uint64_t* value, FlagValueOrigin origin);
phh@1499	295	static bool uint64_tAtPut(char* name, uint64_t* value, FlagValueOrigin origin) { return uint64_tAtPut(name, strlen(name), value, origin); }
phh@1499	296
duke@435	297	static bool doubleAt(char* name, size_t len, double* value);
duke@435	298	static bool doubleAt(char* name, double* value) { return doubleAt(name, strlen(name), value); }
duke@435	299	static bool doubleAtPut(char* name, size_t len, double* value, FlagValueOrigin origin);
duke@435	300	static bool doubleAtPut(char* name, double* value, FlagValueOrigin origin) { return doubleAtPut(name, strlen(name), value, origin); }
duke@435	301
duke@435	302	static bool ccstrAt(char* name, size_t len, ccstr* value);
duke@435	303	static bool ccstrAt(char* name, ccstr* value) { return ccstrAt(name, strlen(name), value); }
duke@435	304	static bool ccstrAtPut(char* name, size_t len, ccstr* value, FlagValueOrigin origin);
duke@435	305	static bool ccstrAtPut(char* name, ccstr* value, FlagValueOrigin origin) { return ccstrAtPut(name, strlen(name), value, origin); }
duke@435	306
duke@435	307	// Returns false if name is not a command line flag.
duke@435	308	static bool wasSetOnCmdline(const char* name, bool* value);
duke@435	309	static void printSetFlags();
duke@435	310
ikrylov@2123	311	static void printFlags(bool withComments = false );
duke@435	312
duke@435	313	static void verify() PRODUCT_RETURN;
duke@435	314	};
duke@435	315
duke@435	316	// use this for flags that are true by default in the debug version but
duke@435	317	// false in the optimized version, and vice versa
duke@435	318	#ifdef ASSERT
duke@435	319	#define trueInDebug true
duke@435	320	#define falseInDebug false
duke@435	321	#else
duke@435	322	#define trueInDebug false
duke@435	323	#define falseInDebug true
duke@435	324	#endif
duke@435	325
duke@435	326	// use this for flags that are true per default in the product build
duke@435	327	// but false in development builds, and vice versa
duke@435	328	#ifdef PRODUCT
duke@435	329	#define trueInProduct true
duke@435	330	#define falseInProduct false
duke@435	331	#else
duke@435	332	#define trueInProduct false
duke@435	333	#define falseInProduct true
duke@435	334	#endif
duke@435	335
duke@435	336	// use this for flags that are true per default in the tiered build
duke@435	337	// but false in non-tiered builds, and vice versa
duke@435	338	#ifdef TIERED
duke@435	339	#define trueInTiered true
duke@435	340	#define falseInTiered false
duke@435	341	#else
duke@435	342	#define trueInTiered false
duke@435	343	#define falseInTiered true
duke@435	344	#endif
duke@435	345
duke@435	346	// develop flags are settable / visible only during development and are constant in the PRODUCT version
duke@435	347	// product flags are always settable / visible
duke@435	348	// notproduct flags are settable / visible only during development and are not declared in the PRODUCT version
duke@435	349
duke@435	350	// A flag must be declared with one of the following types:
duke@435	351	// bool, intx, uintx, ccstr.
duke@435	352	// The type "ccstr" is an alias for "const char*" and is used
duke@435	353	// only in this file, because the macrology requires single-token type names.
duke@435	354
duke@435	355	// Note: Diagnostic options not meant for VM tuning or for product modes.
duke@435	356	// They are to be used for VM quality assurance or field diagnosis
duke@435	357	// of VM bugs. They are hidden so that users will not be encouraged to
duke@435	358	// try them as if they were VM ordinary execution options. However, they
duke@435	359	// are available in the product version of the VM. Under instruction
duke@435	360	// from support engineers, VM customers can turn them on to collect
duke@435	361	// diagnostic information about VM problems. To use a VM diagnostic
duke@435	362	// option, you must first specify +UnlockDiagnosticVMOptions.
duke@435	363	// (This master switch also affects the behavior of -Xprintflags.)
ysr@785	364	//
ysr@785	365	// experimental flags are in support of features that are not
ysr@785	366	// part of the officially supported product, but are available
ysr@785	367	// for experimenting with. They could, for example, be performance
ysr@785	368	// features that may not have undergone full or rigorous QA, but which may
ysr@785	369	// help performance in some cases and released for experimentation
ysr@785	370	// by the community of users and developers. This flag also allows one to
ysr@785	371	// be able to build a fully supported product that nonetheless also
ysr@785	372	// ships with some unsupported, lightly tested, experimental features.
ysr@785	373	// Like the UnlockDiagnosticVMOptions flag above, there is a corresponding
ysr@785	374	// UnlockExperimentalVMOptions flag, which allows the control and
ysr@785	375	// modification of the experimental flags.
ysr@785	376	//
ysr@2192	377	// Nota bene: neither diagnostic nor experimental options should be used casually,
ysr@2192	378	// and they are not supported on production loads, except under explicit
ysr@2192	379	// direction from support engineers.
ysr@2192	380	//
duke@435	381	// manageable flags are writeable external product flags.
duke@435	382	// They are dynamically writeable through the JDK management interface
duke@435	383	// (com.sun.management.HotSpotDiagnosticMXBean API) and also through JConsole.
duke@435	384	// These flags are external exported interface (see CCC). The list of
duke@435	385	// manageable flags can be queried programmatically through the management
duke@435	386	// interface.
duke@435	387	//
duke@435	388	// A flag can be made as "manageable" only if
duke@435	389	// - the flag is defined in a CCC as an external exported interface.
duke@435	390	// - the VM implementation supports dynamic setting of the flag.
duke@435	391	// This implies that the VM must *always* query the flag variable
duke@435	392	// and not reuse state related to the flag state at any given time.
duke@435	393	// - you want the flag to be queried programmatically by the customers.
duke@435	394	//
duke@435	395	// product_rw flags are writeable internal product flags.
duke@435	396	// They are like "manageable" flags but for internal/private use.
duke@435	397	// The list of product_rw flags are internal/private flags which
duke@435	398	// may be changed/removed in a future release. It can be set
duke@435	399	// through the management interface to get/set value
duke@435	400	// when the name of flag is supplied.
duke@435	401	//
duke@435	402	// A flag can be made as "product_rw" only if
duke@435	403	// - the VM implementation supports dynamic setting of the flag.
duke@435	404	// This implies that the VM must *always* query the flag variable
duke@435	405	// and not reuse state related to the flag state at any given time.
duke@435	406	//
duke@435	407	// Note that when there is a need to support develop flags to be writeable,
duke@435	408	// it can be done in the same way as product_rw.
duke@435	409
ysr@785	410	#define RUNTIME_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw, lp64_product) \
coleenp@548	411	\
coleenp@548	412	lp64_product(bool, UseCompressedOops, false, \
coleenp@548	413	"Use 32-bit object references in 64-bit VM. " \
coleenp@548	414	"lp64_product means flag is always constant in 32 bit VM") \
duke@435	415	\
kvn@1077	416	notproduct(bool, CheckCompressedOops, true, \
kvn@1077	417	"generate checks in encoding/decoding code in debug VM") \
kvn@1077	418	\
kvn@1077	419	product_pd(uintx, HeapBaseMinAddress, \
kvn@1077	420	"OS specific low limit for heap base address") \
kvn@1077	421	\
kvn@1077	422	diagnostic(bool, PrintCompressedOopsMode, false, \
kvn@1077	423	"Print compressed oops base address and encoding mode") \
coleenp@760	424	\
kvn@1926	425	lp64_product(intx, ObjectAlignmentInBytes, 8, \
kvn@1926	426	"Default object alignment in bytes, 8 is minimum") \
kvn@1926	427	\
duke@435	428	/* UseMembar is theoretically a temp flag used for memory barrier \
duke@435	429	* removal testing. It was supposed to be removed before FCS but has \
duke@435	430	* been re-added (see 6401008) */ \
bobv@2223	431	product_pd(bool, UseMembar, \
duke@435	432	"(Unstable) Issues membars on thread state transitions") \
duke@435	433	\
bobv@2508	434	/* Temp PPC Flag to allow disabling the use of lwsync on ppc platforms \
bobv@2508	435	* that don't support it. This will be replaced by processor detection \
bobv@2508	436	* logic. \
bobv@2508	437	*/ \
bobv@2508	438	product(bool, UsePPCLWSYNC, true, \
bobv@2508	439	"Use lwsync instruction if true, else use slower sync") \
bobv@2508	440	\
bobv@2508	441	/* Temporary: See 6948537 */ \
ysr@1873	442	experimental(bool, UseMemSetInBOT, true, \
ysr@1873	443	"(Unstable) uses memset in BOT updates in GC code") \
ysr@1873	444	\
duke@435	445	diagnostic(bool, UnlockDiagnosticVMOptions, trueInDebug, \
ysr@785	446	"Enable normal processing of flags relating to field diagnostics")\
ysr@785	447	\
ysr@785	448	experimental(bool, UnlockExperimentalVMOptions, false, \
ysr@785	449	"Enable normal processing of flags relating to experimental features")\
duke@435	450	\
duke@435	451	product(bool, JavaMonitorsInStackTrace, true, \
duke@435	452	"Print info. about Java monitor locks when the stacks are dumped")\
duke@435	453	\
duke@435	454	product_pd(bool, UseLargePages, \
duke@435	455	"Use large page memory") \
duke@435	456	\
jmasa@824	457	product_pd(bool, UseLargePagesIndividualAllocation, \
jmasa@824	458	"Allocate large pages individually for better affinity") \
jmasa@824	459	\
jmasa@824	460	develop(bool, LargePagesIndividualAllocationInjectError, false, \
jmasa@824	461	"Fail large pages individual allocation") \
jmasa@824	462	\
duke@435	463	develop(bool, TracePageSizes, false, \
duke@435	464	"Trace page size selection and usage.") \
duke@435	465	\
duke@435	466	product(bool, UseNUMA, false, \
duke@435	467	"Use NUMA if available") \
duke@435	468	\
iveresov@897	469	product(bool, ForceNUMA, false, \
iveresov@897	470	"Force NUMA optimizations on single-node/UMA systems") \
iveresov@897	471	\
duke@435	472	product(intx, NUMAChunkResizeWeight, 20, \
duke@435	473	"Percentage (0-100) used to weight the current sample when " \
duke@435	474	"computing exponentially decaying average for " \
duke@435	475	"AdaptiveNUMAChunkSizing") \
duke@435	476	\
duke@435	477	product(intx, NUMASpaceResizeRate, 1*G, \
duke@435	478	"Do not reallocate more that this amount per collection") \
duke@435	479	\
duke@435	480	product(bool, UseAdaptiveNUMAChunkSizing, true, \
duke@435	481	"Enable adaptive chunk sizing for NUMA") \
duke@435	482	\
duke@435	483	product(bool, NUMAStats, false, \
duke@435	484	"Print NUMA stats in detailed heap information") \
duke@435	485	\
duke@435	486	product(intx, NUMAPageScanRate, 256, \
duke@435	487	"Maximum number of pages to include in the page scan procedure") \
duke@435	488	\
duke@435	489	product_pd(bool, NeedsDeoptSuspend, \
duke@435	490	"True for register window machines (sparc/ia64)") \
duke@435	491	\
duke@435	492	product(intx, UseSSE, 99, \
duke@435	493	"Highest supported SSE instructions set on x86/x64") \
duke@435	494	\
duke@435	495	product(uintx, LargePageSizeInBytes, 0, \
duke@435	496	"Large page size (0 to let VM choose the page size") \
duke@435	497	\
duke@435	498	product(uintx, LargePageHeapSizeThreshold, 128*M, \
duke@435	499	"Use large pages if max heap is at least this big") \
duke@435	500	\
duke@435	501	product(bool, ForceTimeHighResolution, false, \
duke@435	502	"Using high time resolution(For Win32 only)") \
duke@435	503	\
duke@435	504	develop(bool, TraceItables, false, \
duke@435	505	"Trace initialization and use of itables") \
duke@435	506	\
duke@435	507	develop(bool, TracePcPatching, false, \
duke@435	508	"Trace usage of frame::patch_pc") \
duke@435	509	\
duke@435	510	develop(bool, TraceJumps, false, \
duke@435	511	"Trace assembly jumps in thread ring buffer") \
duke@435	512	\
duke@435	513	develop(bool, TraceRelocator, false, \
duke@435	514	"Trace the bytecode relocator") \
duke@435	515	\
duke@435	516	develop(bool, TraceLongCompiles, false, \
duke@435	517	"Print out every time compilation is longer than " \
duke@435	518	"a given threashold") \
duke@435	519	\
duke@435	520	develop(bool, SafepointALot, false, \
duke@435	521	"Generates a lot of safepoints. Works with " \
duke@435	522	"GuaranteedSafepointInterval") \
duke@435	523	\
duke@435	524	product_pd(bool, BackgroundCompilation, \
duke@435	525	"A thread requesting compilation is not blocked during " \
duke@435	526	"compilation") \
duke@435	527	\
duke@435	528	product(bool, PrintVMQWaitTime, false, \
duke@435	529	"Prints out the waiting time in VM operation queue") \
duke@435	530	\
duke@435	531	develop(bool, BailoutToInterpreterForThrows, false, \
duke@435	532	"Compiled methods which throws/catches exceptions will be " \
duke@435	533	"deopt and intp.") \
duke@435	534	\
duke@435	535	develop(bool, NoYieldsInMicrolock, false, \
duke@435	536	"Disable yields in microlock") \
duke@435	537	\
duke@435	538	develop(bool, TraceOopMapGeneration, false, \
duke@435	539	"Shows oopmap generation") \
duke@435	540	\
duke@435	541	product(bool, MethodFlushing, true, \
duke@435	542	"Reclamation of zombie and not-entrant methods") \
duke@435	543	\
duke@435	544	develop(bool, VerifyStack, false, \
duke@435	545	"Verify stack of each thread when it is entering a runtime call") \
duke@435	546	\
duke@435	547	develop(bool, ForceUnreachable, false, \
duke@435	548	"(amd64) Make all non code cache addresses to be unreachable with rip-rel forcing use of 64bit literal fixups") \
duke@435	549	\
duke@435	550	notproduct(bool, StressDerivedPointers, false, \
duke@435	551	"Force scavenge when a derived pointers is detected on stack " \
duke@435	552	"after rtm call") \
duke@435	553	\
duke@435	554	develop(bool, TraceDerivedPointers, false, \
duke@435	555	"Trace traversal of derived pointers on stack") \
duke@435	556	\
duke@435	557	notproduct(bool, TraceCodeBlobStacks, false, \
duke@435	558	"Trace stack-walk of codeblobs") \
duke@435	559	\
duke@435	560	product(bool, PrintJNIResolving, false, \
duke@435	561	"Used to implement -v:jni") \
duke@435	562	\
duke@435	563	notproduct(bool, PrintRewrites, false, \
duke@435	564	"Print methods that are being rewritten") \
duke@435	565	\
duke@435	566	product(bool, UseInlineCaches, true, \
duke@435	567	"Use Inline Caches for virtual calls ") \
duke@435	568	\
duke@435	569	develop(bool, InlineArrayCopy, true, \
duke@435	570	"inline arraycopy native that is known to be part of " \
duke@435	571	"base library DLL") \
duke@435	572	\
duke@435	573	develop(bool, InlineObjectHash, true, \
duke@435	574	"inline Object::hashCode() native that is known to be part " \
duke@435	575	"of base library DLL") \
duke@435	576	\
duke@435	577	develop(bool, InlineObjectCopy, true, \
duke@435	578	"inline Object.clone and Arrays.copyOf[Range] intrinsics") \
duke@435	579	\
duke@435	580	develop(bool, InlineNatives, true, \
duke@435	581	"inline natives that are known to be part of base library DLL") \
duke@435	582	\
duke@435	583	develop(bool, InlineMathNatives, true, \
duke@435	584	"inline SinD, CosD, etc.") \
duke@435	585	\
duke@435	586	develop(bool, InlineClassNatives, true, \
duke@435	587	"inline Class.isInstance, etc") \
duke@435	588	\
duke@435	589	develop(bool, InlineAtomicLong, true, \
duke@435	590	"inline sun.misc.AtomicLong") \
duke@435	591	\
duke@435	592	develop(bool, InlineThreadNatives, true, \
duke@435	593	"inline Thread.currentThread, etc") \
duke@435	594	\
duke@435	595	develop(bool, InlineReflectionGetCallerClass, true, \
duke@435	596	"inline sun.reflect.Reflection.getCallerClass(), known to be part "\
duke@435	597	"of base library DLL") \
duke@435	598	\
duke@435	599	develop(bool, InlineUnsafeOps, true, \
duke@435	600	"inline memory ops (native methods) from sun.misc.Unsafe") \
duke@435	601	\
duke@435	602	develop(bool, ConvertCmpD2CmpF, true, \
duke@435	603	"Convert cmpD to cmpF when one input is constant in float range") \
duke@435	604	\
duke@435	605	develop(bool, ConvertFloat2IntClipping, true, \
duke@435	606	"Convert float2int clipping idiom to integer clipping") \
duke@435	607	\
duke@435	608	develop(bool, SpecialStringCompareTo, true, \
duke@435	609	"special version of string compareTo") \
duke@435	610	\
duke@435	611	develop(bool, SpecialStringIndexOf, true, \
duke@435	612	"special version of string indexOf") \
duke@435	613	\
cfang@1116	614	develop(bool, SpecialStringEquals, true, \
cfang@1116	615	"special version of string equals") \
cfang@1116	616	\
cfang@1116	617	develop(bool, SpecialArraysEquals, true, \
rasbold@604	618	"special version of Arrays.equals(char[],char[])") \
rasbold@604	619	\
cfang@1116	620	product(bool, UseSSE42Intrinsics, false, \
cfang@1116	621	"SSE4.2 versions of intrinsics") \
cfang@1116	622	\
never@2814	623	product(bool, UseCondCardMark, false, \
never@2814	624	"Check for already marked card before updating card table") \
never@2814	625	\
duke@435	626	develop(bool, TraceCallFixup, false, \
duke@435	627	"traces all call fixups") \
duke@435	628	\
duke@435	629	develop(bool, DeoptimizeALot, false, \
duke@435	630	"deoptimize at every exit from the runtime system") \
duke@435	631	\
kvn@869	632	notproduct(ccstrlist, DeoptimizeOnlyAt, "", \
duke@435	633	"a comma separated list of bcis to deoptimize at") \
duke@435	634	\
duke@435	635	product(bool, DeoptimizeRandom, false, \
duke@435	636	"deoptimize random frames on random exit from the runtime system")\
duke@435	637	\
duke@435	638	notproduct(bool, ZombieALot, false, \
duke@435	639	"creates zombies (non-entrant) at exit from the runt. system") \
duke@435	640	\
coleenp@2497	641	product(bool, UnlinkSymbolsALot, false, \
coleenp@2497	642	"unlink unreferenced symbols from the symbol table at safepoints")\
coleenp@2497	643	\
duke@435	644	notproduct(bool, WalkStackALot, false, \
duke@435	645	"trace stack (no print) at every exit from the runtime system") \
duke@435	646	\
duke@435	647	develop(bool, Debugging, false, \
duke@435	648	"set when executing debug methods in debug.ccp " \
duke@435	649	"(to prevent triggering assertions)") \
duke@435	650	\
duke@435	651	notproduct(bool, StrictSafepointChecks, trueInDebug, \
duke@435	652	"Enable strict checks that safepoints cannot happen for threads " \
duke@435	653	"that used No_Safepoint_Verifier") \
duke@435	654	\
duke@435	655	notproduct(bool, VerifyLastFrame, false, \
duke@435	656	"Verify oops on last frame on entry to VM") \
duke@435	657	\
duke@435	658	develop(bool, TraceHandleAllocation, false, \
duke@435	659	"Prints out warnings when suspicious many handles are allocated") \
duke@435	660	\
duke@435	661	product(bool, UseCompilerSafepoints, true, \
duke@435	662	"Stop at safepoints in compiled code") \
duke@435	663	\
duke@435	664	product(bool, UseSplitVerifier, true, \
duke@435	665	"use split verifier with StackMapTable attributes") \
duke@435	666	\
duke@435	667	product(bool, FailOverToOldVerifier, true, \
duke@435	668	"fail over to old verifier when split verifier fails") \
duke@435	669	\
duke@435	670	develop(bool, ShowSafepointMsgs, false, \
duke@435	671	"Show msg. about safepoint synch.") \
duke@435	672	\
duke@435	673	product(bool, SafepointTimeout, false, \
duke@435	674	"Time out and warn or fail after SafepointTimeoutDelay " \
duke@435	675	"milliseconds if failed to reach safepoint") \
duke@435	676	\
duke@435	677	develop(bool, DieOnSafepointTimeout, false, \
duke@435	678	"Die upon failure to reach safepoint (see SafepointTimeout)") \
duke@435	679	\
duke@435	680	/* 50 retries * (5 * current_retry_count) millis = ~6.375 seconds */ \
duke@435	681	/* typically, at most a few retries are needed */ \
duke@435	682	product(intx, SuspendRetryCount, 50, \
duke@435	683	"Maximum retry count for an external suspend request") \
duke@435	684	\
duke@435	685	product(intx, SuspendRetryDelay, 5, \
duke@435	686	"Milliseconds to delay per retry (* current_retry_count)") \
duke@435	687	\
duke@435	688	product(bool, AssertOnSuspendWaitFailure, false, \
duke@435	689	"Assert/Guarantee on external suspend wait failure") \
duke@435	690	\
duke@435	691	product(bool, TraceSuspendWaitFailures, false, \
duke@435	692	"Trace external suspend wait failures") \
duke@435	693	\
duke@435	694	product(bool, MaxFDLimit, true, \
duke@435	695	"Bump the number of file descriptors to max in solaris.") \
duke@435	696	\
duke@435	697	notproduct(bool, LogEvents, trueInDebug, \
duke@435	698	"Enable Event log") \
duke@435	699	\
duke@435	700	product(bool, BytecodeVerificationRemote, true, \
duke@435	701	"Enables the Java bytecode verifier for remote classes") \
duke@435	702	\
duke@435	703	product(bool, BytecodeVerificationLocal, false, \
duke@435	704	"Enables the Java bytecode verifier for local classes") \
duke@435	705	\
duke@435	706	develop(bool, ForceFloatExceptions, trueInDebug, \
duke@435	707	"Force exceptions on FP stack under/overflow") \
duke@435	708	\
duke@435	709	develop(bool, SoftMatchFailure, trueInProduct, \
duke@435	710	"If the DFA fails to match a node, print a message and bail out") \
duke@435	711	\
duke@435	712	develop(bool, VerifyStackAtCalls, false, \
duke@435	713	"Verify that the stack pointer is unchanged after calls") \
duke@435	714	\
duke@435	715	develop(bool, TraceJavaAssertions, false, \
duke@435	716	"Trace java language assertions") \
duke@435	717	\
duke@435	718	notproduct(bool, CheckAssertionStatusDirectives, false, \
duke@435	719	"temporary - see javaClasses.cpp") \
duke@435	720	\
duke@435	721	notproduct(bool, PrintMallocFree, false, \
duke@435	722	"Trace calls to C heap malloc/free allocation") \
duke@435	723	\
bobv@2036	724	product(bool, PrintOopAddress, false, \
duke@435	725	"Always print the location of the oop") \
duke@435	726	\
duke@435	727	notproduct(bool, VerifyCodeCacheOften, false, \
duke@435	728	"Verify compiled-code cache often") \
duke@435	729	\
duke@435	730	develop(bool, ZapDeadCompiledLocals, false, \
duke@435	731	"Zap dead locals in compiler frames") \
duke@435	732	\
duke@435	733	notproduct(bool, ZapDeadLocalsOld, false, \
duke@435	734	"Zap dead locals (old version, zaps all frames when " \
duke@435	735	"entering the VM") \
duke@435	736	\
duke@435	737	notproduct(bool, CheckOopishValues, false, \
duke@435	738	"Warn if value contains oop ( requires ZapDeadLocals)") \
duke@435	739	\
duke@435	740	develop(bool, UseMallocOnly, false, \
duke@435	741	"use only malloc/free for allocation (no resource area/arena)") \
duke@435	742	\
duke@435	743	develop(bool, PrintMalloc, false, \
duke@435	744	"print all malloc/free calls") \
duke@435	745	\
kvn@2557	746	develop(bool, PrintMallocStatistics, false, \
kvn@2557	747	"print malloc/free statistics") \
kvn@2557	748	\
duke@435	749	develop(bool, ZapResourceArea, trueInDebug, \
duke@435	750	"Zap freed resource/arena space with 0xABABABAB") \
duke@435	751	\
duke@435	752	notproduct(bool, ZapVMHandleArea, trueInDebug, \
duke@435	753	"Zap freed VM handle space with 0xBCBCBCBC") \
duke@435	754	\
duke@435	755	develop(bool, ZapJNIHandleArea, trueInDebug, \
duke@435	756	"Zap freed JNI handle space with 0xFEFEFEFE") \
duke@435	757	\
jcoomes@2191	758	notproduct(bool, ZapStackSegments, trueInDebug, \
jcoomes@2191	759	"Zap allocated/freed Stack segments with 0xFADFADED") \
jcoomes@2191	760	\
jmasa@698	761	develop(bool, ZapUnusedHeapArea, trueInDebug, \
duke@435	762	"Zap unused heap space with 0xBAADBABE") \
duke@435	763	\
jmasa@698	764	develop(bool, TraceZapUnusedHeapArea, false, \
jmasa@698	765	"Trace zapping of unused heap space") \
jmasa@698	766	\
jmasa@698	767	develop(bool, CheckZapUnusedHeapArea, false, \
jmasa@698	768	"Check zapping of unused heap space") \
jmasa@698	769	\
jcoomes@916	770	develop(bool, ZapFillerObjects, trueInDebug, \
jcoomes@916	771	"Zap filler objects with 0xDEAFBABE") \
jcoomes@916	772	\
duke@435	773	develop(bool, PrintVMMessages, true, \
duke@435	774	"Print vm messages on console") \
duke@435	775	\
duke@435	776	product(bool, PrintGCApplicationConcurrentTime, false, \
duke@435	777	"Print the time the application has been running") \
duke@435	778	\
duke@435	779	product(bool, PrintGCApplicationStoppedTime, false, \
duke@435	780	"Print the time the application has been stopped") \
duke@435	781	\
jcoomes@1845	782	notproduct(uintx, ErrorHandlerTest, 0, \
jcoomes@1845	783	"If > 0, provokes an error after VM initialization; the value" \
jcoomes@1845	784	"determines which error to provoke. See test_error_handler()" \
jcoomes@1845	785	"in debug.cpp.") \
jcoomes@1845	786	\
duke@435	787	develop(bool, Verbose, false, \
duke@435	788	"Prints additional debugging information from other modes") \
duke@435	789	\
duke@435	790	develop(bool, PrintMiscellaneous, false, \
duke@435	791	"Prints uncategorized debugging information (requires +Verbose)") \
duke@435	792	\
duke@435	793	develop(bool, WizardMode, false, \
duke@435	794	"Prints much more debugging information") \
duke@435	795	\
duke@435	796	product(bool, ShowMessageBoxOnError, false, \
duke@435	797	"Keep process alive on VM fatal error") \
duke@435	798	\
ctornqvi@2520	799	product(bool, CreateMinidumpOnCrash, false, \
ctornqvi@2520	800	"Create minidump on VM fatal error") \
ctornqvi@2520	801	\
duke@435	802	product_pd(bool, UseOSErrorReporting, \
duke@435	803	"Let VM fatal error propagate to the OS (ie. WER on Windows)") \
duke@435	804	\
duke@435	805	product(bool, SuppressFatalErrorMessage, false, \
duke@435	806	"Do NO Fatal Error report [Avoid deadlock]") \
duke@435	807	\
duke@435	808	product(ccstrlist, OnError, "", \
duke@435	809	"Run user-defined commands on fatal error; see VMError.cpp " \
duke@435	810	"for examples") \
duke@435	811	\
duke@435	812	product(ccstrlist, OnOutOfMemoryError, "", \
duke@435	813	"Run user-defined commands on first java.lang.OutOfMemoryError") \
duke@435	814	\
ysr@1050	815	manageable(bool, HeapDumpBeforeFullGC, false, \
ysr@1050	816	"Dump heap to file before any major stop-world GC") \
ysr@1050	817	\
ysr@1050	818	manageable(bool, HeapDumpAfterFullGC, false, \
ysr@1050	819	"Dump heap to file after any major stop-world GC") \
ysr@1050	820	\
duke@435	821	manageable(bool, HeapDumpOnOutOfMemoryError, false, \
duke@435	822	"Dump heap to file when java.lang.OutOfMemoryError is thrown") \
duke@435	823	\
duke@435	824	manageable(ccstr, HeapDumpPath, NULL, \
duke@435	825	"When HeapDumpOnOutOfMemoryError is on, the path (filename or" \
duke@435	826	"directory) of the dump file (defaults to java_pid<pid>.hprof" \
duke@435	827	"in the working directory)") \
duke@435	828	\
duke@435	829	develop(uintx, SegmentedHeapDumpThreshold, 2*G, \
duke@435	830	"Generate a segmented heap dump (JAVA PROFILE 1.0.2 format) " \
duke@435	831	"when the heap usage is larger than this") \
duke@435	832	\
duke@435	833	develop(uintx, HeapDumpSegmentSize, 1*G, \
duke@435	834	"Approximate segment size when generating a segmented heap dump") \
duke@435	835	\
duke@435	836	develop(bool, BreakAtWarning, false, \
duke@435	837	"Execute breakpoint upon encountering VM warning") \
duke@435	838	\
duke@435	839	product_pd(bool, UseVectoredExceptions, \
duke@435	840	"Temp Flag - Use Vectored Exceptions rather than SEH (Windows Only)") \
duke@435	841	\
duke@435	842	develop(bool, TraceVMOperation, false, \
duke@435	843	"Trace vm operations") \
duke@435	844	\
duke@435	845	develop(bool, UseFakeTimers, false, \
duke@435	846	"Tells whether the VM should use system time or a fake timer") \
duke@435	847	\
duke@435	848	diagnostic(bool, LogCompilation, false, \
duke@435	849	"Log compilation activity in detail to hotspot.log or LogFile") \
duke@435	850	\
duke@435	851	product(bool, PrintCompilation, false, \
duke@435	852	"Print compilations") \
duke@435	853	\
duke@435	854	diagnostic(bool, TraceNMethodInstalls, false, \
duke@435	855	"Trace nmethod intallation") \
duke@435	856	\
jcoomes@2661	857	diagnostic(intx, ScavengeRootsInCode, 1, \
jrose@1424	858	"0: do not allow scavengable oops in the code cache; " \
jrose@1424	859	"1: allow scavenging from the code cache; " \
jrose@1424	860	"2: emit as many constants as the compiler can see") \
jrose@1424	861	\
duke@435	862	diagnostic(bool, TraceOSRBreakpoint, false, \
duke@435	863	"Trace OSR Breakpoint ") \
duke@435	864	\
duke@435	865	diagnostic(bool, TraceCompileTriggered, false, \
duke@435	866	"Trace compile triggered") \
duke@435	867	\
duke@435	868	diagnostic(bool, TraceTriggers, false, \
duke@435	869	"Trace triggers") \
duke@435	870	\
duke@435	871	product(bool, AlwaysRestoreFPU, false, \
duke@435	872	"Restore the FPU control word after every JNI call (expensive)") \
duke@435	873	\
duke@435	874	notproduct(bool, PrintCompilation2, false, \
duke@435	875	"Print additional statistics per compilation") \
duke@435	876	\
jrose@535	877	diagnostic(bool, PrintAdapterHandlers, false, \
duke@435	878	"Print code generated for i2c/c2i adapters") \
duke@435	879	\
never@1642	880	develop(bool, VerifyAdapterSharing, false, \
never@1642	881	"Verify that the code for shared adapters is the equivalent") \
never@1642	882	\
jrose@535	883	diagnostic(bool, PrintAssembly, false, \
jrose@535	884	"Print assembly code (using external disassembler.so)") \
jrose@535	885	\
never@805	886	diagnostic(ccstr, PrintAssemblyOptions, NULL, \
jrose@535	887	"Options string passed to disassembler.so") \
jrose@535	888	\
jrose@535	889	diagnostic(bool, PrintNMethods, false, \
duke@435	890	"Print assembly code for nmethods when generated") \
duke@435	891	\
jrose@535	892	diagnostic(bool, PrintNativeNMethods, false, \
duke@435	893	"Print assembly code for native nmethods when generated") \
duke@435	894	\
duke@435	895	develop(bool, PrintDebugInfo, false, \
duke@435	896	"Print debug information for all nmethods when generated") \
duke@435	897	\
duke@435	898	develop(bool, PrintRelocations, false, \
duke@435	899	"Print relocation information for all nmethods when generated") \
duke@435	900	\
duke@435	901	develop(bool, PrintDependencies, false, \
duke@435	902	"Print dependency information for all nmethods when generated") \
duke@435	903	\
duke@435	904	develop(bool, PrintExceptionHandlers, false, \
duke@435	905	"Print exception handler tables for all nmethods when generated") \
duke@435	906	\
duke@435	907	develop(bool, InterceptOSException, false, \
duke@435	908	"Starts debugger when an implicit OS (e.g., NULL) " \
duke@435	909	"exception happens") \
duke@435	910	\
duke@435	911	notproduct(bool, PrintCodeCache, false, \
duke@435	912	"Print the compiled_code cache when exiting") \
duke@435	913	\
duke@435	914	develop(bool, PrintCodeCache2, false, \
duke@435	915	"Print detailed info on the compiled_code cache when exiting") \
duke@435	916	\
jrose@535	917	diagnostic(bool, PrintStubCode, false, \
duke@435	918	"Print generated stub code") \
duke@435	919	\
duke@435	920	product(bool, StackTraceInThrowable, true, \
duke@435	921	"Collect backtrace in throwable when exception happens") \
duke@435	922	\
duke@435	923	product(bool, OmitStackTraceInFastThrow, true, \
duke@435	924	"Omit backtraces for some 'hot' exceptions in optimized code") \
duke@435	925	\
duke@435	926	product(bool, ProfilerPrintByteCodeStatistics, false, \
duke@435	927	"Prints byte code statictics when dumping profiler output") \
duke@435	928	\
duke@435	929	product(bool, ProfilerRecordPC, false, \
duke@435	930	"Collects tick for each 16 byte interval of compiled code") \
duke@435	931	\
phh@1499	932	product(bool, ProfileVM, false, \
duke@435	933	"Profiles ticks that fall within VM (either in the VM Thread " \
duke@435	934	"or VM code called through stubs)") \
duke@435	935	\
duke@435	936	product(bool, ProfileIntervals, false, \
duke@435	937	"Prints profiles for each interval (see ProfileIntervalsTicks)") \
duke@435	938	\
duke@435	939	notproduct(bool, ProfilerCheckIntervals, false, \
duke@435	940	"Collect and print info on spacing of profiler ticks") \
duke@435	941	\
duke@435	942	develop(bool, PrintJVMWarnings, false, \
duke@435	943	"Prints warnings for unimplemented JVM functions") \
duke@435	944	\
kamg@2225	945	product(bool, PrintWarnings, true, \
kamg@2225	946	"Prints JVM warnings to output stream") \
kamg@2225	947	\
duke@435	948	notproduct(uintx, WarnOnStalledSpinLock, 0, \
duke@435	949	"Prints warnings for stalled SpinLocks") \
duke@435	950	\
duke@435	951	develop(bool, InitializeJavaLangSystem, true, \
duke@435	952	"Initialize java.lang.System - turn off for individual " \
duke@435	953	"method debugging") \
duke@435	954	\
duke@435	955	develop(bool, InitializeJavaLangString, true, \
duke@435	956	"Initialize java.lang.String - turn off for individual " \
duke@435	957	"method debugging") \
duke@435	958	\
duke@435	959	develop(bool, InitializeJavaLangExceptionsErrors, true, \
duke@435	960	"Initialize various error and exception classes - turn off for " \
duke@435	961	"individual method debugging") \
duke@435	962	\
duke@435	963	product(bool, RegisterFinalizersAtInit, true, \
duke@435	964	"Register finalizable objects at end of Object.<init> or " \
phh@1499	965	"after allocation") \
duke@435	966	\
duke@435	967	develop(bool, RegisterReferences, true, \
duke@435	968	"Tells whether the VM should register soft/weak/final/phantom " \
duke@435	969	"references") \
duke@435	970	\
duke@435	971	develop(bool, IgnoreRewrites, false, \
duke@435	972	"Supress rewrites of bytecodes in the oopmap generator. " \
duke@435	973	"This is unsafe!") \
duke@435	974	\
duke@435	975	develop(bool, PrintCodeCacheExtension, false, \
duke@435	976	"Print extension of code cache") \
duke@435	977	\
duke@435	978	develop(bool, UsePrivilegedStack, true, \
duke@435	979	"Enable the security JVM functions") \
duke@435	980	\
duke@435	981	develop(bool, IEEEPrecision, true, \
duke@435	982	"Enables IEEE precision (for INTEL only)") \
duke@435	983	\
duke@435	984	develop(bool, ProtectionDomainVerification, true, \
duke@435	985	"Verifies protection domain before resolution in system " \
duke@435	986	"dictionary") \
duke@435	987	\
duke@435	988	product(bool, ClassUnloading, true, \
duke@435	989	"Do unloading of classes") \
duke@435	990	\
jrose@909	991	diagnostic(bool, LinkWellKnownClasses, false, \
jrose@567	992	"Resolve a well known class as soon as its name is seen") \
jrose@567	993	\
duke@435	994	develop(bool, DisableStartThread, false, \
duke@435	995	"Disable starting of additional Java threads " \
duke@435	996	"(for debugging only)") \
duke@435	997	\
duke@435	998	develop(bool, MemProfiling, false, \
duke@435	999	"Write memory usage profiling to log file") \
duke@435	1000	\
duke@435	1001	notproduct(bool, PrintSystemDictionaryAtExit, false, \
duke@435	1002	"Prints the system dictionary at exit") \
duke@435	1003	\
duke@435	1004	diagnostic(bool, UnsyncloadClass, false, \
acorn@949	1005	"Unstable: VM calls loadClass unsynchronized. Custom " \
acorn@949	1006	"class loader must call VM synchronized for findClass " \
acorn@949	1007	"and defineClass.") \
acorn@949	1008	\
acorn@949	1009	product(bool, AlwaysLockClassLoader, false, \
acorn@949	1010	"Require the VM to acquire the class loader lock before calling " \
acorn@949	1011	"loadClass() even for class loaders registering " \
phh@1499	1012	"as parallel capable") \
acorn@949	1013	\
acorn@949	1014	product(bool, AllowParallelDefineClass, false, \
acorn@949	1015	"Allow parallel defineClass requests for class loaders " \
phh@1499	1016	"registering as parallel capable") \
acorn@949	1017	\
acorn@949	1018	product(bool, MustCallLoadClassInternal, false, \
phh@1499	1019	"Call loadClassInternal() rather than loadClass()") \
duke@435	1020	\
duke@435	1021	product_pd(bool, DontYieldALot, \
duke@435	1022	"Throw away obvious excess yield calls (for SOLARIS only)") \
duke@435	1023	\
duke@435	1024	product_pd(bool, ConvertSleepToYield, \
duke@435	1025	"Converts sleep(0) to thread yield " \
duke@435	1026	"(may be off for SOLARIS to improve GUI)") \
duke@435	1027	\
duke@435	1028	product(bool, ConvertYieldToSleep, false, \
duke@435	1029	"Converts yield to a sleep of MinSleepInterval to simulate Win32 "\
duke@435	1030	"behavior (SOLARIS only)") \
duke@435	1031	\
duke@435	1032	product(bool, UseBoundThreads, true, \
duke@435	1033	"Bind user level threads to kernel threads (for SOLARIS only)") \
duke@435	1034	\
duke@435	1035	develop(bool, UseDetachedThreads, true, \
duke@435	1036	"Use detached threads that are recycled upon termination " \
duke@435	1037	"(for SOLARIS only)") \
duke@435	1038	\
duke@435	1039	product(bool, UseLWPSynchronization, true, \
duke@435	1040	"Use LWP-based instead of libthread-based synchronization " \
duke@435	1041	"(SPARC only)") \
duke@435	1042	\
never@805	1043	product(ccstr, SyncKnobs, NULL, \
duke@435	1044	"(Unstable) Various monitor synchronization tunables") \
duke@435	1045	\
duke@435	1046	product(intx, EmitSync, 0, \
duke@435	1047	"(Unsafe,Unstable) " \
duke@435	1048	" Controls emission of inline sync fast-path code") \
duke@435	1049	\
duke@435	1050	product(intx, AlwaysInflate, 0, "(Unstable) Force inflation") \
duke@435	1051	\
acorn@1942	1052	product(intx, MonitorBound, 0, "Bound Monitor population") \
acorn@1942	1053	\
acorn@1942	1054	product(bool, MonitorInUseLists, false, "Track Monitors for Deflation") \
acorn@1942	1055	\
duke@435	1056	product(intx, Atomics, 0, \
duke@435	1057	"(Unsafe,Unstable) Diagnostic - Controls emission of atomics") \
duke@435	1058	\
duke@435	1059	product(intx, FenceInstruction, 0, \
duke@435	1060	"(Unsafe,Unstable) Experimental") \
duke@435	1061	\
duke@435	1062	product(intx, SyncFlags, 0, "(Unsafe,Unstable) Experimental Sync flags" ) \
duke@435	1063	\
duke@435	1064	product(intx, SyncVerbose, 0, "(Unstable)" ) \
duke@435	1065	\
duke@435	1066	product(intx, ClearFPUAtPark, 0, "(Unsafe,Unstable)" ) \
duke@435	1067	\
duke@435	1068	product(intx, hashCode, 0, \
duke@435	1069	"(Unstable) select hashCode generation algorithm" ) \
duke@435	1070	\
duke@435	1071	product(intx, WorkAroundNPTLTimedWaitHang, 1, \
duke@435	1072	"(Unstable, Linux-specific)" \
duke@435	1073	" avoid NPTL-FUTEX hang pthread_cond_timedwait" ) \
duke@435	1074	\
phh@1499	1075	product(bool, FilterSpuriousWakeups, true, \
phh@1499	1076	"Prevent spurious or premature wakeups from object.wait " \
phh@1499	1077	"(Solaris only)") \
duke@435	1078	\
duke@435	1079	product(intx, NativeMonitorTimeout, -1, "(Unstable)" ) \
duke@435	1080	product(intx, NativeMonitorFlags, 0, "(Unstable)" ) \
duke@435	1081	product(intx, NativeMonitorSpinLimit, 20, "(Unstable)" ) \
duke@435	1082	\
duke@435	1083	develop(bool, UsePthreads, false, \
duke@435	1084	"Use pthread-based instead of libthread-based synchronization " \
duke@435	1085	"(SPARC only)") \
duke@435	1086	\
duke@435	1087	product(bool, AdjustConcurrency, false, \
duke@435	1088	"call thr_setconcurrency at thread create time to avoid " \
duke@435	1089	"LWP starvation on MP systems (For Solaris Only)") \
duke@435	1090	\
duke@435	1091	develop(bool, UpdateHotSpotCompilerFileOnError, true, \
duke@435	1092	"Should the system attempt to update the compiler file when " \
duke@435	1093	"an error occurs?") \
duke@435	1094	\
duke@435	1095	product(bool, ReduceSignalUsage, false, \
duke@435	1096	"Reduce the use of OS signals in Java and/or the VM") \
duke@435	1097	\
duke@435	1098	notproduct(bool, ValidateMarkSweep, false, \
duke@435	1099	"Do extra validation during MarkSweep collection") \
duke@435	1100	\
duke@435	1101	notproduct(bool, RecordMarkSweepCompaction, false, \
duke@435	1102	"Enable GC-to-GC recording and querying of compaction during " \
duke@435	1103	"MarkSweep") \
duke@435	1104	\
duke@435	1105	develop_pd(bool, ShareVtableStubs, \
duke@435	1106	"Share vtable stubs (smaller code but worse branch prediction") \
duke@435	1107	\
duke@435	1108	develop(bool, LoadLineNumberTables, true, \
duke@435	1109	"Tells whether the class file parser loads line number tables") \
duke@435	1110	\
duke@435	1111	develop(bool, LoadLocalVariableTables, true, \
duke@435	1112	"Tells whether the class file parser loads local variable tables")\
duke@435	1113	\
duke@435	1114	develop(bool, LoadLocalVariableTypeTables, true, \
duke@435	1115	"Tells whether the class file parser loads local variable type tables")\
duke@435	1116	\
duke@435	1117	product(bool, AllowUserSignalHandlers, false, \
duke@435	1118	"Do not complain if the application installs signal handlers " \
duke@435	1119	"(Solaris & Linux only)") \
duke@435	1120	\
duke@435	1121	product(bool, UseSignalChaining, true, \
duke@435	1122	"Use signal-chaining to invoke signal handlers installed " \
duke@435	1123	"by the application (Solaris & Linux only)") \
duke@435	1124	\
duke@435	1125	product(bool, UseAltSigs, false, \
duke@435	1126	"Use alternate signals instead of SIGUSR1 & SIGUSR2 for VM " \
phh@1499	1127	"internal signals (Solaris only)") \
duke@435	1128	\
duke@435	1129	product(bool, UseSpinning, false, \
duke@435	1130	"Use spinning in monitor inflation and before entry") \
duke@435	1131	\
duke@435	1132	product(bool, PreSpinYield, false, \
duke@435	1133	"Yield before inner spinning loop") \
duke@435	1134	\
duke@435	1135	product(bool, PostSpinYield, true, \
duke@435	1136	"Yield after inner spinning loop") \
duke@435	1137	\
duke@435	1138	product(bool, AllowJNIEnvProxy, false, \
duke@435	1139	"Allow JNIEnv proxies for jdbx") \
duke@435	1140	\
duke@435	1141	product(bool, JNIDetachReleasesMonitors, true, \
duke@435	1142	"JNI DetachCurrentThread releases monitors owned by thread") \
duke@435	1143	\
duke@435	1144	product(bool, RestoreMXCSROnJNICalls, false, \
duke@435	1145	"Restore MXCSR when returning from JNI calls") \
duke@435	1146	\
duke@435	1147	product(bool, CheckJNICalls, false, \
duke@435	1148	"Verify all arguments to JNI calls") \
duke@435	1149	\
duke@435	1150	product(bool, UseFastJNIAccessors, true, \
duke@435	1151	"Use optimized versions of Get<Primitive>Field") \
duke@435	1152	\
duke@435	1153	product(bool, EagerXrunInit, false, \
duke@435	1154	"Eagerly initialize -Xrun libraries; allows startup profiling, " \
duke@435	1155	" but not all -Xrun libraries may support the state of the VM at this time") \
duke@435	1156	\
duke@435	1157	product(bool, PreserveAllAnnotations, false, \
duke@435	1158	"Preserve RuntimeInvisibleAnnotations as well as RuntimeVisibleAnnotations") \
duke@435	1159	\
duke@435	1160	develop(uintx, PreallocatedOutOfMemoryErrorCount, 4, \
duke@435	1161	"Number of OutOfMemoryErrors preallocated with backtrace") \
duke@435	1162	\
duke@435	1163	product(bool, LazyBootClassLoader, true, \
duke@435	1164	"Enable/disable lazy opening of boot class path entries") \
duke@435	1165	\
duke@435	1166	diagnostic(bool, UseIncDec, true, \
duke@435	1167	"Use INC, DEC instructions on x86") \
duke@435	1168	\
kvn@654	1169	product(bool, UseNewLongLShift, false, \
kvn@654	1170	"Use optimized bitwise shift left") \
kvn@654	1171	\
duke@435	1172	product(bool, UseStoreImmI16, true, \
duke@435	1173	"Use store immediate 16-bits value instruction on x86") \
duke@435	1174	\
duke@435	1175	product(bool, UseAddressNop, false, \
duke@435	1176	"Use '0F 1F [addr]' NOP instructions on x86 cpus") \
duke@435	1177	\
duke@435	1178	product(bool, UseXmmLoadAndClearUpper, true, \
duke@435	1179	"Load low part of XMM register and clear upper part") \
duke@435	1180	\
duke@435	1181	product(bool, UseXmmRegToRegMoveAll, false, \
duke@435	1182	"Copy all XMM register bits when moving value between registers") \
duke@435	1183	\
kvn@506	1184	product(bool, UseXmmI2D, false, \
kvn@506	1185	"Use SSE2 CVTDQ2PD instruction to convert Integer to Double") \
kvn@506	1186	\
kvn@506	1187	product(bool, UseXmmI2F, false, \
kvn@506	1188	"Use SSE2 CVTDQ2PS instruction to convert Integer to Float") \
kvn@506	1189	\
kvn@840	1190	product(bool, UseXMMForArrayCopy, false, \
kvn@840	1191	"Use SSE2 MOVQ instruction for Arraycopy") \
kvn@840	1192	\
kvn@840	1193	product(bool, UseUnalignedLoadStores, false, \
kvn@840	1194	"Use SSE2 MOVDQU instruction for Arraycopy") \
kvn@840	1195	\
duke@435	1196	product(intx, FieldsAllocationStyle, 1, \
kvn@1801	1197	"0 - type based with oops first, 1 - with oops last, " \
kvn@1801	1198	"2 - oops in super and sub classes are together") \
duke@435	1199	\
duke@435	1200	product(bool, CompactFields, true, \
duke@435	1201	"Allocate nonstatic fields in gaps between previous fields") \
duke@435	1202	\
duke@435	1203	notproduct(bool, PrintCompactFieldsSavings, false, \
duke@435	1204	"Print how many words were saved with CompactFields") \
duke@435	1205	\
duke@435	1206	product(bool, UseBiasedLocking, true, \
duke@435	1207	"Enable biased locking in JVM") \
duke@435	1208	\
duke@435	1209	product(intx, BiasedLockingStartupDelay, 4000, \
duke@435	1210	"Number of milliseconds to wait before enabling biased locking") \
duke@435	1211	\
duke@435	1212	diagnostic(bool, PrintBiasedLockingStatistics, false, \
duke@435	1213	"Print statistics of biased locking in JVM") \
duke@435	1214	\
duke@435	1215	product(intx, BiasedLockingBulkRebiasThreshold, 20, \
duke@435	1216	"Threshold of number of revocations per type to try to " \
duke@435	1217	"rebias all objects in the heap of that type") \
duke@435	1218	\
duke@435	1219	product(intx, BiasedLockingBulkRevokeThreshold, 40, \
duke@435	1220	"Threshold of number of revocations per type to permanently " \
duke@435	1221	"revoke biases of all objects in the heap of that type") \
duke@435	1222	\
duke@435	1223	product(intx, BiasedLockingDecayTime, 25000, \
duke@435	1224	"Decay time (in milliseconds) to re-enable bulk rebiasing of a " \
duke@435	1225	"type after previous bulk rebias") \
duke@435	1226	\
never@2658	1227	develop(bool, JavaObjectsInPerm, false, \
never@2658	1228	"controls whether Classes and interned Strings are allocated" \
never@2658	1229	"in perm. This purely intended to allow debugging issues" \
never@2658	1230	"in production.") \
never@2658	1231	\
duke@435	1232	/* tracing */ \
duke@435	1233	\
duke@435	1234	notproduct(bool, TraceRuntimeCalls, false, \
duke@435	1235	"Trace run-time calls") \
duke@435	1236	\
duke@435	1237	develop(bool, TraceJNICalls, false, \
duke@435	1238	"Trace JNI calls") \
duke@435	1239	\
duke@435	1240	notproduct(bool, TraceJVMCalls, false, \
duke@435	1241	"Trace JVM calls") \
duke@435	1242	\
never@805	1243	product(ccstr, TraceJVMTI, NULL, \
duke@435	1244	"Trace flags for JVMTI functions and events") \
duke@435	1245	\
duke@435	1246	/* This option can change an EMCP method into an obsolete method. */ \
duke@435	1247	/* This can affect tests that except specific methods to be EMCP. */ \
duke@435	1248	/* This option should be used with caution. */ \
duke@435	1249	product(bool, StressLdcRewrite, false, \
duke@435	1250	"Force ldc -> ldc_w rewrite during RedefineClasses") \
duke@435	1251	\
duke@435	1252	product(intx, TraceRedefineClasses, 0, \
duke@435	1253	"Trace level for JVMTI RedefineClasses") \
duke@435	1254	\
jrose@1929	1255	develop(bool, StressMethodComparator, false, \
jrose@1929	1256	"run the MethodComparator on all loaded methods") \
jrose@1929	1257	\
duke@435	1258	/* change to false by default sometime after Mustang */ \
duke@435	1259	product(bool, VerifyMergedCPBytecodes, true, \
duke@435	1260	"Verify bytecodes after RedefineClasses constant pool merging") \
duke@435	1261	\
duke@435	1262	develop(bool, TraceJNIHandleAllocation, false, \
duke@435	1263	"Trace allocation/deallocation of JNI handle blocks") \
duke@435	1264	\
duke@435	1265	develop(bool, TraceThreadEvents, false, \
duke@435	1266	"Trace all thread events") \
duke@435	1267	\
duke@435	1268	develop(bool, TraceBytecodes, false, \
duke@435	1269	"Trace bytecode execution") \
duke@435	1270	\
duke@435	1271	develop(bool, TraceClassInitialization, false, \
duke@435	1272	"Trace class initialization") \
duke@435	1273	\
duke@435	1274	develop(bool, TraceExceptions, false, \
duke@435	1275	"Trace exceptions") \
duke@435	1276	\
duke@435	1277	develop(bool, TraceICs, false, \
duke@435	1278	"Trace inline cache changes") \
duke@435	1279	\
duke@435	1280	notproduct(bool, TraceInvocationCounterOverflow, false, \
duke@435	1281	"Trace method invocation counter overflow") \
duke@435	1282	\
duke@435	1283	develop(bool, TraceInlineCacheClearing, false, \
duke@435	1284	"Trace clearing of inline caches in nmethods") \
duke@435	1285	\
duke@435	1286	develop(bool, TraceDependencies, false, \
duke@435	1287	"Trace dependencies") \
duke@435	1288	\
duke@435	1289	develop(bool, VerifyDependencies, trueInDebug, \
duke@435	1290	"Exercise and verify the compilation dependency mechanism") \
duke@435	1291	\
duke@435	1292	develop(bool, TraceNewOopMapGeneration, false, \
duke@435	1293	"Trace OopMapGeneration") \
duke@435	1294	\
duke@435	1295	develop(bool, TraceNewOopMapGenerationDetailed, false, \
duke@435	1296	"Trace OopMapGeneration: print detailed cell states") \
duke@435	1297	\
duke@435	1298	develop(bool, TimeOopMap, false, \
duke@435	1299	"Time calls to GenerateOopMap::compute_map() in sum") \
duke@435	1300	\
duke@435	1301	develop(bool, TimeOopMap2, false, \
duke@435	1302	"Time calls to GenerateOopMap::compute_map() individually") \
duke@435	1303	\
duke@435	1304	develop(bool, TraceMonitorMismatch, false, \
duke@435	1305	"Trace monitor matching failures during OopMapGeneration") \
duke@435	1306	\
duke@435	1307	develop(bool, TraceOopMapRewrites, false, \
duke@435	1308	"Trace rewritting of method oops during oop map generation") \
duke@435	1309	\
duke@435	1310	develop(bool, TraceSafepoint, false, \
duke@435	1311	"Trace safepoint operations") \
duke@435	1312	\
duke@435	1313	develop(bool, TraceICBuffer, false, \
duke@435	1314	"Trace usage of IC buffer") \
duke@435	1315	\
duke@435	1316	develop(bool, TraceCompiledIC, false, \
duke@435	1317	"Trace changes of compiled IC") \
duke@435	1318	\
duke@435	1319	notproduct(bool, TraceZapDeadLocals, false, \
duke@435	1320	"Trace zapping dead locals") \
duke@435	1321	\
duke@435	1322	develop(bool, TraceStartupTime, false, \
duke@435	1323	"Trace setup time") \
duke@435	1324	\
duke@435	1325	product(ccstr, HPILibPath, NULL, \
duke@435	1326	"Specify alternate path to HPI library") \
duke@435	1327	\
duke@435	1328	develop(bool, TraceProtectionDomainVerification, false, \
duke@435	1329	"Trace protection domain verifcation") \
duke@435	1330	\
duke@435	1331	develop(bool, TraceClearedExceptions, false, \
duke@435	1332	"Prints when an exception is forcibly cleared") \
duke@435	1333	\
duke@435	1334	product(bool, TraceClassResolution, false, \
duke@435	1335	"Trace all constant pool resolutions (for debugging)") \
duke@435	1336	\
duke@435	1337	product(bool, TraceBiasedLocking, false, \
duke@435	1338	"Trace biased locking in JVM") \
duke@435	1339	\
duke@435	1340	product(bool, TraceMonitorInflation, false, \
duke@435	1341	"Trace monitor inflation in JVM") \
duke@435	1342	\
duke@435	1343	/* assembler */ \
duke@435	1344	product(bool, Use486InstrsOnly, false, \
duke@435	1345	"Use 80486 Compliant instruction subset") \
duke@435	1346	\
duke@435	1347	/* gc */ \
duke@435	1348	\
duke@435	1349	product(bool, UseSerialGC, false, \
ysr@777	1350	"Use the serial garbage collector") \
ysr@777	1351	\
tonyp@1628	1352	product(bool, UseG1GC, false, \
ysr@777	1353	"Use the Garbage-First garbage collector") \
duke@435	1354	\
duke@435	1355	product(bool, UseParallelGC, false, \
duke@435	1356	"Use the Parallel Scavenge garbage collector") \
duke@435	1357	\
duke@435	1358	product(bool, UseParallelOldGC, false, \
duke@435	1359	"Use the Parallel Old garbage collector") \
duke@435	1360	\
duke@435	1361	product(uintx, HeapMaximumCompactionInterval, 20, \
duke@435	1362	"How often should we maximally compact the heap (not allowing " \
duke@435	1363	"any dead space)") \
duke@435	1364	\
duke@435	1365	product(uintx, HeapFirstMaximumCompactionCount, 3, \
duke@435	1366	"The collection count for the first maximum compaction") \
duke@435	1367	\
duke@435	1368	product(bool, UseMaximumCompactionOnSystemGC, true, \
duke@435	1369	"In the Parallel Old garbage collector maximum compaction for " \
duke@435	1370	"a system GC") \
duke@435	1371	\
duke@435	1372	product(uintx, ParallelOldDeadWoodLimiterMean, 50, \
duke@435	1373	"The mean used by the par compact dead wood" \
duke@435	1374	"limiter (a number between 0-100).") \
duke@435	1375	\
duke@435	1376	product(uintx, ParallelOldDeadWoodLimiterStdDev, 80, \
duke@435	1377	"The standard deviation used by the par compact dead wood" \
duke@435	1378	"limiter (a number between 0-100).") \
duke@435	1379	\
duke@435	1380	product(uintx, ParallelGCThreads, 0, \
duke@435	1381	"Number of parallel threads parallel gc will use") \
duke@435	1382	\
jcoomes@918	1383	develop(bool, ParallelOldGCSplitALot, false, \
jcoomes@918	1384	"Provoke splitting (copying data from a young gen space to" \
jcoomes@918	1385	"multiple destination spaces)") \
jcoomes@918	1386	\
jcoomes@918	1387	develop(uintx, ParallelOldGCSplitInterval, 3, \
jcoomes@918	1388	"How often to provoke splitting a young gen space") \
duke@435	1389	\
jcoomes@810	1390	develop(bool, TraceRegionTasksQueuing, false, \
jcoomes@810	1391	"Trace the queuing of the region tasks") \
duke@435	1392	\
jmasa@1719	1393	product(uintx, ConcGCThreads, 0, \
jmasa@1719	1394	"Number of threads concurrent gc will use") \
ysr@777	1395	\
duke@435	1396	product(uintx, YoungPLABSize, 4096, \
duke@435	1397	"Size of young gen promotion labs (in HeapWords)") \
duke@435	1398	\
duke@435	1399	product(uintx, OldPLABSize, 1024, \
duke@435	1400	"Size of old gen promotion labs (in HeapWords)") \
duke@435	1401	\
duke@435	1402	product(uintx, GCTaskTimeStampEntries, 200, \
duke@435	1403	"Number of time stamp entries per gc worker thread") \
duke@435	1404	\
duke@435	1405	product(bool, AlwaysTenure, false, \
duke@435	1406	"Always tenure objects in eden. (ParallelGC only)") \
duke@435	1407	\
duke@435	1408	product(bool, NeverTenure, false, \
phh@1499	1409	"Never tenure objects in eden, May tenure on overflow " \
phh@1499	1410	"(ParallelGC only)") \
duke@435	1411	\
duke@435	1412	product(bool, ScavengeBeforeFullGC, true, \
phh@1499	1413	"Scavenge youngest generation before each full GC, " \
phh@1499	1414	"used with UseParallelGC") \
duke@435	1415	\
duke@435	1416	develop(bool, ScavengeWithObjectsInToSpace, false, \
duke@435	1417	"Allow scavenges to occur when to_space contains objects.") \
duke@435	1418	\
duke@435	1419	product(bool, UseConcMarkSweepGC, false, \
duke@435	1420	"Use Concurrent Mark-Sweep GC in the old generation") \
duke@435	1421	\
duke@435	1422	product(bool, ExplicitGCInvokesConcurrent, false, \
duke@435	1423	"A System.gc() request invokes a concurrent collection;" \
duke@435	1424	" (effective only when UseConcMarkSweepGC)") \
duke@435	1425	\
duke@435	1426	product(bool, ExplicitGCInvokesConcurrentAndUnloadsClasses, false, \
phh@1499	1427	"A System.gc() request invokes a concurrent collection and " \
phh@1499	1428	"also unloads classes during such a concurrent gc cycle " \
phh@1499	1429	"(effective only when UseConcMarkSweepGC)") \
duke@435	1430	\
ysr@1875	1431	product(bool, GCLockerInvokesConcurrent, false, \
ysr@1875	1432	"The exit of a JNI CS necessitating a scavenge also" \
ysr@1875	1433	" kicks off a bkgrd concurrent collection") \
ysr@1875	1434	\
tonyp@2333	1435	product(uintx, GCLockerEdenExpansionPercent, 5, \
tonyp@2333	1436	"How much the GC can expand the eden by while the GC locker " \
tonyp@2333	1437	"is active (as a percentage)") \
tonyp@2333	1438	\
duke@435	1439	develop(bool, UseCMSAdaptiveFreeLists, true, \
duke@435	1440	"Use Adaptive Free Lists in the CMS generation") \
duke@435	1441	\
duke@435	1442	develop(bool, UseAsyncConcMarkSweepGC, true, \
duke@435	1443	"Use Asynchronous Concurrent Mark-Sweep GC in the old generation")\
duke@435	1444	\
duke@435	1445	develop(bool, RotateCMSCollectionTypes, false, \
duke@435	1446	"Rotate the CMS collections among concurrent and STW") \
duke@435	1447	\
duke@435	1448	product(bool, UseCMSBestFit, true, \
duke@435	1449	"Use CMS best fit allocation strategy") \
duke@435	1450	\
duke@435	1451	product(bool, UseCMSCollectionPassing, true, \
duke@435	1452	"Use passing of collection from background to foreground") \
duke@435	1453	\
duke@435	1454	product(bool, UseParNewGC, false, \
duke@435	1455	"Use parallel threads in the new generation.") \
duke@435	1456	\
duke@435	1457	product(bool, ParallelGCVerbose, false, \
duke@435	1458	"Verbose output for parallel GC.") \
duke@435	1459	\
duke@435	1460	product(intx, ParallelGCBufferWastePct, 10, \
duke@435	1461	"wasted fraction of parallel allocation buffer.") \
duke@435	1462	\
duke@435	1463	product(bool, ParallelGCRetainPLAB, true, \
duke@435	1464	"Retain parallel allocation buffers across scavenges.") \
duke@435	1465	\
duke@435	1466	product(intx, TargetPLABWastePct, 10, \
duke@435	1467	"target wasted space in last buffer as pct of overall allocation")\
duke@435	1468	\
duke@435	1469	product(uintx, PLABWeight, 75, \
duke@435	1470	"Percentage (0-100) used to weight the current sample when" \
duke@435	1471	"computing exponentially decaying average for ResizePLAB.") \
duke@435	1472	\
duke@435	1473	product(bool, ResizePLAB, true, \
duke@435	1474	"Dynamically resize (survivor space) promotion labs") \
duke@435	1475	\
duke@435	1476	product(bool, PrintPLAB, false, \
duke@435	1477	"Print (survivor space) promotion labs sizing decisions") \
duke@435	1478	\
duke@435	1479	product(intx, ParGCArrayScanChunk, 50, \
duke@435	1480	"Scan a subset and push remainder, if array is bigger than this") \
duke@435	1481	\
ysr@1130	1482	product(bool, ParGCUseLocalOverflow, false, \
ysr@1130	1483	"Instead of a global overflow list, use local overflow stacks") \
ysr@1130	1484	\
ysr@1114	1485	product(bool, ParGCTrimOverflow, true, \
ysr@1130	1486	"Eagerly trim the local overflow lists (when ParGCUseLocalOverflow") \
ysr@1114	1487	\
ysr@969	1488	notproduct(bool, ParGCWorkQueueOverflowALot, false, \
ysr@969	1489	"Whether we should simulate work queue overflow in ParNew") \
ysr@969	1490	\
ysr@969	1491	notproduct(uintx, ParGCWorkQueueOverflowInterval, 1000, \
phh@1499	1492	"An `interval' counter that determines how frequently " \
phh@1499	1493	"we simulate overflow; a smaller number increases frequency") \
ysr@969	1494	\
ysr@969	1495	product(uintx, ParGCDesiredObjsFromOverflowList, 20, \
duke@435	1496	"The desired number of objects to claim from the overflow list") \
duke@435	1497	\
ysr@1580	1498	product(uintx, CMSParPromoteBlocksToClaim, 16, \
duke@435	1499	"Number of blocks to attempt to claim when refilling CMS LAB for "\
duke@435	1500	"parallel GC.") \
duke@435	1501	\
ysr@1580	1502	product(uintx, OldPLABWeight, 50, \
ysr@1580	1503	"Percentage (0-100) used to weight the current sample when" \
ysr@1580	1504	"computing exponentially decaying average for resizing CMSParPromoteBlocksToClaim.") \
ysr@1580	1505	\
ysr@1580	1506	product(bool, ResizeOldPLAB, true, \
ysr@1580	1507	"Dynamically resize (old gen) promotion labs") \
ysr@1580	1508	\
ysr@1580	1509	product(bool, PrintOldPLAB, false, \
ysr@1580	1510	"Print (old gen) promotion labs sizing decisions") \
ysr@1580	1511	\
ysr@1580	1512	product(uintx, CMSOldPLABMin, 16, \
ysr@1580	1513	"Min size of CMS gen promotion lab caches per worker per blksize")\
ysr@1580	1514	\
ysr@1580	1515	product(uintx, CMSOldPLABMax, 1024, \
ysr@1580	1516	"Max size of CMS gen promotion lab caches per worker per blksize")\
ysr@1580	1517	\
ysr@1580	1518	product(uintx, CMSOldPLABNumRefills, 4, \
ysr@1580	1519	"Nominal number of refills of CMS gen promotion lab cache" \
ysr@1580	1520	" per worker per block size") \
ysr@1580	1521	\
ysr@1580	1522	product(bool, CMSOldPLABResizeQuicker, false, \
ysr@1580	1523	"Whether to react on-the-fly during a scavenge to a sudden" \
ysr@1580	1524	" change in block demand rate") \
ysr@1580	1525	\
ysr@1580	1526	product(uintx, CMSOldPLABToleranceFactor, 4, \
ysr@1580	1527	"The tolerance of the phase-change detector for on-the-fly" \
ysr@1580	1528	" PLAB resizing during a scavenge") \
ysr@1580	1529	\
ysr@1580	1530	product(uintx, CMSOldPLABReactivityFactor, 2, \
ysr@1580	1531	"The gain in the feedback loop for on-the-fly PLAB resizing" \
ysr@1580	1532	" during a scavenge") \
ysr@1580	1533	\
ysr@1580	1534	product(uintx, CMSOldPLABReactivityCeiling, 10, \
ysr@1580	1535	"The clamping of the gain in the feedback loop for on-the-fly" \
ysr@1580	1536	" PLAB resizing during a scavenge") \
ysr@1580	1537	\
duke@435	1538	product(bool, AlwaysPreTouch, false, \
duke@435	1539	"It forces all freshly committed pages to be pre-touched.") \
duke@435	1540	\
ysr@2650	1541	product_pd(intx, CMSYoungGenPerWorker, \
ysr@2650	1542	"The maximum size of young gen chosen by default per GC worker " \
phh@1499	1543	"thread available") \
duke@435	1544	\
ysr@777	1545	product(bool, GCOverheadReporting, false, \
ysr@777	1546	"Enables the GC overhead reporting facility") \
ysr@777	1547	\
ysr@777	1548	product(intx, GCOverheadReportingPeriodMS, 100, \
ysr@777	1549	"Reporting period for conc GC overhead reporting, in ms ") \
ysr@777	1550	\
duke@435	1551	product(bool, CMSIncrementalMode, false, \
duke@435	1552	"Whether CMS GC should operate in \"incremental\" mode") \
duke@435	1553	\
duke@435	1554	product(uintx, CMSIncrementalDutyCycle, 10, \
duke@435	1555	"CMS incremental mode duty cycle (a percentage, 0-100). If" \
duke@435	1556	"CMSIncrementalPacing is enabled, then this is just the initial" \
duke@435	1557	"value") \
duke@435	1558	\
duke@435	1559	product(bool, CMSIncrementalPacing, true, \
duke@435	1560	"Whether the CMS incremental mode duty cycle should be " \
duke@435	1561	"automatically adjusted") \
duke@435	1562	\
duke@435	1563	product(uintx, CMSIncrementalDutyCycleMin, 0, \
phh@1499	1564	"Lower bound on the duty cycle when CMSIncrementalPacing is " \
phh@1499	1565	"enabled (a percentage, 0-100)") \
duke@435	1566	\
duke@435	1567	product(uintx, CMSIncrementalSafetyFactor, 10, \
phh@1499	1568	"Percentage (0-100) used to add conservatism when computing the " \
phh@1499	1569	"duty cycle") \
duke@435	1570	\
duke@435	1571	product(uintx, CMSIncrementalOffset, 0, \
duke@435	1572	"Percentage (0-100) by which the CMS incremental mode duty cycle" \
phh@1499	1573	" is shifted to the right within the period between young GCs") \
duke@435	1574	\
ysr@1580	1575	product(uintx, CMSExpAvgFactor, 50, \
ysr@1580	1576	"Percentage (0-100) used to weight the current sample when" \
ysr@1580	1577	"computing exponential averages for CMS statistics.") \
ysr@1580	1578	\
ysr@1580	1579	product(uintx, CMS_FLSWeight, 75, \
ysr@1580	1580	"Percentage (0-100) used to weight the current sample when" \
ysr@1580	1581	"computing exponentially decating averages for CMS FLS statistics.") \
ysr@1580	1582	\
ysr@1580	1583	product(uintx, CMS_FLSPadding, 1, \
ysr@1580	1584	"The multiple of deviation from mean to use for buffering" \
duke@435	1585	"against volatility in free list demand.") \
duke@435	1586	\
duke@435	1587	product(uintx, FLSCoalescePolicy, 2, \
duke@435	1588	"CMS: Aggression level for coalescing, increasing from 0 to 4") \
duke@435	1589	\
ysr@1580	1590	product(bool, FLSAlwaysCoalesceLarge, false, \
ysr@1580	1591	"CMS: Larger free blocks are always available for coalescing") \
ysr@1580	1592	\
ysr@1580	1593	product(double, FLSLargestBlockCoalesceProximity, 0.99, \
ysr@1580	1594	"CMS: the smaller the percentage the greater the coalition force")\
ysr@1580	1595	\
ysr@1580	1596	product(double, CMSSmallCoalSurplusPercent, 1.05, \
ysr@1580	1597	"CMS: the factor by which to inflate estimated demand of small" \
ysr@1580	1598	" block sizes to prevent coalescing with an adjoining block") \
ysr@1580	1599	\
ysr@1580	1600	product(double, CMSLargeCoalSurplusPercent, 0.95, \
ysr@1580	1601	"CMS: the factor by which to inflate estimated demand of large" \
ysr@1580	1602	" block sizes to prevent coalescing with an adjoining block") \
ysr@1580	1603	\
ysr@1580	1604	product(double, CMSSmallSplitSurplusPercent, 1.10, \
ysr@1580	1605	"CMS: the factor by which to inflate estimated demand of small" \
ysr@1580	1606	" block sizes to prevent splitting to supply demand for smaller" \
ysr@1580	1607	" blocks") \
ysr@1580	1608	\
ysr@1580	1609	product(double, CMSLargeSplitSurplusPercent, 1.00, \
ysr@1580	1610	"CMS: the factor by which to inflate estimated demand of large" \
ysr@1580	1611	" block sizes to prevent splitting to supply demand for smaller" \
ysr@1580	1612	" blocks") \
ysr@1580	1613	\
ysr@1580	1614	product(bool, CMSExtrapolateSweep, false, \
ysr@1580	1615	"CMS: cushion for block demand during sweep") \
ysr@1580	1616	\
ysr@1580	1617	product(uintx, CMS_SweepWeight, 75, \
phh@1499	1618	"Percentage (0-100) used to weight the current sample when " \
phh@1499	1619	"computing exponentially decaying average for inter-sweep " \
phh@1499	1620	"duration") \
duke@435	1621	\
ysr@1580	1622	product(uintx, CMS_SweepPadding, 1, \
phh@1499	1623	"The multiple of deviation from mean to use for buffering " \
duke@435	1624	"against volatility in inter-sweep duration.") \
duke@435	1625	\
duke@435	1626	product(uintx, CMS_SweepTimerThresholdMillis, 10, \
duke@435	1627	"Skip block flux-rate sampling for an epoch unless inter-sweep " \
phh@1499	1628	"duration exceeds this threhold in milliseconds") \
duke@435	1629	\
duke@435	1630	develop(bool, CMSTraceIncrementalMode, false, \
duke@435	1631	"Trace CMS incremental mode") \
duke@435	1632	\
duke@435	1633	develop(bool, CMSTraceIncrementalPacing, false, \
duke@435	1634	"Trace CMS incremental mode pacing computation") \
duke@435	1635	\
duke@435	1636	develop(bool, CMSTraceThreadState, false, \
duke@435	1637	"Trace the CMS thread state (enable the trace_state() method)") \
duke@435	1638	\
duke@435	1639	product(bool, CMSClassUnloadingEnabled, false, \
duke@435	1640	"Whether class unloading enabled when using CMS GC") \
duke@435	1641	\
ysr@529	1642	product(uintx, CMSClassUnloadingMaxInterval, 0, \
ysr@529	1643	"When CMS class unloading is enabled, the maximum CMS cycle count"\
ysr@529	1644	" for which classes may not be unloaded") \
ysr@529	1645	\
duke@435	1646	product(bool, CMSCompactWhenClearAllSoftRefs, true, \
duke@435	1647	"Compact when asked to collect CMS gen with clear_all_soft_refs") \
duke@435	1648	\
duke@435	1649	product(bool, UseCMSCompactAtFullCollection, true, \
duke@435	1650	"Use mark sweep compact at full collections") \
duke@435	1651	\
duke@435	1652	product(uintx, CMSFullGCsBeforeCompaction, 0, \
duke@435	1653	"Number of CMS full collection done before compaction if > 0") \
duke@435	1654	\
duke@435	1655	develop(intx, CMSDictionaryChoice, 0, \
duke@435	1656	"Use BinaryTreeDictionary as default in the CMS generation") \
duke@435	1657	\
duke@435	1658	product(uintx, CMSIndexedFreeListReplenish, 4, \
ysr@2132	1659	"Replenish an indexed free list with this number of chunks") \
duke@435	1660	\
ysr@1580	1661	product(bool, CMSReplenishIntermediate, true, \
ysr@1580	1662	"Replenish all intermediate free-list caches") \
ysr@1580	1663	\
ysr@1580	1664	product(bool, CMSSplitIndexedFreeListBlocks, true, \
ysr@2132	1665	"When satisfying batched demand, split blocks from the " \
ysr@1580	1666	"IndexedFreeList whose size is a multiple of requested size") \
ysr@1580	1667	\
duke@435	1668	product(bool, CMSLoopWarn, false, \
duke@435	1669	"Warn in case of excessive CMS looping") \
duke@435	1670	\
duke@435	1671	develop(bool, CMSOverflowEarlyRestoration, false, \
duke@435	1672	"Whether preserved marks should be restored early") \
duke@435	1673	\
jmasa@1719	1674	product(uintx, MarkStackSize, NOT_LP64(32*K) LP64_ONLY(4*M), \
jmasa@1719	1675	"Size of marking stack") \
jmasa@1719	1676	\
jmasa@1719	1677	product(uintx, MarkStackSizeMax, NOT_LP64(4*M) LP64_ONLY(512*M), \
jmasa@1719	1678	"Max size of marking stack") \
duke@435	1679	\
duke@435	1680	notproduct(bool, CMSMarkStackOverflowALot, false, \
duke@435	1681	"Whether we should simulate frequent marking stack / work queue" \
duke@435	1682	" overflow") \
duke@435	1683	\
ysr@969	1684	notproduct(uintx, CMSMarkStackOverflowInterval, 1000, \
ysr@969	1685	"An `interval' counter that determines how frequently" \
duke@435	1686	" we simulate overflow; a smaller number increases frequency") \
duke@435	1687	\
duke@435	1688	product(uintx, CMSMaxAbortablePrecleanLoops, 0, \
duke@435	1689	"(Temporary, subject to experimentation)" \
duke@435	1690	"Maximum number of abortable preclean iterations, if > 0") \
duke@435	1691	\
duke@435	1692	product(intx, CMSMaxAbortablePrecleanTime, 5000, \
duke@435	1693	"(Temporary, subject to experimentation)" \
duke@435	1694	"Maximum time in abortable preclean in ms") \
duke@435	1695	\
duke@435	1696	product(uintx, CMSAbortablePrecleanMinWorkPerIteration, 100, \
duke@435	1697	"(Temporary, subject to experimentation)" \
duke@435	1698	"Nominal minimum work per abortable preclean iteration") \
duke@435	1699	\
ysr@2242	1700	manageable(intx, CMSAbortablePrecleanWaitMillis, 100, \
duke@435	1701	"(Temporary, subject to experimentation)" \
duke@435	1702	" Time that we sleep between iterations when not given" \
duke@435	1703	" enough work per iteration") \
duke@435	1704	\
duke@435	1705	product(uintx, CMSRescanMultiple, 32, \
duke@435	1706	"Size (in cards) of CMS parallel rescan task") \
duke@435	1707	\
duke@435	1708	product(uintx, CMSConcMarkMultiple, 32, \
duke@435	1709	"Size (in cards) of CMS concurrent MT marking task") \
duke@435	1710	\
duke@435	1711	product(uintx, CMSRevisitStackSize, 1*M, \
duke@435	1712	"Size of CMS KlassKlass revisit stack") \
duke@435	1713	\
duke@435	1714	product(bool, CMSAbortSemantics, false, \
duke@435	1715	"Whether abort-on-overflow semantics is implemented") \
duke@435	1716	\
duke@435	1717	product(bool, CMSParallelRemarkEnabled, true, \
duke@435	1718	"Whether parallel remark enabled (only if ParNewGC)") \
duke@435	1719	\
duke@435	1720	product(bool, CMSParallelSurvivorRemarkEnabled, true, \
duke@435	1721	"Whether parallel remark of survivor space" \
duke@435	1722	" enabled (effective only if CMSParallelRemarkEnabled)") \
duke@435	1723	\
duke@435	1724	product(bool, CMSPLABRecordAlways, true, \
duke@435	1725	"Whether to always record survivor space PLAB bdries" \
duke@435	1726	" (effective only if CMSParallelSurvivorRemarkEnabled)") \
duke@435	1727	\
duke@435	1728	product(bool, CMSConcurrentMTEnabled, true, \
duke@435	1729	"Whether multi-threaded concurrent work enabled (if ParNewGC)") \
duke@435	1730	\
duke@435	1731	product(bool, CMSPermGenPrecleaningEnabled, true, \
duke@435	1732	"Whether concurrent precleaning enabled in perm gen" \
duke@435	1733	" (effective only when CMSPrecleaningEnabled is true)") \
duke@435	1734	\
duke@435	1735	product(bool, CMSPrecleaningEnabled, true, \
duke@435	1736	"Whether concurrent precleaning enabled") \
duke@435	1737	\
duke@435	1738	product(uintx, CMSPrecleanIter, 3, \
duke@435	1739	"Maximum number of precleaning iteration passes") \
duke@435	1740	\
duke@435	1741	product(uintx, CMSPrecleanNumerator, 2, \
duke@435	1742	"CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \
duke@435	1743	" ratio") \
duke@435	1744	\
duke@435	1745	product(uintx, CMSPrecleanDenominator, 3, \
duke@435	1746	"CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \
duke@435	1747	" ratio") \
duke@435	1748	\
ysr@887	1749	product(bool, CMSPrecleanRefLists1, true, \
duke@435	1750	"Preclean ref lists during (initial) preclean phase") \
duke@435	1751	\
duke@435	1752	product(bool, CMSPrecleanRefLists2, false, \
duke@435	1753	"Preclean ref lists during abortable preclean phase") \
duke@435	1754	\
duke@435	1755	product(bool, CMSPrecleanSurvivors1, false, \
duke@435	1756	"Preclean survivors during (initial) preclean phase") \
duke@435	1757	\
duke@435	1758	product(bool, CMSPrecleanSurvivors2, true, \
duke@435	1759	"Preclean survivors during abortable preclean phase") \
duke@435	1760	\
duke@435	1761	product(uintx, CMSPrecleanThreshold, 1000, \
duke@435	1762	"Don't re-iterate if #dirty cards less than this") \
duke@435	1763	\
duke@435	1764	product(bool, CMSCleanOnEnter, true, \
duke@435	1765	"Clean-on-enter optimization for reducing number of dirty cards") \
duke@435	1766	\
duke@435	1767	product(uintx, CMSRemarkVerifyVariant, 1, \
duke@435	1768	"Choose variant (1,2) of verification following remark") \
duke@435	1769	\
duke@435	1770	product(uintx, CMSScheduleRemarkEdenSizeThreshold, 2*M, \
duke@435	1771	"If Eden used is below this value, don't try to schedule remark") \
duke@435	1772	\
duke@435	1773	product(uintx, CMSScheduleRemarkEdenPenetration, 50, \
duke@435	1774	"The Eden occupancy % at which to try and schedule remark pause") \
duke@435	1775	\
duke@435	1776	product(uintx, CMSScheduleRemarkSamplingRatio, 5, \
duke@435	1777	"Start sampling Eden top at least before yg occupancy reaches" \
duke@435	1778	" 1/<ratio> of the size at which we plan to schedule remark") \
duke@435	1779	\
duke@435	1780	product(uintx, CMSSamplingGrain, 16*K, \
duke@435	1781	"The minimum distance between eden samples for CMS (see above)") \
duke@435	1782	\
duke@435	1783	product(bool, CMSScavengeBeforeRemark, false, \
duke@435	1784	"Attempt scavenge before the CMS remark step") \
duke@435	1785	\
duke@435	1786	develop(bool, CMSTraceSweeper, false, \
duke@435	1787	"Trace some actions of the CMS sweeper") \
duke@435	1788	\
duke@435	1789	product(uintx, CMSWorkQueueDrainThreshold, 10, \
duke@435	1790	"Don't drain below this size per parallel worker/thief") \
duke@435	1791	\
ysr@2242	1792	manageable(intx, CMSWaitDuration, 2000, \
duke@435	1793	"Time in milliseconds that CMS thread waits for young GC") \
duke@435	1794	\
duke@435	1795	product(bool, CMSYield, true, \
duke@435	1796	"Yield between steps of concurrent mark & sweep") \
duke@435	1797	\
duke@435	1798	product(uintx, CMSBitMapYieldQuantum, 10*M, \
duke@435	1799	"Bitmap operations should process at most this many bits" \
duke@435	1800	"between yields") \
duke@435	1801	\
ysr@1580	1802	product(bool, CMSDumpAtPromotionFailure, false, \
ysr@1580	1803	"Dump useful information about the state of the CMS old " \
ysr@1580	1804	" generation upon a promotion failure.") \
ysr@1580	1805	\
ysr@1580	1806	product(bool, CMSPrintChunksInDump, false, \
ysr@1580	1807	"In a dump enabled by CMSDumpAtPromotionFailure, include " \
ysr@1580	1808	" more detailed information about the free chunks.") \
ysr@1580	1809	\
ysr@1580	1810	product(bool, CMSPrintObjectsInDump, false, \
ysr@1580	1811	"In a dump enabled by CMSDumpAtPromotionFailure, include " \
ysr@1580	1812	" more detailed information about the allocated objects.") \
ysr@1580	1813	\
duke@435	1814	diagnostic(bool, FLSVerifyAllHeapReferences, false, \
duke@435	1815	"Verify that all refs across the FLS boundary " \
duke@435	1816	" are to valid objects") \
duke@435	1817	\
duke@435	1818	diagnostic(bool, FLSVerifyLists, false, \
duke@435	1819	"Do lots of (expensive) FreeListSpace verification") \
duke@435	1820	\
duke@435	1821	diagnostic(bool, FLSVerifyIndexTable, false, \
duke@435	1822	"Do lots of (expensive) FLS index table verification") \
duke@435	1823	\
duke@435	1824	develop(bool, FLSVerifyDictionary, false, \
duke@435	1825	"Do lots of (expensive) FLS dictionary verification") \
duke@435	1826	\
duke@435	1827	develop(bool, VerifyBlockOffsetArray, false, \
duke@435	1828	"Do (expensive!) block offset array verification") \
duke@435	1829	\
brutisso@2853	1830	diagnostic(bool, BlockOffsetArrayUseUnallocatedBlock, false, \
duke@435	1831	"Maintain _unallocated_block in BlockOffsetArray" \
duke@435	1832	" (currently applicable only to CMS collector)") \
duke@435	1833	\
duke@435	1834	develop(bool, TraceCMSState, false, \
duke@435	1835	"Trace the state of the CMS collection") \
duke@435	1836	\
duke@435	1837	product(intx, RefDiscoveryPolicy, 0, \
duke@435	1838	"Whether reference-based(0) or referent-based(1)") \
duke@435	1839	\
duke@435	1840	product(bool, ParallelRefProcEnabled, false, \
duke@435	1841	"Enable parallel reference processing whenever possible") \
duke@435	1842	\
duke@435	1843	product(bool, ParallelRefProcBalancingEnabled, true, \
duke@435	1844	"Enable balancing of reference processing queues") \
duke@435	1845	\
duke@435	1846	product(intx, CMSTriggerRatio, 80, \
duke@435	1847	"Percentage of MinHeapFreeRatio in CMS generation that is " \
phh@1499	1848	"allocated before a CMS collection cycle commences") \
duke@435	1849	\
ysr@529	1850	product(intx, CMSTriggerPermRatio, 80, \
phh@1499	1851	"Percentage of MinHeapFreeRatio in the CMS perm generation that " \
phh@1499	1852	"is allocated before a CMS collection cycle commences, that " \
phh@1499	1853	"also collects the perm generation") \
ysr@529	1854	\
ysr@529	1855	product(uintx, CMSBootstrapOccupancy, 50, \
duke@435	1856	"Percentage CMS generation occupancy at which to " \
phh@1499	1857	"initiate CMS collection for bootstrapping collection stats") \
duke@435	1858	\
duke@435	1859	product(intx, CMSInitiatingOccupancyFraction, -1, \
duke@435	1860	"Percentage CMS generation occupancy to start a CMS collection " \
phh@1499	1861	"cycle. A negative value means that CMSTriggerRatio is used") \
ysr@529	1862	\
tonyp@1718	1863	product(uintx, InitiatingHeapOccupancyPercent, 45, \
tonyp@1718	1864	"Percentage of the (entire) heap occupancy to start a " \
tonyp@1718	1865	"concurrent GC cycle. It us used by GCs that trigger a " \
tonyp@1718	1866	"concurrent GC cycle based on the occupancy of the entire heap, " \
tonyp@1718	1867	"not just one of the generations (e.g., G1). A value of 0 " \
tonyp@1718	1868	"denotes 'do constant GC cycles'.") \
tonyp@1718	1869	\
ysr@529	1870	product(intx, CMSInitiatingPermOccupancyFraction, -1, \
phh@1499	1871	"Percentage CMS perm generation occupancy to start a " \
phh@1499	1872	"CMScollection cycle. A negative value means that " \
phh@1499	1873	"CMSTriggerPermRatio is used") \
duke@435	1874	\
duke@435	1875	product(bool, UseCMSInitiatingOccupancyOnly, false, \
duke@435	1876	"Only use occupancy as a crierion for starting a CMS collection") \
duke@435	1877	\
ysr@529	1878	product(intx, CMSIsTooFullPercentage, 98, \
phh@1499	1879	"An absolute ceiling above which CMS will always consider the " \
phh@1499	1880	"perm gen ripe for collection") \
ysr@529	1881	\
duke@435	1882	develop(bool, CMSTestInFreeList, false, \
duke@435	1883	"Check if the coalesced range is already in the " \
phh@1499	1884	"free lists as claimed") \
duke@435	1885	\
duke@435	1886	notproduct(bool, CMSVerifyReturnedBytes, false, \
duke@435	1887	"Check that all the garbage collected was returned to the " \
duke@435	1888	"free lists.") \
duke@435	1889	\
duke@435	1890	notproduct(bool, ScavengeALot, false, \
duke@435	1891	"Force scavenge at every Nth exit from the runtime system " \
duke@435	1892	"(N=ScavengeALotInterval)") \
duke@435	1893	\
duke@435	1894	develop(bool, FullGCALot, false, \
duke@435	1895	"Force full gc at every Nth exit from the runtime system " \
duke@435	1896	"(N=FullGCALotInterval)") \
duke@435	1897	\
duke@435	1898	notproduct(bool, GCALotAtAllSafepoints, false, \
duke@435	1899	"Enforce ScavengeALot/GCALot at all potential safepoints") \
duke@435	1900	\
ysr@1580	1901	product(bool, PrintPromotionFailure, false, \
ysr@1580	1902	"Print additional diagnostic information following " \
ysr@1580	1903	" promotion failure") \
ysr@1580	1904	\
duke@435	1905	notproduct(bool, PromotionFailureALot, false, \
duke@435	1906	"Use promotion failure handling on every youngest generation " \
duke@435	1907	"collection") \
duke@435	1908	\
duke@435	1909	develop(uintx, PromotionFailureALotCount, 1000, \
duke@435	1910	"Number of promotion failures occurring at ParGCAllocBuffer" \
duke@435	1911	"refill attempts (ParNew) or promotion attempts " \
duke@435	1912	"(other young collectors) ") \
duke@435	1913	\
duke@435	1914	develop(uintx, PromotionFailureALotInterval, 5, \
duke@435	1915	"Total collections between promotion failures alot") \
duke@435	1916	\
ysr@2192	1917	experimental(intx, WorkStealingSleepMillis, 1, \
duke@435	1918	"Sleep time when sleep is used for yields") \
duke@435	1919	\
brutisso@2712	1920	experimental(uintx, WorkStealingYieldsBeforeSleep, 5000, \
duke@435	1921	"Number of yields before a sleep is done during workstealing") \
duke@435	1922	\
ysr@2192	1923	experimental(uintx, WorkStealingHardSpins, 4096, \
jmasa@981	1924	"Number of iterations in a spin loop between checks on " \
jmasa@981	1925	"time out of hard spin") \
jmasa@981	1926	\
ysr@2192	1927	experimental(uintx, WorkStealingSpinToYieldRatio, 10, \
jmasa@981	1928	"Ratio of hard spins to calls to yield") \
jmasa@981	1929	\
ysr@969	1930	product(uintx, PreserveMarkStackSize, 1024, \
phh@1499	1931	"Size for stack used in promotion failure handling") \
duke@435	1932	\
jcoomes@1746	1933	develop(uintx, ObjArrayMarkingStride, 512, \
jcoomes@1746	1934	"Number of ObjArray elements to push onto the marking stack" \
jcoomes@1746	1935	"before pushing a continuation entry") \
jcoomes@1746	1936	\
duke@435	1937	product_pd(bool, UseTLAB, "Use thread-local object allocation") \
duke@435	1938	\
duke@435	1939	product_pd(bool, ResizeTLAB, \
duke@435	1940	"Dynamically resize tlab size for threads") \
duke@435	1941	\
duke@435	1942	product(bool, ZeroTLAB, false, \
duke@435	1943	"Zero out the newly created TLAB") \
duke@435	1944	\
ysr@777	1945	product(bool, FastTLABRefill, true, \
ysr@777	1946	"Use fast TLAB refill code") \
ysr@777	1947	\
duke@435	1948	product(bool, PrintTLAB, false, \
duke@435	1949	"Print various TLAB related information") \
duke@435	1950	\
duke@435	1951	product(bool, TLABStats, true, \
duke@435	1952	"Print various TLAB related information") \
duke@435	1953	\
ysr@1376	1954	product(bool, PrintRevisitStats, false, \
ysr@1376	1955	"Print revisit (klass and MDO) stack related information") \
ysr@1376	1956	\
bobv@2508	1957	EMBEDDED_ONLY(product(bool, LowMemoryProtection, true, \
bobv@2508	1958	"Enable LowMemoryProtection")) \
bobv@2508	1959	\
duke@435	1960	product_pd(bool, NeverActAsServerClassMachine, \
duke@435	1961	"Never act like a server-class machine") \
duke@435	1962	\
duke@435	1963	product(bool, AlwaysActAsServerClassMachine, false, \
duke@435	1964	"Always act like a server-class machine") \
duke@435	1965	\
phh@1499	1966	product_pd(uint64_t, MaxRAM, \
phh@1499	1967	"Real memory size (in bytes) used to set maximum heap size") \
phh@1499	1968	\
phh@1499	1969	product(uintx, ErgoHeapSizeLimit, 0, \
phh@1499	1970	"Maximum ergonomically set heap size (in bytes); zero means use " \
phh@1499	1971	"MaxRAM / MaxRAMFraction") \
phh@1499	1972	\
phh@1499	1973	product(uintx, MaxRAMFraction, 4, \
phh@1499	1974	"Maximum fraction (1/n) of real memory used for maximum heap " \
phh@1499	1975	"size") \
duke@435	1976	\
duke@435	1977	product(uintx, DefaultMaxRAMFraction, 4, \
phh@1499	1978	"Maximum fraction (1/n) of real memory used for maximum heap " \
phh@1499	1979	"size; deprecated: to be renamed to MaxRAMFraction") \
phh@1499	1980	\
phh@1499	1981	product(uintx, MinRAMFraction, 2, \
phh@1499	1982	"Minimum fraction (1/n) of real memory used for maxmimum heap " \
phh@1499	1983	"size on systems with small physical memory size") \
phh@1499	1984	\
phh@1499	1985	product(uintx, InitialRAMFraction, 64, \
phh@1499	1986	"Fraction (1/n) of real memory used for initial heap size") \
duke@435	1987	\
duke@435	1988	product(bool, UseAutoGCSelectPolicy, false, \
duke@435	1989	"Use automatic collection selection policy") \
duke@435	1990	\
duke@435	1991	product(uintx, AutoGCSelectPauseMillis, 5000, \
duke@435	1992	"Automatic GC selection pause threshhold in ms") \
duke@435	1993	\
duke@435	1994	product(bool, UseAdaptiveSizePolicy, true, \
duke@435	1995	"Use adaptive generation sizing policies") \
duke@435	1996	\
duke@435	1997	product(bool, UsePSAdaptiveSurvivorSizePolicy, true, \
duke@435	1998	"Use adaptive survivor sizing policies") \
duke@435	1999	\
duke@435	2000	product(bool, UseAdaptiveGenerationSizePolicyAtMinorCollection, true, \
duke@435	2001	"Use adaptive young-old sizing policies at minor collections") \
duke@435	2002	\
duke@435	2003	product(bool, UseAdaptiveGenerationSizePolicyAtMajorCollection, true, \
duke@435	2004	"Use adaptive young-old sizing policies at major collections") \
duke@435	2005	\
duke@435	2006	product(bool, UseAdaptiveSizePolicyWithSystemGC, false, \
duke@435	2007	"Use statistics from System.GC for adaptive size policy") \
duke@435	2008	\
duke@435	2009	product(bool, UseAdaptiveGCBoundary, false, \
duke@435	2010	"Allow young-old boundary to move") \
duke@435	2011	\
duke@435	2012	develop(bool, TraceAdaptiveGCBoundary, false, \
duke@435	2013	"Trace young-old boundary moves") \
duke@435	2014	\
duke@435	2015	develop(intx, PSAdaptiveSizePolicyResizeVirtualSpaceAlot, -1, \
duke@435	2016	"Resize the virtual spaces of the young or old generations") \
duke@435	2017	\
duke@435	2018	product(uintx, AdaptiveSizeThroughPutPolicy, 0, \
duke@435	2019	"Policy for changeing generation size for throughput goals") \
duke@435	2020	\
duke@435	2021	product(uintx, AdaptiveSizePausePolicy, 0, \
duke@435	2022	"Policy for changing generation size for pause goals") \
duke@435	2023	\
duke@435	2024	develop(bool, PSAdjustTenuredGenForMinorPause, false, \
duke@435	2025	"Adjust tenured generation to achive a minor pause goal") \
duke@435	2026	\
duke@435	2027	develop(bool, PSAdjustYoungGenForMajorPause, false, \
duke@435	2028	"Adjust young generation to achive a major pause goal") \
duke@435	2029	\
duke@435	2030	product(uintx, AdaptiveSizePolicyInitializingSteps, 20, \
duke@435	2031	"Number of steps where heuristics is used before data is used") \
duke@435	2032	\
duke@435	2033	develop(uintx, AdaptiveSizePolicyReadyThreshold, 5, \
duke@435	2034	"Number of collections before the adaptive sizing is started") \
duke@435	2035	\
duke@435	2036	product(uintx, AdaptiveSizePolicyOutputInterval, 0, \
phh@1499	2037	"Collecton interval for printing information; zero => never") \
duke@435	2038	\
duke@435	2039	product(bool, UseAdaptiveSizePolicyFootprintGoal, true, \
duke@435	2040	"Use adaptive minimum footprint as a goal") \
duke@435	2041	\
duke@435	2042	product(uintx, AdaptiveSizePolicyWeight, 10, \
duke@435	2043	"Weight given to exponential resizing, between 0 and 100") \
duke@435	2044	\
duke@435	2045	product(uintx, AdaptiveTimeWeight, 25, \
duke@435	2046	"Weight given to time in adaptive policy, between 0 and 100") \
duke@435	2047	\
duke@435	2048	product(uintx, PausePadding, 1, \
duke@435	2049	"How much buffer to keep for pause time") \
duke@435	2050	\
duke@435	2051	product(uintx, PromotedPadding, 3, \
duke@435	2052	"How much buffer to keep for promotion failure") \
duke@435	2053	\
duke@435	2054	product(uintx, SurvivorPadding, 3, \
duke@435	2055	"How much buffer to keep for survivor overflow") \
duke@435	2056	\
duke@435	2057	product(uintx, AdaptivePermSizeWeight, 20, \
duke@435	2058	"Weight for perm gen exponential resizing, between 0 and 100") \
duke@435	2059	\
duke@435	2060	product(uintx, PermGenPadding, 3, \
duke@435	2061	"How much buffer to keep for perm gen sizing") \
duke@435	2062	\
duke@435	2063	product(uintx, ThresholdTolerance, 10, \
duke@435	2064	"Allowed collection cost difference between generations") \
duke@435	2065	\
duke@435	2066	product(uintx, AdaptiveSizePolicyCollectionCostMargin, 50, \
phh@1499	2067	"If collection costs are within margin, reduce both by full " \
phh@1499	2068	"delta") \
duke@435	2069	\
duke@435	2070	product(uintx, YoungGenerationSizeIncrement, 20, \
duke@435	2071	"Adaptive size percentage change in young generation") \
duke@435	2072	\
duke@435	2073	product(uintx, YoungGenerationSizeSupplement, 80, \
duke@435	2074	"Supplement to YoungedGenerationSizeIncrement used at startup") \
duke@435	2075	\
duke@435	2076	product(uintx, YoungGenerationSizeSupplementDecay, 8, \
duke@435	2077	"Decay factor to YoungedGenerationSizeSupplement") \
duke@435	2078	\
duke@435	2079	product(uintx, TenuredGenerationSizeIncrement, 20, \
duke@435	2080	"Adaptive size percentage change in tenured generation") \
duke@435	2081	\
duke@435	2082	product(uintx, TenuredGenerationSizeSupplement, 80, \
duke@435	2083	"Supplement to TenuredGenerationSizeIncrement used at startup") \
duke@435	2084	\
duke@435	2085	product(uintx, TenuredGenerationSizeSupplementDecay, 2, \
duke@435	2086	"Decay factor to TenuredGenerationSizeIncrement") \
duke@435	2087	\
iveresov@2138	2088	product(uintx, MaxGCPauseMillis, max_uintx, \
johnc@1186	2089	"Adaptive size policy maximum GC pause time goal in msec, " \
johnc@1186	2090	"or (G1 Only) the max. GC time per MMU time slice") \
johnc@1186	2091	\
tonyp@1965	2092	product(uintx, GCPauseIntervalMillis, 0, \
johnc@1186	2093	"Time slice for MMU specification") \
duke@435	2094	\
duke@435	2095	product(uintx, MaxGCMinorPauseMillis, max_uintx, \
duke@435	2096	"Adaptive size policy maximum GC minor pause time goal in msec") \
duke@435	2097	\
duke@435	2098	product(uintx, GCTimeRatio, 99, \
duke@435	2099	"Adaptive size policy application time to GC time ratio") \
duke@435	2100	\
duke@435	2101	product(uintx, AdaptiveSizeDecrementScaleFactor, 4, \
duke@435	2102	"Adaptive size scale down factor for shrinking") \
duke@435	2103	\
duke@435	2104	product(bool, UseAdaptiveSizeDecayMajorGCCost, true, \
duke@435	2105	"Adaptive size decays the major cost for long major intervals") \
duke@435	2106	\
duke@435	2107	product(uintx, AdaptiveSizeMajorGCDecayTimeScale, 10, \
duke@435	2108	"Time scale over which major costs decay") \
duke@435	2109	\
duke@435	2110	product(uintx, MinSurvivorRatio, 3, \
duke@435	2111	"Minimum ratio of young generation/survivor space size") \
duke@435	2112	\
duke@435	2113	product(uintx, InitialSurvivorRatio, 8, \
duke@435	2114	"Initial ratio of eden/survivor space size") \
duke@435	2115	\
duke@435	2116	product(uintx, BaseFootPrintEstimate, 256*M, \
duke@435	2117	"Estimate of footprint other than Java Heap") \
duke@435	2118	\
duke@435	2119	product(bool, UseGCOverheadLimit, true, \
duke@435	2120	"Use policy to limit of proportion of time spent in GC " \
duke@435	2121	"before an OutOfMemory error is thrown") \
duke@435	2122	\
duke@435	2123	product(uintx, GCTimeLimit, 98, \
duke@435	2124	"Limit of proportion of time spent in GC before an OutOfMemory" \
duke@435	2125	"error is thrown (used with GCHeapFreeLimit)") \
duke@435	2126	\
duke@435	2127	product(uintx, GCHeapFreeLimit, 2, \
duke@435	2128	"Minimum percentage of free space after a full GC before an " \
duke@435	2129	"OutOfMemoryError is thrown (used with GCTimeLimit)") \
duke@435	2130	\
duke@435	2131	develop(uintx, AdaptiveSizePolicyGCTimeLimitThreshold, 5, \
duke@435	2132	"Number of consecutive collections before gc time limit fires") \
duke@435	2133	\
duke@435	2134	product(bool, PrintAdaptiveSizePolicy, false, \
duke@435	2135	"Print information about AdaptiveSizePolicy") \
duke@435	2136	\
duke@435	2137	product(intx, PrefetchCopyIntervalInBytes, -1, \
duke@435	2138	"How far ahead to prefetch destination area (<= 0 means off)") \
duke@435	2139	\
duke@435	2140	product(intx, PrefetchScanIntervalInBytes, -1, \
duke@435	2141	"How far ahead to prefetch scan area (<= 0 means off)") \
duke@435	2142	\
duke@435	2143	product(intx, PrefetchFieldsAhead, -1, \
duke@435	2144	"How many fields ahead to prefetch in oop scan (<= 0 means off)") \
duke@435	2145	\
duke@435	2146	develop(bool, UsePrefetchQueue, true, \
duke@435	2147	"Use the prefetch queue during PS promotion") \
duke@435	2148	\
duke@435	2149	diagnostic(bool, VerifyBeforeExit, trueInDebug, \
duke@435	2150	"Verify system before exiting") \
duke@435	2151	\
duke@435	2152	diagnostic(bool, VerifyBeforeGC, false, \
duke@435	2153	"Verify memory system before GC") \
duke@435	2154	\
duke@435	2155	diagnostic(bool, VerifyAfterGC, false, \
duke@435	2156	"Verify memory system after GC") \
duke@435	2157	\
duke@435	2158	diagnostic(bool, VerifyDuringGC, false, \
duke@435	2159	"Verify memory system during GC (between phases)") \
duke@435	2160	\
tonyp@825	2161	diagnostic(bool, GCParallelVerificationEnabled, true, \
tonyp@825	2162	"Enable parallel memory system verification") \
tonyp@825	2163	\
ysr@1601	2164	diagnostic(bool, DeferInitialCardMark, false, \
ysr@1601	2165	"When +ReduceInitialCardMarks, explicitly defer any that " \
ysr@1601	2166	"may arise from new_pre_store_barrier") \
ysr@1601	2167	\
duke@435	2168	diagnostic(bool, VerifyRememberedSets, false, \
duke@435	2169	"Verify GC remembered sets") \
duke@435	2170	\
duke@435	2171	diagnostic(bool, VerifyObjectStartArray, true, \
duke@435	2172	"Verify GC object start array if verify before/after") \
duke@435	2173	\
duke@435	2174	product(bool, DisableExplicitGC, false, \
duke@435	2175	"Tells whether calling System.gc() does a full GC") \
duke@435	2176	\
duke@435	2177	notproduct(bool, CheckMemoryInitialization, false, \
duke@435	2178	"Checks memory initialization") \
duke@435	2179	\
duke@435	2180	product(bool, CollectGen0First, false, \
duke@435	2181	"Collect youngest generation before each full GC") \
duke@435	2182	\
duke@435	2183	diagnostic(bool, BindCMSThreadToCPU, false, \
duke@435	2184	"Bind CMS Thread to CPU if possible") \
duke@435	2185	\
duke@435	2186	diagnostic(uintx, CPUForCMSThread, 0, \
duke@435	2187	"When BindCMSThreadToCPU is true, the CPU to bind CMS thread to") \
duke@435	2188	\
duke@435	2189	product(bool, BindGCTaskThreadsToCPUs, false, \
duke@435	2190	"Bind GCTaskThreads to CPUs if possible") \
duke@435	2191	\
duke@435	2192	product(bool, UseGCTaskAffinity, false, \
duke@435	2193	"Use worker affinity when asking for GCTasks") \
duke@435	2194	\
duke@435	2195	product(uintx, ProcessDistributionStride, 4, \
duke@435	2196	"Stride through processors when distributing processes") \
duke@435	2197	\
duke@435	2198	product(uintx, CMSCoordinatorYieldSleepCount, 10, \
duke@435	2199	"number of times the coordinator GC thread will sleep while " \
duke@435	2200	"yielding before giving up and resuming GC") \
duke@435	2201	\
duke@435	2202	product(uintx, CMSYieldSleepCount, 0, \
duke@435	2203	"number of times a GC thread (minus the coordinator) " \
duke@435	2204	"will sleep while yielding before giving up and resuming GC") \
duke@435	2205	\
duke@435	2206	/* gc tracing */ \
duke@435	2207	manageable(bool, PrintGC, false, \
duke@435	2208	"Print message at garbage collect") \
duke@435	2209	\
duke@435	2210	manageable(bool, PrintGCDetails, false, \
duke@435	2211	"Print more details at garbage collect") \
duke@435	2212	\
duke@435	2213	manageable(bool, PrintGCDateStamps, false, \
duke@435	2214	"Print date stamps at garbage collect") \
duke@435	2215	\
duke@435	2216	manageable(bool, PrintGCTimeStamps, false, \
duke@435	2217	"Print timestamps at garbage collect") \
duke@435	2218	\
duke@435	2219	product(bool, PrintGCTaskTimeStamps, false, \
duke@435	2220	"Print timestamps for individual gc worker thread tasks") \
duke@435	2221	\
duke@435	2222	develop(intx, ConcGCYieldTimeout, 0, \
duke@435	2223	"If non-zero, assert that GC threads yield within this # of ms.") \
duke@435	2224	\
duke@435	2225	notproduct(bool, TraceMarkSweep, false, \
duke@435	2226	"Trace mark sweep") \
duke@435	2227	\
duke@435	2228	product(bool, PrintReferenceGC, false, \
duke@435	2229	"Print times spent handling reference objects during GC " \
duke@435	2230	" (enabled only when PrintGCDetails)") \
duke@435	2231	\
duke@435	2232	develop(bool, TraceReferenceGC, false, \
duke@435	2233	"Trace handling of soft/weak/final/phantom references") \
duke@435	2234	\
duke@435	2235	develop(bool, TraceFinalizerRegistration, false, \
duke@435	2236	"Trace registration of final references") \
duke@435	2237	\
duke@435	2238	notproduct(bool, TraceScavenge, false, \
duke@435	2239	"Trace scavenge") \
duke@435	2240	\
duke@435	2241	product_rw(bool, TraceClassLoading, false, \
duke@435	2242	"Trace all classes loaded") \
duke@435	2243	\
duke@435	2244	product(bool, TraceClassLoadingPreorder, false, \
duke@435	2245	"Trace all classes loaded in order referenced (not loaded)") \
duke@435	2246	\
duke@435	2247	product_rw(bool, TraceClassUnloading, false, \
duke@435	2248	"Trace unloading of classes") \
duke@435	2249	\
duke@435	2250	product_rw(bool, TraceLoaderConstraints, false, \
duke@435	2251	"Trace loader constraints") \
duke@435	2252	\
duke@435	2253	product(bool, TraceGen0Time, false, \
duke@435	2254	"Trace accumulated time for Gen 0 collection") \
duke@435	2255	\
duke@435	2256	product(bool, TraceGen1Time, false, \
duke@435	2257	"Trace accumulated time for Gen 1 collection") \
duke@435	2258	\
duke@435	2259	product(bool, PrintTenuringDistribution, false, \
duke@435	2260	"Print tenuring age information") \
duke@435	2261	\
duke@435	2262	product_rw(bool, PrintHeapAtGC, false, \
duke@435	2263	"Print heap layout before and after each GC") \
duke@435	2264	\
tonyp@1273	2265	product_rw(bool, PrintHeapAtGCExtended, false, \
tonyp@1273	2266	"Prints extended information about the layout of the heap " \
tonyp@1273	2267	"when -XX:+PrintHeapAtGC is set") \
tonyp@1273	2268	\
duke@435	2269	product(bool, PrintHeapAtSIGBREAK, true, \
duke@435	2270	"Print heap layout in response to SIGBREAK") \
duke@435	2271	\
ysr@1050	2272	manageable(bool, PrintClassHistogramBeforeFullGC, false, \
ysr@1050	2273	"Print a class histogram before any major stop-world GC") \
ysr@1050	2274	\
ysr@1050	2275	manageable(bool, PrintClassHistogramAfterFullGC, false, \
ysr@1050	2276	"Print a class histogram after any major stop-world GC") \
ysr@1050	2277	\
duke@435	2278	manageable(bool, PrintClassHistogram, false, \
duke@435	2279	"Print a histogram of class instances") \
duke@435	2280	\
duke@435	2281	develop(bool, TraceWorkGang, false, \
duke@435	2282	"Trace activities of work gangs") \
duke@435	2283	\
duke@435	2284	product(bool, TraceParallelOldGCTasks, false, \
duke@435	2285	"Trace multithreaded GC activity") \
duke@435	2286	\
duke@435	2287	develop(bool, TraceBlockOffsetTable, false, \
duke@435	2288	"Print BlockOffsetTable maps") \
duke@435	2289	\
duke@435	2290	develop(bool, TraceCardTableModRefBS, false, \
duke@435	2291	"Print CardTableModRefBS maps") \
duke@435	2292	\
duke@435	2293	develop(bool, TraceGCTaskManager, false, \
duke@435	2294	"Trace actions of the GC task manager") \
duke@435	2295	\
duke@435	2296	develop(bool, TraceGCTaskQueue, false, \
duke@435	2297	"Trace actions of the GC task queues") \
duke@435	2298	\
duke@435	2299	develop(bool, TraceGCTaskThread, false, \
duke@435	2300	"Trace actions of the GC task threads") \
duke@435	2301	\
duke@435	2302	product(bool, PrintParallelOldGCPhaseTimes, false, \
duke@435	2303	"Print the time taken by each parallel old gc phase." \
duke@435	2304	"PrintGCDetails must also be enabled.") \
duke@435	2305	\
duke@435	2306	develop(bool, TraceParallelOldGCMarkingPhase, false, \
duke@435	2307	"Trace parallel old gc marking phase") \
duke@435	2308	\
duke@435	2309	develop(bool, TraceParallelOldGCSummaryPhase, false, \
duke@435	2310	"Trace parallel old gc summary phase") \
duke@435	2311	\
duke@435	2312	develop(bool, TraceParallelOldGCCompactionPhase, false, \
duke@435	2313	"Trace parallel old gc compaction phase") \
duke@435	2314	\
duke@435	2315	develop(bool, TraceParallelOldGCDensePrefix, false, \
duke@435	2316	"Trace parallel old gc dense prefix computation") \
duke@435	2317	\
duke@435	2318	develop(bool, IgnoreLibthreadGPFault, false, \
duke@435	2319	"Suppress workaround for libthread GP fault") \
duke@435	2320	\
apetrusenko@574	2321	product(bool, PrintJNIGCStalls, false, \
apetrusenko@574	2322	"Print diagnostic message when GC is stalled" \
apetrusenko@574	2323	"by JNI critical section") \
apetrusenko@574	2324	\
duke@435	2325	/* JVMTI heap profiling */ \
duke@435	2326	\
duke@435	2327	diagnostic(bool, TraceJVMTIObjectTagging, false, \
duke@435	2328	"Trace JVMTI object tagging calls") \
duke@435	2329	\
duke@435	2330	diagnostic(bool, VerifyBeforeIteration, false, \
duke@435	2331	"Verify memory system before JVMTI iteration") \
duke@435	2332	\
duke@435	2333	/* compiler interface */ \
duke@435	2334	\
duke@435	2335	develop(bool, CIPrintCompilerName, false, \
duke@435	2336	"when CIPrint is active, print the name of the active compiler") \
duke@435	2337	\
duke@435	2338	develop(bool, CIPrintCompileQueue, false, \
duke@435	2339	"display the contents of the compile queue whenever a " \
duke@435	2340	"compilation is enqueued") \
duke@435	2341	\
duke@435	2342	develop(bool, CIPrintRequests, false, \
duke@435	2343	"display every request for compilation") \
duke@435	2344	\
duke@435	2345	product(bool, CITime, false, \
duke@435	2346	"collect timing information for compilation") \
duke@435	2347	\
duke@435	2348	develop(bool, CITimeEach, false, \
duke@435	2349	"display timing information after each successful compilation") \
duke@435	2350	\
duke@435	2351	develop(bool, CICountOSR, true, \
duke@435	2352	"use a separate counter when assigning ids to osr compilations") \
duke@435	2353	\
duke@435	2354	develop(bool, CICompileNatives, true, \
duke@435	2355	"compile native methods if supported by the compiler") \
duke@435	2356	\
duke@435	2357	develop_pd(bool, CICompileOSR, \
duke@435	2358	"compile on stack replacement methods if supported by the " \
duke@435	2359	"compiler") \
duke@435	2360	\
duke@435	2361	develop(bool, CIPrintMethodCodes, false, \
duke@435	2362	"print method bytecodes of the compiled code") \
duke@435	2363	\
duke@435	2364	develop(bool, CIPrintTypeFlow, false, \
duke@435	2365	"print the results of ciTypeFlow analysis") \
duke@435	2366	\
duke@435	2367	develop(bool, CITraceTypeFlow, false, \
duke@435	2368	"detailed per-bytecode tracing of ciTypeFlow analysis") \
duke@435	2369	\
duke@435	2370	develop(intx, CICloneLoopTestLimit, 100, \
duke@435	2371	"size limit for blocks heuristically cloned in ciTypeFlow") \
duke@435	2372	\
never@2685	2373	develop(intx, OSROnlyBCI, -1, \
never@2685	2374	"OSR only at this bci. Negative values mean exclude that bci") \
never@2685	2375	\
duke@435	2376	/* temp diagnostics */ \
duke@435	2377	\
duke@435	2378	diagnostic(bool, TraceRedundantCompiles, false, \
duke@435	2379	"Have compile broker print when a request already in the queue is"\
duke@435	2380	" requested again") \
duke@435	2381	\
duke@435	2382	diagnostic(bool, InitialCompileFast, false, \
duke@435	2383	"Initial compile at CompLevel_fast_compile") \
duke@435	2384	\
duke@435	2385	diagnostic(bool, InitialCompileReallyFast, false, \
duke@435	2386	"Initial compile at CompLevel_really_fast_compile (no profile)") \
duke@435	2387	\
duke@435	2388	diagnostic(bool, FullProfileOnReInterpret, true, \
duke@435	2389	"On re-interpret unc-trap compile next at CompLevel_fast_compile")\
duke@435	2390	\
duke@435	2391	/* compiler */ \
duke@435	2392	\
duke@435	2393	product(intx, CICompilerCount, CI_COMPILER_COUNT, \
duke@435	2394	"Number of compiler threads to run") \
duke@435	2395	\
duke@435	2396	product(intx, CompilationPolicyChoice, 0, \
duke@435	2397	"which compilation policy (0/1)") \
duke@435	2398	\
duke@435	2399	develop(bool, UseStackBanging, true, \
duke@435	2400	"use stack banging for stack overflow checks (required for " \
duke@435	2401	"proper StackOverflow handling; disable only to measure cost " \
duke@435	2402	"of stackbanging)") \
duke@435	2403	\
duke@435	2404	develop(bool, Use24BitFPMode, true, \
duke@435	2405	"Set 24-bit FPU mode on a per-compile basis ") \
duke@435	2406	\
duke@435	2407	develop(bool, Use24BitFP, true, \
duke@435	2408	"use FP instructions that produce 24-bit precise results") \
duke@435	2409	\
duke@435	2410	develop(bool, UseStrictFP, true, \
duke@435	2411	"use strict fp if modifier strictfp is set") \
duke@435	2412	\
duke@435	2413	develop(bool, GenerateSynchronizationCode, true, \
duke@435	2414	"generate locking/unlocking code for synchronized methods and " \
duke@435	2415	"monitors") \
duke@435	2416	\
duke@435	2417	develop(bool, GenerateCompilerNullChecks, true, \
duke@435	2418	"Generate explicit null checks for loads/stores/calls") \
duke@435	2419	\
duke@435	2420	develop(bool, GenerateRangeChecks, true, \
duke@435	2421	"Generate range checks for array accesses") \
duke@435	2422	\
duke@435	2423	develop_pd(bool, ImplicitNullChecks, \
duke@435	2424	"generate code for implicit null checks") \
duke@435	2425	\
duke@435	2426	product(bool, PrintSafepointStatistics, false, \
duke@435	2427	"print statistics about safepoint synchronization") \
duke@435	2428	\
duke@435	2429	product(intx, PrintSafepointStatisticsCount, 300, \
duke@435	2430	"total number of safepoint statistics collected " \
duke@435	2431	"before printing them out") \
duke@435	2432	\
duke@435	2433	product(intx, PrintSafepointStatisticsTimeout, -1, \
duke@435	2434	"print safepoint statistics only when safepoint takes" \
duke@435	2435	" more than PrintSafepointSatisticsTimeout in millis") \
duke@435	2436	\
xlu@1756	2437	product(bool, TraceSafepointCleanupTime, false, \
xlu@1756	2438	"print the break down of clean up tasks performed during" \
xlu@1756	2439	" safepoint") \
xlu@1756	2440	\
duke@435	2441	develop(bool, InlineAccessors, true, \
duke@435	2442	"inline accessor methods (get/set)") \
duke@435	2443	\
duke@435	2444	product(bool, Inline, true, \
duke@435	2445	"enable inlining") \
duke@435	2446	\
duke@435	2447	product(bool, ClipInlining, true, \
duke@435	2448	"clip inlining if aggregate method exceeds DesiredMethodLimit") \
duke@435	2449	\
duke@435	2450	develop(bool, UseCHA, true, \
duke@435	2451	"enable CHA") \
duke@435	2452	\
duke@435	2453	product(bool, UseTypeProfile, true, \
duke@435	2454	"Check interpreter profile for historically monomorphic calls") \
duke@435	2455	\
duke@435	2456	product(intx, TypeProfileMajorReceiverPercent, 90, \
duke@435	2457	"% of major receiver type to all profiled receivers") \
duke@435	2458	\
duke@435	2459	notproduct(bool, TimeCompiler, false, \
duke@435	2460	"time the compiler") \
duke@435	2461	\
duke@435	2462	notproduct(bool, TimeCompiler2, false, \
duke@435	2463	"detailed time the compiler (requires +TimeCompiler)") \
duke@435	2464	\
duke@435	2465	diagnostic(bool, PrintInlining, false, \
duke@435	2466	"prints inlining optimizations") \
duke@435	2467	\
duke@435	2468	diagnostic(bool, PrintIntrinsics, false, \
duke@435	2469	"prints attempted and successful inlining of intrinsics") \
duke@435	2470	\
twisti@1210	2471	product(bool, UseCountLeadingZerosInstruction, false, \
twisti@1210	2472	"Use count leading zeros instruction") \
twisti@1210	2473	\
twisti@1078	2474	product(bool, UsePopCountInstruction, false, \
twisti@1078	2475	"Use population count instruction") \
twisti@1078	2476	\
duke@435	2477	diagnostic(ccstrlist, DisableIntrinsic, "", \
duke@435	2478	"do not expand intrinsics whose (internal) names appear here") \
duke@435	2479	\
duke@435	2480	develop(bool, StressReflectiveCode, false, \
duke@435	2481	"Use inexact types at allocations, etc., to test reflection") \
duke@435	2482	\
duke@435	2483	develop(bool, EagerInitialization, false, \
duke@435	2484	"Eagerly initialize classes if possible") \
duke@435	2485	\
duke@435	2486	develop(bool, TraceMethodReplacement, false, \
duke@435	2487	"Print when methods are replaced do to recompilation") \
duke@435	2488	\
duke@435	2489	develop(bool, PrintMethodFlushing, false, \
duke@435	2490	"print the nmethods being flushed") \
duke@435	2491	\
duke@435	2492	notproduct(bool, LogMultipleMutexLocking, false, \
duke@435	2493	"log locking and unlocking of mutexes (only if multiple locks " \
duke@435	2494	"are held)") \
duke@435	2495	\
duke@435	2496	develop(bool, UseRelocIndex, false, \
duke@435	2497	"use an index to speed random access to relocations") \
duke@435	2498	\
duke@435	2499	develop(bool, StressCodeBuffers, false, \
duke@435	2500	"Exercise code buffer expansion and other rare state changes") \
duke@435	2501	\
duke@435	2502	diagnostic(bool, DebugNonSafepoints, trueInDebug, \
duke@435	2503	"Generate extra debugging info for non-safepoints in nmethods") \
duke@435	2504	\
duke@435	2505	diagnostic(bool, DebugInlinedCalls, true, \
duke@435	2506	"If false, restricts profiled locations to the root method only") \
duke@435	2507	\
duke@435	2508	product(bool, PrintVMOptions, trueInDebug, \
kvn@1585	2509	"Print flags that appeared on the command line") \
duke@435	2510	\
kvn@999	2511	product(bool, IgnoreUnrecognizedVMOptions, false, \
kvn@999	2512	"Ignore unrecognized VM options") \
kvn@999	2513	\
kvn@1585	2514	product(bool, PrintCommandLineFlags, false, \
kvn@1585	2515	"Print flags specified on command line or set by ergonomics") \
kvn@1585	2516	\
kvn@1585	2517	product(bool, PrintFlagsInitial, false, \
kvn@1585	2518	"Print all VM flags before argument processing and exit VM") \
kvn@1585	2519	\
kvn@1585	2520	product(bool, PrintFlagsFinal, false, \
kvn@1585	2521	"Print all VM flags after argument and ergonomic processing") \
kvn@1585	2522	\
ikrylov@2123	2523	notproduct(bool, PrintFlagsWithComments, false, \
ikrylov@2123	2524	"Print all VM flags with default values and descriptions and exit")\
ikrylov@2123	2525	\
duke@435	2526	diagnostic(bool, SerializeVMOutput, true, \
duke@435	2527	"Use a mutex to serialize output to tty and hotspot.log") \
duke@435	2528	\
duke@435	2529	diagnostic(bool, DisplayVMOutput, true, \
duke@435	2530	"Display all VM output on the tty, independently of LogVMOutput") \
duke@435	2531	\
duke@435	2532	diagnostic(bool, LogVMOutput, trueInDebug, \
duke@435	2533	"Save VM output to hotspot.log, or to LogFile") \
duke@435	2534	\
duke@435	2535	diagnostic(ccstr, LogFile, NULL, \
duke@435	2536	"If LogVMOutput is on, save VM output to this file [hotspot.log]") \
duke@435	2537	\
duke@435	2538	product(ccstr, ErrorFile, NULL, \
duke@435	2539	"If an error occurs, save the error data to this file " \
duke@435	2540	"[default: ./hs_err_pid%p.log] (%p replaced with pid)") \
duke@435	2541	\
duke@435	2542	product(bool, DisplayVMOutputToStderr, false, \
duke@435	2543	"If DisplayVMOutput is true, display all VM output to stderr") \
duke@435	2544	\
duke@435	2545	product(bool, DisplayVMOutputToStdout, false, \
duke@435	2546	"If DisplayVMOutput is true, display all VM output to stdout") \
duke@435	2547	\
duke@435	2548	product(bool, UseHeavyMonitors, false, \
duke@435	2549	"use heavyweight instead of lightweight Java monitors") \
duke@435	2550	\
duke@435	2551	notproduct(bool, PrintSymbolTableSizeHistogram, false, \
duke@435	2552	"print histogram of the symbol table") \
duke@435	2553	\
duke@435	2554	notproduct(bool, ExitVMOnVerifyError, false, \
duke@435	2555	"standard exit from VM if bytecode verify error " \
duke@435	2556	"(only in debug mode)") \
duke@435	2557	\
duke@435	2558	notproduct(ccstr, AbortVMOnException, NULL, \
duke@435	2559	"Call fatal if this exception is thrown. Example: " \
duke@435	2560	"java -XX:AbortVMOnException=java.lang.NullPointerException Foo") \
duke@435	2561	\
kvn@2039	2562	notproduct(ccstr, AbortVMOnExceptionMessage, NULL, \
kvn@2039	2563	"Call fatal if the exception pointed by AbortVMOnException " \
kvn@2039	2564	"has this message.") \
kvn@2039	2565	\
duke@435	2566	develop(bool, DebugVtables, false, \
duke@435	2567	"add debugging code to vtable dispatch") \
duke@435	2568	\
duke@435	2569	develop(bool, PrintVtables, false, \
duke@435	2570	"print vtables when printing klass") \
duke@435	2571	\
duke@435	2572	notproduct(bool, PrintVtableStats, false, \
duke@435	2573	"print vtables stats at end of run") \
duke@435	2574	\
duke@435	2575	develop(bool, TraceCreateZombies, false, \
duke@435	2576	"trace creation of zombie nmethods") \
duke@435	2577	\
duke@435	2578	notproduct(bool, IgnoreLockingAssertions, false, \
duke@435	2579	"disable locking assertions (for speed)") \
duke@435	2580	\
duke@435	2581	notproduct(bool, VerifyLoopOptimizations, false, \
duke@435	2582	"verify major loop optimizations") \
duke@435	2583	\
duke@435	2584	product(bool, RangeCheckElimination, true, \
duke@435	2585	"Split loop iterations to eliminate range checks") \
duke@435	2586	\
duke@435	2587	develop_pd(bool, UncommonNullCast, \
duke@435	2588	"track occurrences of null in casts; adjust compiler tactics") \
duke@435	2589	\
duke@435	2590	develop(bool, TypeProfileCasts, true, \
duke@435	2591	"treat casts like calls for purposes of type profiling") \
duke@435	2592	\
duke@435	2593	develop(bool, MonomorphicArrayCheck, true, \
duke@435	2594	"Uncommon-trap array store checks that require full type check") \
duke@435	2595	\
jrose@2101	2596	diagnostic(bool, ProfileDynamicTypes, true, \
jrose@2101	2597	"do extra type profiling and use it more aggressively") \
jrose@2101	2598	\
duke@435	2599	develop(bool, DelayCompilationDuringStartup, true, \
duke@435	2600	"Delay invoking the compiler until main application class is " \
duke@435	2601	"loaded") \
duke@435	2602	\
duke@435	2603	develop(bool, CompileTheWorld, false, \
duke@435	2604	"Compile all methods in all classes in bootstrap class path " \
duke@435	2605	"(stress test)") \
duke@435	2606	\
duke@435	2607	develop(bool, CompileTheWorldPreloadClasses, true, \
duke@435	2608	"Preload all classes used by a class before start loading") \
duke@435	2609	\
kvn@1623	2610	notproduct(intx, CompileTheWorldSafepointInterval, 100, \
kvn@1623	2611	"Force a safepoint every n compiles so sweeper can keep up") \
kvn@1623	2612	\
duke@435	2613	develop(bool, TraceIterativeGVN, false, \
duke@435	2614	"Print progress during Iterative Global Value Numbering") \
duke@435	2615	\
duke@435	2616	develop(bool, FillDelaySlots, true, \
duke@435	2617	"Fill delay slots (on SPARC only)") \
duke@435	2618	\
duke@435	2619	develop(bool, VerifyIterativeGVN, false, \
duke@435	2620	"Verify Def-Use modifications during sparse Iterative Global " \
duke@435	2621	"Value Numbering") \
duke@435	2622	\
duke@435	2623	notproduct(bool, TracePhaseCCP, false, \
duke@435	2624	"Print progress during Conditional Constant Propagation") \
duke@435	2625	\
duke@435	2626	develop(bool, TimeLivenessAnalysis, false, \
duke@435	2627	"Time computation of bytecode liveness analysis") \
duke@435	2628	\
duke@435	2629	develop(bool, TraceLivenessGen, false, \
duke@435	2630	"Trace the generation of liveness analysis information") \
duke@435	2631	\
duke@435	2632	notproduct(bool, TraceLivenessQuery, false, \
duke@435	2633	"Trace queries of liveness analysis information") \
duke@435	2634	\
duke@435	2635	notproduct(bool, CollectIndexSetStatistics, false, \
duke@435	2636	"Collect information about IndexSets") \
duke@435	2637	\
duke@435	2638	develop(bool, PrintDominators, false, \
duke@435	2639	"Print out dominator trees for GVN") \
duke@435	2640	\
duke@435	2641	develop(bool, UseLoopSafepoints, true, \
duke@435	2642	"Generate Safepoint nodes in every loop") \
duke@435	2643	\
duke@435	2644	notproduct(bool, TraceCISCSpill, false, \
duke@435	2645	"Trace allocators use of cisc spillable instructions") \
duke@435	2646	\
duke@435	2647	notproduct(bool, TraceSpilling, false, \
duke@435	2648	"Trace spilling") \
duke@435	2649	\
duke@435	2650	product(bool, SplitIfBlocks, true, \
duke@435	2651	"Clone compares and control flow through merge points to fold " \
duke@435	2652	"some branches") \
duke@435	2653	\
duke@435	2654	develop(intx, FastAllocateSizeLimit, 128*K, \
duke@435	2655	/* Note: This value is zero mod 1<<13 for a cheap sparc set. */ \
duke@435	2656	"Inline allocations larger than this in doublewords must go slow")\
duke@435	2657	\
duke@435	2658	product(bool, AggressiveOpts, false, \
duke@435	2659	"Enable aggressive optimizations - see arguments.cpp") \
duke@435	2660	\
kvn@627	2661	product(bool, UseStringCache, false, \
kvn@627	2662	"Enable String cache capabilities on String.java") \
kvn@627	2663	\
duke@435	2664	/* statistics */ \
duke@435	2665	develop(bool, CountCompiledCalls, false, \
duke@435	2666	"counts method invocations") \
duke@435	2667	\
duke@435	2668	notproduct(bool, CountRuntimeCalls, false, \
duke@435	2669	"counts VM runtime calls") \
duke@435	2670	\
duke@435	2671	develop(bool, CountJNICalls, false, \
duke@435	2672	"counts jni method invocations") \
duke@435	2673	\
duke@435	2674	notproduct(bool, CountJVMCalls, false, \
duke@435	2675	"counts jvm method invocations") \
duke@435	2676	\
duke@435	2677	notproduct(bool, CountRemovableExceptions, false, \
duke@435	2678	"count exceptions that could be replaced by branches due to " \
duke@435	2679	"inlining") \
duke@435	2680	\
duke@435	2681	notproduct(bool, ICMissHistogram, false, \
duke@435	2682	"produce histogram of IC misses") \
duke@435	2683	\
duke@435	2684	notproduct(bool, PrintClassStatistics, false, \
duke@435	2685	"prints class statistics at end of run") \
duke@435	2686	\
duke@435	2687	notproduct(bool, PrintMethodStatistics, false, \
duke@435	2688	"prints method statistics at end of run") \
duke@435	2689	\
duke@435	2690	/* interpreter */ \
duke@435	2691	develop(bool, ClearInterpreterLocals, false, \
duke@435	2692	"Always clear local variables of interpreter activations upon " \
duke@435	2693	"entry") \
duke@435	2694	\
duke@435	2695	product_pd(bool, RewriteBytecodes, \
duke@435	2696	"Allow rewriting of bytecodes (bytecodes are not immutable)") \
duke@435	2697	\
duke@435	2698	product_pd(bool, RewriteFrequentPairs, \
duke@435	2699	"Rewrite frequently used bytecode pairs into a single bytecode") \
duke@435	2700	\
jrose@535	2701	diagnostic(bool, PrintInterpreter, false, \
duke@435	2702	"Prints the generated interpreter code") \
duke@435	2703	\
duke@435	2704	product(bool, UseInterpreter, true, \
duke@435	2705	"Use interpreter for non-compiled methods") \
duke@435	2706	\
duke@435	2707	develop(bool, UseFastSignatureHandlers, true, \
duke@435	2708	"Use fast signature handlers for native calls") \
duke@435	2709	\
duke@435	2710	develop(bool, UseV8InstrsOnly, false, \
duke@435	2711	"Use SPARC-V8 Compliant instruction subset") \
duke@435	2712	\
duke@435	2713	product(bool, UseNiagaraInstrs, false, \
duke@435	2714	"Use Niagara-efficient instruction subset") \
duke@435	2715	\
duke@435	2716	develop(bool, UseCASForSwap, false, \
duke@435	2717	"Do not use swap instructions, but only CAS (in a loop) on SPARC")\
duke@435	2718	\
duke@435	2719	product(bool, UseLoopCounter, true, \
duke@435	2720	"Increment invocation counter on backward branch") \
duke@435	2721	\
duke@435	2722	product(bool, UseFastEmptyMethods, true, \
duke@435	2723	"Use fast method entry code for empty methods") \
duke@435	2724	\
duke@435	2725	product(bool, UseFastAccessorMethods, true, \
duke@435	2726	"Use fast method entry code for accessor methods") \
duke@435	2727	\
duke@435	2728	product_pd(bool, UseOnStackReplacement, \
duke@435	2729	"Use on stack replacement, calls runtime if invoc. counter " \
duke@435	2730	"overflows in loop") \
duke@435	2731	\
duke@435	2732	notproduct(bool, TraceOnStackReplacement, false, \
duke@435	2733	"Trace on stack replacement") \
duke@435	2734	\
duke@435	2735	develop(bool, PoisonOSREntry, true, \
duke@435	2736	"Detect abnormal calls to OSR code") \
duke@435	2737	\
duke@435	2738	product_pd(bool, PreferInterpreterNativeStubs, \
duke@435	2739	"Use always interpreter stubs for native methods invoked via " \
duke@435	2740	"interpreter") \
duke@435	2741	\
duke@435	2742	develop(bool, CountBytecodes, false, \
duke@435	2743	"Count number of bytecodes executed") \
duke@435	2744	\
duke@435	2745	develop(bool, PrintBytecodeHistogram, false, \
duke@435	2746	"Print histogram of the executed bytecodes") \
duke@435	2747	\
duke@435	2748	develop(bool, PrintBytecodePairHistogram, false, \
duke@435	2749	"Print histogram of the executed bytecode pairs") \
duke@435	2750	\
jrose@535	2751	diagnostic(bool, PrintSignatureHandlers, false, \
duke@435	2752	"Print code generated for native method signature handlers") \
duke@435	2753	\
duke@435	2754	develop(bool, VerifyOops, false, \
duke@435	2755	"Do plausibility checks for oops") \
duke@435	2756	\
duke@435	2757	develop(bool, CheckUnhandledOops, false, \
duke@435	2758	"Check for unhandled oops in VM code") \
duke@435	2759	\
duke@435	2760	develop(bool, VerifyJNIFields, trueInDebug, \
duke@435	2761	"Verify jfieldIDs for instance fields") \
duke@435	2762	\
duke@435	2763	notproduct(bool, VerifyJNIEnvThread, false, \
duke@435	2764	"Verify JNIEnv.thread == Thread::current() when entering VM " \
duke@435	2765	"from JNI") \
duke@435	2766	\
duke@435	2767	develop(bool, VerifyFPU, false, \
duke@435	2768	"Verify FPU state (check for NaN's, etc.)") \
duke@435	2769	\
duke@435	2770	develop(bool, VerifyThread, false, \
duke@435	2771	"Watch the thread register for corruption (SPARC only)") \
duke@435	2772	\
duke@435	2773	develop(bool, VerifyActivationFrameSize, false, \
duke@435	2774	"Verify that activation frame didn't become smaller than its " \
duke@435	2775	"minimal size") \
duke@435	2776	\
duke@435	2777	develop(bool, TraceFrequencyInlining, false, \
duke@435	2778	"Trace frequency based inlining") \
duke@435	2779	\
duke@435	2780	notproduct(bool, TraceTypeProfile, false, \
duke@435	2781	"Trace type profile") \
duke@435	2782	\
duke@435	2783	develop_pd(bool, InlineIntrinsics, \
duke@435	2784	"Inline intrinsics that can be statically resolved") \
duke@435	2785	\
duke@435	2786	product_pd(bool, ProfileInterpreter, \
duke@435	2787	"Profile at the bytecode level during interpretation") \
duke@435	2788	\
duke@435	2789	develop_pd(bool, ProfileTraps, \
duke@435	2790	"Profile deoptimization traps at the bytecode level") \
duke@435	2791	\
duke@435	2792	product(intx, ProfileMaturityPercentage, 20, \
duke@435	2793	"number of method invocations/branches (expressed as % of " \
duke@435	2794	"CompileThreshold) before using the method's profile") \
duke@435	2795	\
duke@435	2796	develop(bool, PrintMethodData, false, \
duke@435	2797	"Print the results of +ProfileInterpreter at end of run") \
duke@435	2798	\
duke@435	2799	develop(bool, VerifyDataPointer, trueInDebug, \
duke@435	2800	"Verify the method data pointer during interpreter profiling") \
duke@435	2801	\
duke@435	2802	develop(bool, VerifyCompiledCode, false, \
duke@435	2803	"Include miscellaneous runtime verifications in nmethod code; " \
phh@1499	2804	"default off because it disturbs nmethod size heuristics") \
duke@435	2805	\
minqi@1554	2806	notproduct(bool, CrashGCForDumpingJavaThread, false, \
minqi@1554	2807	"Manually make GC thread crash then dump java stack trace; " \
minqi@1554	2808	"Test only") \
duke@435	2809	\
duke@435	2810	/* compilation */ \
duke@435	2811	product(bool, UseCompiler, true, \
duke@435	2812	"use compilation") \
duke@435	2813	\
duke@435	2814	develop(bool, TraceCompilationPolicy, false, \
duke@435	2815	"Trace compilation policy") \
duke@435	2816	\
duke@435	2817	develop(bool, TimeCompilationPolicy, false, \
duke@435	2818	"Time the compilation policy") \
duke@435	2819	\
duke@435	2820	product(bool, UseCounterDecay, true, \
duke@435	2821	"adjust recompilation counters") \
duke@435	2822	\
duke@435	2823	develop(intx, CounterHalfLifeTime, 30, \
duke@435	2824	"half-life time of invocation counters (in secs)") \
duke@435	2825	\
duke@435	2826	develop(intx, CounterDecayMinIntervalLength, 500, \
duke@435	2827	"Min. ms. between invocation of CounterDecay") \
duke@435	2828	\
duke@435	2829	product(bool, AlwaysCompileLoopMethods, false, \
duke@435	2830	"when using recompilation, never interpret methods " \
duke@435	2831	"containing loops") \
duke@435	2832	\
duke@435	2833	product(bool, DontCompileHugeMethods, true, \
duke@435	2834	"don't compile methods > HugeMethodLimit") \
duke@435	2835	\
duke@435	2836	/* Bytecode escape analysis estimation. */ \
duke@435	2837	product(bool, EstimateArgEscape, true, \
duke@435	2838	"Analyze bytecodes to estimate escape state of arguments") \
duke@435	2839	\
duke@435	2840	product(intx, BCEATraceLevel, 0, \
duke@435	2841	"How much tracing to do of bytecode escape analysis estimates") \
duke@435	2842	\
duke@435	2843	product(intx, MaxBCEAEstimateLevel, 5, \
duke@435	2844	"Maximum number of nested calls that are analyzed by BC EA.") \
duke@435	2845	\
duke@435	2846	product(intx, MaxBCEAEstimateSize, 150, \
duke@435	2847	"Maximum bytecode size of a method to be analyzed by BC EA.") \
duke@435	2848	\
duke@435	2849	product(intx, AllocatePrefetchStyle, 1, \
duke@435	2850	"0 = no prefetch, " \
duke@435	2851	"1 = prefetch instructions for each allocation, " \
kvn@1802	2852	"2 = use TLAB watermark to gate allocation prefetch, " \
kvn@1802	2853	"3 = use BIS instruction on Sparc for allocation prefetch") \
duke@435	2854	\
duke@435	2855	product(intx, AllocatePrefetchDistance, -1, \
duke@435	2856	"Distance to prefetch ahead of allocation pointer") \
duke@435	2857	\
duke@435	2858	product(intx, AllocatePrefetchLines, 1, \
duke@435	2859	"Number of lines to prefetch ahead of allocation pointer") \
duke@435	2860	\
duke@435	2861	product(intx, AllocatePrefetchStepSize, 16, \
duke@435	2862	"Step size in bytes of sequential prefetch instructions") \
duke@435	2863	\
duke@435	2864	product(intx, AllocatePrefetchInstr, 0, \
duke@435	2865	"Prefetch instruction to prefetch ahead of allocation pointer") \
duke@435	2866	\
duke@435	2867	product(intx, ReadPrefetchInstr, 0, \
duke@435	2868	"Prefetch instruction to prefetch ahead") \
duke@435	2869	\
duke@435	2870	/* deoptimization */ \
duke@435	2871	develop(bool, TraceDeoptimization, false, \
duke@435	2872	"Trace deoptimization") \
duke@435	2873	\
duke@435	2874	develop(bool, DebugDeoptimization, false, \
duke@435	2875	"Tracing various information while debugging deoptimization") \
duke@435	2876	\
duke@435	2877	product(intx, SelfDestructTimer, 0, \
duke@435	2878	"Will cause VM to terminate after a given time (in minutes) " \
duke@435	2879	"(0 means off)") \
duke@435	2880	\
duke@435	2881	product(intx, MaxJavaStackTraceDepth, 1024, \
duke@435	2882	"Max. no. of lines in the stack trace for Java exceptions " \
duke@435	2883	"(0 means all)") \
duke@435	2884	\
bobv@2508	2885	NOT_EMBEDDED(develop(intx, GuaranteedSafepointInterval, 1000, \
duke@435	2886	"Guarantee a safepoint (at least) every so many milliseconds " \
bobv@2508	2887	"(0 means none)")) \
bobv@2508	2888	\
bobv@2508	2889	EMBEDDED_ONLY(product(intx, GuaranteedSafepointInterval, 0, \
bobv@2508	2890	"Guarantee a safepoint (at least) every so many milliseconds " \
bobv@2508	2891	"(0 means none)")) \
duke@435	2892	\
duke@435	2893	product(intx, SafepointTimeoutDelay, 10000, \
duke@435	2894	"Delay in milliseconds for option SafepointTimeout") \
duke@435	2895	\
duke@435	2896	product(intx, NmethodSweepFraction, 4, \
duke@435	2897	"Number of invocations of sweeper to cover all nmethods") \
duke@435	2898	\
never@1893	2899	product(intx, NmethodSweepCheckInterval, 5, \
never@1893	2900	"Compilers wake up every n seconds to possibly sweep nmethods") \
never@1893	2901	\
duke@435	2902	notproduct(intx, MemProfilingInterval, 500, \
duke@435	2903	"Time between each invocation of the MemProfiler") \
duke@435	2904	\
duke@435	2905	develop(intx, MallocCatchPtr, -1, \
duke@435	2906	"Hit breakpoint when mallocing/freeing this pointer") \
duke@435	2907	\
duke@435	2908	notproduct(intx, AssertRepeat, 1, \
duke@435	2909	"number of times to evaluate expression in assert " \
duke@435	2910	"(to estimate overhead); only works with -DUSE_REPEATED_ASSERTS") \
duke@435	2911	\
duke@435	2912	notproduct(ccstrlist, SuppressErrorAt, "", \
duke@435	2913	"List of assertions (file:line) to muzzle") \
duke@435	2914	\
duke@435	2915	notproduct(uintx, HandleAllocationLimit, 1024, \
duke@435	2916	"Threshold for HandleMark allocation when +TraceHandleAllocation "\
duke@435	2917	"is used") \
duke@435	2918	\
duke@435	2919	develop(uintx, TotalHandleAllocationLimit, 1024, \
duke@435	2920	"Threshold for total handle allocation when " \
duke@435	2921	"+TraceHandleAllocation is used") \
duke@435	2922	\
duke@435	2923	develop(intx, StackPrintLimit, 100, \
duke@435	2924	"number of stack frames to print in VM-level stack dump") \
duke@435	2925	\
duke@435	2926	notproduct(intx, MaxElementPrintSize, 256, \
duke@435	2927	"maximum number of elements to print") \
duke@435	2928	\
duke@435	2929	notproduct(intx, MaxSubklassPrintSize, 4, \
duke@435	2930	"maximum number of subklasses to print when printing klass") \
duke@435	2931	\
jrose@1592	2932	product(intx, MaxInlineLevel, 9, \
duke@435	2933	"maximum number of nested calls that are inlined") \
duke@435	2934	\
jrose@1592	2935	product(intx, MaxRecursiveInlineLevel, 1, \
duke@435	2936	"maximum number of nested recursive calls that are inlined") \
duke@435	2937	\
kvn@1110	2938	product_pd(intx, InlineSmallCode, \
duke@435	2939	"Only inline already compiled methods if their code size is " \
duke@435	2940	"less than this") \
duke@435	2941	\
duke@435	2942	product(intx, MaxInlineSize, 35, \
duke@435	2943	"maximum bytecode size of a method to be inlined") \
duke@435	2944	\
duke@435	2945	product_pd(intx, FreqInlineSize, \
duke@435	2946	"maximum bytecode size of a frequent method to be inlined") \
duke@435	2947	\
jrose@1592	2948	product(intx, MaxTrivialSize, 6, \
duke@435	2949	"maximum bytecode size of a trivial method to be inlined") \
duke@435	2950	\
jrose@1592	2951	product(intx, MinInliningThreshold, 250, \
duke@435	2952	"min. invocation count a method needs to have to be inlined") \
duke@435	2953	\
duke@435	2954	develop(intx, AlignEntryCode, 4, \
duke@435	2955	"aligns entry code to specified value (in bytes)") \
duke@435	2956	\
duke@435	2957	develop(intx, MethodHistogramCutoff, 100, \
duke@435	2958	"cutoff value for method invoc. histogram (+CountCalls)") \
duke@435	2959	\
duke@435	2960	develop(intx, ProfilerNumberOfInterpretedMethods, 25, \
duke@435	2961	"# of interpreted methods to show in profile") \
duke@435	2962	\
duke@435	2963	develop(intx, ProfilerNumberOfCompiledMethods, 25, \
duke@435	2964	"# of compiled methods to show in profile") \
duke@435	2965	\
duke@435	2966	develop(intx, ProfilerNumberOfStubMethods, 25, \
duke@435	2967	"# of stub methods to show in profile") \
duke@435	2968	\
duke@435	2969	develop(intx, ProfilerNumberOfRuntimeStubNodes, 25, \
duke@435	2970	"# of runtime stub nodes to show in profile") \
duke@435	2971	\
duke@435	2972	product(intx, ProfileIntervalsTicks, 100, \
duke@435	2973	"# of ticks between printing of interval profile " \
duke@435	2974	"(+ProfileIntervals)") \
duke@435	2975	\
duke@435	2976	notproduct(intx, ScavengeALotInterval, 1, \
duke@435	2977	"Interval between which scavenge will occur with +ScavengeALot") \
duke@435	2978	\
duke@435	2979	notproduct(intx, FullGCALotInterval, 1, \
duke@435	2980	"Interval between which full gc will occur with +FullGCALot") \
duke@435	2981	\
duke@435	2982	notproduct(intx, FullGCALotStart, 0, \
duke@435	2983	"For which invocation to start FullGCAlot") \
duke@435	2984	\
duke@435	2985	notproduct(intx, FullGCALotDummies, 32*K, \
duke@435	2986	"Dummy object allocated with +FullGCALot, forcing all objects " \
duke@435	2987	"to move") \
duke@435	2988	\
duke@435	2989	develop(intx, DontYieldALotInterval, 10, \
duke@435	2990	"Interval between which yields will be dropped (milliseconds)") \
duke@435	2991	\
duke@435	2992	develop(intx, MinSleepInterval, 1, \
duke@435	2993	"Minimum sleep() interval (milliseconds) when " \
duke@435	2994	"ConvertSleepToYield is off (used for SOLARIS)") \
duke@435	2995	\
duke@435	2996	product(intx, EventLogLength, 2000, \
duke@435	2997	"maximum nof events in event log") \
duke@435	2998	\
duke@435	2999	develop(intx, ProfilerPCTickThreshold, 15, \
duke@435	3000	"Number of ticks in a PC buckets to be a hotspot") \
duke@435	3001	\
duke@435	3002	notproduct(intx, DeoptimizeALotInterval, 5, \
duke@435	3003	"Number of exits until DeoptimizeALot kicks in") \
duke@435	3004	\
duke@435	3005	notproduct(intx, ZombieALotInterval, 5, \
duke@435	3006	"Number of exits until ZombieALot kicks in") \
duke@435	3007	\
duke@435	3008	develop(bool, StressNonEntrant, false, \
duke@435	3009	"Mark nmethods non-entrant at registration") \
duke@435	3010	\
duke@435	3011	diagnostic(intx, MallocVerifyInterval, 0, \
duke@435	3012	"if non-zero, verify C heap after every N calls to " \
duke@435	3013	"malloc/realloc/free") \
duke@435	3014	\
duke@435	3015	diagnostic(intx, MallocVerifyStart, 0, \
duke@435	3016	"if non-zero, start verifying C heap after Nth call to " \
duke@435	3017	"malloc/realloc/free") \
duke@435	3018	\
iveresov@2138	3019	product(intx, TypeProfileWidth, 2, \
duke@435	3020	"number of receiver types to record in call/cast profile") \
duke@435	3021	\
duke@435	3022	develop(intx, BciProfileWidth, 2, \
duke@435	3023	"number of return bci's to record in ret profile") \
duke@435	3024	\
duke@435	3025	product(intx, PerMethodRecompilationCutoff, 400, \
duke@435	3026	"After recompiling N times, stay in the interpreter (-1=>'Inf')") \
duke@435	3027	\
kvn@1641	3028	product(intx, PerBytecodeRecompilationCutoff, 200, \
duke@435	3029	"Per-BCI limit on repeated recompilation (-1=>'Inf')") \
duke@435	3030	\
duke@435	3031	product(intx, PerMethodTrapLimit, 100, \
duke@435	3032	"Limit on traps (of one kind) in a method (includes inlines)") \
duke@435	3033	\
duke@435	3034	product(intx, PerBytecodeTrapLimit, 4, \
duke@435	3035	"Limit on traps (of one kind) at a particular BCI") \
duke@435	3036	\
duke@435	3037	develop(intx, FreqCountInvocations, 1, \
duke@435	3038	"Scaling factor for branch frequencies (deprecated)") \
duke@435	3039	\
duke@435	3040	develop(intx, InlineFrequencyRatio, 20, \
duke@435	3041	"Ratio of call site execution to caller method invocation") \
duke@435	3042	\
duke@435	3043	develop_pd(intx, InlineFrequencyCount, \
duke@435	3044	"Count of call site execution necessary to trigger frequent " \
duke@435	3045	"inlining") \
duke@435	3046	\
duke@435	3047	develop(intx, InlineThrowCount, 50, \
duke@435	3048	"Force inlining of interpreted methods that throw this often") \
duke@435	3049	\
duke@435	3050	develop(intx, InlineThrowMaxSize, 200, \
duke@435	3051	"Force inlining of throwing methods smaller than this") \
duke@435	3052	\
duke@435	3053	product(intx, AliasLevel, 3, \
duke@435	3054	"0 for no aliasing, 1 for oop/field/static/array split, " \
duke@435	3055	"2 for class split, 3 for unique instances") \
duke@435	3056	\
duke@435	3057	develop(bool, VerifyAliases, false, \
duke@435	3058	"perform extra checks on the results of alias analysis") \
duke@435	3059	\
duke@435	3060	develop(intx, ProfilerNodeSize, 1024, \
duke@435	3061	"Size in K to allocate for the Profile Nodes of each thread") \
duke@435	3062	\
duke@435	3063	develop(intx, V8AtomicOperationUnderLockSpinCount, 50, \
duke@435	3064	"Number of times to spin wait on a v8 atomic operation lock") \
duke@435	3065	\
duke@435	3066	product(intx, ReadSpinIterations, 100, \
duke@435	3067	"Number of read attempts before a yield (spin inner loop)") \
duke@435	3068	\
duke@435	3069	product_pd(intx, PreInflateSpin, \
duke@435	3070	"Number of times to spin wait before inflation") \
duke@435	3071	\
duke@435	3072	product(intx, PreBlockSpin, 10, \
duke@435	3073	"Number of times to spin in an inflated lock before going to " \
duke@435	3074	"an OS lock") \
duke@435	3075	\
duke@435	3076	/* gc parameters */ \
phh@1499	3077	product(uintx, InitialHeapSize, 0, \
phh@1499	3078	"Initial heap size (in bytes); zero means OldSize + NewSize") \
phh@1499	3079	\
phh@1499	3080	product(uintx, MaxHeapSize, ScaleForWordSize(96*M), \
phh@1499	3081	"Maximum heap size (in bytes)") \
phh@1499	3082	\
phh@1499	3083	product(uintx, OldSize, ScaleForWordSize(4*M), \
phh@1499	3084	"Initial tenured generation size (in bytes)") \
phh@1499	3085	\
phh@1722	3086	product(uintx, NewSize, ScaleForWordSize(1*M), \
phh@1499	3087	"Initial new generation size (in bytes)") \
duke@435	3088	\
duke@435	3089	product(uintx, MaxNewSize, max_uintx, \
phh@1499	3090	"Maximum new generation size (in bytes), max_uintx means set " \
phh@1499	3091	"ergonomically") \
duke@435	3092	\
duke@435	3093	product(uintx, PretenureSizeThreshold, 0, \
phh@1499	3094	"Maximum size in bytes of objects allocated in DefNew " \
phh@1499	3095	"generation; zero means no maximum") \
phh@1499	3096	\
phh@1499	3097	product(uintx, TLABSize, 0, \
phh@1499	3098	"Starting TLAB size (in bytes); zero means set ergonomically") \
duke@435	3099	\
duke@435	3100	product(uintx, MinTLABSize, 2*K, \
duke@435	3101	"Minimum allowed TLAB size (in bytes)") \
duke@435	3102	\
duke@435	3103	product(uintx, TLABAllocationWeight, 35, \
duke@435	3104	"Allocation averaging weight") \
duke@435	3105	\
duke@435	3106	product(uintx, TLABWasteTargetPercent, 1, \
duke@435	3107	"Percentage of Eden that can be wasted") \
duke@435	3108	\
duke@435	3109	product(uintx, TLABRefillWasteFraction, 64, \
duke@435	3110	"Max TLAB waste at a refill (internal fragmentation)") \
duke@435	3111	\
duke@435	3112	product(uintx, TLABWasteIncrement, 4, \
duke@435	3113	"Increment allowed waste at slow allocation") \
duke@435	3114	\
phh@1499	3115	product(intx, SurvivorRatio, 8, \
duke@435	3116	"Ratio of eden/survivor space size") \
duke@435	3117	\
phh@1499	3118	product(intx, NewRatio, 2, \
duke@435	3119	"Ratio of new/old generation sizes") \
duke@435	3120	\
duke@435	3121	product_pd(uintx, NewSizeThreadIncrease, \
duke@435	3122	"Additional size added to desired new generation size per " \
duke@435	3123	"non-daemon thread (in bytes)") \
duke@435	3124	\
duke@435	3125	product_pd(uintx, PermSize, \
phh@1499	3126	"Initial size of permanent generation (in bytes)") \
duke@435	3127	\
duke@435	3128	product_pd(uintx, MaxPermSize, \
duke@435	3129	"Maximum size of permanent generation (in bytes)") \
duke@435	3130	\
duke@435	3131	product(uintx, MinHeapFreeRatio, 40, \
duke@435	3132	"Min percentage of heap free after GC to avoid expansion") \
duke@435	3133	\
duke@435	3134	product(uintx, MaxHeapFreeRatio, 70, \
duke@435	3135	"Max percentage of heap free after GC to avoid shrinking") \
duke@435	3136	\
duke@435	3137	product(intx, SoftRefLRUPolicyMSPerMB, 1000, \
duke@435	3138	"Number of milliseconds per MB of free space in the heap") \
duke@435	3139	\
duke@435	3140	product(uintx, MinHeapDeltaBytes, ScaleForWordSize(128*K), \
duke@435	3141	"Min change in heap space due to GC (in bytes)") \
duke@435	3142	\
duke@435	3143	product(uintx, MinPermHeapExpansion, ScaleForWordSize(256*K), \
duke@435	3144	"Min expansion of permanent heap (in bytes)") \
duke@435	3145	\
duke@435	3146	product(uintx, MaxPermHeapExpansion, ScaleForWordSize(4*M), \
duke@435	3147	"Max expansion of permanent heap without full GC (in bytes)") \
duke@435	3148	\
duke@435	3149	product(intx, QueuedAllocationWarningCount, 0, \
duke@435	3150	"Number of times an allocation that queues behind a GC " \
duke@435	3151	"will retry before printing a warning") \
duke@435	3152	\
duke@435	3153	diagnostic(uintx, VerifyGCStartAt, 0, \
duke@435	3154	"GC invoke count where +VerifyBefore/AfterGC kicks in") \
duke@435	3155	\
duke@435	3156	diagnostic(intx, VerifyGCLevel, 0, \
duke@435	3157	"Generation level at which to start +VerifyBefore/AfterGC") \
duke@435	3158	\
duke@435	3159	develop(uintx, ExitAfterGCNum, 0, \
duke@435	3160	"If non-zero, exit after this GC.") \
duke@435	3161	\
duke@435	3162	product(intx, MaxTenuringThreshold, 15, \
duke@435	3163	"Maximum value for tenuring threshold") \
duke@435	3164	\
duke@435	3165	product(intx, InitialTenuringThreshold, 7, \
duke@435	3166	"Initial value for tenuring threshold") \
duke@435	3167	\
duke@435	3168	product(intx, TargetSurvivorRatio, 50, \
duke@435	3169	"Desired percentage of survivor space used after scavenge") \
duke@435	3170	\
jcoomes@873	3171	product(uintx, MarkSweepDeadRatio, 5, \
duke@435	3172	"Percentage (0-100) of the old gen allowed as dead wood." \
duke@435	3173	"Serial mark sweep treats this as both the min and max value." \
duke@435	3174	"CMS uses this value only if it falls back to mark sweep." \
duke@435	3175	"Par compact uses a variable scale based on the density of the" \
duke@435	3176	"generation and treats this as the max value when the heap is" \
duke@435	3177	"either completely full or completely empty. Par compact also" \
duke@435	3178	"has a smaller default value; see arguments.cpp.") \
duke@435	3179	\
jcoomes@873	3180	product(uintx, PermMarkSweepDeadRatio, 20, \
duke@435	3181	"Percentage (0-100) of the perm gen allowed as dead wood." \
duke@435	3182	"See MarkSweepDeadRatio for collector-specific comments.") \
duke@435	3183	\
duke@435	3184	product(intx, MarkSweepAlwaysCompactCount, 4, \
duke@435	3185	"How often should we fully compact the heap (ignoring the dead " \
duke@435	3186	"space parameters)") \
duke@435	3187	\
duke@435	3188	product(intx, PrintCMSStatistics, 0, \
duke@435	3189	"Statistics for CMS") \
duke@435	3190	\
duke@435	3191	product(bool, PrintCMSInitiationStatistics, false, \
duke@435	3192	"Statistics for initiating a CMS collection") \
duke@435	3193	\
duke@435	3194	product(intx, PrintFLSStatistics, 0, \
duke@435	3195	"Statistics for CMS' FreeListSpace") \
duke@435	3196	\
duke@435	3197	product(intx, PrintFLSCensus, 0, \
duke@435	3198	"Census for CMS' FreeListSpace") \
duke@435	3199	\
duke@435	3200	develop(uintx, GCExpandToAllocateDelayMillis, 0, \
duke@435	3201	"Delay in ms between expansion and allocation") \
duke@435	3202	\
duke@435	3203	product(intx, DeferThrSuspendLoopCount, 4000, \
duke@435	3204	"(Unstable) Number of times to iterate in safepoint loop " \
duke@435	3205	" before blocking VM threads ") \
duke@435	3206	\
duke@435	3207	product(intx, DeferPollingPageLoopCount, -1, \
duke@435	3208	"(Unsafe,Unstable) Number of iterations in safepoint loop " \
duke@435	3209	"before changing safepoint polling page to RO ") \
duke@435	3210	\
duke@435	3211	product(intx, SafepointSpinBeforeYield, 2000, "(Unstable)") \
duke@435	3212	\
duke@435	3213	product(bool, PSChunkLargeArrays, true, \
duke@435	3214	"true: process large arrays in chunks") \
duke@435	3215	\
duke@435	3216	product(uintx, GCDrainStackTargetSize, 64, \
duke@435	3217	"how many entries we'll try to leave on the stack during " \
duke@435	3218	"parallel GC") \
duke@435	3219	\
duke@435	3220	/* stack parameters */ \
duke@435	3221	product_pd(intx, StackYellowPages, \
duke@435	3222	"Number of yellow zone (recoverable overflows) pages") \
duke@435	3223	\
duke@435	3224	product_pd(intx, StackRedPages, \
duke@435	3225	"Number of red zone (unrecoverable overflows) pages") \
duke@435	3226	\
duke@435	3227	product_pd(intx, StackShadowPages, \
duke@435	3228	"Number of shadow zone (for overflow checking) pages" \
duke@435	3229	" this should exceed the depth of the VM and native call stack") \
duke@435	3230	\
duke@435	3231	product_pd(intx, ThreadStackSize, \
duke@435	3232	"Thread Stack Size (in Kbytes)") \
duke@435	3233	\
duke@435	3234	product_pd(intx, VMThreadStackSize, \
duke@435	3235	"Non-Java Thread Stack Size (in Kbytes)") \
duke@435	3236	\
duke@435	3237	product_pd(intx, CompilerThreadStackSize, \
duke@435	3238	"Compiler Thread Stack Size (in Kbytes)") \
duke@435	3239	\
duke@435	3240	develop_pd(uintx, JVMInvokeMethodSlack, \
duke@435	3241	"Stack space (bytes) required for JVM_InvokeMethod to complete") \
duke@435	3242	\
duke@435	3243	product(uintx, ThreadSafetyMargin, 50*M, \
duke@435	3244	"Thread safety margin is used on fixed-stack LinuxThreads (on " \
duke@435	3245	"Linux/x86 only) to prevent heap-stack collision. Set to 0 to " \
duke@435	3246	"disable this feature") \
duke@435	3247	\
duke@435	3248	/* code cache parameters */ \
duke@435	3249	develop(uintx, CodeCacheSegmentSize, 64, \
duke@435	3250	"Code cache segment size (in bytes) - smallest unit of " \
duke@435	3251	"allocation") \
duke@435	3252	\
duke@435	3253	develop_pd(intx, CodeEntryAlignment, \
duke@435	3254	"Code entry alignment for generated code (in bytes)") \
duke@435	3255	\
kvn@1800	3256	product_pd(intx, OptoLoopAlignment, \
kvn@1800	3257	"Align inner loops to zero relative to this modulus") \
kvn@1800	3258	\
duke@435	3259	product_pd(uintx, InitialCodeCacheSize, \
duke@435	3260	"Initial code cache size (in bytes)") \
duke@435	3261	\
duke@435	3262	product_pd(uintx, ReservedCodeCacheSize, \
duke@435	3263	"Reserved code cache size (in bytes) - maximum code cache size") \
duke@435	3264	\
duke@435	3265	product(uintx, CodeCacheMinimumFreeSpace, 500*K, \
duke@435	3266	"When less than X space left, we stop compiling.") \
duke@435	3267	\
duke@435	3268	product_pd(uintx, CodeCacheExpansionSize, \
duke@435	3269	"Code cache expansion size (in bytes)") \
duke@435	3270	\
duke@435	3271	develop_pd(uintx, CodeCacheMinBlockLength, \
duke@435	3272	"Minimum number of segments in a code cache block.") \
duke@435	3273	\
duke@435	3274	notproduct(bool, ExitOnFullCodeCache, false, \
duke@435	3275	"Exit the VM if we fill the code cache.") \
duke@435	3276	\
kvn@1637	3277	product(bool, UseCodeCacheFlushing, false, \
kvn@1637	3278	"Attempt to clean the code cache before shutting off compiler") \
kvn@1637	3279	\
kvn@1637	3280	product(intx, MinCodeCacheFlushingInterval, 30, \
kvn@1637	3281	"Min number of seconds between code cache cleaning sessions") \
kvn@1637	3282	\
kvn@1637	3283	product(uintx, CodeCacheFlushingMinimumFreeSpace, 1500*K, \
kvn@1637	3284	"When less than X space left, start code cache cleaning") \
kvn@1637	3285	\
duke@435	3286	/* interpreter debugging */ \
duke@435	3287	develop(intx, BinarySwitchThreshold, 5, \
duke@435	3288	"Minimal number of lookupswitch entries for rewriting to binary " \
duke@435	3289	"switch") \
duke@435	3290	\
duke@435	3291	develop(intx, StopInterpreterAt, 0, \
duke@435	3292	"Stops interpreter execution at specified bytecode number") \
duke@435	3293	\
duke@435	3294	develop(intx, TraceBytecodesAt, 0, \
duke@435	3295	"Traces bytecodes starting with specified bytecode number") \
duke@435	3296	\
duke@435	3297	/* compiler interface */ \
duke@435	3298	develop(intx, CIStart, 0, \
duke@435	3299	"the id of the first compilation to permit") \
duke@435	3300	\
duke@435	3301	develop(intx, CIStop, -1, \
duke@435	3302	"the id of the last compilation to permit") \
duke@435	3303	\
duke@435	3304	develop(intx, CIStartOSR, 0, \
duke@435	3305	"the id of the first osr compilation to permit " \
duke@435	3306	"(CICountOSR must be on)") \
duke@435	3307	\
duke@435	3308	develop(intx, CIStopOSR, -1, \
duke@435	3309	"the id of the last osr compilation to permit " \
duke@435	3310	"(CICountOSR must be on)") \
duke@435	3311	\
duke@435	3312	develop(intx, CIBreakAtOSR, -1, \
duke@435	3313	"id of osr compilation to break at") \
duke@435	3314	\
duke@435	3315	develop(intx, CIBreakAt, -1, \
duke@435	3316	"id of compilation to break at") \
duke@435	3317	\
duke@435	3318	product(ccstrlist, CompileOnly, "", \
duke@435	3319	"List of methods (pkg/class.name) to restrict compilation to") \
duke@435	3320	\
duke@435	3321	product(ccstr, CompileCommandFile, NULL, \
duke@435	3322	"Read compiler commands from this file [.hotspot_compiler]") \
duke@435	3323	\
duke@435	3324	product(ccstrlist, CompileCommand, "", \
duke@435	3325	"Prepend to .hotspot_compiler; e.g. log,java/lang/String.<init>") \
duke@435	3326	\
duke@435	3327	product(bool, CICompilerCountPerCPU, false, \
duke@435	3328	"1 compiler thread for log(N CPUs)") \
duke@435	3329	\
duke@435	3330	develop(intx, CIFireOOMAt, -1, \
duke@435	3331	"Fire OutOfMemoryErrors throughout CI for testing the compiler " \
duke@435	3332	"(non-negative value throws OOM after this many CI accesses " \
duke@435	3333	"in each compile)") \
duke@435	3334	\
duke@435	3335	develop(intx, CIFireOOMAtDelay, -1, \
duke@435	3336	"Wait for this many CI accesses to occur in all compiles before " \
duke@435	3337	"beginning to throw OutOfMemoryErrors in each compile") \
duke@435	3338	\
jcoomes@1344	3339	notproduct(bool, CIObjectFactoryVerify, false, \
jcoomes@1344	3340	"enable potentially expensive verification in ciObjectFactory") \
jcoomes@1344	3341	\
duke@435	3342	/* Priorities */ \
duke@435	3343	product_pd(bool, UseThreadPriorities, "Use native thread priorities") \
duke@435	3344	\
duke@435	3345	product(intx, ThreadPriorityPolicy, 0, \
duke@435	3346	"0 : Normal. "\
duke@435	3347	" VM chooses priorities that are appropriate for normal "\
duke@435	3348	" applications. On Solaris NORM_PRIORITY and above are mapped "\
duke@435	3349	" to normal native priority. Java priorities below NORM_PRIORITY"\
duke@435	3350	" map to lower native priority values. On Windows applications"\
duke@435	3351	" are allowed to use higher native priorities. However, with "\
duke@435	3352	" ThreadPriorityPolicy=0, VM will not use the highest possible"\
duke@435	3353	" native priority, THREAD_PRIORITY_TIME_CRITICAL, as it may "\
duke@435	3354	" interfere with system threads. On Linux thread priorities "\
duke@435	3355	" are ignored because the OS does not support static priority "\
duke@435	3356	" in SCHED_OTHER scheduling class which is the only choice for"\
duke@435	3357	" non-root, non-realtime applications. "\
duke@435	3358	"1 : Aggressive. "\
duke@435	3359	" Java thread priorities map over to the entire range of "\
duke@435	3360	" native thread priorities. Higher Java thread priorities map "\
duke@435	3361	" to higher native thread priorities. This policy should be "\
duke@435	3362	" used with care, as sometimes it can cause performance "\
duke@435	3363	" degradation in the application and/or the entire system. On "\
duke@435	3364	" Linux this policy requires root privilege.") \
duke@435	3365	\
duke@435	3366	product(bool, ThreadPriorityVerbose, false, \
duke@435	3367	"print priority changes") \
duke@435	3368	\
duke@435	3369	product(intx, DefaultThreadPriority, -1, \
duke@435	3370	"what native priority threads run at if not specified elsewhere (-1 means no change)") \
duke@435	3371	\
duke@435	3372	product(intx, CompilerThreadPriority, -1, \
duke@435	3373	"what priority should compiler threads run at (-1 means no change)") \
duke@435	3374	\
duke@435	3375	product(intx, VMThreadPriority, -1, \
duke@435	3376	"what priority should VM threads run at (-1 means no change)") \
duke@435	3377	\
duke@435	3378	product(bool, CompilerThreadHintNoPreempt, true, \
duke@435	3379	"(Solaris only) Give compiler threads an extra quanta") \
duke@435	3380	\
duke@435	3381	product(bool, VMThreadHintNoPreempt, false, \
duke@435	3382	"(Solaris only) Give VM thread an extra quanta") \
duke@435	3383	\
duke@435	3384	product(intx, JavaPriority1_To_OSPriority, -1, "Map Java priorities to OS priorities") \
duke@435	3385	product(intx, JavaPriority2_To_OSPriority, -1, "Map Java priorities to OS priorities") \
duke@435	3386	product(intx, JavaPriority3_To_OSPriority, -1, "Map Java priorities to OS priorities") \
duke@435	3387	product(intx, JavaPriority4_To_OSPriority, -1, "Map Java priorities to OS priorities") \
duke@435	3388	product(intx, JavaPriority5_To_OSPriority, -1, "Map Java priorities to OS priorities") \
duke@435	3389	product(intx, JavaPriority6_To_OSPriority, -1, "Map Java priorities to OS priorities") \
duke@435	3390	product(intx, JavaPriority7_To_OSPriority, -1, "Map Java priorities to OS priorities") \
duke@435	3391	product(intx, JavaPriority8_To_OSPriority, -1, "Map Java priorities to OS priorities") \
duke@435	3392	product(intx, JavaPriority9_To_OSPriority, -1, "Map Java priorities to OS priorities") \
duke@435	3393	product(intx, JavaPriority10_To_OSPriority,-1, "Map Java priorities to OS priorities") \
duke@435	3394	\
duke@435	3395	/* compiler debugging */ \
duke@435	3396	notproduct(intx, CompileTheWorldStartAt, 1, \
duke@435	3397	"First class to consider when using +CompileTheWorld") \
duke@435	3398	\
duke@435	3399	notproduct(intx, CompileTheWorldStopAt, max_jint, \
duke@435	3400	"Last class to consider when using +CompileTheWorld") \
duke@435	3401	\
duke@435	3402	develop(intx, NewCodeParameter, 0, \
duke@435	3403	"Testing Only: Create a dedicated integer parameter before " \
duke@435	3404	"putback") \
duke@435	3405	\
duke@435	3406	/* new oopmap storage allocation */ \
duke@435	3407	develop(intx, MinOopMapAllocation, 8, \
duke@435	3408	"Minimum number of OopMap entries in an OopMapSet") \
duke@435	3409	\
duke@435	3410	/* Background Compilation */ \
duke@435	3411	develop(intx, LongCompileThreshold, 50, \
duke@435	3412	"Used with +TraceLongCompiles") \
duke@435	3413	\
duke@435	3414	product(intx, StarvationMonitorInterval, 200, \
duke@435	3415	"Pause between each check in ms") \
duke@435	3416	\
duke@435	3417	/* recompilation */ \
duke@435	3418	product_pd(intx, CompileThreshold, \
duke@435	3419	"number of interpreted method invocations before (re-)compiling") \
duke@435	3420	\
duke@435	3421	product_pd(intx, BackEdgeThreshold, \
duke@435	3422	"Interpreter Back edge threshold at which an OSR compilation is invoked")\
duke@435	3423	\
iveresov@2138	3424	product(intx, Tier0InvokeNotifyFreqLog, 7, \
iveresov@2138	3425	"Interpreter (tier 0) invocation notification frequency.") \
iveresov@2138	3426	\
iveresov@2138	3427	product(intx, Tier2InvokeNotifyFreqLog, 11, \
iveresov@2138	3428	"C1 without MDO (tier 2) invocation notification frequency.") \
iveresov@2138	3429	\
iveresov@2138	3430	product(intx, Tier3InvokeNotifyFreqLog, 10, \
iveresov@2138	3431	"C1 with MDO profiling (tier 3) invocation notification " \
iveresov@2138	3432	"frequency.") \
iveresov@2138	3433	\
iveresov@2138	3434	product(intx, Tier0BackedgeNotifyFreqLog, 10, \
iveresov@2138	3435	"Interpreter (tier 0) invocation notification frequency.") \
iveresov@2138	3436	\
iveresov@2138	3437	product(intx, Tier2BackedgeNotifyFreqLog, 14, \
iveresov@2138	3438	"C1 without MDO (tier 2) invocation notification frequency.") \
iveresov@2138	3439	\
iveresov@2138	3440	product(intx, Tier3BackedgeNotifyFreqLog, 13, \
iveresov@2138	3441	"C1 with MDO profiling (tier 3) invocation notification " \
iveresov@2138	3442	"frequency.") \
iveresov@2138	3443	\
iveresov@2138	3444	product(intx, Tier2CompileThreshold, 0, \
iveresov@2138	3445	"threshold at which tier 2 compilation is invoked") \
iveresov@2138	3446	\
iveresov@2138	3447	product(intx, Tier2BackEdgeThreshold, 0, \
iveresov@2138	3448	"Back edge threshold at which tier 2 compilation is invoked") \
iveresov@2138	3449	\
iveresov@2138	3450	product(intx, Tier3InvocationThreshold, 200, \
iveresov@2138	3451	"Compile if number of method invocations crosses this " \
iveresov@2138	3452	"threshold") \
iveresov@2138	3453	\
iveresov@2138	3454	product(intx, Tier3MinInvocationThreshold, 100, \
iveresov@2138	3455	"Minimum invocation to compile at tier 3") \
iveresov@2138	3456	\
iveresov@2138	3457	product(intx, Tier3CompileThreshold, 2000, \
iveresov@2138	3458	"Threshold at which tier 3 compilation is invoked (invocation " \
iveresov@2138	3459	"minimum must be satisfied.") \
iveresov@2138	3460	\
iveresov@2138	3461	product(intx, Tier3BackEdgeThreshold, 7000, \
iveresov@2138	3462	"Back edge threshold at which tier 3 OSR compilation is invoked") \
iveresov@2138	3463	\
iveresov@2138	3464	product(intx, Tier4InvocationThreshold, 5000, \
iveresov@2138	3465	"Compile if number of method invocations crosses this " \
iveresov@2138	3466	"threshold") \
iveresov@2138	3467	\
iveresov@2138	3468	product(intx, Tier4MinInvocationThreshold, 600, \
iveresov@2138	3469	"Minimum invocation to compile at tier 4") \
iveresov@2138	3470	\
iveresov@2138	3471	product(intx, Tier4CompileThreshold, 15000, \
iveresov@2138	3472	"Threshold at which tier 4 compilation is invoked (invocation " \
iveresov@2138	3473	"minimum must be satisfied.") \
iveresov@2138	3474	\
iveresov@2138	3475	product(intx, Tier4BackEdgeThreshold, 40000, \
iveresov@2138	3476	"Back edge threshold at which tier 4 OSR compilation is invoked") \
iveresov@2138	3477	\
iveresov@2138	3478	product(intx, Tier3DelayOn, 5, \
iveresov@2138	3479	"If C2 queue size grows over this amount per compiler thread " \
iveresov@2138	3480	"stop compiling at tier 3 and start compiling at tier 2") \
iveresov@2138	3481	\
iveresov@2138	3482	product(intx, Tier3DelayOff, 2, \
iveresov@2138	3483	"If C2 queue size is less than this amount per compiler thread " \
iveresov@2138	3484	"allow methods compiled at tier 2 transition to tier 3") \
iveresov@2138	3485	\
iveresov@2138	3486	product(intx, Tier3LoadFeedback, 5, \
iveresov@2138	3487	"Tier 3 thresholds will increase twofold when C1 queue size " \
iveresov@2138	3488	"reaches this amount per compiler thread") \
iveresov@2138	3489	\
iveresov@2138	3490	product(intx, Tier4LoadFeedback, 3, \
iveresov@2138	3491	"Tier 4 thresholds will increase twofold when C2 queue size " \
iveresov@2138	3492	"reaches this amount per compiler thread") \
iveresov@2138	3493	\
iveresov@2138	3494	product(intx, TieredCompileTaskTimeout, 50, \
iveresov@2138	3495	"Kill compile task if method was not used within " \
iveresov@2138	3496	"given timeout in milliseconds") \
iveresov@2138	3497	\
iveresov@2138	3498	product(intx, TieredStopAtLevel, 4, \
iveresov@2138	3499	"Stop at given compilation level") \
iveresov@2138	3500	\
iveresov@2138	3501	product(intx, Tier0ProfilingStartPercentage, 200, \
iveresov@2138	3502	"Start profiling in interpreter if the counters exceed tier 3" \
iveresov@2138	3503	"thresholds by the specified percentage") \
iveresov@2138	3504	\
iveresov@2138	3505	product(intx, TieredRateUpdateMinTime, 1, \
iveresov@2138	3506	"Minimum rate sampling interval (in milliseconds)") \
iveresov@2138	3507	\
iveresov@2138	3508	product(intx, TieredRateUpdateMaxTime, 25, \
iveresov@2138	3509	"Maximum rate sampling interval (in milliseconds)") \
duke@435	3510	\
duke@435	3511	product_pd(bool, TieredCompilation, \
iveresov@2138	3512	"Enable tiered compilation") \
iveresov@2138	3513	\
iveresov@2138	3514	product(bool, PrintTieredEvents, false, \
iveresov@2138	3515	"Print tiered events notifications") \
duke@435	3516	\
duke@435	3517	product(bool, StressTieredRuntime, false, \
duke@435	3518	"Alternate client and server compiler on compile requests") \
duke@435	3519	\
duke@435	3520	product_pd(intx, OnStackReplacePercentage, \
duke@435	3521	"NON_TIERED number of method invocations/branches (expressed as %"\
duke@435	3522	"of CompileThreshold) before (re-)compiling OSR code") \
duke@435	3523	\
duke@435	3524	product(intx, InterpreterProfilePercentage, 33, \
duke@435	3525	"NON_TIERED number of method invocations/branches (expressed as %"\
duke@435	3526	"of CompileThreshold) before profiling in the interpreter") \
duke@435	3527	\
duke@435	3528	develop(intx, MaxRecompilationSearchLength, 10, \
duke@435	3529	"max. # frames to inspect searching for recompilee") \
duke@435	3530	\
duke@435	3531	develop(intx, MaxInterpretedSearchLength, 3, \
duke@435	3532	"max. # interp. frames to skip when searching for recompilee") \
duke@435	3533	\
duke@435	3534	develop(intx, DesiredMethodLimit, 8000, \
duke@435	3535	"desired max. method size (in bytecodes) after inlining") \
duke@435	3536	\
duke@435	3537	develop(intx, HugeMethodLimit, 8000, \
duke@435	3538	"don't compile methods larger than this if " \
duke@435	3539	"+DontCompileHugeMethods") \
duke@435	3540	\
duke@435	3541	/* New JDK 1.4 reflection implementation */ \
duke@435	3542	\
duke@435	3543	develop(bool, UseNewReflection, true, \
duke@435	3544	"Temporary flag for transition to reflection based on dynamic " \
duke@435	3545	"bytecode generation in 1.4; can no longer be turned off in 1.4 " \
duke@435	3546	"JDK, and is unneeded in 1.3 JDK, but marks most places VM " \
duke@435	3547	"changes were needed") \
duke@435	3548	\
duke@435	3549	develop(bool, VerifyReflectionBytecodes, false, \
duke@435	3550	"Force verification of 1.4 reflection bytecodes. Does not work " \
duke@435	3551	"in situations like that described in 4486457 or for " \
duke@435	3552	"constructors generated for serialization, so can not be enabled "\
duke@435	3553	"in product.") \
duke@435	3554	\
duke@435	3555	product(bool, ReflectionWrapResolutionErrors, true, \
duke@435	3556	"Temporary flag for transition to AbstractMethodError wrapped " \
duke@435	3557	"in InvocationTargetException. See 6531596") \
duke@435	3558	\
duke@435	3559	\
duke@435	3560	develop(intx, FastSuperclassLimit, 8, \
duke@435	3561	"Depth of hardwired instanceof accelerator array") \
duke@435	3562	\
duke@435	3563	/* Properties for Java libraries */ \
duke@435	3564	\
duke@435	3565	product(intx, MaxDirectMemorySize, -1, \
duke@435	3566	"Maximum total size of NIO direct-buffer allocations") \
duke@435	3567	\
duke@435	3568	/* temporary developer defined flags */ \
duke@435	3569	\
duke@435	3570	diagnostic(bool, UseNewCode, false, \
duke@435	3571	"Testing Only: Use the new version while testing") \
duke@435	3572	\
duke@435	3573	diagnostic(bool, UseNewCode2, false, \
duke@435	3574	"Testing Only: Use the new version while testing") \
duke@435	3575	\
duke@435	3576	diagnostic(bool, UseNewCode3, false, \
duke@435	3577	"Testing Only: Use the new version while testing") \
duke@435	3578	\
duke@435	3579	/* flags for performance data collection */ \
duke@435	3580	\
bobv@2508	3581	NOT_EMBEDDED(product(bool, UsePerfData, true, \
duke@435	3582	"Flag to disable jvmstat instrumentation for performance testing" \
bobv@2508	3583	"and problem isolation purposes.")) \
bobv@2508	3584	\
bobv@2508	3585	EMBEDDED_ONLY(product(bool, UsePerfData, false, \
bobv@2508	3586	"Flag to disable jvmstat instrumentation for performance testing" \
bobv@2508	3587	"and problem isolation purposes.")) \
duke@435	3588	\
duke@435	3589	product(bool, PerfDataSaveToFile, false, \
duke@435	3590	"Save PerfData memory to hsperfdata_<pid> file on exit") \
duke@435	3591	\
duke@435	3592	product(ccstr, PerfDataSaveFile, NULL, \
duke@435	3593	"Save PerfData memory to the specified absolute pathname," \
duke@435	3594	"%p in the file name if present will be replaced by pid") \
duke@435	3595	\
duke@435	3596	product(intx, PerfDataSamplingInterval, 50 /*ms*/, \
duke@435	3597	"Data sampling interval in milliseconds") \
duke@435	3598	\
duke@435	3599	develop(bool, PerfTraceDataCreation, false, \
duke@435	3600	"Trace creation of Performance Data Entries") \
duke@435	3601	\
duke@435	3602	develop(bool, PerfTraceMemOps, false, \
duke@435	3603	"Trace PerfMemory create/attach/detach calls") \
duke@435	3604	\
duke@435	3605	product(bool, PerfDisableSharedMem, false, \
duke@435	3606	"Store performance data in standard memory") \
duke@435	3607	\
duke@435	3608	product(intx, PerfDataMemorySize, 32*K, \
duke@435	3609	"Size of performance data memory region. Will be rounded " \
duke@435	3610	"up to a multiple of the native os page size.") \
duke@435	3611	\
duke@435	3612	product(intx, PerfMaxStringConstLength, 1024, \
duke@435	3613	"Maximum PerfStringConstant string length before truncation") \
duke@435	3614	\
duke@435	3615	product(bool, PerfAllowAtExitRegistration, false, \
duke@435	3616	"Allow registration of atexit() methods") \
duke@435	3617	\
duke@435	3618	product(bool, PerfBypassFileSystemCheck, false, \
duke@435	3619	"Bypass Win32 file system criteria checks (Windows Only)") \
duke@435	3620	\
duke@435	3621	product(intx, UnguardOnExecutionViolation, 0, \
duke@435	3622	"Unguard page and retry on no-execute fault (Win32 only)" \
duke@435	3623	"0=off, 1=conservative, 2=aggressive") \
duke@435	3624	\
duke@435	3625	/* Serviceability Support */ \
duke@435	3626	\
duke@435	3627	product(bool, ManagementServer, false, \
duke@435	3628	"Create JMX Management Server") \
duke@435	3629	\
duke@435	3630	product(bool, DisableAttachMechanism, false, \
duke@435	3631	"Disable mechanism that allows tools to attach to this VM") \
duke@435	3632	\
duke@435	3633	product(bool, StartAttachListener, false, \
duke@435	3634	"Always start Attach Listener at VM startup") \
duke@435	3635	\
duke@435	3636	manageable(bool, PrintConcurrentLocks, false, \
duke@435	3637	"Print java.util.concurrent locks in thread dump") \
duke@435	3638	\
kamg@2525	3639	product(bool, TransmitErrorReport, false, \
kamg@2515	3640	"Enable error report transmission on erroneous termination") \
kamg@2515	3641	\
kamg@2525	3642	product(ccstr, ErrorReportServer, NULL, \
kamg@2515	3643	"Override built-in error report server address") \
kamg@2515	3644	\
duke@435	3645	/* Shared spaces */ \
duke@435	3646	\
duke@435	3647	product(bool, UseSharedSpaces, true, \
duke@435	3648	"Use shared spaces in the permanent generation") \
duke@435	3649	\
duke@435	3650	product(bool, RequireSharedSpaces, false, \
duke@435	3651	"Require shared spaces in the permanent generation") \
duke@435	3652	\
duke@435	3653	product(bool, DumpSharedSpaces, false, \
duke@435	3654	"Special mode: JVM reads a class list, loads classes, builds " \
duke@435	3655	"shared spaces, and dumps the shared spaces to a file to be " \
duke@435	3656	"used in future JVM runs.") \
duke@435	3657	\
duke@435	3658	product(bool, PrintSharedSpaces, false, \
duke@435	3659	"Print usage of shared spaces") \
duke@435	3660	\
duke@435	3661	product(uintx, SharedDummyBlockSize, 512*M, \
duke@435	3662	"Size of dummy block used to shift heap addresses (in bytes)") \
duke@435	3663	\
iveresov@2230	3664	product(uintx, SharedReadWriteSize, NOT_LP64(12*M) LP64_ONLY(13*M), \
duke@435	3665	"Size of read-write space in permanent generation (in bytes)") \
duke@435	3666	\
jcoomes@1345	3667	product(uintx, SharedReadOnlySize, 10*M, \
duke@435	3668	"Size of read-only space in permanent generation (in bytes)") \
duke@435	3669	\
coleenp@2549	3670	product(uintx, SharedMiscDataSize, NOT_LP64(4*M) LP64_ONLY(5*M), \
duke@435	3671	"Size of the shared data area adjacent to the heap (in bytes)") \
duke@435	3672	\
duke@435	3673	product(uintx, SharedMiscCodeSize, 4*M, \
duke@435	3674	"Size of the shared code area adjacent to the heap (in bytes)") \
duke@435	3675	\
duke@435	3676	diagnostic(bool, SharedOptimizeColdStart, true, \
duke@435	3677	"At dump time, order shared objects to achieve better " \
duke@435	3678	"cold startup time.") \
duke@435	3679	\
duke@435	3680	develop(intx, SharedOptimizeColdStartPolicy, 2, \
duke@435	3681	"Reordering policy for SharedOptimizeColdStart " \
duke@435	3682	"0=favor classload-time locality, 1=balanced, " \
duke@435	3683	"2=favor runtime locality") \
duke@435	3684	\
duke@435	3685	diagnostic(bool, SharedSkipVerify, false, \
duke@435	3686	"Skip assert() and verify() which page-in unwanted shared " \
duke@435	3687	"objects. ") \
duke@435	3688	\
twisti@2698	3689	diagnostic(bool, EnableInvokeDynamic, true, \
twisti@2698	3690	"support JSR 292 (method handles, invokedynamic, " \
twisti@2698	3691	"anonymous classes") \
twisti@2698	3692	\
jrose@866	3693	product(bool, AnonymousClasses, false, \
twisti@2698	3694	"support sun.misc.Unsafe.defineAnonymousClass (deprecated)") \
jrose@866	3695	\
jrose@1340	3696	experimental(bool, EnableMethodHandles, false, \
twisti@2698	3697	"support method handles (deprecated)") \
jrose@1145	3698	\
jrose@1145	3699	diagnostic(intx, MethodHandlePushLimit, 3, \
jrose@1145	3700	"number of additional stack slots a method handle may push") \
jrose@1145	3701	\
jrose@1145	3702	develop(bool, TraceMethodHandles, false, \
jrose@1145	3703	"trace internal method handle operations") \
jrose@1145	3704	\
jrose@1145	3705	diagnostic(bool, VerifyMethodHandles, trueInDebug, \
jrose@1145	3706	"perform extra checks when constructing method handles") \
jrose@1145	3707	\
jrose@1145	3708	diagnostic(bool, OptimizeMethodHandles, true, \
jrose@1145	3709	"when constructing method handles, try to improve them") \
jrose@1145	3710	\
jrose@1608	3711	experimental(bool, TrustFinalNonStaticFields, false, \
jrose@1608	3712	"trust final non-static declarations for constant folding") \
jrose@1608	3713	\
jrose@2742	3714	experimental(bool, AllowInvokeGeneric, true, \
jrose@2638	3715	"accept MethodHandle.invoke and MethodHandle.invokeGeneric " \
jrose@2638	3716	"as equivalent methods") \
jrose@2638	3717	\
jrose@1161	3718	develop(bool, TraceInvokeDynamic, false, \
jrose@1161	3719	"trace internal invoke dynamic operations") \
jrose@1161	3720	\
duke@435	3721	diagnostic(bool, PauseAtStartup, false, \
duke@435	3722	"Causes the VM to pause at startup time and wait for the pause " \
duke@435	3723	"file to be removed (default: ./vm.paused.<pid>)") \
duke@435	3724	\
duke@435	3725	diagnostic(ccstr, PauseAtStartupFile, NULL, \
duke@435	3726	"The file to create and for whose removal to await when pausing " \
duke@435	3727	"at startup. (default: ./vm.paused.<pid>)") \
duke@435	3728	\
sla@2584	3729	diagnostic(bool, PauseAtExit, false, \
sla@2584	3730	"Pause and wait for keypress on exit if a debugger is attached") \
sla@2584	3731	\
duke@435	3732	product(bool, ExtendedDTraceProbes, false, \
duke@435	3733	"Enable performance-impacting dtrace probes") \
duke@435	3734	\
duke@435	3735	product(bool, DTraceMethodProbes, false, \
duke@435	3736	"Enable dtrace probes for method-entry and method-exit") \
duke@435	3737	\
duke@435	3738	product(bool, DTraceAllocProbes, false, \
duke@435	3739	"Enable dtrace probes for object allocation") \
duke@435	3740	\
duke@435	3741	product(bool, DTraceMonitorProbes, false, \
duke@435	3742	"Enable dtrace probes for monitor events") \
duke@435	3743	\
duke@435	3744	product(bool, RelaxAccessControlCheck, false, \
duke@435	3745	"Relax the access control checks in the verifier") \
duke@435	3746	\
kamg@551	3747	diagnostic(bool, PrintDTraceDOF, false, \
kamg@551	3748	"Print the DTrace DOF passed to the system for JSDT probes") \
kamg@551	3749	\
jcoomes@2660	3750	product(uintx, StringTableSize, 1009, \
jcoomes@2660	3751	"Number of buckets in the interned String table") \
jcoomes@2660	3752	\
xlu@884	3753	product(bool, UseVMInterruptibleIO, false, \
duke@435	3754	"(Unstable, Solaris-specific) Thread interrupt before or with " \
xlu@884	3755	"EINTR for I/O operations results in OS_INTRPT. The default value"\
xlu@884	3756	" of this flag is true for JDK 6 and earliers")
duke@435	3757
duke@435	3758	/*
duke@435	3759	* Macros for factoring of globals
duke@435	3760	*/
duke@435	3761
duke@435	3762	// Interface macros
duke@435	3763	#define DECLARE_PRODUCT_FLAG(type, name, value, doc) extern "C" type name;
duke@435	3764	#define DECLARE_PD_PRODUCT_FLAG(type, name, doc) extern "C" type name;
duke@435	3765	#define DECLARE_DIAGNOSTIC_FLAG(type, name, value, doc) extern "C" type name;
ysr@785	3766	#define DECLARE_EXPERIMENTAL_FLAG(type, name, value, doc) extern "C" type name;
duke@435	3767	#define DECLARE_MANAGEABLE_FLAG(type, name, value, doc) extern "C" type name;
duke@435	3768	#define DECLARE_PRODUCT_RW_FLAG(type, name, value, doc) extern "C" type name;
duke@435	3769	#ifdef PRODUCT
duke@435	3770	#define DECLARE_DEVELOPER_FLAG(type, name, value, doc) const type name = value;
duke@435	3771	#define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) const type name = pd_##name;
duke@435	3772	#define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc)
duke@435	3773	#else
duke@435	3774	#define DECLARE_DEVELOPER_FLAG(type, name, value, doc) extern "C" type name;
duke@435	3775	#define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) extern "C" type name;
duke@435	3776	#define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) extern "C" type name;
duke@435	3777	#endif
coleenp@548	3778	// Special LP64 flags, product only needed for now.
coleenp@548	3779	#ifdef _LP64
coleenp@548	3780	#define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) extern "C" type name;
coleenp@548	3781	#else
coleenp@548	3782	#define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) const type name = value;
coleenp@548	3783	#endif // _LP64
duke@435	3784
duke@435	3785	// Implementation macros
duke@435	3786	#define MATERIALIZE_PRODUCT_FLAG(type, name, value, doc) type name = value;
duke@435	3787	#define MATERIALIZE_PD_PRODUCT_FLAG(type, name, doc) type name = pd_##name;
duke@435	3788	#define MATERIALIZE_DIAGNOSTIC_FLAG(type, name, value, doc) type name = value;
ysr@785	3789	#define MATERIALIZE_EXPERIMENTAL_FLAG(type, name, value, doc) type name = value;
duke@435	3790	#define MATERIALIZE_MANAGEABLE_FLAG(type, name, value, doc) type name = value;
duke@435	3791	#define MATERIALIZE_PRODUCT_RW_FLAG(type, name, value, doc) type name = value;
duke@435	3792	#ifdef PRODUCT
duke@435	3793	#define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) /* flag name is constant */
duke@435	3794	#define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) /* flag name is constant */
duke@435	3795	#define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc)
duke@435	3796	#else
duke@435	3797	#define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) type name = value;
duke@435	3798	#define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) type name = pd_##name;
duke@435	3799	#define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) type name = value;
duke@435	3800	#endif
coleenp@548	3801	#ifdef _LP64
coleenp@548	3802	#define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) type name = value;
coleenp@548	3803	#else
coleenp@548	3804	#define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) /* flag is constant */
coleenp@548	3805	#endif // _LP64
duke@435	3806
ysr@785	3807	RUNTIME_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_EXPERIMENTAL_FLAG, DECLARE_NOTPRODUCT_FLAG, DECLARE_MANAGEABLE_FLAG, DECLARE_PRODUCT_RW_FLAG, DECLARE_LP64_PRODUCT_FLAG)
duke@435	3808
duke@435	3809	RUNTIME_OS_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_NOTPRODUCT_FLAG)
stefank@2314	3810
stefank@2314	3811	#endif // SHARE_VM_RUNTIME_GLOBALS_HPP