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src/share/vm/runtime/globals.hpp@d5d065957597 (annotated)

src/share/vm/runtime/globals.hpp

Fri, 03 Sep 2010 17:51:07 -0700

author

iveresov

date

Fri, 03 Sep 2010 17:51:07 -0700

changeset 2138

d5d065957597

parent 2104

b4099f5786da

child 2151

18c378513575

permissions

-rw-r--r--

6953144: Tiered compilation
Summary: Infrastructure for tiered compilation support (interpreter + c1 + c2) for 32 and 64 bit. Simple tiered policy implementation.
Reviewed-by: kvn, never, phh, twisti

duke@435	1	/*
trims@1907	2	* Copyright (c) 1997, 2010, 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
twisti@2047	25	#if !defined(COMPILER1) && !defined(COMPILER2) && !defined(SHARK)
duke@435	26	define_pd_global(bool, BackgroundCompilation, false);
duke@435	27	define_pd_global(bool, UseTLAB, false);
duke@435	28	define_pd_global(bool, CICompileOSR, false);
duke@435	29	define_pd_global(bool, UseTypeProfile, false);
duke@435	30	define_pd_global(bool, UseOnStackReplacement, false);
duke@435	31	define_pd_global(bool, InlineIntrinsics, false);
duke@435	32	define_pd_global(bool, PreferInterpreterNativeStubs, true);
duke@435	33	define_pd_global(bool, ProfileInterpreter, false);
duke@435	34	define_pd_global(bool, ProfileTraps, false);
duke@435	35	define_pd_global(bool, TieredCompilation, false);
duke@435	36
duke@435	37	define_pd_global(intx, CompileThreshold, 0);
duke@435	38	define_pd_global(intx, BackEdgeThreshold, 0);
duke@435	39
duke@435	40	define_pd_global(intx, OnStackReplacePercentage, 0);
duke@435	41	define_pd_global(bool, ResizeTLAB, false);
duke@435	42	define_pd_global(intx, FreqInlineSize, 0);
phh@1499	43	define_pd_global(intx, InlineSmallCode, 0);
duke@435	44	define_pd_global(intx, NewSizeThreadIncrease, 4*K);
duke@435	45	define_pd_global(intx, InlineClassNatives, true);
duke@435	46	define_pd_global(intx, InlineUnsafeOps, true);
duke@435	47	define_pd_global(intx, InitialCodeCacheSize, 160*K);
duke@435	48	define_pd_global(intx, ReservedCodeCacheSize, 32*M);
duke@435	49	define_pd_global(intx, CodeCacheExpansionSize, 32*K);
duke@435	50	define_pd_global(intx, CodeCacheMinBlockLength, 1);
duke@435	51	define_pd_global(uintx,PermSize, ScaleForWordSize(4*M));
duke@435	52	define_pd_global(uintx,MaxPermSize, ScaleForWordSize(64*M));
duke@435	53	define_pd_global(bool, NeverActAsServerClassMachine, true);
phh@1499	54	define_pd_global(uint64_t,MaxRAM, 1ULL*G);
duke@435	55	#define CI_COMPILER_COUNT 0
duke@435	56	#else
duke@435	57
duke@435	58	#ifdef COMPILER2
duke@435	59	#define CI_COMPILER_COUNT 2
duke@435	60	#else
duke@435	61	#define CI_COMPILER_COUNT 1
duke@435	62	#endif // COMPILER2
duke@435	63
duke@435	64	#endif // no compilers
duke@435	65
duke@435	66
duke@435	67	// string type aliases used only in this file
duke@435	68	typedef const char* ccstr;
duke@435	69	typedef const char* ccstrlist; // represents string arguments which accumulate
duke@435	70
duke@435	71	enum FlagValueOrigin {
duke@435	72	DEFAULT = 0,
duke@435	73	COMMAND_LINE = 1,
duke@435	74	ENVIRON_VAR = 2,
duke@435	75	CONFIG_FILE = 3,
duke@435	76	MANAGEMENT = 4,
duke@435	77	ERGONOMIC = 5,
duke@435	78	ATTACH_ON_DEMAND = 6,
duke@435	79	INTERNAL = 99
duke@435	80	};
duke@435	81
duke@435	82	struct Flag {
duke@435	83	const char *type;
duke@435	84	const char *name;
duke@435	85	void* addr;
duke@435	86	const char *kind;
duke@435	87	FlagValueOrigin origin;
duke@435	88
duke@435	89	// points to all Flags static array
duke@435	90	static Flag *flags;
duke@435	91
duke@435	92	// number of flags
duke@435	93	static size_t numFlags;
duke@435	94
duke@435	95	static Flag* find_flag(char* name, size_t length);
duke@435	96
duke@435	97	bool is_bool() const { return strcmp(type, "bool") == 0; }
duke@435	98	bool get_bool() const { return *((bool*) addr); }
duke@435	99	void set_bool(bool value) { *((bool*) addr) = value; }
duke@435	100
duke@435	101	bool is_intx() const { return strcmp(type, "intx") == 0; }
duke@435	102	intx get_intx() const { return *((intx*) addr); }
duke@435	103	void set_intx(intx value) { *((intx*) addr) = value; }
duke@435	104
duke@435	105	bool is_uintx() const { return strcmp(type, "uintx") == 0; }
duke@435	106	uintx get_uintx() const { return *((uintx*) addr); }
duke@435	107	void set_uintx(uintx value) { *((uintx*) addr) = value; }
duke@435	108
phh@1499	109	bool is_uint64_t() const { return strcmp(type, "uint64_t") == 0; }
phh@1499	110	uint64_t get_uint64_t() const { return *((uint64_t*) addr); }
phh@1499	111	void set_uint64_t(uint64_t value) { *((uint64_t*) addr) = value; }
phh@1499	112
duke@435	113	bool is_double() const { return strcmp(type, "double") == 0; }
duke@435	114	double get_double() const { return *((double*) addr); }
duke@435	115	void set_double(double value) { *((double*) addr) = value; }
duke@435	116
duke@435	117	bool is_ccstr() const { return strcmp(type, "ccstr") == 0 || strcmp(type, "ccstrlist") == 0; }
duke@435	118	bool ccstr_accumulates() const { return strcmp(type, "ccstrlist") == 0; }
duke@435	119	ccstr get_ccstr() const { return *((ccstr*) addr); }
duke@435	120	void set_ccstr(ccstr value) { *((ccstr*) addr) = value; }
duke@435	121
duke@435	122	bool is_unlocker() const;
duke@435	123	bool is_unlocked() const;
duke@435	124	bool is_writeable() const;
duke@435	125	bool is_external() const;
duke@435	126
duke@435	127	void print_on(outputStream* st);
duke@435	128	void print_as_flag(outputStream* st);
duke@435	129	};
duke@435	130
duke@435	131	// debug flags control various aspects of the VM and are global accessible
duke@435	132
duke@435	133	// use FlagSetting to temporarily change some debug flag
duke@435	134	// e.g. FlagSetting fs(DebugThisAndThat, true);
duke@435	135	// restored to previous value upon leaving scope
duke@435	136	class FlagSetting {
duke@435	137	bool val;
duke@435	138	bool* flag;
duke@435	139	public:
duke@435	140	FlagSetting(bool& fl, bool newValue) { flag = &fl; val = fl; fl = newValue; }
duke@435	141	~FlagSetting() { *flag = val; }
duke@435	142	};
duke@435	143
duke@435	144
duke@435	145	class CounterSetting {
duke@435	146	intx* counter;
duke@435	147	public:
duke@435	148	CounterSetting(intx* cnt) { counter = cnt; (*counter)++; }
duke@435	149	~CounterSetting() { (*counter)--; }
duke@435	150	};
duke@435	151
duke@435	152
duke@435	153	class IntFlagSetting {
duke@435	154	intx val;
duke@435	155	intx* flag;
duke@435	156	public:
duke@435	157	IntFlagSetting(intx& fl, intx newValue) { flag = &fl; val = fl; fl = newValue; }
duke@435	158	~IntFlagSetting() { *flag = val; }
duke@435	159	};
duke@435	160
duke@435	161
duke@435	162	class DoubleFlagSetting {
duke@435	163	double val;
duke@435	164	double* flag;
duke@435	165	public:
duke@435	166	DoubleFlagSetting(double& fl, double newValue) { flag = &fl; val = fl; fl = newValue; }
duke@435	167	~DoubleFlagSetting() { *flag = val; }
duke@435	168	};
duke@435	169
duke@435	170
duke@435	171	class CommandLineFlags {
duke@435	172	public:
duke@435	173	static bool boolAt(char* name, size_t len, bool* value);
duke@435	174	static bool boolAt(char* name, bool* value) { return boolAt(name, strlen(name), value); }
duke@435	175	static bool boolAtPut(char* name, size_t len, bool* value, FlagValueOrigin origin);
duke@435	176	static bool boolAtPut(char* name, bool* value, FlagValueOrigin origin) { return boolAtPut(name, strlen(name), value, origin); }
duke@435	177
duke@435	178	static bool intxAt(char* name, size_t len, intx* value);
duke@435	179	static bool intxAt(char* name, intx* value) { return intxAt(name, strlen(name), value); }
duke@435	180	static bool intxAtPut(char* name, size_t len, intx* value, FlagValueOrigin origin);
duke@435	181	static bool intxAtPut(char* name, intx* value, FlagValueOrigin origin) { return intxAtPut(name, strlen(name), value, origin); }
duke@435	182
duke@435	183	static bool uintxAt(char* name, size_t len, uintx* value);
duke@435	184	static bool uintxAt(char* name, uintx* value) { return uintxAt(name, strlen(name), value); }
duke@435	185	static bool uintxAtPut(char* name, size_t len, uintx* value, FlagValueOrigin origin);
duke@435	186	static bool uintxAtPut(char* name, uintx* value, FlagValueOrigin origin) { return uintxAtPut(name, strlen(name), value, origin); }
duke@435	187
phh@1499	188	static bool uint64_tAt(char* name, size_t len, uint64_t* value);
phh@1499	189	static bool uint64_tAt(char* name, uint64_t* value) { return uint64_tAt(name, strlen(name), value); }
phh@1499	190	static bool uint64_tAtPut(char* name, size_t len, uint64_t* value, FlagValueOrigin origin);
phh@1499	191	static bool uint64_tAtPut(char* name, uint64_t* value, FlagValueOrigin origin) { return uint64_tAtPut(name, strlen(name), value, origin); }
phh@1499	192
duke@435	193	static bool doubleAt(char* name, size_t len, double* value);
duke@435	194	static bool doubleAt(char* name, double* value) { return doubleAt(name, strlen(name), value); }
duke@435	195	static bool doubleAtPut(char* name, size_t len, double* value, FlagValueOrigin origin);
duke@435	196	static bool doubleAtPut(char* name, double* value, FlagValueOrigin origin) { return doubleAtPut(name, strlen(name), value, origin); }
duke@435	197
duke@435	198	static bool ccstrAt(char* name, size_t len, ccstr* value);
duke@435	199	static bool ccstrAt(char* name, ccstr* value) { return ccstrAt(name, strlen(name), value); }
duke@435	200	static bool ccstrAtPut(char* name, size_t len, ccstr* value, FlagValueOrigin origin);
duke@435	201	static bool ccstrAtPut(char* name, ccstr* value, FlagValueOrigin origin) { return ccstrAtPut(name, strlen(name), value, origin); }
duke@435	202
duke@435	203	// Returns false if name is not a command line flag.
duke@435	204	static bool wasSetOnCmdline(const char* name, bool* value);
duke@435	205	static void printSetFlags();
duke@435	206
kvn@1585	207	static void printFlags();
duke@435	208
duke@435	209	static void verify() PRODUCT_RETURN;
duke@435	210	};
duke@435	211
duke@435	212	// use this for flags that are true by default in the debug version but
duke@435	213	// false in the optimized version, and vice versa
duke@435	214	#ifdef ASSERT
duke@435	215	#define trueInDebug true
duke@435	216	#define falseInDebug false
duke@435	217	#else
duke@435	218	#define trueInDebug false
duke@435	219	#define falseInDebug true
duke@435	220	#endif
duke@435	221
duke@435	222	// use this for flags that are true per default in the product build
duke@435	223	// but false in development builds, and vice versa
duke@435	224	#ifdef PRODUCT
duke@435	225	#define trueInProduct true
duke@435	226	#define falseInProduct false
duke@435	227	#else
duke@435	228	#define trueInProduct false
duke@435	229	#define falseInProduct true
duke@435	230	#endif
duke@435	231
duke@435	232	// use this for flags that are true per default in the tiered build
duke@435	233	// but false in non-tiered builds, and vice versa
duke@435	234	#ifdef TIERED
duke@435	235	#define trueInTiered true
duke@435	236	#define falseInTiered false
duke@435	237	#else
duke@435	238	#define trueInTiered false
duke@435	239	#define falseInTiered true
duke@435	240	#endif
duke@435	241
duke@435	242	// develop flags are settable / visible only during development and are constant in the PRODUCT version
duke@435	243	// product flags are always settable / visible
duke@435	244	// notproduct flags are settable / visible only during development and are not declared in the PRODUCT version
duke@435	245
duke@435	246	// A flag must be declared with one of the following types:
duke@435	247	// bool, intx, uintx, ccstr.
duke@435	248	// The type "ccstr" is an alias for "const char*" and is used
duke@435	249	// only in this file, because the macrology requires single-token type names.
duke@435	250
duke@435	251	// Note: Diagnostic options not meant for VM tuning or for product modes.
duke@435	252	// They are to be used for VM quality assurance or field diagnosis
duke@435	253	// of VM bugs. They are hidden so that users will not be encouraged to
duke@435	254	// try them as if they were VM ordinary execution options. However, they
duke@435	255	// are available in the product version of the VM. Under instruction
duke@435	256	// from support engineers, VM customers can turn them on to collect
duke@435	257	// diagnostic information about VM problems. To use a VM diagnostic
duke@435	258	// option, you must first specify +UnlockDiagnosticVMOptions.
duke@435	259	// (This master switch also affects the behavior of -Xprintflags.)
ysr@785	260	//
ysr@785	261	// experimental flags are in support of features that are not
ysr@785	262	// part of the officially supported product, but are available
ysr@785	263	// for experimenting with. They could, for example, be performance
ysr@785	264	// features that may not have undergone full or rigorous QA, but which may
ysr@785	265	// help performance in some cases and released for experimentation
ysr@785	266	// by the community of users and developers. This flag also allows one to
ysr@785	267	// be able to build a fully supported product that nonetheless also
ysr@785	268	// ships with some unsupported, lightly tested, experimental features.
ysr@785	269	// Like the UnlockDiagnosticVMOptions flag above, there is a corresponding
ysr@785	270	// UnlockExperimentalVMOptions flag, which allows the control and
ysr@785	271	// modification of the experimental flags.
ysr@785	272	//
duke@435	273	// manageable flags are writeable external product flags.
duke@435	274	// They are dynamically writeable through the JDK management interface
duke@435	275	// (com.sun.management.HotSpotDiagnosticMXBean API) and also through JConsole.
duke@435	276	// These flags are external exported interface (see CCC). The list of
duke@435	277	// manageable flags can be queried programmatically through the management
duke@435	278	// interface.
duke@435	279	//
duke@435	280	// A flag can be made as "manageable" only if
duke@435	281	// - the flag is defined in a CCC as an external exported interface.
duke@435	282	// - the VM implementation supports dynamic setting of the flag.
duke@435	283	// This implies that the VM must *always* query the flag variable
duke@435	284	// and not reuse state related to the flag state at any given time.
duke@435	285	// - you want the flag to be queried programmatically by the customers.
duke@435	286	//
duke@435	287	// product_rw flags are writeable internal product flags.
duke@435	288	// They are like "manageable" flags but for internal/private use.
duke@435	289	// The list of product_rw flags are internal/private flags which
duke@435	290	// may be changed/removed in a future release. It can be set
duke@435	291	// through the management interface to get/set value
duke@435	292	// when the name of flag is supplied.
duke@435	293	//
duke@435	294	// A flag can be made as "product_rw" only if
duke@435	295	// - the VM implementation supports dynamic setting of the flag.
duke@435	296	// This implies that the VM must *always* query the flag variable
duke@435	297	// and not reuse state related to the flag state at any given time.
duke@435	298	//
duke@435	299	// Note that when there is a need to support develop flags to be writeable,
duke@435	300	// it can be done in the same way as product_rw.
duke@435	301
ysr@785	302	#define RUNTIME_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw, lp64_product) \
coleenp@548	303	\
coleenp@548	304	lp64_product(bool, UseCompressedOops, false, \
coleenp@548	305	"Use 32-bit object references in 64-bit VM. " \
coleenp@548	306	"lp64_product means flag is always constant in 32 bit VM") \
duke@435	307	\
kvn@1077	308	notproduct(bool, CheckCompressedOops, true, \
kvn@1077	309	"generate checks in encoding/decoding code in debug VM") \
kvn@1077	310	\
kvn@1077	311	product_pd(uintx, HeapBaseMinAddress, \
kvn@1077	312	"OS specific low limit for heap base address") \
kvn@1077	313	\
kvn@1077	314	diagnostic(bool, PrintCompressedOopsMode, false, \
kvn@1077	315	"Print compressed oops base address and encoding mode") \
coleenp@760	316	\
kvn@1926	317	lp64_product(intx, ObjectAlignmentInBytes, 8, \
kvn@1926	318	"Default object alignment in bytes, 8 is minimum") \
kvn@1926	319	\
duke@435	320	/* UseMembar is theoretically a temp flag used for memory barrier \
duke@435	321	* removal testing. It was supposed to be removed before FCS but has \
duke@435	322	* been re-added (see 6401008) */ \
duke@435	323	product(bool, UseMembar, false, \
duke@435	324	"(Unstable) Issues membars on thread state transitions") \
duke@435	325	\
ysr@1873	326	/* Temporary: See 6948537 */ \
ysr@1873	327	experimental(bool, UseMemSetInBOT, true, \
ysr@1873	328	"(Unstable) uses memset in BOT updates in GC code") \
ysr@1873	329	\
duke@435	330	diagnostic(bool, UnlockDiagnosticVMOptions, trueInDebug, \
ysr@785	331	"Enable normal processing of flags relating to field diagnostics")\
ysr@785	332	\
ysr@785	333	experimental(bool, UnlockExperimentalVMOptions, false, \
ysr@785	334	"Enable normal processing of flags relating to experimental features")\
duke@435	335	\
duke@435	336	product(bool, JavaMonitorsInStackTrace, true, \
duke@435	337	"Print info. about Java monitor locks when the stacks are dumped")\
duke@435	338	\
duke@435	339	product_pd(bool, UseLargePages, \
duke@435	340	"Use large page memory") \
duke@435	341	\
jmasa@824	342	product_pd(bool, UseLargePagesIndividualAllocation, \
jmasa@824	343	"Allocate large pages individually for better affinity") \
jmasa@824	344	\
jmasa@824	345	develop(bool, LargePagesIndividualAllocationInjectError, false, \
jmasa@824	346	"Fail large pages individual allocation") \
jmasa@824	347	\
duke@435	348	develop(bool, TracePageSizes, false, \
duke@435	349	"Trace page size selection and usage.") \
duke@435	350	\
duke@435	351	product(bool, UseNUMA, false, \
duke@435	352	"Use NUMA if available") \
duke@435	353	\
iveresov@897	354	product(bool, ForceNUMA, false, \
iveresov@897	355	"Force NUMA optimizations on single-node/UMA systems") \
iveresov@897	356	\
duke@435	357	product(intx, NUMAChunkResizeWeight, 20, \
duke@435	358	"Percentage (0-100) used to weight the current sample when " \
duke@435	359	"computing exponentially decaying average for " \
duke@435	360	"AdaptiveNUMAChunkSizing") \
duke@435	361	\
duke@435	362	product(intx, NUMASpaceResizeRate, 1*G, \
duke@435	363	"Do not reallocate more that this amount per collection") \
duke@435	364	\
duke@435	365	product(bool, UseAdaptiveNUMAChunkSizing, true, \
duke@435	366	"Enable adaptive chunk sizing for NUMA") \
duke@435	367	\
duke@435	368	product(bool, NUMAStats, false, \
duke@435	369	"Print NUMA stats in detailed heap information") \
duke@435	370	\
duke@435	371	product(intx, NUMAPageScanRate, 256, \
duke@435	372	"Maximum number of pages to include in the page scan procedure") \
duke@435	373	\
duke@435	374	product_pd(bool, NeedsDeoptSuspend, \
duke@435	375	"True for register window machines (sparc/ia64)") \
duke@435	376	\
duke@435	377	product(intx, UseSSE, 99, \
duke@435	378	"Highest supported SSE instructions set on x86/x64") \
duke@435	379	\
duke@435	380	product(uintx, LargePageSizeInBytes, 0, \
duke@435	381	"Large page size (0 to let VM choose the page size") \
duke@435	382	\
duke@435	383	product(uintx, LargePageHeapSizeThreshold, 128*M, \
duke@435	384	"Use large pages if max heap is at least this big") \
duke@435	385	\
duke@435	386	product(bool, ForceTimeHighResolution, false, \
duke@435	387	"Using high time resolution(For Win32 only)") \
duke@435	388	\
duke@435	389	develop(bool, TraceItables, false, \
duke@435	390	"Trace initialization and use of itables") \
duke@435	391	\
duke@435	392	develop(bool, TracePcPatching, false, \
duke@435	393	"Trace usage of frame::patch_pc") \
duke@435	394	\
duke@435	395	develop(bool, TraceJumps, false, \
duke@435	396	"Trace assembly jumps in thread ring buffer") \
duke@435	397	\
duke@435	398	develop(bool, TraceRelocator, false, \
duke@435	399	"Trace the bytecode relocator") \
duke@435	400	\
duke@435	401	develop(bool, TraceLongCompiles, false, \
duke@435	402	"Print out every time compilation is longer than " \
duke@435	403	"a given threashold") \
duke@435	404	\
duke@435	405	develop(bool, SafepointALot, false, \
duke@435	406	"Generates a lot of safepoints. Works with " \
duke@435	407	"GuaranteedSafepointInterval") \
duke@435	408	\
duke@435	409	product_pd(bool, BackgroundCompilation, \
duke@435	410	"A thread requesting compilation is not blocked during " \
duke@435	411	"compilation") \
duke@435	412	\
duke@435	413	product(bool, PrintVMQWaitTime, false, \
duke@435	414	"Prints out the waiting time in VM operation queue") \
duke@435	415	\
duke@435	416	develop(bool, BailoutToInterpreterForThrows, false, \
duke@435	417	"Compiled methods which throws/catches exceptions will be " \
duke@435	418	"deopt and intp.") \
duke@435	419	\
duke@435	420	develop(bool, NoYieldsInMicrolock, false, \
duke@435	421	"Disable yields in microlock") \
duke@435	422	\
duke@435	423	develop(bool, TraceOopMapGeneration, false, \
duke@435	424	"Shows oopmap generation") \
duke@435	425	\
duke@435	426	product(bool, MethodFlushing, true, \
duke@435	427	"Reclamation of zombie and not-entrant methods") \
duke@435	428	\
duke@435	429	develop(bool, VerifyStack, false, \
duke@435	430	"Verify stack of each thread when it is entering a runtime call") \
duke@435	431	\
duke@435	432	develop(bool, ForceUnreachable, false, \
duke@435	433	"(amd64) Make all non code cache addresses to be unreachable with rip-rel forcing use of 64bit literal fixups") \
duke@435	434	\
duke@435	435	notproduct(bool, StressDerivedPointers, false, \
duke@435	436	"Force scavenge when a derived pointers is detected on stack " \
duke@435	437	"after rtm call") \
duke@435	438	\
duke@435	439	develop(bool, TraceDerivedPointers, false, \
duke@435	440	"Trace traversal of derived pointers on stack") \
duke@435	441	\
duke@435	442	notproduct(bool, TraceCodeBlobStacks, false, \
duke@435	443	"Trace stack-walk of codeblobs") \
duke@435	444	\
duke@435	445	product(bool, PrintJNIResolving, false, \
duke@435	446	"Used to implement -v:jni") \
duke@435	447	\
duke@435	448	notproduct(bool, PrintRewrites, false, \
duke@435	449	"Print methods that are being rewritten") \
duke@435	450	\
duke@435	451	product(bool, UseInlineCaches, true, \
duke@435	452	"Use Inline Caches for virtual calls ") \
duke@435	453	\
duke@435	454	develop(bool, InlineArrayCopy, true, \
duke@435	455	"inline arraycopy native that is known to be part of " \
duke@435	456	"base library DLL") \
duke@435	457	\
duke@435	458	develop(bool, InlineObjectHash, true, \
duke@435	459	"inline Object::hashCode() native that is known to be part " \
duke@435	460	"of base library DLL") \
duke@435	461	\
duke@435	462	develop(bool, InlineObjectCopy, true, \
duke@435	463	"inline Object.clone and Arrays.copyOf[Range] intrinsics") \
duke@435	464	\
duke@435	465	develop(bool, InlineNatives, true, \
duke@435	466	"inline natives that are known to be part of base library DLL") \
duke@435	467	\
duke@435	468	develop(bool, InlineMathNatives, true, \
duke@435	469	"inline SinD, CosD, etc.") \
duke@435	470	\
duke@435	471	develop(bool, InlineClassNatives, true, \
duke@435	472	"inline Class.isInstance, etc") \
duke@435	473	\
duke@435	474	develop(bool, InlineAtomicLong, true, \
duke@435	475	"inline sun.misc.AtomicLong") \
duke@435	476	\
duke@435	477	develop(bool, InlineThreadNatives, true, \
duke@435	478	"inline Thread.currentThread, etc") \
duke@435	479	\
duke@435	480	develop(bool, InlineReflectionGetCallerClass, true, \
duke@435	481	"inline sun.reflect.Reflection.getCallerClass(), known to be part "\
duke@435	482	"of base library DLL") \
duke@435	483	\
duke@435	484	develop(bool, InlineUnsafeOps, true, \
duke@435	485	"inline memory ops (native methods) from sun.misc.Unsafe") \
duke@435	486	\
duke@435	487	develop(bool, ConvertCmpD2CmpF, true, \
duke@435	488	"Convert cmpD to cmpF when one input is constant in float range") \
duke@435	489	\
duke@435	490	develop(bool, ConvertFloat2IntClipping, true, \
duke@435	491	"Convert float2int clipping idiom to integer clipping") \
duke@435	492	\
duke@435	493	develop(bool, SpecialStringCompareTo, true, \
duke@435	494	"special version of string compareTo") \
duke@435	495	\
duke@435	496	develop(bool, SpecialStringIndexOf, true, \
duke@435	497	"special version of string indexOf") \
duke@435	498	\
cfang@1116	499	develop(bool, SpecialStringEquals, true, \
cfang@1116	500	"special version of string equals") \
cfang@1116	501	\
cfang@1116	502	develop(bool, SpecialArraysEquals, true, \
rasbold@604	503	"special version of Arrays.equals(char[],char[])") \
rasbold@604	504	\
cfang@1116	505	product(bool, UseSSE42Intrinsics, false, \
cfang@1116	506	"SSE4.2 versions of intrinsics") \
cfang@1116	507	\
duke@435	508	develop(bool, TraceCallFixup, false, \
duke@435	509	"traces all call fixups") \
duke@435	510	\
duke@435	511	develop(bool, DeoptimizeALot, false, \
duke@435	512	"deoptimize at every exit from the runtime system") \
duke@435	513	\
kvn@869	514	notproduct(ccstrlist, DeoptimizeOnlyAt, "", \
duke@435	515	"a comma separated list of bcis to deoptimize at") \
duke@435	516	\
duke@435	517	product(bool, DeoptimizeRandom, false, \
duke@435	518	"deoptimize random frames on random exit from the runtime system")\
duke@435	519	\
duke@435	520	notproduct(bool, ZombieALot, false, \
duke@435	521	"creates zombies (non-entrant) at exit from the runt. system") \
duke@435	522	\
duke@435	523	notproduct(bool, WalkStackALot, false, \
duke@435	524	"trace stack (no print) at every exit from the runtime system") \
duke@435	525	\
duke@435	526	develop(bool, Debugging, false, \
duke@435	527	"set when executing debug methods in debug.ccp " \
duke@435	528	"(to prevent triggering assertions)") \
duke@435	529	\
duke@435	530	notproduct(bool, StrictSafepointChecks, trueInDebug, \
duke@435	531	"Enable strict checks that safepoints cannot happen for threads " \
duke@435	532	"that used No_Safepoint_Verifier") \
duke@435	533	\
duke@435	534	notproduct(bool, VerifyLastFrame, false, \
duke@435	535	"Verify oops on last frame on entry to VM") \
duke@435	536	\
duke@435	537	develop(bool, TraceHandleAllocation, false, \
duke@435	538	"Prints out warnings when suspicious many handles are allocated") \
duke@435	539	\
duke@435	540	product(bool, UseCompilerSafepoints, true, \
duke@435	541	"Stop at safepoints in compiled code") \
duke@435	542	\
duke@435	543	product(bool, UseSplitVerifier, true, \
duke@435	544	"use split verifier with StackMapTable attributes") \
duke@435	545	\
duke@435	546	product(bool, FailOverToOldVerifier, true, \
duke@435	547	"fail over to old verifier when split verifier fails") \
duke@435	548	\
duke@435	549	develop(bool, ShowSafepointMsgs, false, \
duke@435	550	"Show msg. about safepoint synch.") \
duke@435	551	\
duke@435	552	product(bool, SafepointTimeout, false, \
duke@435	553	"Time out and warn or fail after SafepointTimeoutDelay " \
duke@435	554	"milliseconds if failed to reach safepoint") \
duke@435	555	\
duke@435	556	develop(bool, DieOnSafepointTimeout, false, \
duke@435	557	"Die upon failure to reach safepoint (see SafepointTimeout)") \
duke@435	558	\
duke@435	559	/* 50 retries * (5 * current_retry_count) millis = ~6.375 seconds */ \
duke@435	560	/* typically, at most a few retries are needed */ \
duke@435	561	product(intx, SuspendRetryCount, 50, \
duke@435	562	"Maximum retry count for an external suspend request") \
duke@435	563	\
duke@435	564	product(intx, SuspendRetryDelay, 5, \
duke@435	565	"Milliseconds to delay per retry (* current_retry_count)") \
duke@435	566	\
duke@435	567	product(bool, AssertOnSuspendWaitFailure, false, \
duke@435	568	"Assert/Guarantee on external suspend wait failure") \
duke@435	569	\
duke@435	570	product(bool, TraceSuspendWaitFailures, false, \
duke@435	571	"Trace external suspend wait failures") \
duke@435	572	\
duke@435	573	product(bool, MaxFDLimit, true, \
duke@435	574	"Bump the number of file descriptors to max in solaris.") \
duke@435	575	\
duke@435	576	notproduct(bool, LogEvents, trueInDebug, \
duke@435	577	"Enable Event log") \
duke@435	578	\
duke@435	579	product(bool, BytecodeVerificationRemote, true, \
duke@435	580	"Enables the Java bytecode verifier for remote classes") \
duke@435	581	\
duke@435	582	product(bool, BytecodeVerificationLocal, false, \
duke@435	583	"Enables the Java bytecode verifier for local classes") \
duke@435	584	\
duke@435	585	develop(bool, ForceFloatExceptions, trueInDebug, \
duke@435	586	"Force exceptions on FP stack under/overflow") \
duke@435	587	\
duke@435	588	develop(bool, SoftMatchFailure, trueInProduct, \
duke@435	589	"If the DFA fails to match a node, print a message and bail out") \
duke@435	590	\
duke@435	591	develop(bool, VerifyStackAtCalls, false, \
duke@435	592	"Verify that the stack pointer is unchanged after calls") \
duke@435	593	\
duke@435	594	develop(bool, TraceJavaAssertions, false, \
duke@435	595	"Trace java language assertions") \
duke@435	596	\
duke@435	597	notproduct(bool, CheckAssertionStatusDirectives, false, \
duke@435	598	"temporary - see javaClasses.cpp") \
duke@435	599	\
duke@435	600	notproduct(bool, PrintMallocFree, false, \
duke@435	601	"Trace calls to C heap malloc/free allocation") \
duke@435	602	\
bobv@2036	603	product(bool, PrintOopAddress, false, \
duke@435	604	"Always print the location of the oop") \
duke@435	605	\
duke@435	606	notproduct(bool, VerifyCodeCacheOften, false, \
duke@435	607	"Verify compiled-code cache often") \
duke@435	608	\
duke@435	609	develop(bool, ZapDeadCompiledLocals, false, \
duke@435	610	"Zap dead locals in compiler frames") \
duke@435	611	\
duke@435	612	notproduct(bool, ZapDeadLocalsOld, false, \
duke@435	613	"Zap dead locals (old version, zaps all frames when " \
duke@435	614	"entering the VM") \
duke@435	615	\
duke@435	616	notproduct(bool, CheckOopishValues, false, \
duke@435	617	"Warn if value contains oop ( requires ZapDeadLocals)") \
duke@435	618	\
duke@435	619	develop(bool, UseMallocOnly, false, \
duke@435	620	"use only malloc/free for allocation (no resource area/arena)") \
duke@435	621	\
duke@435	622	develop(bool, PrintMalloc, false, \
duke@435	623	"print all malloc/free calls") \
duke@435	624	\
duke@435	625	develop(bool, ZapResourceArea, trueInDebug, \
duke@435	626	"Zap freed resource/arena space with 0xABABABAB") \
duke@435	627	\
duke@435	628	notproduct(bool, ZapVMHandleArea, trueInDebug, \
duke@435	629	"Zap freed VM handle space with 0xBCBCBCBC") \
duke@435	630	\
duke@435	631	develop(bool, ZapJNIHandleArea, trueInDebug, \
duke@435	632	"Zap freed JNI handle space with 0xFEFEFEFE") \
duke@435	633	\
jmasa@698	634	develop(bool, ZapUnusedHeapArea, trueInDebug, \
duke@435	635	"Zap unused heap space with 0xBAADBABE") \
duke@435	636	\
jmasa@698	637	develop(bool, TraceZapUnusedHeapArea, false, \
jmasa@698	638	"Trace zapping of unused heap space") \
jmasa@698	639	\
jmasa@698	640	develop(bool, CheckZapUnusedHeapArea, false, \
jmasa@698	641	"Check zapping of unused heap space") \
jmasa@698	642	\
jcoomes@916	643	develop(bool, ZapFillerObjects, trueInDebug, \
jcoomes@916	644	"Zap filler objects with 0xDEAFBABE") \
jcoomes@916	645	\
duke@435	646	develop(bool, PrintVMMessages, true, \
duke@435	647	"Print vm messages on console") \
duke@435	648	\
duke@435	649	product(bool, PrintGCApplicationConcurrentTime, false, \
duke@435	650	"Print the time the application has been running") \
duke@435	651	\
duke@435	652	product(bool, PrintGCApplicationStoppedTime, false, \
duke@435	653	"Print the time the application has been stopped") \
duke@435	654	\
jcoomes@1845	655	notproduct(uintx, ErrorHandlerTest, 0, \
jcoomes@1845	656	"If > 0, provokes an error after VM initialization; the value" \
jcoomes@1845	657	"determines which error to provoke. See test_error_handler()" \
jcoomes@1845	658	"in debug.cpp.") \
jcoomes@1845	659	\
duke@435	660	develop(bool, Verbose, false, \
duke@435	661	"Prints additional debugging information from other modes") \
duke@435	662	\
duke@435	663	develop(bool, PrintMiscellaneous, false, \
duke@435	664	"Prints uncategorized debugging information (requires +Verbose)") \
duke@435	665	\
duke@435	666	develop(bool, WizardMode, false, \
duke@435	667	"Prints much more debugging information") \
duke@435	668	\
duke@435	669	product(bool, ShowMessageBoxOnError, false, \
duke@435	670	"Keep process alive on VM fatal error") \
duke@435	671	\
duke@435	672	product_pd(bool, UseOSErrorReporting, \
duke@435	673	"Let VM fatal error propagate to the OS (ie. WER on Windows)") \
duke@435	674	\
duke@435	675	product(bool, SuppressFatalErrorMessage, false, \
duke@435	676	"Do NO Fatal Error report [Avoid deadlock]") \
duke@435	677	\
duke@435	678	product(ccstrlist, OnError, "", \
duke@435	679	"Run user-defined commands on fatal error; see VMError.cpp " \
duke@435	680	"for examples") \
duke@435	681	\
duke@435	682	product(ccstrlist, OnOutOfMemoryError, "", \
duke@435	683	"Run user-defined commands on first java.lang.OutOfMemoryError") \
duke@435	684	\
ysr@1050	685	manageable(bool, HeapDumpBeforeFullGC, false, \
ysr@1050	686	"Dump heap to file before any major stop-world GC") \
ysr@1050	687	\
ysr@1050	688	manageable(bool, HeapDumpAfterFullGC, false, \
ysr@1050	689	"Dump heap to file after any major stop-world GC") \
ysr@1050	690	\
duke@435	691	manageable(bool, HeapDumpOnOutOfMemoryError, false, \
duke@435	692	"Dump heap to file when java.lang.OutOfMemoryError is thrown") \
duke@435	693	\
duke@435	694	manageable(ccstr, HeapDumpPath, NULL, \
duke@435	695	"When HeapDumpOnOutOfMemoryError is on, the path (filename or" \
duke@435	696	"directory) of the dump file (defaults to java_pid<pid>.hprof" \
duke@435	697	"in the working directory)") \
duke@435	698	\
duke@435	699	develop(uintx, SegmentedHeapDumpThreshold, 2*G, \
duke@435	700	"Generate a segmented heap dump (JAVA PROFILE 1.0.2 format) " \
duke@435	701	"when the heap usage is larger than this") \
duke@435	702	\
duke@435	703	develop(uintx, HeapDumpSegmentSize, 1*G, \
duke@435	704	"Approximate segment size when generating a segmented heap dump") \
duke@435	705	\
duke@435	706	develop(bool, BreakAtWarning, false, \
duke@435	707	"Execute breakpoint upon encountering VM warning") \
duke@435	708	\
duke@435	709	product_pd(bool, UseVectoredExceptions, \
duke@435	710	"Temp Flag - Use Vectored Exceptions rather than SEH (Windows Only)") \
duke@435	711	\
duke@435	712	develop(bool, TraceVMOperation, false, \
duke@435	713	"Trace vm operations") \
duke@435	714	\
duke@435	715	develop(bool, UseFakeTimers, false, \
duke@435	716	"Tells whether the VM should use system time or a fake timer") \
duke@435	717	\
duke@435	718	diagnostic(bool, LogCompilation, false, \
duke@435	719	"Log compilation activity in detail to hotspot.log or LogFile") \
duke@435	720	\
duke@435	721	product(bool, PrintCompilation, false, \
duke@435	722	"Print compilations") \
duke@435	723	\
duke@435	724	diagnostic(bool, TraceNMethodInstalls, false, \
duke@435	725	"Trace nmethod intallation") \
duke@435	726	\
jrose@1424	727	diagnostic(intx, ScavengeRootsInCode, 0, \
jrose@1424	728	"0: do not allow scavengable oops in the code cache; " \
jrose@1424	729	"1: allow scavenging from the code cache; " \
jrose@1424	730	"2: emit as many constants as the compiler can see") \
jrose@1424	731	\
duke@435	732	diagnostic(bool, TraceOSRBreakpoint, false, \
duke@435	733	"Trace OSR Breakpoint ") \
duke@435	734	\
duke@435	735	diagnostic(bool, TraceCompileTriggered, false, \
duke@435	736	"Trace compile triggered") \
duke@435	737	\
duke@435	738	diagnostic(bool, TraceTriggers, false, \
duke@435	739	"Trace triggers") \
duke@435	740	\
duke@435	741	product(bool, AlwaysRestoreFPU, false, \
duke@435	742	"Restore the FPU control word after every JNI call (expensive)") \
duke@435	743	\
duke@435	744	notproduct(bool, PrintCompilation2, false, \
duke@435	745	"Print additional statistics per compilation") \
duke@435	746	\
jrose@535	747	diagnostic(bool, PrintAdapterHandlers, false, \
duke@435	748	"Print code generated for i2c/c2i adapters") \
duke@435	749	\
never@1642	750	develop(bool, VerifyAdapterSharing, false, \
never@1642	751	"Verify that the code for shared adapters is the equivalent") \
never@1642	752	\
jrose@535	753	diagnostic(bool, PrintAssembly, false, \
jrose@535	754	"Print assembly code (using external disassembler.so)") \
jrose@535	755	\
never@805	756	diagnostic(ccstr, PrintAssemblyOptions, NULL, \
jrose@535	757	"Options string passed to disassembler.so") \
jrose@535	758	\
jrose@535	759	diagnostic(bool, PrintNMethods, false, \
duke@435	760	"Print assembly code for nmethods when generated") \
duke@435	761	\
jrose@535	762	diagnostic(bool, PrintNativeNMethods, false, \
duke@435	763	"Print assembly code for native nmethods when generated") \
duke@435	764	\
duke@435	765	develop(bool, PrintDebugInfo, false, \
duke@435	766	"Print debug information for all nmethods when generated") \
duke@435	767	\
duke@435	768	develop(bool, PrintRelocations, false, \
duke@435	769	"Print relocation information for all nmethods when generated") \
duke@435	770	\
duke@435	771	develop(bool, PrintDependencies, false, \
duke@435	772	"Print dependency information for all nmethods when generated") \
duke@435	773	\
duke@435	774	develop(bool, PrintExceptionHandlers, false, \
duke@435	775	"Print exception handler tables for all nmethods when generated") \
duke@435	776	\
duke@435	777	develop(bool, InterceptOSException, false, \
duke@435	778	"Starts debugger when an implicit OS (e.g., NULL) " \
duke@435	779	"exception happens") \
duke@435	780	\
duke@435	781	notproduct(bool, PrintCodeCache, false, \
duke@435	782	"Print the compiled_code cache when exiting") \
duke@435	783	\
duke@435	784	develop(bool, PrintCodeCache2, false, \
duke@435	785	"Print detailed info on the compiled_code cache when exiting") \
duke@435	786	\
jrose@535	787	diagnostic(bool, PrintStubCode, false, \
duke@435	788	"Print generated stub code") \
duke@435	789	\
duke@435	790	product(bool, StackTraceInThrowable, true, \
duke@435	791	"Collect backtrace in throwable when exception happens") \
duke@435	792	\
duke@435	793	product(bool, OmitStackTraceInFastThrow, true, \
duke@435	794	"Omit backtraces for some 'hot' exceptions in optimized code") \
duke@435	795	\
duke@435	796	product(bool, ProfilerPrintByteCodeStatistics, false, \
duke@435	797	"Prints byte code statictics when dumping profiler output") \
duke@435	798	\
duke@435	799	product(bool, ProfilerRecordPC, false, \
duke@435	800	"Collects tick for each 16 byte interval of compiled code") \
duke@435	801	\
phh@1499	802	product(bool, ProfileVM, false, \
duke@435	803	"Profiles ticks that fall within VM (either in the VM Thread " \
duke@435	804	"or VM code called through stubs)") \
duke@435	805	\
duke@435	806	product(bool, ProfileIntervals, false, \
duke@435	807	"Prints profiles for each interval (see ProfileIntervalsTicks)") \
duke@435	808	\
duke@435	809	notproduct(bool, ProfilerCheckIntervals, false, \
duke@435	810	"Collect and print info on spacing of profiler ticks") \
duke@435	811	\
duke@435	812	develop(bool, PrintJVMWarnings, false, \
duke@435	813	"Prints warnings for unimplemented JVM functions") \
duke@435	814	\
duke@435	815	notproduct(uintx, WarnOnStalledSpinLock, 0, \
duke@435	816	"Prints warnings for stalled SpinLocks") \
duke@435	817	\
duke@435	818	develop(bool, InitializeJavaLangSystem, true, \
duke@435	819	"Initialize java.lang.System - turn off for individual " \
duke@435	820	"method debugging") \
duke@435	821	\
duke@435	822	develop(bool, InitializeJavaLangString, true, \
duke@435	823	"Initialize java.lang.String - turn off for individual " \
duke@435	824	"method debugging") \
duke@435	825	\
duke@435	826	develop(bool, InitializeJavaLangExceptionsErrors, true, \
duke@435	827	"Initialize various error and exception classes - turn off for " \
duke@435	828	"individual method debugging") \
duke@435	829	\
duke@435	830	product(bool, RegisterFinalizersAtInit, true, \
duke@435	831	"Register finalizable objects at end of Object.<init> or " \
phh@1499	832	"after allocation") \
duke@435	833	\
duke@435	834	develop(bool, RegisterReferences, true, \
duke@435	835	"Tells whether the VM should register soft/weak/final/phantom " \
duke@435	836	"references") \
duke@435	837	\
duke@435	838	develop(bool, IgnoreRewrites, false, \
duke@435	839	"Supress rewrites of bytecodes in the oopmap generator. " \
duke@435	840	"This is unsafe!") \
duke@435	841	\
duke@435	842	develop(bool, PrintCodeCacheExtension, false, \
duke@435	843	"Print extension of code cache") \
duke@435	844	\
duke@435	845	develop(bool, UsePrivilegedStack, true, \
duke@435	846	"Enable the security JVM functions") \
duke@435	847	\
duke@435	848	develop(bool, IEEEPrecision, true, \
duke@435	849	"Enables IEEE precision (for INTEL only)") \
duke@435	850	\
duke@435	851	develop(bool, ProtectionDomainVerification, true, \
duke@435	852	"Verifies protection domain before resolution in system " \
duke@435	853	"dictionary") \
duke@435	854	\
duke@435	855	product(bool, ClassUnloading, true, \
duke@435	856	"Do unloading of classes") \
duke@435	857	\
jrose@909	858	diagnostic(bool, LinkWellKnownClasses, false, \
jrose@567	859	"Resolve a well known class as soon as its name is seen") \
jrose@567	860	\
duke@435	861	develop(bool, DisableStartThread, false, \
duke@435	862	"Disable starting of additional Java threads " \
duke@435	863	"(for debugging only)") \
duke@435	864	\
duke@435	865	develop(bool, MemProfiling, false, \
duke@435	866	"Write memory usage profiling to log file") \
duke@435	867	\
duke@435	868	notproduct(bool, PrintSystemDictionaryAtExit, false, \
duke@435	869	"Prints the system dictionary at exit") \
duke@435	870	\
duke@435	871	diagnostic(bool, UnsyncloadClass, false, \
acorn@949	872	"Unstable: VM calls loadClass unsynchronized. Custom " \
acorn@949	873	"class loader must call VM synchronized for findClass " \
acorn@949	874	"and defineClass.") \
acorn@949	875	\
acorn@949	876	product(bool, AlwaysLockClassLoader, false, \
acorn@949	877	"Require the VM to acquire the class loader lock before calling " \
acorn@949	878	"loadClass() even for class loaders registering " \
phh@1499	879	"as parallel capable") \
acorn@949	880	\
acorn@949	881	product(bool, AllowParallelDefineClass, false, \
acorn@949	882	"Allow parallel defineClass requests for class loaders " \
phh@1499	883	"registering as parallel capable") \
acorn@949	884	\
acorn@949	885	product(bool, MustCallLoadClassInternal, false, \
phh@1499	886	"Call loadClassInternal() rather than loadClass()") \
duke@435	887	\
duke@435	888	product_pd(bool, DontYieldALot, \
duke@435	889	"Throw away obvious excess yield calls (for SOLARIS only)") \
duke@435	890	\
duke@435	891	product_pd(bool, ConvertSleepToYield, \
duke@435	892	"Converts sleep(0) to thread yield " \
duke@435	893	"(may be off for SOLARIS to improve GUI)") \
duke@435	894	\
duke@435	895	product(bool, ConvertYieldToSleep, false, \
duke@435	896	"Converts yield to a sleep of MinSleepInterval to simulate Win32 "\
duke@435	897	"behavior (SOLARIS only)") \
duke@435	898	\
duke@435	899	product(bool, UseBoundThreads, true, \
duke@435	900	"Bind user level threads to kernel threads (for SOLARIS only)") \
duke@435	901	\
duke@435	902	develop(bool, UseDetachedThreads, true, \
duke@435	903	"Use detached threads that are recycled upon termination " \
duke@435	904	"(for SOLARIS only)") \
duke@435	905	\
duke@435	906	product(bool, UseLWPSynchronization, true, \
duke@435	907	"Use LWP-based instead of libthread-based synchronization " \
duke@435	908	"(SPARC only)") \
duke@435	909	\
never@805	910	product(ccstr, SyncKnobs, NULL, \
duke@435	911	"(Unstable) Various monitor synchronization tunables") \
duke@435	912	\
duke@435	913	product(intx, EmitSync, 0, \
duke@435	914	"(Unsafe,Unstable) " \
duke@435	915	" Controls emission of inline sync fast-path code") \
duke@435	916	\
duke@435	917	product(intx, AlwaysInflate, 0, "(Unstable) Force inflation") \
duke@435	918	\
acorn@1942	919	product(intx, MonitorBound, 0, "Bound Monitor population") \
acorn@1942	920	\
acorn@1942	921	product(bool, MonitorInUseLists, false, "Track Monitors for Deflation") \
acorn@1942	922	\
duke@435	923	product(intx, Atomics, 0, \
duke@435	924	"(Unsafe,Unstable) Diagnostic - Controls emission of atomics") \
duke@435	925	\
duke@435	926	product(intx, FenceInstruction, 0, \
duke@435	927	"(Unsafe,Unstable) Experimental") \
duke@435	928	\
duke@435	929	product(intx, SyncFlags, 0, "(Unsafe,Unstable) Experimental Sync flags" ) \
duke@435	930	\
duke@435	931	product(intx, SyncVerbose, 0, "(Unstable)" ) \
duke@435	932	\
duke@435	933	product(intx, ClearFPUAtPark, 0, "(Unsafe,Unstable)" ) \
duke@435	934	\
duke@435	935	product(intx, hashCode, 0, \
duke@435	936	"(Unstable) select hashCode generation algorithm" ) \
duke@435	937	\
duke@435	938	product(intx, WorkAroundNPTLTimedWaitHang, 1, \
duke@435	939	"(Unstable, Linux-specific)" \
duke@435	940	" avoid NPTL-FUTEX hang pthread_cond_timedwait" ) \
duke@435	941	\
phh@1499	942	product(bool, FilterSpuriousWakeups, true, \
phh@1499	943	"Prevent spurious or premature wakeups from object.wait " \
phh@1499	944	"(Solaris only)") \
duke@435	945	\
duke@435	946	product(intx, NativeMonitorTimeout, -1, "(Unstable)" ) \
duke@435	947	product(intx, NativeMonitorFlags, 0, "(Unstable)" ) \
duke@435	948	product(intx, NativeMonitorSpinLimit, 20, "(Unstable)" ) \
duke@435	949	\
duke@435	950	develop(bool, UsePthreads, false, \
duke@435	951	"Use pthread-based instead of libthread-based synchronization " \
duke@435	952	"(SPARC only)") \
duke@435	953	\
duke@435	954	product(bool, AdjustConcurrency, false, \
duke@435	955	"call thr_setconcurrency at thread create time to avoid " \
duke@435	956	"LWP starvation on MP systems (For Solaris Only)") \
duke@435	957	\
duke@435	958	develop(bool, UpdateHotSpotCompilerFileOnError, true, \
duke@435	959	"Should the system attempt to update the compiler file when " \
duke@435	960	"an error occurs?") \
duke@435	961	\
duke@435	962	product(bool, ReduceSignalUsage, false, \
duke@435	963	"Reduce the use of OS signals in Java and/or the VM") \
duke@435	964	\
duke@435	965	notproduct(bool, ValidateMarkSweep, false, \
duke@435	966	"Do extra validation during MarkSweep collection") \
duke@435	967	\
duke@435	968	notproduct(bool, RecordMarkSweepCompaction, false, \
duke@435	969	"Enable GC-to-GC recording and querying of compaction during " \
duke@435	970	"MarkSweep") \
duke@435	971	\
duke@435	972	develop_pd(bool, ShareVtableStubs, \
duke@435	973	"Share vtable stubs (smaller code but worse branch prediction") \
duke@435	974	\
duke@435	975	develop(bool, LoadLineNumberTables, true, \
duke@435	976	"Tells whether the class file parser loads line number tables") \
duke@435	977	\
duke@435	978	develop(bool, LoadLocalVariableTables, true, \
duke@435	979	"Tells whether the class file parser loads local variable tables")\
duke@435	980	\
duke@435	981	develop(bool, LoadLocalVariableTypeTables, true, \
duke@435	982	"Tells whether the class file parser loads local variable type tables")\
duke@435	983	\
duke@435	984	product(bool, AllowUserSignalHandlers, false, \
duke@435	985	"Do not complain if the application installs signal handlers " \
duke@435	986	"(Solaris & Linux only)") \
duke@435	987	\
duke@435	988	product(bool, UseSignalChaining, true, \
duke@435	989	"Use signal-chaining to invoke signal handlers installed " \
duke@435	990	"by the application (Solaris & Linux only)") \
duke@435	991	\
duke@435	992	product(bool, UseAltSigs, false, \
duke@435	993	"Use alternate signals instead of SIGUSR1 & SIGUSR2 for VM " \
phh@1499	994	"internal signals (Solaris only)") \
duke@435	995	\
duke@435	996	product(bool, UseSpinning, false, \
duke@435	997	"Use spinning in monitor inflation and before entry") \
duke@435	998	\
duke@435	999	product(bool, PreSpinYield, false, \
duke@435	1000	"Yield before inner spinning loop") \
duke@435	1001	\
duke@435	1002	product(bool, PostSpinYield, true, \
duke@435	1003	"Yield after inner spinning loop") \
duke@435	1004	\
duke@435	1005	product(bool, AllowJNIEnvProxy, false, \
duke@435	1006	"Allow JNIEnv proxies for jdbx") \
duke@435	1007	\
duke@435	1008	product(bool, JNIDetachReleasesMonitors, true, \
duke@435	1009	"JNI DetachCurrentThread releases monitors owned by thread") \
duke@435	1010	\
duke@435	1011	product(bool, RestoreMXCSROnJNICalls, false, \
duke@435	1012	"Restore MXCSR when returning from JNI calls") \
duke@435	1013	\
duke@435	1014	product(bool, CheckJNICalls, false, \
duke@435	1015	"Verify all arguments to JNI calls") \
duke@435	1016	\
duke@435	1017	product(bool, UseFastJNIAccessors, true, \
duke@435	1018	"Use optimized versions of Get<Primitive>Field") \
duke@435	1019	\
duke@435	1020	product(bool, EagerXrunInit, false, \
duke@435	1021	"Eagerly initialize -Xrun libraries; allows startup profiling, " \
duke@435	1022	" but not all -Xrun libraries may support the state of the VM at this time") \
duke@435	1023	\
duke@435	1024	product(bool, PreserveAllAnnotations, false, \
duke@435	1025	"Preserve RuntimeInvisibleAnnotations as well as RuntimeVisibleAnnotations") \
duke@435	1026	\
duke@435	1027	develop(uintx, PreallocatedOutOfMemoryErrorCount, 4, \
duke@435	1028	"Number of OutOfMemoryErrors preallocated with backtrace") \
duke@435	1029	\
duke@435	1030	product(bool, LazyBootClassLoader, true, \
duke@435	1031	"Enable/disable lazy opening of boot class path entries") \
duke@435	1032	\
duke@435	1033	diagnostic(bool, UseIncDec, true, \
duke@435	1034	"Use INC, DEC instructions on x86") \
duke@435	1035	\
kvn@654	1036	product(bool, UseNewLongLShift, false, \
kvn@654	1037	"Use optimized bitwise shift left") \
kvn@654	1038	\
duke@435	1039	product(bool, UseStoreImmI16, true, \
duke@435	1040	"Use store immediate 16-bits value instruction on x86") \
duke@435	1041	\
duke@435	1042	product(bool, UseAddressNop, false, \
duke@435	1043	"Use '0F 1F [addr]' NOP instructions on x86 cpus") \
duke@435	1044	\
duke@435	1045	product(bool, UseXmmLoadAndClearUpper, true, \
duke@435	1046	"Load low part of XMM register and clear upper part") \
duke@435	1047	\
duke@435	1048	product(bool, UseXmmRegToRegMoveAll, false, \
duke@435	1049	"Copy all XMM register bits when moving value between registers") \
duke@435	1050	\
kvn@506	1051	product(bool, UseXmmI2D, false, \
kvn@506	1052	"Use SSE2 CVTDQ2PD instruction to convert Integer to Double") \
kvn@506	1053	\
kvn@506	1054	product(bool, UseXmmI2F, false, \
kvn@506	1055	"Use SSE2 CVTDQ2PS instruction to convert Integer to Float") \
kvn@506	1056	\
kvn@840	1057	product(bool, UseXMMForArrayCopy, false, \
kvn@840	1058	"Use SSE2 MOVQ instruction for Arraycopy") \
kvn@840	1059	\
kvn@840	1060	product(bool, UseUnalignedLoadStores, false, \
kvn@840	1061	"Use SSE2 MOVDQU instruction for Arraycopy") \
kvn@840	1062	\
duke@435	1063	product(intx, FieldsAllocationStyle, 1, \
kvn@1801	1064	"0 - type based with oops first, 1 - with oops last, " \
kvn@1801	1065	"2 - oops in super and sub classes are together") \
duke@435	1066	\
duke@435	1067	product(bool, CompactFields, true, \
duke@435	1068	"Allocate nonstatic fields in gaps between previous fields") \
duke@435	1069	\
duke@435	1070	notproduct(bool, PrintCompactFieldsSavings, false, \
duke@435	1071	"Print how many words were saved with CompactFields") \
duke@435	1072	\
duke@435	1073	product(bool, UseBiasedLocking, true, \
duke@435	1074	"Enable biased locking in JVM") \
duke@435	1075	\
duke@435	1076	product(intx, BiasedLockingStartupDelay, 4000, \
duke@435	1077	"Number of milliseconds to wait before enabling biased locking") \
duke@435	1078	\
duke@435	1079	diagnostic(bool, PrintBiasedLockingStatistics, false, \
duke@435	1080	"Print statistics of biased locking in JVM") \
duke@435	1081	\
duke@435	1082	product(intx, BiasedLockingBulkRebiasThreshold, 20, \
duke@435	1083	"Threshold of number of revocations per type to try to " \
duke@435	1084	"rebias all objects in the heap of that type") \
duke@435	1085	\
duke@435	1086	product(intx, BiasedLockingBulkRevokeThreshold, 40, \
duke@435	1087	"Threshold of number of revocations per type to permanently " \
duke@435	1088	"revoke biases of all objects in the heap of that type") \
duke@435	1089	\
duke@435	1090	product(intx, BiasedLockingDecayTime, 25000, \
duke@435	1091	"Decay time (in milliseconds) to re-enable bulk rebiasing of a " \
duke@435	1092	"type after previous bulk rebias") \
duke@435	1093	\
duke@435	1094	/* tracing */ \
duke@435	1095	\
duke@435	1096	notproduct(bool, TraceRuntimeCalls, false, \
duke@435	1097	"Trace run-time calls") \
duke@435	1098	\
duke@435	1099	develop(bool, TraceJNICalls, false, \
duke@435	1100	"Trace JNI calls") \
duke@435	1101	\
duke@435	1102	notproduct(bool, TraceJVMCalls, false, \
duke@435	1103	"Trace JVM calls") \
duke@435	1104	\
never@805	1105	product(ccstr, TraceJVMTI, NULL, \
duke@435	1106	"Trace flags for JVMTI functions and events") \
duke@435	1107	\
dcubed@1315	1108	product(bool, ForceFullGCJVMTIEpilogues, false, \
dcubed@1315	1109	"Force 'Full GC' was done semantics for JVMTI GC epilogues") \
dcubed@1315	1110	\
duke@435	1111	/* This option can change an EMCP method into an obsolete method. */ \
duke@435	1112	/* This can affect tests that except specific methods to be EMCP. */ \
duke@435	1113	/* This option should be used with caution. */ \
duke@435	1114	product(bool, StressLdcRewrite, false, \
duke@435	1115	"Force ldc -> ldc_w rewrite during RedefineClasses") \
duke@435	1116	\
duke@435	1117	product(intx, TraceRedefineClasses, 0, \
duke@435	1118	"Trace level for JVMTI RedefineClasses") \
duke@435	1119	\
jrose@1929	1120	develop(bool, StressMethodComparator, false, \
jrose@1929	1121	"run the MethodComparator on all loaded methods") \
jrose@1929	1122	\
duke@435	1123	/* change to false by default sometime after Mustang */ \
duke@435	1124	product(bool, VerifyMergedCPBytecodes, true, \
duke@435	1125	"Verify bytecodes after RedefineClasses constant pool merging") \
duke@435	1126	\
duke@435	1127	develop(bool, TraceJNIHandleAllocation, false, \
duke@435	1128	"Trace allocation/deallocation of JNI handle blocks") \
duke@435	1129	\
duke@435	1130	develop(bool, TraceThreadEvents, false, \
duke@435	1131	"Trace all thread events") \
duke@435	1132	\
duke@435	1133	develop(bool, TraceBytecodes, false, \
duke@435	1134	"Trace bytecode execution") \
duke@435	1135	\
duke@435	1136	develop(bool, TraceClassInitialization, false, \
duke@435	1137	"Trace class initialization") \
duke@435	1138	\
duke@435	1139	develop(bool, TraceExceptions, false, \
duke@435	1140	"Trace exceptions") \
duke@435	1141	\
duke@435	1142	develop(bool, TraceICs, false, \
duke@435	1143	"Trace inline cache changes") \
duke@435	1144	\
duke@435	1145	notproduct(bool, TraceInvocationCounterOverflow, false, \
duke@435	1146	"Trace method invocation counter overflow") \
duke@435	1147	\
duke@435	1148	develop(bool, TraceInlineCacheClearing, false, \
duke@435	1149	"Trace clearing of inline caches in nmethods") \
duke@435	1150	\
duke@435	1151	develop(bool, TraceDependencies, false, \
duke@435	1152	"Trace dependencies") \
duke@435	1153	\
duke@435	1154	develop(bool, VerifyDependencies, trueInDebug, \
duke@435	1155	"Exercise and verify the compilation dependency mechanism") \
duke@435	1156	\
duke@435	1157	develop(bool, TraceNewOopMapGeneration, false, \
duke@435	1158	"Trace OopMapGeneration") \
duke@435	1159	\
duke@435	1160	develop(bool, TraceNewOopMapGenerationDetailed, false, \
duke@435	1161	"Trace OopMapGeneration: print detailed cell states") \
duke@435	1162	\
duke@435	1163	develop(bool, TimeOopMap, false, \
duke@435	1164	"Time calls to GenerateOopMap::compute_map() in sum") \
duke@435	1165	\
duke@435	1166	develop(bool, TimeOopMap2, false, \
duke@435	1167	"Time calls to GenerateOopMap::compute_map() individually") \
duke@435	1168	\
duke@435	1169	develop(bool, TraceMonitorMismatch, false, \
duke@435	1170	"Trace monitor matching failures during OopMapGeneration") \
duke@435	1171	\
duke@435	1172	develop(bool, TraceOopMapRewrites, false, \
duke@435	1173	"Trace rewritting of method oops during oop map generation") \
duke@435	1174	\
duke@435	1175	develop(bool, TraceSafepoint, false, \
duke@435	1176	"Trace safepoint operations") \
duke@435	1177	\
duke@435	1178	develop(bool, TraceICBuffer, false, \
duke@435	1179	"Trace usage of IC buffer") \
duke@435	1180	\
duke@435	1181	develop(bool, TraceCompiledIC, false, \
duke@435	1182	"Trace changes of compiled IC") \
duke@435	1183	\
duke@435	1184	notproduct(bool, TraceZapDeadLocals, false, \
duke@435	1185	"Trace zapping dead locals") \
duke@435	1186	\
duke@435	1187	develop(bool, TraceStartupTime, false, \
duke@435	1188	"Trace setup time") \
duke@435	1189	\
duke@435	1190	develop(bool, TraceHPI, false, \
duke@435	1191	"Trace Host Porting Interface (HPI)") \
duke@435	1192	\
duke@435	1193	product(ccstr, HPILibPath, NULL, \
duke@435	1194	"Specify alternate path to HPI library") \
duke@435	1195	\
duke@435	1196	develop(bool, TraceProtectionDomainVerification, false, \
duke@435	1197	"Trace protection domain verifcation") \
duke@435	1198	\
duke@435	1199	develop(bool, TraceClearedExceptions, false, \
duke@435	1200	"Prints when an exception is forcibly cleared") \
duke@435	1201	\
duke@435	1202	product(bool, TraceClassResolution, false, \
duke@435	1203	"Trace all constant pool resolutions (for debugging)") \
duke@435	1204	\
duke@435	1205	product(bool, TraceBiasedLocking, false, \
duke@435	1206	"Trace biased locking in JVM") \
duke@435	1207	\
duke@435	1208	product(bool, TraceMonitorInflation, false, \
duke@435	1209	"Trace monitor inflation in JVM") \
duke@435	1210	\
duke@435	1211	/* assembler */ \
duke@435	1212	product(bool, Use486InstrsOnly, false, \
duke@435	1213	"Use 80486 Compliant instruction subset") \
duke@435	1214	\
duke@435	1215	/* gc */ \
duke@435	1216	\
duke@435	1217	product(bool, UseSerialGC, false, \
ysr@777	1218	"Use the serial garbage collector") \
ysr@777	1219	\
tonyp@1628	1220	product(bool, UseG1GC, false, \
ysr@777	1221	"Use the Garbage-First garbage collector") \
duke@435	1222	\
duke@435	1223	product(bool, UseParallelGC, false, \
duke@435	1224	"Use the Parallel Scavenge garbage collector") \
duke@435	1225	\
duke@435	1226	product(bool, UseParallelOldGC, false, \
duke@435	1227	"Use the Parallel Old garbage collector") \
duke@435	1228	\
duke@435	1229	product(bool, UseParallelOldGCCompacting, true, \
duke@435	1230	"In the Parallel Old garbage collector use parallel compaction") \
duke@435	1231	\
duke@435	1232	product(bool, UseParallelDensePrefixUpdate, true, \
duke@435	1233	"In the Parallel Old garbage collector use parallel dense" \
duke@435	1234	" prefix update") \
duke@435	1235	\
duke@435	1236	product(uintx, HeapMaximumCompactionInterval, 20, \
duke@435	1237	"How often should we maximally compact the heap (not allowing " \
duke@435	1238	"any dead space)") \
duke@435	1239	\
duke@435	1240	product(uintx, HeapFirstMaximumCompactionCount, 3, \
duke@435	1241	"The collection count for the first maximum compaction") \
duke@435	1242	\
duke@435	1243	product(bool, UseMaximumCompactionOnSystemGC, true, \
duke@435	1244	"In the Parallel Old garbage collector maximum compaction for " \
duke@435	1245	"a system GC") \
duke@435	1246	\
duke@435	1247	product(uintx, ParallelOldDeadWoodLimiterMean, 50, \
duke@435	1248	"The mean used by the par compact dead wood" \
duke@435	1249	"limiter (a number between 0-100).") \
duke@435	1250	\
duke@435	1251	product(uintx, ParallelOldDeadWoodLimiterStdDev, 80, \
duke@435	1252	"The standard deviation used by the par compact dead wood" \
duke@435	1253	"limiter (a number between 0-100).") \
duke@435	1254	\
duke@435	1255	product(bool, UseParallelOldGCDensePrefix, true, \
duke@435	1256	"Use a dense prefix with the Parallel Old garbage collector") \
duke@435	1257	\
duke@435	1258	product(uintx, ParallelGCThreads, 0, \
duke@435	1259	"Number of parallel threads parallel gc will use") \
duke@435	1260	\
jcoomes@918	1261	develop(bool, ParallelOldGCSplitALot, false, \
jcoomes@918	1262	"Provoke splitting (copying data from a young gen space to" \
jcoomes@918	1263	"multiple destination spaces)") \
jcoomes@918	1264	\
jcoomes@918	1265	develop(uintx, ParallelOldGCSplitInterval, 3, \
jcoomes@918	1266	"How often to provoke splitting a young gen space") \
duke@435	1267	\
jcoomes@810	1268	develop(bool, TraceRegionTasksQueuing, false, \
jcoomes@810	1269	"Trace the queuing of the region tasks") \
duke@435	1270	\
jmasa@1719	1271	product(uintx, ConcGCThreads, 0, \
jmasa@1719	1272	"Number of threads concurrent gc will use") \
ysr@777	1273	\
duke@435	1274	product(uintx, YoungPLABSize, 4096, \
duke@435	1275	"Size of young gen promotion labs (in HeapWords)") \
duke@435	1276	\
duke@435	1277	product(uintx, OldPLABSize, 1024, \
duke@435	1278	"Size of old gen promotion labs (in HeapWords)") \
duke@435	1279	\
duke@435	1280	product(uintx, GCTaskTimeStampEntries, 200, \
duke@435	1281	"Number of time stamp entries per gc worker thread") \
duke@435	1282	\
duke@435	1283	product(bool, AlwaysTenure, false, \
duke@435	1284	"Always tenure objects in eden. (ParallelGC only)") \
duke@435	1285	\
duke@435	1286	product(bool, NeverTenure, false, \
phh@1499	1287	"Never tenure objects in eden, May tenure on overflow " \
phh@1499	1288	"(ParallelGC only)") \
duke@435	1289	\
duke@435	1290	product(bool, ScavengeBeforeFullGC, true, \
phh@1499	1291	"Scavenge youngest generation before each full GC, " \
phh@1499	1292	"used with UseParallelGC") \
duke@435	1293	\
duke@435	1294	develop(bool, ScavengeWithObjectsInToSpace, false, \
duke@435	1295	"Allow scavenges to occur when to_space contains objects.") \
duke@435	1296	\
duke@435	1297	product(bool, UseConcMarkSweepGC, false, \
duke@435	1298	"Use Concurrent Mark-Sweep GC in the old generation") \
duke@435	1299	\
duke@435	1300	product(bool, ExplicitGCInvokesConcurrent, false, \
duke@435	1301	"A System.gc() request invokes a concurrent collection;" \
duke@435	1302	" (effective only when UseConcMarkSweepGC)") \
duke@435	1303	\
duke@435	1304	product(bool, ExplicitGCInvokesConcurrentAndUnloadsClasses, false, \
phh@1499	1305	"A System.gc() request invokes a concurrent collection and " \
phh@1499	1306	"also unloads classes during such a concurrent gc cycle " \
phh@1499	1307	"(effective only when UseConcMarkSweepGC)") \
duke@435	1308	\
ysr@1875	1309	product(bool, GCLockerInvokesConcurrent, false, \
ysr@1875	1310	"The exit of a JNI CS necessitating a scavenge also" \
ysr@1875	1311	" kicks off a bkgrd concurrent collection") \
ysr@1875	1312	\
duke@435	1313	develop(bool, UseCMSAdaptiveFreeLists, true, \
duke@435	1314	"Use Adaptive Free Lists in the CMS generation") \
duke@435	1315	\
duke@435	1316	develop(bool, UseAsyncConcMarkSweepGC, true, \
duke@435	1317	"Use Asynchronous Concurrent Mark-Sweep GC in the old generation")\
duke@435	1318	\
duke@435	1319	develop(bool, RotateCMSCollectionTypes, false, \
duke@435	1320	"Rotate the CMS collections among concurrent and STW") \
duke@435	1321	\
duke@435	1322	product(bool, UseCMSBestFit, true, \
duke@435	1323	"Use CMS best fit allocation strategy") \
duke@435	1324	\
duke@435	1325	product(bool, UseCMSCollectionPassing, true, \
duke@435	1326	"Use passing of collection from background to foreground") \
duke@435	1327	\
duke@435	1328	product(bool, UseParNewGC, false, \
duke@435	1329	"Use parallel threads in the new generation.") \
duke@435	1330	\
duke@435	1331	product(bool, ParallelGCVerbose, false, \
duke@435	1332	"Verbose output for parallel GC.") \
duke@435	1333	\
duke@435	1334	product(intx, ParallelGCBufferWastePct, 10, \
duke@435	1335	"wasted fraction of parallel allocation buffer.") \
duke@435	1336	\
duke@435	1337	product(bool, ParallelGCRetainPLAB, true, \
duke@435	1338	"Retain parallel allocation buffers across scavenges.") \
duke@435	1339	\
duke@435	1340	product(intx, TargetPLABWastePct, 10, \
duke@435	1341	"target wasted space in last buffer as pct of overall allocation")\
duke@435	1342	\
duke@435	1343	product(uintx, PLABWeight, 75, \
duke@435	1344	"Percentage (0-100) used to weight the current sample when" \
duke@435	1345	"computing exponentially decaying average for ResizePLAB.") \
duke@435	1346	\
duke@435	1347	product(bool, ResizePLAB, true, \
duke@435	1348	"Dynamically resize (survivor space) promotion labs") \
duke@435	1349	\
duke@435	1350	product(bool, PrintPLAB, false, \
duke@435	1351	"Print (survivor space) promotion labs sizing decisions") \
duke@435	1352	\
duke@435	1353	product(intx, ParGCArrayScanChunk, 50, \
duke@435	1354	"Scan a subset and push remainder, if array is bigger than this") \
duke@435	1355	\
ysr@1130	1356	product(bool, ParGCUseLocalOverflow, false, \
ysr@1130	1357	"Instead of a global overflow list, use local overflow stacks") \
ysr@1130	1358	\
ysr@1114	1359	product(bool, ParGCTrimOverflow, true, \
ysr@1130	1360	"Eagerly trim the local overflow lists (when ParGCUseLocalOverflow") \
ysr@1114	1361	\
ysr@969	1362	notproduct(bool, ParGCWorkQueueOverflowALot, false, \
ysr@969	1363	"Whether we should simulate work queue overflow in ParNew") \
ysr@969	1364	\
ysr@969	1365	notproduct(uintx, ParGCWorkQueueOverflowInterval, 1000, \
phh@1499	1366	"An `interval' counter that determines how frequently " \
phh@1499	1367	"we simulate overflow; a smaller number increases frequency") \
ysr@969	1368	\
ysr@969	1369	product(uintx, ParGCDesiredObjsFromOverflowList, 20, \
duke@435	1370	"The desired number of objects to claim from the overflow list") \
duke@435	1371	\
ysr@1580	1372	product(uintx, CMSParPromoteBlocksToClaim, 16, \
duke@435	1373	"Number of blocks to attempt to claim when refilling CMS LAB for "\
duke@435	1374	"parallel GC.") \
duke@435	1375	\
ysr@1580	1376	product(uintx, OldPLABWeight, 50, \
ysr@1580	1377	"Percentage (0-100) used to weight the current sample when" \
ysr@1580	1378	"computing exponentially decaying average for resizing CMSParPromoteBlocksToClaim.") \
ysr@1580	1379	\
ysr@1580	1380	product(bool, ResizeOldPLAB, true, \
ysr@1580	1381	"Dynamically resize (old gen) promotion labs") \
ysr@1580	1382	\
ysr@1580	1383	product(bool, PrintOldPLAB, false, \
ysr@1580	1384	"Print (old gen) promotion labs sizing decisions") \
ysr@1580	1385	\
ysr@1580	1386	product(uintx, CMSOldPLABMin, 16, \
ysr@1580	1387	"Min size of CMS gen promotion lab caches per worker per blksize")\
ysr@1580	1388	\
ysr@1580	1389	product(uintx, CMSOldPLABMax, 1024, \
ysr@1580	1390	"Max size of CMS gen promotion lab caches per worker per blksize")\
ysr@1580	1391	\
ysr@1580	1392	product(uintx, CMSOldPLABNumRefills, 4, \
ysr@1580	1393	"Nominal number of refills of CMS gen promotion lab cache" \
ysr@1580	1394	" per worker per block size") \
ysr@1580	1395	\
ysr@1580	1396	product(bool, CMSOldPLABResizeQuicker, false, \
ysr@1580	1397	"Whether to react on-the-fly during a scavenge to a sudden" \
ysr@1580	1398	" change in block demand rate") \
ysr@1580	1399	\
ysr@1580	1400	product(uintx, CMSOldPLABToleranceFactor, 4, \
ysr@1580	1401	"The tolerance of the phase-change detector for on-the-fly" \
ysr@1580	1402	" PLAB resizing during a scavenge") \
ysr@1580	1403	\
ysr@1580	1404	product(uintx, CMSOldPLABReactivityFactor, 2, \
ysr@1580	1405	"The gain in the feedback loop for on-the-fly PLAB resizing" \
ysr@1580	1406	" during a scavenge") \
ysr@1580	1407	\
ysr@1580	1408	product(uintx, CMSOldPLABReactivityCeiling, 10, \
ysr@1580	1409	"The clamping of the gain in the feedback loop for on-the-fly" \
ysr@1580	1410	" PLAB resizing during a scavenge") \
ysr@1580	1411	\
duke@435	1412	product(bool, AlwaysPreTouch, false, \
duke@435	1413	"It forces all freshly committed pages to be pre-touched.") \
duke@435	1414	\
duke@435	1415	product(bool, CMSUseOldDefaults, false, \
phh@1499	1416	"A flag temporarily introduced to allow reverting to some " \
phh@1499	1417	"older default settings; older as of 6.0") \
duke@435	1418	\
duke@435	1419	product(intx, CMSYoungGenPerWorker, 16*M, \
duke@435	1420	"The amount of young gen chosen by default per GC worker " \
phh@1499	1421	"thread available") \
duke@435	1422	\
ysr@777	1423	product(bool, GCOverheadReporting, false, \
ysr@777	1424	"Enables the GC overhead reporting facility") \
ysr@777	1425	\
ysr@777	1426	product(intx, GCOverheadReportingPeriodMS, 100, \
ysr@777	1427	"Reporting period for conc GC overhead reporting, in ms ") \
ysr@777	1428	\
duke@435	1429	product(bool, CMSIncrementalMode, false, \
duke@435	1430	"Whether CMS GC should operate in \"incremental\" mode") \
duke@435	1431	\
duke@435	1432	product(uintx, CMSIncrementalDutyCycle, 10, \
duke@435	1433	"CMS incremental mode duty cycle (a percentage, 0-100). If" \
duke@435	1434	"CMSIncrementalPacing is enabled, then this is just the initial" \
duke@435	1435	"value") \
duke@435	1436	\
duke@435	1437	product(bool, CMSIncrementalPacing, true, \
duke@435	1438	"Whether the CMS incremental mode duty cycle should be " \
duke@435	1439	"automatically adjusted") \
duke@435	1440	\
duke@435	1441	product(uintx, CMSIncrementalDutyCycleMin, 0, \
phh@1499	1442	"Lower bound on the duty cycle when CMSIncrementalPacing is " \
phh@1499	1443	"enabled (a percentage, 0-100)") \
duke@435	1444	\
duke@435	1445	product(uintx, CMSIncrementalSafetyFactor, 10, \
phh@1499	1446	"Percentage (0-100) used to add conservatism when computing the " \
phh@1499	1447	"duty cycle") \
duke@435	1448	\
duke@435	1449	product(uintx, CMSIncrementalOffset, 0, \
duke@435	1450	"Percentage (0-100) by which the CMS incremental mode duty cycle" \
phh@1499	1451	" is shifted to the right within the period between young GCs") \
duke@435	1452	\
ysr@1580	1453	product(uintx, CMSExpAvgFactor, 50, \
ysr@1580	1454	"Percentage (0-100) used to weight the current sample when" \
ysr@1580	1455	"computing exponential averages for CMS statistics.") \
ysr@1580	1456	\
ysr@1580	1457	product(uintx, CMS_FLSWeight, 75, \
ysr@1580	1458	"Percentage (0-100) used to weight the current sample when" \
ysr@1580	1459	"computing exponentially decating averages for CMS FLS statistics.") \
ysr@1580	1460	\
ysr@1580	1461	product(uintx, CMS_FLSPadding, 1, \
ysr@1580	1462	"The multiple of deviation from mean to use for buffering" \
duke@435	1463	"against volatility in free list demand.") \
duke@435	1464	\
duke@435	1465	product(uintx, FLSCoalescePolicy, 2, \
duke@435	1466	"CMS: Aggression level for coalescing, increasing from 0 to 4") \
duke@435	1467	\
ysr@1580	1468	product(bool, FLSAlwaysCoalesceLarge, false, \
ysr@1580	1469	"CMS: Larger free blocks are always available for coalescing") \
ysr@1580	1470	\
ysr@1580	1471	product(double, FLSLargestBlockCoalesceProximity, 0.99, \
ysr@1580	1472	"CMS: the smaller the percentage the greater the coalition force")\
ysr@1580	1473	\
ysr@1580	1474	product(double, CMSSmallCoalSurplusPercent, 1.05, \
ysr@1580	1475	"CMS: the factor by which to inflate estimated demand of small" \
ysr@1580	1476	" block sizes to prevent coalescing with an adjoining block") \
ysr@1580	1477	\
ysr@1580	1478	product(double, CMSLargeCoalSurplusPercent, 0.95, \
ysr@1580	1479	"CMS: the factor by which to inflate estimated demand of large" \
ysr@1580	1480	" block sizes to prevent coalescing with an adjoining block") \
ysr@1580	1481	\
ysr@1580	1482	product(double, CMSSmallSplitSurplusPercent, 1.10, \
ysr@1580	1483	"CMS: the factor by which to inflate estimated demand of small" \
ysr@1580	1484	" block sizes to prevent splitting to supply demand for smaller" \
ysr@1580	1485	" blocks") \
ysr@1580	1486	\
ysr@1580	1487	product(double, CMSLargeSplitSurplusPercent, 1.00, \
ysr@1580	1488	"CMS: the factor by which to inflate estimated demand of large" \
ysr@1580	1489	" block sizes to prevent splitting to supply demand for smaller" \
ysr@1580	1490	" blocks") \
ysr@1580	1491	\
ysr@1580	1492	product(bool, CMSExtrapolateSweep, false, \
ysr@1580	1493	"CMS: cushion for block demand during sweep") \
ysr@1580	1494	\
ysr@1580	1495	product(uintx, CMS_SweepWeight, 75, \
phh@1499	1496	"Percentage (0-100) used to weight the current sample when " \
phh@1499	1497	"computing exponentially decaying average for inter-sweep " \
phh@1499	1498	"duration") \
duke@435	1499	\
ysr@1580	1500	product(uintx, CMS_SweepPadding, 1, \
phh@1499	1501	"The multiple of deviation from mean to use for buffering " \
duke@435	1502	"against volatility in inter-sweep duration.") \
duke@435	1503	\
duke@435	1504	product(uintx, CMS_SweepTimerThresholdMillis, 10, \
duke@435	1505	"Skip block flux-rate sampling for an epoch unless inter-sweep " \
phh@1499	1506	"duration exceeds this threhold in milliseconds") \
duke@435	1507	\
duke@435	1508	develop(bool, CMSTraceIncrementalMode, false, \
duke@435	1509	"Trace CMS incremental mode") \
duke@435	1510	\
duke@435	1511	develop(bool, CMSTraceIncrementalPacing, false, \
duke@435	1512	"Trace CMS incremental mode pacing computation") \
duke@435	1513	\
duke@435	1514	develop(bool, CMSTraceThreadState, false, \
duke@435	1515	"Trace the CMS thread state (enable the trace_state() method)") \
duke@435	1516	\
duke@435	1517	product(bool, CMSClassUnloadingEnabled, false, \
duke@435	1518	"Whether class unloading enabled when using CMS GC") \
duke@435	1519	\
ysr@529	1520	product(uintx, CMSClassUnloadingMaxInterval, 0, \
ysr@529	1521	"When CMS class unloading is enabled, the maximum CMS cycle count"\
ysr@529	1522	" for which classes may not be unloaded") \
ysr@529	1523	\
duke@435	1524	product(bool, CMSCompactWhenClearAllSoftRefs, true, \
duke@435	1525	"Compact when asked to collect CMS gen with clear_all_soft_refs") \
duke@435	1526	\
duke@435	1527	product(bool, UseCMSCompactAtFullCollection, true, \
duke@435	1528	"Use mark sweep compact at full collections") \
duke@435	1529	\
duke@435	1530	product(uintx, CMSFullGCsBeforeCompaction, 0, \
duke@435	1531	"Number of CMS full collection done before compaction if > 0") \
duke@435	1532	\
duke@435	1533	develop(intx, CMSDictionaryChoice, 0, \
duke@435	1534	"Use BinaryTreeDictionary as default in the CMS generation") \
duke@435	1535	\
duke@435	1536	product(uintx, CMSIndexedFreeListReplenish, 4, \
duke@435	1537	"Replenish and indexed free list with this number of chunks") \
duke@435	1538	\
ysr@1580	1539	product(bool, CMSReplenishIntermediate, true, \
ysr@1580	1540	"Replenish all intermediate free-list caches") \
ysr@1580	1541	\
ysr@1580	1542	product(bool, CMSSplitIndexedFreeListBlocks, true, \
ysr@1580	1543	"When satisfying batched demand, splot blocks from the " \
ysr@1580	1544	"IndexedFreeList whose size is a multiple of requested size") \
ysr@1580	1545	\
duke@435	1546	product(bool, CMSLoopWarn, false, \
duke@435	1547	"Warn in case of excessive CMS looping") \
duke@435	1548	\
duke@435	1549	develop(bool, CMSOverflowEarlyRestoration, false, \
duke@435	1550	"Whether preserved marks should be restored early") \
duke@435	1551	\
jmasa@1719	1552	product(uintx, MarkStackSize, NOT_LP64(32*K) LP64_ONLY(4*M), \
jmasa@1719	1553	"Size of marking stack") \
jmasa@1719	1554	\
jmasa@1719	1555	product(uintx, MarkStackSizeMax, NOT_LP64(4*M) LP64_ONLY(512*M), \
jmasa@1719	1556	"Max size of marking stack") \
duke@435	1557	\
duke@435	1558	notproduct(bool, CMSMarkStackOverflowALot, false, \
duke@435	1559	"Whether we should simulate frequent marking stack / work queue" \
duke@435	1560	" overflow") \
duke@435	1561	\
ysr@969	1562	notproduct(uintx, CMSMarkStackOverflowInterval, 1000, \
ysr@969	1563	"An `interval' counter that determines how frequently" \
duke@435	1564	" we simulate overflow; a smaller number increases frequency") \
duke@435	1565	\
duke@435	1566	product(uintx, CMSMaxAbortablePrecleanLoops, 0, \
duke@435	1567	"(Temporary, subject to experimentation)" \
duke@435	1568	"Maximum number of abortable preclean iterations, if > 0") \
duke@435	1569	\
duke@435	1570	product(intx, CMSMaxAbortablePrecleanTime, 5000, \
duke@435	1571	"(Temporary, subject to experimentation)" \
duke@435	1572	"Maximum time in abortable preclean in ms") \
duke@435	1573	\
duke@435	1574	product(uintx, CMSAbortablePrecleanMinWorkPerIteration, 100, \
duke@435	1575	"(Temporary, subject to experimentation)" \
duke@435	1576	"Nominal minimum work per abortable preclean iteration") \
duke@435	1577	\
duke@435	1578	product(intx, CMSAbortablePrecleanWaitMillis, 100, \
duke@435	1579	"(Temporary, subject to experimentation)" \
duke@435	1580	" Time that we sleep between iterations when not given" \
duke@435	1581	" enough work per iteration") \
duke@435	1582	\
duke@435	1583	product(uintx, CMSRescanMultiple, 32, \
duke@435	1584	"Size (in cards) of CMS parallel rescan task") \
duke@435	1585	\
duke@435	1586	product(uintx, CMSConcMarkMultiple, 32, \
duke@435	1587	"Size (in cards) of CMS concurrent MT marking task") \
duke@435	1588	\
duke@435	1589	product(uintx, CMSRevisitStackSize, 1*M, \
duke@435	1590	"Size of CMS KlassKlass revisit stack") \
duke@435	1591	\
duke@435	1592	product(bool, CMSAbortSemantics, false, \
duke@435	1593	"Whether abort-on-overflow semantics is implemented") \
duke@435	1594	\
duke@435	1595	product(bool, CMSParallelRemarkEnabled, true, \
duke@435	1596	"Whether parallel remark enabled (only if ParNewGC)") \
duke@435	1597	\
duke@435	1598	product(bool, CMSParallelSurvivorRemarkEnabled, true, \
duke@435	1599	"Whether parallel remark of survivor space" \
duke@435	1600	" enabled (effective only if CMSParallelRemarkEnabled)") \
duke@435	1601	\
duke@435	1602	product(bool, CMSPLABRecordAlways, true, \
duke@435	1603	"Whether to always record survivor space PLAB bdries" \
duke@435	1604	" (effective only if CMSParallelSurvivorRemarkEnabled)") \
duke@435	1605	\
duke@435	1606	product(bool, CMSConcurrentMTEnabled, true, \
duke@435	1607	"Whether multi-threaded concurrent work enabled (if ParNewGC)") \
duke@435	1608	\
duke@435	1609	product(bool, CMSPermGenPrecleaningEnabled, true, \
duke@435	1610	"Whether concurrent precleaning enabled in perm gen" \
duke@435	1611	" (effective only when CMSPrecleaningEnabled is true)") \
duke@435	1612	\
duke@435	1613	product(bool, CMSPrecleaningEnabled, true, \
duke@435	1614	"Whether concurrent precleaning enabled") \
duke@435	1615	\
duke@435	1616	product(uintx, CMSPrecleanIter, 3, \
duke@435	1617	"Maximum number of precleaning iteration passes") \
duke@435	1618	\
duke@435	1619	product(uintx, CMSPrecleanNumerator, 2, \
duke@435	1620	"CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \
duke@435	1621	" ratio") \
duke@435	1622	\
duke@435	1623	product(uintx, CMSPrecleanDenominator, 3, \
duke@435	1624	"CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \
duke@435	1625	" ratio") \
duke@435	1626	\
ysr@887	1627	product(bool, CMSPrecleanRefLists1, true, \
duke@435	1628	"Preclean ref lists during (initial) preclean phase") \
duke@435	1629	\
duke@435	1630	product(bool, CMSPrecleanRefLists2, false, \
duke@435	1631	"Preclean ref lists during abortable preclean phase") \
duke@435	1632	\
duke@435	1633	product(bool, CMSPrecleanSurvivors1, false, \
duke@435	1634	"Preclean survivors during (initial) preclean phase") \
duke@435	1635	\
duke@435	1636	product(bool, CMSPrecleanSurvivors2, true, \
duke@435	1637	"Preclean survivors during abortable preclean phase") \
duke@435	1638	\
duke@435	1639	product(uintx, CMSPrecleanThreshold, 1000, \
duke@435	1640	"Don't re-iterate if #dirty cards less than this") \
duke@435	1641	\
duke@435	1642	product(bool, CMSCleanOnEnter, true, \
duke@435	1643	"Clean-on-enter optimization for reducing number of dirty cards") \
duke@435	1644	\
duke@435	1645	product(uintx, CMSRemarkVerifyVariant, 1, \
duke@435	1646	"Choose variant (1,2) of verification following remark") \
duke@435	1647	\
duke@435	1648	product(uintx, CMSScheduleRemarkEdenSizeThreshold, 2*M, \
duke@435	1649	"If Eden used is below this value, don't try to schedule remark") \
duke@435	1650	\
duke@435	1651	product(uintx, CMSScheduleRemarkEdenPenetration, 50, \
duke@435	1652	"The Eden occupancy % at which to try and schedule remark pause") \
duke@435	1653	\
duke@435	1654	product(uintx, CMSScheduleRemarkSamplingRatio, 5, \
duke@435	1655	"Start sampling Eden top at least before yg occupancy reaches" \
duke@435	1656	" 1/<ratio> of the size at which we plan to schedule remark") \
duke@435	1657	\
duke@435	1658	product(uintx, CMSSamplingGrain, 16*K, \
duke@435	1659	"The minimum distance between eden samples for CMS (see above)") \
duke@435	1660	\
duke@435	1661	product(bool, CMSScavengeBeforeRemark, false, \
duke@435	1662	"Attempt scavenge before the CMS remark step") \
duke@435	1663	\
duke@435	1664	develop(bool, CMSTraceSweeper, false, \
duke@435	1665	"Trace some actions of the CMS sweeper") \
duke@435	1666	\
duke@435	1667	product(uintx, CMSWorkQueueDrainThreshold, 10, \
duke@435	1668	"Don't drain below this size per parallel worker/thief") \
duke@435	1669	\
duke@435	1670	product(intx, CMSWaitDuration, 2000, \
duke@435	1671	"Time in milliseconds that CMS thread waits for young GC") \
duke@435	1672	\
duke@435	1673	product(bool, CMSYield, true, \
duke@435	1674	"Yield between steps of concurrent mark & sweep") \
duke@435	1675	\
duke@435	1676	product(uintx, CMSBitMapYieldQuantum, 10*M, \
duke@435	1677	"Bitmap operations should process at most this many bits" \
duke@435	1678	"between yields") \
duke@435	1679	\
ysr@1580	1680	product(bool, CMSDumpAtPromotionFailure, false, \
ysr@1580	1681	"Dump useful information about the state of the CMS old " \
ysr@1580	1682	" generation upon a promotion failure.") \
ysr@1580	1683	\
ysr@1580	1684	product(bool, CMSPrintChunksInDump, false, \
ysr@1580	1685	"In a dump enabled by CMSDumpAtPromotionFailure, include " \
ysr@1580	1686	" more detailed information about the free chunks.") \
ysr@1580	1687	\
ysr@1580	1688	product(bool, CMSPrintObjectsInDump, false, \
ysr@1580	1689	"In a dump enabled by CMSDumpAtPromotionFailure, include " \
ysr@1580	1690	" more detailed information about the allocated objects.") \
ysr@1580	1691	\
duke@435	1692	diagnostic(bool, FLSVerifyAllHeapReferences, false, \
duke@435	1693	"Verify that all refs across the FLS boundary " \
duke@435	1694	" are to valid objects") \
duke@435	1695	\
duke@435	1696	diagnostic(bool, FLSVerifyLists, false, \
duke@435	1697	"Do lots of (expensive) FreeListSpace verification") \
duke@435	1698	\
duke@435	1699	diagnostic(bool, FLSVerifyIndexTable, false, \
duke@435	1700	"Do lots of (expensive) FLS index table verification") \
duke@435	1701	\
duke@435	1702	develop(bool, FLSVerifyDictionary, false, \
duke@435	1703	"Do lots of (expensive) FLS dictionary verification") \
duke@435	1704	\
duke@435	1705	develop(bool, VerifyBlockOffsetArray, false, \
duke@435	1706	"Do (expensive!) block offset array verification") \
duke@435	1707	\
ysr@2071	1708	product(bool, BlockOffsetArrayUseUnallocatedBlock, false, \
duke@435	1709	"Maintain _unallocated_block in BlockOffsetArray" \
duke@435	1710	" (currently applicable only to CMS collector)") \
duke@435	1711	\
duke@435	1712	develop(bool, TraceCMSState, false, \
duke@435	1713	"Trace the state of the CMS collection") \
duke@435	1714	\
duke@435	1715	product(intx, RefDiscoveryPolicy, 0, \
duke@435	1716	"Whether reference-based(0) or referent-based(1)") \
duke@435	1717	\
duke@435	1718	product(bool, ParallelRefProcEnabled, false, \
duke@435	1719	"Enable parallel reference processing whenever possible") \
duke@435	1720	\
duke@435	1721	product(bool, ParallelRefProcBalancingEnabled, true, \
duke@435	1722	"Enable balancing of reference processing queues") \
duke@435	1723	\
duke@435	1724	product(intx, CMSTriggerRatio, 80, \
duke@435	1725	"Percentage of MinHeapFreeRatio in CMS generation that is " \
phh@1499	1726	"allocated before a CMS collection cycle commences") \
duke@435	1727	\
ysr@529	1728	product(intx, CMSTriggerPermRatio, 80, \
phh@1499	1729	"Percentage of MinHeapFreeRatio in the CMS perm generation that " \
phh@1499	1730	"is allocated before a CMS collection cycle commences, that " \
phh@1499	1731	"also collects the perm generation") \
ysr@529	1732	\
ysr@529	1733	product(uintx, CMSBootstrapOccupancy, 50, \
duke@435	1734	"Percentage CMS generation occupancy at which to " \
phh@1499	1735	"initiate CMS collection for bootstrapping collection stats") \
duke@435	1736	\
duke@435	1737	product(intx, CMSInitiatingOccupancyFraction, -1, \
duke@435	1738	"Percentage CMS generation occupancy to start a CMS collection " \
phh@1499	1739	"cycle. A negative value means that CMSTriggerRatio is used") \
ysr@529	1740	\
tonyp@1718	1741	product(uintx, InitiatingHeapOccupancyPercent, 45, \
tonyp@1718	1742	"Percentage of the (entire) heap occupancy to start a " \
tonyp@1718	1743	"concurrent GC cycle. It us used by GCs that trigger a " \
tonyp@1718	1744	"concurrent GC cycle based on the occupancy of the entire heap, " \
tonyp@1718	1745	"not just one of the generations (e.g., G1). A value of 0 " \
tonyp@1718	1746	"denotes 'do constant GC cycles'.") \
tonyp@1718	1747	\
ysr@529	1748	product(intx, CMSInitiatingPermOccupancyFraction, -1, \
phh@1499	1749	"Percentage CMS perm generation occupancy to start a " \
phh@1499	1750	"CMScollection cycle. A negative value means that " \
phh@1499	1751	"CMSTriggerPermRatio is used") \
duke@435	1752	\
duke@435	1753	product(bool, UseCMSInitiatingOccupancyOnly, false, \
duke@435	1754	"Only use occupancy as a crierion for starting a CMS collection") \
duke@435	1755	\
ysr@529	1756	product(intx, CMSIsTooFullPercentage, 98, \
phh@1499	1757	"An absolute ceiling above which CMS will always consider the " \
phh@1499	1758	"perm gen ripe for collection") \
ysr@529	1759	\
duke@435	1760	develop(bool, CMSTestInFreeList, false, \
duke@435	1761	"Check if the coalesced range is already in the " \
phh@1499	1762	"free lists as claimed") \
duke@435	1763	\
duke@435	1764	notproduct(bool, CMSVerifyReturnedBytes, false, \
duke@435	1765	"Check that all the garbage collected was returned to the " \
duke@435	1766	"free lists.") \
duke@435	1767	\
duke@435	1768	notproduct(bool, ScavengeALot, false, \
duke@435	1769	"Force scavenge at every Nth exit from the runtime system " \
duke@435	1770	"(N=ScavengeALotInterval)") \
duke@435	1771	\
duke@435	1772	develop(bool, FullGCALot, false, \
duke@435	1773	"Force full gc at every Nth exit from the runtime system " \
duke@435	1774	"(N=FullGCALotInterval)") \
duke@435	1775	\
duke@435	1776	notproduct(bool, GCALotAtAllSafepoints, false, \
duke@435	1777	"Enforce ScavengeALot/GCALot at all potential safepoints") \
duke@435	1778	\
duke@435	1779	product(bool, HandlePromotionFailure, true, \
phh@1499	1780	"The youngest generation collection does not require " \
phh@1499	1781	"a guarantee of full promotion of all live objects.") \
duke@435	1782	\
ysr@1580	1783	product(bool, PrintPromotionFailure, false, \
ysr@1580	1784	"Print additional diagnostic information following " \
ysr@1580	1785	" promotion failure") \
ysr@1580	1786	\
duke@435	1787	notproduct(bool, PromotionFailureALot, false, \
duke@435	1788	"Use promotion failure handling on every youngest generation " \
duke@435	1789	"collection") \
duke@435	1790	\
duke@435	1791	develop(uintx, PromotionFailureALotCount, 1000, \
duke@435	1792	"Number of promotion failures occurring at ParGCAllocBuffer" \
duke@435	1793	"refill attempts (ParNew) or promotion attempts " \
duke@435	1794	"(other young collectors) ") \
duke@435	1795	\
duke@435	1796	develop(uintx, PromotionFailureALotInterval, 5, \
duke@435	1797	"Total collections between promotion failures alot") \
duke@435	1798	\
duke@435	1799	develop(intx, WorkStealingSleepMillis, 1, \
duke@435	1800	"Sleep time when sleep is used for yields") \
duke@435	1801	\
duke@435	1802	develop(uintx, WorkStealingYieldsBeforeSleep, 1000, \
duke@435	1803	"Number of yields before a sleep is done during workstealing") \
duke@435	1804	\
jmasa@981	1805	develop(uintx, WorkStealingHardSpins, 4096, \
jmasa@981	1806	"Number of iterations in a spin loop between checks on " \
jmasa@981	1807	"time out of hard spin") \
jmasa@981	1808	\
jmasa@981	1809	develop(uintx, WorkStealingSpinToYieldRatio, 10, \
jmasa@981	1810	"Ratio of hard spins to calls to yield") \
jmasa@981	1811	\
ysr@969	1812	product(uintx, PreserveMarkStackSize, 1024, \
phh@1499	1813	"Size for stack used in promotion failure handling") \
duke@435	1814	\
jcoomes@1746	1815	develop(uintx, ObjArrayMarkingStride, 512, \
jcoomes@1746	1816	"Number of ObjArray elements to push onto the marking stack" \
jcoomes@1746	1817	"before pushing a continuation entry") \
jcoomes@1746	1818	\
duke@435	1819	product_pd(bool, UseTLAB, "Use thread-local object allocation") \
duke@435	1820	\
duke@435	1821	product_pd(bool, ResizeTLAB, \
duke@435	1822	"Dynamically resize tlab size for threads") \
duke@435	1823	\
duke@435	1824	product(bool, ZeroTLAB, false, \
duke@435	1825	"Zero out the newly created TLAB") \
duke@435	1826	\
ysr@777	1827	product(bool, FastTLABRefill, true, \
ysr@777	1828	"Use fast TLAB refill code") \
ysr@777	1829	\
duke@435	1830	product(bool, PrintTLAB, false, \
duke@435	1831	"Print various TLAB related information") \
duke@435	1832	\
duke@435	1833	product(bool, TLABStats, true, \
duke@435	1834	"Print various TLAB related information") \
duke@435	1835	\
ysr@1376	1836	product(bool, PrintRevisitStats, false, \
ysr@1376	1837	"Print revisit (klass and MDO) stack related information") \
ysr@1376	1838	\
duke@435	1839	product_pd(bool, NeverActAsServerClassMachine, \
duke@435	1840	"Never act like a server-class machine") \
duke@435	1841	\
duke@435	1842	product(bool, AlwaysActAsServerClassMachine, false, \
duke@435	1843	"Always act like a server-class machine") \
duke@435	1844	\
phh@1499	1845	product_pd(uint64_t, MaxRAM, \
phh@1499	1846	"Real memory size (in bytes) used to set maximum heap size") \
phh@1499	1847	\
phh@1499	1848	product(uintx, ErgoHeapSizeLimit, 0, \
phh@1499	1849	"Maximum ergonomically set heap size (in bytes); zero means use " \
phh@1499	1850	"MaxRAM / MaxRAMFraction") \
phh@1499	1851	\
phh@1499	1852	product(uintx, MaxRAMFraction, 4, \
phh@1499	1853	"Maximum fraction (1/n) of real memory used for maximum heap " \
phh@1499	1854	"size") \
duke@435	1855	\
duke@435	1856	product(uintx, DefaultMaxRAMFraction, 4, \
phh@1499	1857	"Maximum fraction (1/n) of real memory used for maximum heap " \
phh@1499	1858	"size; deprecated: to be renamed to MaxRAMFraction") \
phh@1499	1859	\
phh@1499	1860	product(uintx, MinRAMFraction, 2, \
phh@1499	1861	"Minimum fraction (1/n) of real memory used for maxmimum heap " \
phh@1499	1862	"size on systems with small physical memory size") \
phh@1499	1863	\
phh@1499	1864	product(uintx, InitialRAMFraction, 64, \
phh@1499	1865	"Fraction (1/n) of real memory used for initial heap size") \
duke@435	1866	\
duke@435	1867	product(bool, UseAutoGCSelectPolicy, false, \
duke@435	1868	"Use automatic collection selection policy") \
duke@435	1869	\
duke@435	1870	product(uintx, AutoGCSelectPauseMillis, 5000, \
duke@435	1871	"Automatic GC selection pause threshhold in ms") \
duke@435	1872	\
duke@435	1873	product(bool, UseAdaptiveSizePolicy, true, \
duke@435	1874	"Use adaptive generation sizing policies") \
duke@435	1875	\
duke@435	1876	product(bool, UsePSAdaptiveSurvivorSizePolicy, true, \
duke@435	1877	"Use adaptive survivor sizing policies") \
duke@435	1878	\
duke@435	1879	product(bool, UseAdaptiveGenerationSizePolicyAtMinorCollection, true, \
duke@435	1880	"Use adaptive young-old sizing policies at minor collections") \
duke@435	1881	\
duke@435	1882	product(bool, UseAdaptiveGenerationSizePolicyAtMajorCollection, true, \
duke@435	1883	"Use adaptive young-old sizing policies at major collections") \
duke@435	1884	\
duke@435	1885	product(bool, UseAdaptiveSizePolicyWithSystemGC, false, \
duke@435	1886	"Use statistics from System.GC for adaptive size policy") \
duke@435	1887	\
duke@435	1888	product(bool, UseAdaptiveGCBoundary, false, \
duke@435	1889	"Allow young-old boundary to move") \
duke@435	1890	\
duke@435	1891	develop(bool, TraceAdaptiveGCBoundary, false, \
duke@435	1892	"Trace young-old boundary moves") \
duke@435	1893	\
duke@435	1894	develop(intx, PSAdaptiveSizePolicyResizeVirtualSpaceAlot, -1, \
duke@435	1895	"Resize the virtual spaces of the young or old generations") \
duke@435	1896	\
duke@435	1897	product(uintx, AdaptiveSizeThroughPutPolicy, 0, \
duke@435	1898	"Policy for changeing generation size for throughput goals") \
duke@435	1899	\
duke@435	1900	product(uintx, AdaptiveSizePausePolicy, 0, \
duke@435	1901	"Policy for changing generation size for pause goals") \
duke@435	1902	\
duke@435	1903	develop(bool, PSAdjustTenuredGenForMinorPause, false, \
duke@435	1904	"Adjust tenured generation to achive a minor pause goal") \
duke@435	1905	\
duke@435	1906	develop(bool, PSAdjustYoungGenForMajorPause, false, \
duke@435	1907	"Adjust young generation to achive a major pause goal") \
duke@435	1908	\
duke@435	1909	product(uintx, AdaptiveSizePolicyInitializingSteps, 20, \
duke@435	1910	"Number of steps where heuristics is used before data is used") \
duke@435	1911	\
duke@435	1912	develop(uintx, AdaptiveSizePolicyReadyThreshold, 5, \
duke@435	1913	"Number of collections before the adaptive sizing is started") \
duke@435	1914	\
duke@435	1915	product(uintx, AdaptiveSizePolicyOutputInterval, 0, \
phh@1499	1916	"Collecton interval for printing information; zero => never") \
duke@435	1917	\
duke@435	1918	product(bool, UseAdaptiveSizePolicyFootprintGoal, true, \
duke@435	1919	"Use adaptive minimum footprint as a goal") \
duke@435	1920	\
duke@435	1921	product(uintx, AdaptiveSizePolicyWeight, 10, \
duke@435	1922	"Weight given to exponential resizing, between 0 and 100") \
duke@435	1923	\
duke@435	1924	product(uintx, AdaptiveTimeWeight, 25, \
duke@435	1925	"Weight given to time in adaptive policy, between 0 and 100") \
duke@435	1926	\
duke@435	1927	product(uintx, PausePadding, 1, \
duke@435	1928	"How much buffer to keep for pause time") \
duke@435	1929	\
duke@435	1930	product(uintx, PromotedPadding, 3, \
duke@435	1931	"How much buffer to keep for promotion failure") \
duke@435	1932	\
duke@435	1933	product(uintx, SurvivorPadding, 3, \
duke@435	1934	"How much buffer to keep for survivor overflow") \
duke@435	1935	\
duke@435	1936	product(uintx, AdaptivePermSizeWeight, 20, \
duke@435	1937	"Weight for perm gen exponential resizing, between 0 and 100") \
duke@435	1938	\
duke@435	1939	product(uintx, PermGenPadding, 3, \
duke@435	1940	"How much buffer to keep for perm gen sizing") \
duke@435	1941	\
duke@435	1942	product(uintx, ThresholdTolerance, 10, \
duke@435	1943	"Allowed collection cost difference between generations") \
duke@435	1944	\
duke@435	1945	product(uintx, AdaptiveSizePolicyCollectionCostMargin, 50, \
phh@1499	1946	"If collection costs are within margin, reduce both by full " \
phh@1499	1947	"delta") \
duke@435	1948	\
duke@435	1949	product(uintx, YoungGenerationSizeIncrement, 20, \
duke@435	1950	"Adaptive size percentage change in young generation") \
duke@435	1951	\
duke@435	1952	product(uintx, YoungGenerationSizeSupplement, 80, \
duke@435	1953	"Supplement to YoungedGenerationSizeIncrement used at startup") \
duke@435	1954	\
duke@435	1955	product(uintx, YoungGenerationSizeSupplementDecay, 8, \
duke@435	1956	"Decay factor to YoungedGenerationSizeSupplement") \
duke@435	1957	\
duke@435	1958	product(uintx, TenuredGenerationSizeIncrement, 20, \
duke@435	1959	"Adaptive size percentage change in tenured generation") \
duke@435	1960	\
duke@435	1961	product(uintx, TenuredGenerationSizeSupplement, 80, \
duke@435	1962	"Supplement to TenuredGenerationSizeIncrement used at startup") \
duke@435	1963	\
duke@435	1964	product(uintx, TenuredGenerationSizeSupplementDecay, 2, \
duke@435	1965	"Decay factor to TenuredGenerationSizeIncrement") \
duke@435	1966	\
iveresov@2138	1967	product(uintx, MaxGCPauseMillis, max_uintx, \
johnc@1186	1968	"Adaptive size policy maximum GC pause time goal in msec, " \
johnc@1186	1969	"or (G1 Only) the max. GC time per MMU time slice") \
johnc@1186	1970	\
tonyp@1965	1971	product(uintx, GCPauseIntervalMillis, 0, \
johnc@1186	1972	"Time slice for MMU specification") \
duke@435	1973	\
duke@435	1974	product(uintx, MaxGCMinorPauseMillis, max_uintx, \
duke@435	1975	"Adaptive size policy maximum GC minor pause time goal in msec") \
duke@435	1976	\
duke@435	1977	product(uintx, GCTimeRatio, 99, \
duke@435	1978	"Adaptive size policy application time to GC time ratio") \
duke@435	1979	\
duke@435	1980	product(uintx, AdaptiveSizeDecrementScaleFactor, 4, \
duke@435	1981	"Adaptive size scale down factor for shrinking") \
duke@435	1982	\
duke@435	1983	product(bool, UseAdaptiveSizeDecayMajorGCCost, true, \
duke@435	1984	"Adaptive size decays the major cost for long major intervals") \
duke@435	1985	\
duke@435	1986	product(uintx, AdaptiveSizeMajorGCDecayTimeScale, 10, \
duke@435	1987	"Time scale over which major costs decay") \
duke@435	1988	\
duke@435	1989	product(uintx, MinSurvivorRatio, 3, \
duke@435	1990	"Minimum ratio of young generation/survivor space size") \
duke@435	1991	\
duke@435	1992	product(uintx, InitialSurvivorRatio, 8, \
duke@435	1993	"Initial ratio of eden/survivor space size") \
duke@435	1994	\
duke@435	1995	product(uintx, BaseFootPrintEstimate, 256*M, \
duke@435	1996	"Estimate of footprint other than Java Heap") \
duke@435	1997	\
duke@435	1998	product(bool, UseGCOverheadLimit, true, \
duke@435	1999	"Use policy to limit of proportion of time spent in GC " \
duke@435	2000	"before an OutOfMemory error is thrown") \
duke@435	2001	\
duke@435	2002	product(uintx, GCTimeLimit, 98, \
duke@435	2003	"Limit of proportion of time spent in GC before an OutOfMemory" \
duke@435	2004	"error is thrown (used with GCHeapFreeLimit)") \
duke@435	2005	\
duke@435	2006	product(uintx, GCHeapFreeLimit, 2, \
duke@435	2007	"Minimum percentage of free space after a full GC before an " \
duke@435	2008	"OutOfMemoryError is thrown (used with GCTimeLimit)") \
duke@435	2009	\
duke@435	2010	develop(uintx, AdaptiveSizePolicyGCTimeLimitThreshold, 5, \
duke@435	2011	"Number of consecutive collections before gc time limit fires") \
duke@435	2012	\
duke@435	2013	product(bool, PrintAdaptiveSizePolicy, false, \
duke@435	2014	"Print information about AdaptiveSizePolicy") \
duke@435	2015	\
duke@435	2016	product(intx, PrefetchCopyIntervalInBytes, -1, \
duke@435	2017	"How far ahead to prefetch destination area (<= 0 means off)") \
duke@435	2018	\
duke@435	2019	product(intx, PrefetchScanIntervalInBytes, -1, \
duke@435	2020	"How far ahead to prefetch scan area (<= 0 means off)") \
duke@435	2021	\
duke@435	2022	product(intx, PrefetchFieldsAhead, -1, \
duke@435	2023	"How many fields ahead to prefetch in oop scan (<= 0 means off)") \
duke@435	2024	\
duke@435	2025	develop(bool, UsePrefetchQueue, true, \
duke@435	2026	"Use the prefetch queue during PS promotion") \
duke@435	2027	\
duke@435	2028	diagnostic(bool, VerifyBeforeExit, trueInDebug, \
duke@435	2029	"Verify system before exiting") \
duke@435	2030	\
duke@435	2031	diagnostic(bool, VerifyBeforeGC, false, \
duke@435	2032	"Verify memory system before GC") \
duke@435	2033	\
duke@435	2034	diagnostic(bool, VerifyAfterGC, false, \
duke@435	2035	"Verify memory system after GC") \
duke@435	2036	\
duke@435	2037	diagnostic(bool, VerifyDuringGC, false, \
duke@435	2038	"Verify memory system during GC (between phases)") \
duke@435	2039	\
tonyp@825	2040	diagnostic(bool, GCParallelVerificationEnabled, true, \
tonyp@825	2041	"Enable parallel memory system verification") \
tonyp@825	2042	\
ysr@1601	2043	diagnostic(bool, DeferInitialCardMark, false, \
ysr@1601	2044	"When +ReduceInitialCardMarks, explicitly defer any that " \
ysr@1601	2045	"may arise from new_pre_store_barrier") \
ysr@1601	2046	\
duke@435	2047	diagnostic(bool, VerifyRememberedSets, false, \
duke@435	2048	"Verify GC remembered sets") \
duke@435	2049	\
duke@435	2050	diagnostic(bool, VerifyObjectStartArray, true, \
duke@435	2051	"Verify GC object start array if verify before/after") \
duke@435	2052	\
duke@435	2053	product(bool, DisableExplicitGC, false, \
duke@435	2054	"Tells whether calling System.gc() does a full GC") \
duke@435	2055	\
duke@435	2056	notproduct(bool, CheckMemoryInitialization, false, \
duke@435	2057	"Checks memory initialization") \
duke@435	2058	\
duke@435	2059	product(bool, CollectGen0First, false, \
duke@435	2060	"Collect youngest generation before each full GC") \
duke@435	2061	\
duke@435	2062	diagnostic(bool, BindCMSThreadToCPU, false, \
duke@435	2063	"Bind CMS Thread to CPU if possible") \
duke@435	2064	\
duke@435	2065	diagnostic(uintx, CPUForCMSThread, 0, \
duke@435	2066	"When BindCMSThreadToCPU is true, the CPU to bind CMS thread to") \
duke@435	2067	\
duke@435	2068	product(bool, BindGCTaskThreadsToCPUs, false, \
duke@435	2069	"Bind GCTaskThreads to CPUs if possible") \
duke@435	2070	\
duke@435	2071	product(bool, UseGCTaskAffinity, false, \
duke@435	2072	"Use worker affinity when asking for GCTasks") \
duke@435	2073	\
duke@435	2074	product(uintx, ProcessDistributionStride, 4, \
duke@435	2075	"Stride through processors when distributing processes") \
duke@435	2076	\
duke@435	2077	product(uintx, CMSCoordinatorYieldSleepCount, 10, \
duke@435	2078	"number of times the coordinator GC thread will sleep while " \
duke@435	2079	"yielding before giving up and resuming GC") \
duke@435	2080	\
duke@435	2081	product(uintx, CMSYieldSleepCount, 0, \
duke@435	2082	"number of times a GC thread (minus the coordinator) " \
duke@435	2083	"will sleep while yielding before giving up and resuming GC") \
duke@435	2084	\
duke@435	2085	/* gc tracing */ \
duke@435	2086	manageable(bool, PrintGC, false, \
duke@435	2087	"Print message at garbage collect") \
duke@435	2088	\
duke@435	2089	manageable(bool, PrintGCDetails, false, \
duke@435	2090	"Print more details at garbage collect") \
duke@435	2091	\
duke@435	2092	manageable(bool, PrintGCDateStamps, false, \
duke@435	2093	"Print date stamps at garbage collect") \
duke@435	2094	\
duke@435	2095	manageable(bool, PrintGCTimeStamps, false, \
duke@435	2096	"Print timestamps at garbage collect") \
duke@435	2097	\
duke@435	2098	product(bool, PrintGCTaskTimeStamps, false, \
duke@435	2099	"Print timestamps for individual gc worker thread tasks") \
duke@435	2100	\
duke@435	2101	develop(intx, ConcGCYieldTimeout, 0, \
duke@435	2102	"If non-zero, assert that GC threads yield within this # of ms.") \
duke@435	2103	\
duke@435	2104	notproduct(bool, TraceMarkSweep, false, \
duke@435	2105	"Trace mark sweep") \
duke@435	2106	\
duke@435	2107	product(bool, PrintReferenceGC, false, \
duke@435	2108	"Print times spent handling reference objects during GC " \
duke@435	2109	" (enabled only when PrintGCDetails)") \
duke@435	2110	\
duke@435	2111	develop(bool, TraceReferenceGC, false, \
duke@435	2112	"Trace handling of soft/weak/final/phantom references") \
duke@435	2113	\
duke@435	2114	develop(bool, TraceFinalizerRegistration, false, \
duke@435	2115	"Trace registration of final references") \
duke@435	2116	\
duke@435	2117	notproduct(bool, TraceScavenge, false, \
duke@435	2118	"Trace scavenge") \
duke@435	2119	\
duke@435	2120	product_rw(bool, TraceClassLoading, false, \
duke@435	2121	"Trace all classes loaded") \
duke@435	2122	\
duke@435	2123	product(bool, TraceClassLoadingPreorder, false, \
duke@435	2124	"Trace all classes loaded in order referenced (not loaded)") \
duke@435	2125	\
duke@435	2126	product_rw(bool, TraceClassUnloading, false, \
duke@435	2127	"Trace unloading of classes") \
duke@435	2128	\
duke@435	2129	product_rw(bool, TraceLoaderConstraints, false, \
duke@435	2130	"Trace loader constraints") \
duke@435	2131	\
duke@435	2132	product(bool, TraceGen0Time, false, \
duke@435	2133	"Trace accumulated time for Gen 0 collection") \
duke@435	2134	\
duke@435	2135	product(bool, TraceGen1Time, false, \
duke@435	2136	"Trace accumulated time for Gen 1 collection") \
duke@435	2137	\
duke@435	2138	product(bool, PrintTenuringDistribution, false, \
duke@435	2139	"Print tenuring age information") \
duke@435	2140	\
duke@435	2141	product_rw(bool, PrintHeapAtGC, false, \
duke@435	2142	"Print heap layout before and after each GC") \
duke@435	2143	\
tonyp@1273	2144	product_rw(bool, PrintHeapAtGCExtended, false, \
tonyp@1273	2145	"Prints extended information about the layout of the heap " \
tonyp@1273	2146	"when -XX:+PrintHeapAtGC is set") \
tonyp@1273	2147	\
duke@435	2148	product(bool, PrintHeapAtSIGBREAK, true, \
duke@435	2149	"Print heap layout in response to SIGBREAK") \
duke@435	2150	\
ysr@1050	2151	manageable(bool, PrintClassHistogramBeforeFullGC, false, \
ysr@1050	2152	"Print a class histogram before any major stop-world GC") \
ysr@1050	2153	\
ysr@1050	2154	manageable(bool, PrintClassHistogramAfterFullGC, false, \
ysr@1050	2155	"Print a class histogram after any major stop-world GC") \
ysr@1050	2156	\
duke@435	2157	manageable(bool, PrintClassHistogram, false, \
duke@435	2158	"Print a histogram of class instances") \
duke@435	2159	\
duke@435	2160	develop(bool, TraceWorkGang, false, \
duke@435	2161	"Trace activities of work gangs") \
duke@435	2162	\
duke@435	2163	product(bool, TraceParallelOldGCTasks, false, \
duke@435	2164	"Trace multithreaded GC activity") \
duke@435	2165	\
duke@435	2166	develop(bool, TraceBlockOffsetTable, false, \
duke@435	2167	"Print BlockOffsetTable maps") \
duke@435	2168	\
duke@435	2169	develop(bool, TraceCardTableModRefBS, false, \
duke@435	2170	"Print CardTableModRefBS maps") \
duke@435	2171	\
duke@435	2172	develop(bool, TraceGCTaskManager, false, \
duke@435	2173	"Trace actions of the GC task manager") \
duke@435	2174	\
duke@435	2175	develop(bool, TraceGCTaskQueue, false, \
duke@435	2176	"Trace actions of the GC task queues") \
duke@435	2177	\
duke@435	2178	develop(bool, TraceGCTaskThread, false, \
duke@435	2179	"Trace actions of the GC task threads") \
duke@435	2180	\
duke@435	2181	product(bool, PrintParallelOldGCPhaseTimes, false, \
duke@435	2182	"Print the time taken by each parallel old gc phase." \
duke@435	2183	"PrintGCDetails must also be enabled.") \
duke@435	2184	\
duke@435	2185	develop(bool, TraceParallelOldGCMarkingPhase, false, \
duke@435	2186	"Trace parallel old gc marking phase") \
duke@435	2187	\
duke@435	2188	develop(bool, TraceParallelOldGCSummaryPhase, false, \
duke@435	2189	"Trace parallel old gc summary phase") \
duke@435	2190	\
duke@435	2191	develop(bool, TraceParallelOldGCCompactionPhase, false, \
duke@435	2192	"Trace parallel old gc compaction phase") \
duke@435	2193	\
duke@435	2194	develop(bool, TraceParallelOldGCDensePrefix, false, \
duke@435	2195	"Trace parallel old gc dense prefix computation") \
duke@435	2196	\
duke@435	2197	develop(bool, IgnoreLibthreadGPFault, false, \
duke@435	2198	"Suppress workaround for libthread GP fault") \
duke@435	2199	\
apetrusenko@574	2200	product(bool, PrintJNIGCStalls, false, \
apetrusenko@574	2201	"Print diagnostic message when GC is stalled" \
apetrusenko@574	2202	"by JNI critical section") \
apetrusenko@574	2203	\
duke@435	2204	/* JVMTI heap profiling */ \
duke@435	2205	\
duke@435	2206	diagnostic(bool, TraceJVMTIObjectTagging, false, \
duke@435	2207	"Trace JVMTI object tagging calls") \
duke@435	2208	\
duke@435	2209	diagnostic(bool, VerifyBeforeIteration, false, \
duke@435	2210	"Verify memory system before JVMTI iteration") \
duke@435	2211	\
duke@435	2212	/* compiler interface */ \
duke@435	2213	\
duke@435	2214	develop(bool, CIPrintCompilerName, false, \
duke@435	2215	"when CIPrint is active, print the name of the active compiler") \
duke@435	2216	\
duke@435	2217	develop(bool, CIPrintCompileQueue, false, \
duke@435	2218	"display the contents of the compile queue whenever a " \
duke@435	2219	"compilation is enqueued") \
duke@435	2220	\
duke@435	2221	develop(bool, CIPrintRequests, false, \
duke@435	2222	"display every request for compilation") \
duke@435	2223	\
duke@435	2224	product(bool, CITime, false, \
duke@435	2225	"collect timing information for compilation") \
duke@435	2226	\
duke@435	2227	develop(bool, CITimeEach, false, \
duke@435	2228	"display timing information after each successful compilation") \
duke@435	2229	\
duke@435	2230	develop(bool, CICountOSR, true, \
duke@435	2231	"use a separate counter when assigning ids to osr compilations") \
duke@435	2232	\
duke@435	2233	develop(bool, CICompileNatives, true, \
duke@435	2234	"compile native methods if supported by the compiler") \
duke@435	2235	\
duke@435	2236	develop_pd(bool, CICompileOSR, \
duke@435	2237	"compile on stack replacement methods if supported by the " \
duke@435	2238	"compiler") \
duke@435	2239	\
duke@435	2240	develop(bool, CIPrintMethodCodes, false, \
duke@435	2241	"print method bytecodes of the compiled code") \
duke@435	2242	\
duke@435	2243	develop(bool, CIPrintTypeFlow, false, \
duke@435	2244	"print the results of ciTypeFlow analysis") \
duke@435	2245	\
duke@435	2246	develop(bool, CITraceTypeFlow, false, \
duke@435	2247	"detailed per-bytecode tracing of ciTypeFlow analysis") \
duke@435	2248	\
duke@435	2249	develop(intx, CICloneLoopTestLimit, 100, \
duke@435	2250	"size limit for blocks heuristically cloned in ciTypeFlow") \
duke@435	2251	\
duke@435	2252	/* temp diagnostics */ \
duke@435	2253	\
duke@435	2254	diagnostic(bool, TraceRedundantCompiles, false, \
duke@435	2255	"Have compile broker print when a request already in the queue is"\
duke@435	2256	" requested again") \
duke@435	2257	\
duke@435	2258	diagnostic(bool, InitialCompileFast, false, \
duke@435	2259	"Initial compile at CompLevel_fast_compile") \
duke@435	2260	\
duke@435	2261	diagnostic(bool, InitialCompileReallyFast, false, \
duke@435	2262	"Initial compile at CompLevel_really_fast_compile (no profile)") \
duke@435	2263	\
duke@435	2264	diagnostic(bool, FullProfileOnReInterpret, true, \
duke@435	2265	"On re-interpret unc-trap compile next at CompLevel_fast_compile")\
duke@435	2266	\
duke@435	2267	/* compiler */ \
duke@435	2268	\
duke@435	2269	product(intx, CICompilerCount, CI_COMPILER_COUNT, \
duke@435	2270	"Number of compiler threads to run") \
duke@435	2271	\
duke@435	2272	product(intx, CompilationPolicyChoice, 0, \
duke@435	2273	"which compilation policy (0/1)") \
duke@435	2274	\
duke@435	2275	develop(bool, UseStackBanging, true, \
duke@435	2276	"use stack banging for stack overflow checks (required for " \
duke@435	2277	"proper StackOverflow handling; disable only to measure cost " \
duke@435	2278	"of stackbanging)") \
duke@435	2279	\
duke@435	2280	develop(bool, Use24BitFPMode, true, \
duke@435	2281	"Set 24-bit FPU mode on a per-compile basis ") \
duke@435	2282	\
duke@435	2283	develop(bool, Use24BitFP, true, \
duke@435	2284	"use FP instructions that produce 24-bit precise results") \
duke@435	2285	\
duke@435	2286	develop(bool, UseStrictFP, true, \
duke@435	2287	"use strict fp if modifier strictfp is set") \
duke@435	2288	\
duke@435	2289	develop(bool, GenerateSynchronizationCode, true, \
duke@435	2290	"generate locking/unlocking code for synchronized methods and " \
duke@435	2291	"monitors") \
duke@435	2292	\
duke@435	2293	develop(bool, GenerateCompilerNullChecks, true, \
duke@435	2294	"Generate explicit null checks for loads/stores/calls") \
duke@435	2295	\
duke@435	2296	develop(bool, GenerateRangeChecks, true, \
duke@435	2297	"Generate range checks for array accesses") \
duke@435	2298	\
duke@435	2299	develop_pd(bool, ImplicitNullChecks, \
duke@435	2300	"generate code for implicit null checks") \
duke@435	2301	\
duke@435	2302	product(bool, PrintSafepointStatistics, false, \
duke@435	2303	"print statistics about safepoint synchronization") \
duke@435	2304	\
duke@435	2305	product(intx, PrintSafepointStatisticsCount, 300, \
duke@435	2306	"total number of safepoint statistics collected " \
duke@435	2307	"before printing them out") \
duke@435	2308	\
duke@435	2309	product(intx, PrintSafepointStatisticsTimeout, -1, \
duke@435	2310	"print safepoint statistics only when safepoint takes" \
duke@435	2311	" more than PrintSafepointSatisticsTimeout in millis") \
duke@435	2312	\
xlu@1756	2313	product(bool, TraceSafepointCleanupTime, false, \
xlu@1756	2314	"print the break down of clean up tasks performed during" \
xlu@1756	2315	" safepoint") \
xlu@1756	2316	\
duke@435	2317	develop(bool, InlineAccessors, true, \
duke@435	2318	"inline accessor methods (get/set)") \
duke@435	2319	\
duke@435	2320	product(bool, Inline, true, \
duke@435	2321	"enable inlining") \
duke@435	2322	\
duke@435	2323	product(bool, ClipInlining, true, \
duke@435	2324	"clip inlining if aggregate method exceeds DesiredMethodLimit") \
duke@435	2325	\
duke@435	2326	develop(bool, UseCHA, true, \
duke@435	2327	"enable CHA") \
duke@435	2328	\
duke@435	2329	product(bool, UseTypeProfile, true, \
duke@435	2330	"Check interpreter profile for historically monomorphic calls") \
duke@435	2331	\
duke@435	2332	product(intx, TypeProfileMajorReceiverPercent, 90, \
duke@435	2333	"% of major receiver type to all profiled receivers") \
duke@435	2334	\
duke@435	2335	notproduct(bool, TimeCompiler, false, \
duke@435	2336	"time the compiler") \
duke@435	2337	\
duke@435	2338	notproduct(bool, TimeCompiler2, false, \
duke@435	2339	"detailed time the compiler (requires +TimeCompiler)") \
duke@435	2340	\
duke@435	2341	diagnostic(bool, PrintInlining, false, \
duke@435	2342	"prints inlining optimizations") \
duke@435	2343	\
duke@435	2344	diagnostic(bool, PrintIntrinsics, false, \
duke@435	2345	"prints attempted and successful inlining of intrinsics") \
duke@435	2346	\
twisti@1210	2347	product(bool, UseCountLeadingZerosInstruction, false, \
twisti@1210	2348	"Use count leading zeros instruction") \
twisti@1210	2349	\
twisti@1078	2350	product(bool, UsePopCountInstruction, false, \
twisti@1078	2351	"Use population count instruction") \
twisti@1078	2352	\
duke@435	2353	diagnostic(ccstrlist, DisableIntrinsic, "", \
duke@435	2354	"do not expand intrinsics whose (internal) names appear here") \
duke@435	2355	\
duke@435	2356	develop(bool, StressReflectiveCode, false, \
duke@435	2357	"Use inexact types at allocations, etc., to test reflection") \
duke@435	2358	\
duke@435	2359	develop(bool, EagerInitialization, false, \
duke@435	2360	"Eagerly initialize classes if possible") \
duke@435	2361	\
duke@435	2362	develop(bool, TraceMethodReplacement, false, \
duke@435	2363	"Print when methods are replaced do to recompilation") \
duke@435	2364	\
duke@435	2365	develop(bool, PrintMethodFlushing, false, \
duke@435	2366	"print the nmethods being flushed") \
duke@435	2367	\
duke@435	2368	notproduct(bool, LogMultipleMutexLocking, false, \
duke@435	2369	"log locking and unlocking of mutexes (only if multiple locks " \
duke@435	2370	"are held)") \
duke@435	2371	\
duke@435	2372	develop(bool, UseRelocIndex, false, \
duke@435	2373	"use an index to speed random access to relocations") \
duke@435	2374	\
duke@435	2375	develop(bool, StressCodeBuffers, false, \
duke@435	2376	"Exercise code buffer expansion and other rare state changes") \
duke@435	2377	\
duke@435	2378	diagnostic(bool, DebugNonSafepoints, trueInDebug, \
duke@435	2379	"Generate extra debugging info for non-safepoints in nmethods") \
duke@435	2380	\
duke@435	2381	diagnostic(bool, DebugInlinedCalls, true, \
duke@435	2382	"If false, restricts profiled locations to the root method only") \
duke@435	2383	\
duke@435	2384	product(bool, PrintVMOptions, trueInDebug, \
kvn@1585	2385	"Print flags that appeared on the command line") \
duke@435	2386	\
kvn@999	2387	product(bool, IgnoreUnrecognizedVMOptions, false, \
kvn@999	2388	"Ignore unrecognized VM options") \
kvn@999	2389	\
kvn@1585	2390	product(bool, PrintCommandLineFlags, false, \
kvn@1585	2391	"Print flags specified on command line or set by ergonomics") \
kvn@1585	2392	\
kvn@1585	2393	product(bool, PrintFlagsInitial, false, \
kvn@1585	2394	"Print all VM flags before argument processing and exit VM") \
kvn@1585	2395	\
kvn@1585	2396	product(bool, PrintFlagsFinal, false, \
kvn@1585	2397	"Print all VM flags after argument and ergonomic processing") \
kvn@1585	2398	\
duke@435	2399	diagnostic(bool, SerializeVMOutput, true, \
duke@435	2400	"Use a mutex to serialize output to tty and hotspot.log") \
duke@435	2401	\
duke@435	2402	diagnostic(bool, DisplayVMOutput, true, \
duke@435	2403	"Display all VM output on the tty, independently of LogVMOutput") \
duke@435	2404	\
duke@435	2405	diagnostic(bool, LogVMOutput, trueInDebug, \
duke@435	2406	"Save VM output to hotspot.log, or to LogFile") \
duke@435	2407	\
duke@435	2408	diagnostic(ccstr, LogFile, NULL, \
duke@435	2409	"If LogVMOutput is on, save VM output to this file [hotspot.log]") \
duke@435	2410	\
duke@435	2411	product(ccstr, ErrorFile, NULL, \
duke@435	2412	"If an error occurs, save the error data to this file " \
duke@435	2413	"[default: ./hs_err_pid%p.log] (%p replaced with pid)") \
duke@435	2414	\
duke@435	2415	product(bool, DisplayVMOutputToStderr, false, \
duke@435	2416	"If DisplayVMOutput is true, display all VM output to stderr") \
duke@435	2417	\
duke@435	2418	product(bool, DisplayVMOutputToStdout, false, \
duke@435	2419	"If DisplayVMOutput is true, display all VM output to stdout") \
duke@435	2420	\
duke@435	2421	product(bool, UseHeavyMonitors, false, \
duke@435	2422	"use heavyweight instead of lightweight Java monitors") \
duke@435	2423	\
duke@435	2424	notproduct(bool, PrintSymbolTableSizeHistogram, false, \
duke@435	2425	"print histogram of the symbol table") \
duke@435	2426	\
duke@435	2427	notproduct(bool, ExitVMOnVerifyError, false, \
duke@435	2428	"standard exit from VM if bytecode verify error " \
duke@435	2429	"(only in debug mode)") \
duke@435	2430	\
duke@435	2431	notproduct(ccstr, AbortVMOnException, NULL, \
duke@435	2432	"Call fatal if this exception is thrown. Example: " \
duke@435	2433	"java -XX:AbortVMOnException=java.lang.NullPointerException Foo") \
duke@435	2434	\
kvn@2039	2435	notproduct(ccstr, AbortVMOnExceptionMessage, NULL, \
kvn@2039	2436	"Call fatal if the exception pointed by AbortVMOnException " \
kvn@2039	2437	"has this message.") \
kvn@2039	2438	\
duke@435	2439	develop(bool, DebugVtables, false, \
duke@435	2440	"add debugging code to vtable dispatch") \
duke@435	2441	\
duke@435	2442	develop(bool, PrintVtables, false, \
duke@435	2443	"print vtables when printing klass") \
duke@435	2444	\
duke@435	2445	notproduct(bool, PrintVtableStats, false, \
duke@435	2446	"print vtables stats at end of run") \
duke@435	2447	\
duke@435	2448	develop(bool, TraceCreateZombies, false, \
duke@435	2449	"trace creation of zombie nmethods") \
duke@435	2450	\
duke@435	2451	notproduct(bool, IgnoreLockingAssertions, false, \
duke@435	2452	"disable locking assertions (for speed)") \
duke@435	2453	\
duke@435	2454	notproduct(bool, VerifyLoopOptimizations, false, \
duke@435	2455	"verify major loop optimizations") \
duke@435	2456	\
duke@435	2457	product(bool, RangeCheckElimination, true, \
duke@435	2458	"Split loop iterations to eliminate range checks") \
duke@435	2459	\
duke@435	2460	develop_pd(bool, UncommonNullCast, \
duke@435	2461	"track occurrences of null in casts; adjust compiler tactics") \
duke@435	2462	\
duke@435	2463	develop(bool, TypeProfileCasts, true, \
duke@435	2464	"treat casts like calls for purposes of type profiling") \
duke@435	2465	\
duke@435	2466	develop(bool, MonomorphicArrayCheck, true, \
duke@435	2467	"Uncommon-trap array store checks that require full type check") \
duke@435	2468	\
jrose@2101	2469	diagnostic(bool, ProfileDynamicTypes, true, \
jrose@2101	2470	"do extra type profiling and use it more aggressively") \
jrose@2101	2471	\
duke@435	2472	develop(bool, DelayCompilationDuringStartup, true, \
duke@435	2473	"Delay invoking the compiler until main application class is " \
duke@435	2474	"loaded") \
duke@435	2475	\
duke@435	2476	develop(bool, CompileTheWorld, false, \
duke@435	2477	"Compile all methods in all classes in bootstrap class path " \
duke@435	2478	"(stress test)") \
duke@435	2479	\
duke@435	2480	develop(bool, CompileTheWorldPreloadClasses, true, \
duke@435	2481	"Preload all classes used by a class before start loading") \
duke@435	2482	\
duke@435	2483	notproduct(bool, CompileTheWorldIgnoreInitErrors, false, \
duke@435	2484	"Compile all methods although class initializer failed") \
duke@435	2485	\
kvn@1623	2486	notproduct(intx, CompileTheWorldSafepointInterval, 100, \
kvn@1623	2487	"Force a safepoint every n compiles so sweeper can keep up") \
kvn@1623	2488	\
duke@435	2489	develop(bool, TraceIterativeGVN, false, \
duke@435	2490	"Print progress during Iterative Global Value Numbering") \
duke@435	2491	\
duke@435	2492	develop(bool, FillDelaySlots, true, \
duke@435	2493	"Fill delay slots (on SPARC only)") \
duke@435	2494	\
duke@435	2495	develop(bool, VerifyIterativeGVN, false, \
duke@435	2496	"Verify Def-Use modifications during sparse Iterative Global " \
duke@435	2497	"Value Numbering") \
duke@435	2498	\
duke@435	2499	notproduct(bool, TracePhaseCCP, false, \
duke@435	2500	"Print progress during Conditional Constant Propagation") \
duke@435	2501	\
duke@435	2502	develop(bool, TimeLivenessAnalysis, false, \
duke@435	2503	"Time computation of bytecode liveness analysis") \
duke@435	2504	\
duke@435	2505	develop(bool, TraceLivenessGen, false, \
duke@435	2506	"Trace the generation of liveness analysis information") \
duke@435	2507	\
duke@435	2508	notproduct(bool, TraceLivenessQuery, false, \
duke@435	2509	"Trace queries of liveness analysis information") \
duke@435	2510	\
duke@435	2511	notproduct(bool, CollectIndexSetStatistics, false, \
duke@435	2512	"Collect information about IndexSets") \
duke@435	2513	\
duke@435	2514	develop(bool, PrintDominators, false, \
duke@435	2515	"Print out dominator trees for GVN") \
duke@435	2516	\
duke@435	2517	develop(bool, UseLoopSafepoints, true, \
duke@435	2518	"Generate Safepoint nodes in every loop") \
duke@435	2519	\
duke@435	2520	notproduct(bool, TraceCISCSpill, false, \
duke@435	2521	"Trace allocators use of cisc spillable instructions") \
duke@435	2522	\
duke@435	2523	notproduct(bool, TraceSpilling, false, \
duke@435	2524	"Trace spilling") \
duke@435	2525	\
duke@435	2526	product(bool, SplitIfBlocks, true, \
duke@435	2527	"Clone compares and control flow through merge points to fold " \
duke@435	2528	"some branches") \
duke@435	2529	\
duke@435	2530	develop(intx, FastAllocateSizeLimit, 128*K, \
duke@435	2531	/* Note: This value is zero mod 1<<13 for a cheap sparc set. */ \
duke@435	2532	"Inline allocations larger than this in doublewords must go slow")\
duke@435	2533	\
duke@435	2534	product(bool, AggressiveOpts, false, \
duke@435	2535	"Enable aggressive optimizations - see arguments.cpp") \
duke@435	2536	\
kvn@627	2537	product(bool, UseStringCache, false, \
kvn@627	2538	"Enable String cache capabilities on String.java") \
kvn@627	2539	\
duke@435	2540	/* statistics */ \
duke@435	2541	develop(bool, CountCompiledCalls, false, \
duke@435	2542	"counts method invocations") \
duke@435	2543	\
duke@435	2544	notproduct(bool, CountRuntimeCalls, false, \
duke@435	2545	"counts VM runtime calls") \
duke@435	2546	\
duke@435	2547	develop(bool, CountJNICalls, false, \
duke@435	2548	"counts jni method invocations") \
duke@435	2549	\
duke@435	2550	notproduct(bool, CountJVMCalls, false, \
duke@435	2551	"counts jvm method invocations") \
duke@435	2552	\
duke@435	2553	notproduct(bool, CountRemovableExceptions, false, \
duke@435	2554	"count exceptions that could be replaced by branches due to " \
duke@435	2555	"inlining") \
duke@435	2556	\
duke@435	2557	notproduct(bool, ICMissHistogram, false, \
duke@435	2558	"produce histogram of IC misses") \
duke@435	2559	\
duke@435	2560	notproduct(bool, PrintClassStatistics, false, \
duke@435	2561	"prints class statistics at end of run") \
duke@435	2562	\
duke@435	2563	notproduct(bool, PrintMethodStatistics, false, \
duke@435	2564	"prints method statistics at end of run") \
duke@435	2565	\
duke@435	2566	/* interpreter */ \
duke@435	2567	develop(bool, ClearInterpreterLocals, false, \
duke@435	2568	"Always clear local variables of interpreter activations upon " \
duke@435	2569	"entry") \
duke@435	2570	\
duke@435	2571	product_pd(bool, RewriteBytecodes, \
duke@435	2572	"Allow rewriting of bytecodes (bytecodes are not immutable)") \
duke@435	2573	\
duke@435	2574	product_pd(bool, RewriteFrequentPairs, \
duke@435	2575	"Rewrite frequently used bytecode pairs into a single bytecode") \
duke@435	2576	\
jrose@535	2577	diagnostic(bool, PrintInterpreter, false, \
duke@435	2578	"Prints the generated interpreter code") \
duke@435	2579	\
duke@435	2580	product(bool, UseInterpreter, true, \
duke@435	2581	"Use interpreter for non-compiled methods") \
duke@435	2582	\
duke@435	2583	develop(bool, UseFastSignatureHandlers, true, \
duke@435	2584	"Use fast signature handlers for native calls") \
duke@435	2585	\
duke@435	2586	develop(bool, UseV8InstrsOnly, false, \
duke@435	2587	"Use SPARC-V8 Compliant instruction subset") \
duke@435	2588	\
duke@435	2589	product(bool, UseNiagaraInstrs, false, \
duke@435	2590	"Use Niagara-efficient instruction subset") \
duke@435	2591	\
duke@435	2592	develop(bool, UseCASForSwap, false, \
duke@435	2593	"Do not use swap instructions, but only CAS (in a loop) on SPARC")\
duke@435	2594	\
duke@435	2595	product(bool, UseLoopCounter, true, \
duke@435	2596	"Increment invocation counter on backward branch") \
duke@435	2597	\
duke@435	2598	product(bool, UseFastEmptyMethods, true, \
duke@435	2599	"Use fast method entry code for empty methods") \
duke@435	2600	\
duke@435	2601	product(bool, UseFastAccessorMethods, true, \
duke@435	2602	"Use fast method entry code for accessor methods") \
duke@435	2603	\
duke@435	2604	product_pd(bool, UseOnStackReplacement, \
duke@435	2605	"Use on stack replacement, calls runtime if invoc. counter " \
duke@435	2606	"overflows in loop") \
duke@435	2607	\
duke@435	2608	notproduct(bool, TraceOnStackReplacement, false, \
duke@435	2609	"Trace on stack replacement") \
duke@435	2610	\
duke@435	2611	develop(bool, PoisonOSREntry, true, \
duke@435	2612	"Detect abnormal calls to OSR code") \
duke@435	2613	\
duke@435	2614	product_pd(bool, PreferInterpreterNativeStubs, \
duke@435	2615	"Use always interpreter stubs for native methods invoked via " \
duke@435	2616	"interpreter") \
duke@435	2617	\
duke@435	2618	develop(bool, CountBytecodes, false, \
duke@435	2619	"Count number of bytecodes executed") \
duke@435	2620	\
duke@435	2621	develop(bool, PrintBytecodeHistogram, false, \
duke@435	2622	"Print histogram of the executed bytecodes") \
duke@435	2623	\
duke@435	2624	develop(bool, PrintBytecodePairHistogram, false, \
duke@435	2625	"Print histogram of the executed bytecode pairs") \
duke@435	2626	\
jrose@535	2627	diagnostic(bool, PrintSignatureHandlers, false, \
duke@435	2628	"Print code generated for native method signature handlers") \
duke@435	2629	\
duke@435	2630	develop(bool, VerifyOops, false, \
duke@435	2631	"Do plausibility checks for oops") \
duke@435	2632	\
duke@435	2633	develop(bool, CheckUnhandledOops, false, \
duke@435	2634	"Check for unhandled oops in VM code") \
duke@435	2635	\
duke@435	2636	develop(bool, VerifyJNIFields, trueInDebug, \
duke@435	2637	"Verify jfieldIDs for instance fields") \
duke@435	2638	\
duke@435	2639	notproduct(bool, VerifyJNIEnvThread, false, \
duke@435	2640	"Verify JNIEnv.thread == Thread::current() when entering VM " \
duke@435	2641	"from JNI") \
duke@435	2642	\
duke@435	2643	develop(bool, VerifyFPU, false, \
duke@435	2644	"Verify FPU state (check for NaN's, etc.)") \
duke@435	2645	\
duke@435	2646	develop(bool, VerifyThread, false, \
duke@435	2647	"Watch the thread register for corruption (SPARC only)") \
duke@435	2648	\
duke@435	2649	develop(bool, VerifyActivationFrameSize, false, \
duke@435	2650	"Verify that activation frame didn't become smaller than its " \
duke@435	2651	"minimal size") \
duke@435	2652	\
duke@435	2653	develop(bool, TraceFrequencyInlining, false, \
duke@435	2654	"Trace frequency based inlining") \
duke@435	2655	\
duke@435	2656	notproduct(bool, TraceTypeProfile, false, \
duke@435	2657	"Trace type profile") \
duke@435	2658	\
duke@435	2659	develop_pd(bool, InlineIntrinsics, \
duke@435	2660	"Inline intrinsics that can be statically resolved") \
duke@435	2661	\
duke@435	2662	product_pd(bool, ProfileInterpreter, \
duke@435	2663	"Profile at the bytecode level during interpretation") \
duke@435	2664	\
duke@435	2665	develop_pd(bool, ProfileTraps, \
duke@435	2666	"Profile deoptimization traps at the bytecode level") \
duke@435	2667	\
duke@435	2668	product(intx, ProfileMaturityPercentage, 20, \
duke@435	2669	"number of method invocations/branches (expressed as % of " \
duke@435	2670	"CompileThreshold) before using the method's profile") \
duke@435	2671	\
duke@435	2672	develop(bool, PrintMethodData, false, \
duke@435	2673	"Print the results of +ProfileInterpreter at end of run") \
duke@435	2674	\
duke@435	2675	develop(bool, VerifyDataPointer, trueInDebug, \
duke@435	2676	"Verify the method data pointer during interpreter profiling") \
duke@435	2677	\
duke@435	2678	develop(bool, VerifyCompiledCode, false, \
duke@435	2679	"Include miscellaneous runtime verifications in nmethod code; " \
phh@1499	2680	"default off because it disturbs nmethod size heuristics") \
duke@435	2681	\
minqi@1554	2682	notproduct(bool, CrashGCForDumpingJavaThread, false, \
minqi@1554	2683	"Manually make GC thread crash then dump java stack trace; " \
minqi@1554	2684	"Test only") \
duke@435	2685	\
duke@435	2686	/* compilation */ \
duke@435	2687	product(bool, UseCompiler, true, \
duke@435	2688	"use compilation") \
duke@435	2689	\
duke@435	2690	develop(bool, TraceCompilationPolicy, false, \
duke@435	2691	"Trace compilation policy") \
duke@435	2692	\
duke@435	2693	develop(bool, TimeCompilationPolicy, false, \
duke@435	2694	"Time the compilation policy") \
duke@435	2695	\
duke@435	2696	product(bool, UseCounterDecay, true, \
duke@435	2697	"adjust recompilation counters") \
duke@435	2698	\
duke@435	2699	develop(intx, CounterHalfLifeTime, 30, \
duke@435	2700	"half-life time of invocation counters (in secs)") \
duke@435	2701	\
duke@435	2702	develop(intx, CounterDecayMinIntervalLength, 500, \
duke@435	2703	"Min. ms. between invocation of CounterDecay") \
duke@435	2704	\
duke@435	2705	product(bool, AlwaysCompileLoopMethods, false, \
duke@435	2706	"when using recompilation, never interpret methods " \
duke@435	2707	"containing loops") \
duke@435	2708	\
duke@435	2709	product(bool, DontCompileHugeMethods, true, \
duke@435	2710	"don't compile methods > HugeMethodLimit") \
duke@435	2711	\
duke@435	2712	/* Bytecode escape analysis estimation. */ \
duke@435	2713	product(bool, EstimateArgEscape, true, \
duke@435	2714	"Analyze bytecodes to estimate escape state of arguments") \
duke@435	2715	\
duke@435	2716	product(intx, BCEATraceLevel, 0, \
duke@435	2717	"How much tracing to do of bytecode escape analysis estimates") \
duke@435	2718	\
duke@435	2719	product(intx, MaxBCEAEstimateLevel, 5, \
duke@435	2720	"Maximum number of nested calls that are analyzed by BC EA.") \
duke@435	2721	\
duke@435	2722	product(intx, MaxBCEAEstimateSize, 150, \
duke@435	2723	"Maximum bytecode size of a method to be analyzed by BC EA.") \
duke@435	2724	\
duke@435	2725	product(intx, AllocatePrefetchStyle, 1, \
duke@435	2726	"0 = no prefetch, " \
duke@435	2727	"1 = prefetch instructions for each allocation, " \
kvn@1802	2728	"2 = use TLAB watermark to gate allocation prefetch, " \
kvn@1802	2729	"3 = use BIS instruction on Sparc for allocation prefetch") \
duke@435	2730	\
duke@435	2731	product(intx, AllocatePrefetchDistance, -1, \
duke@435	2732	"Distance to prefetch ahead of allocation pointer") \
duke@435	2733	\
duke@435	2734	product(intx, AllocatePrefetchLines, 1, \
duke@435	2735	"Number of lines to prefetch ahead of allocation pointer") \
duke@435	2736	\
duke@435	2737	product(intx, AllocatePrefetchStepSize, 16, \
duke@435	2738	"Step size in bytes of sequential prefetch instructions") \
duke@435	2739	\
duke@435	2740	product(intx, AllocatePrefetchInstr, 0, \
duke@435	2741	"Prefetch instruction to prefetch ahead of allocation pointer") \
duke@435	2742	\
duke@435	2743	product(intx, ReadPrefetchInstr, 0, \
duke@435	2744	"Prefetch instruction to prefetch ahead") \
duke@435	2745	\
duke@435	2746	/* deoptimization */ \
duke@435	2747	develop(bool, TraceDeoptimization, false, \
duke@435	2748	"Trace deoptimization") \
duke@435	2749	\
duke@435	2750	develop(bool, DebugDeoptimization, false, \
duke@435	2751	"Tracing various information while debugging deoptimization") \
duke@435	2752	\
duke@435	2753	product(intx, SelfDestructTimer, 0, \
duke@435	2754	"Will cause VM to terminate after a given time (in minutes) " \
duke@435	2755	"(0 means off)") \
duke@435	2756	\
duke@435	2757	product(intx, MaxJavaStackTraceDepth, 1024, \
duke@435	2758	"Max. no. of lines in the stack trace for Java exceptions " \
duke@435	2759	"(0 means all)") \
duke@435	2760	\
duke@435	2761	develop(intx, GuaranteedSafepointInterval, 1000, \
duke@435	2762	"Guarantee a safepoint (at least) every so many milliseconds " \
duke@435	2763	"(0 means none)") \
duke@435	2764	\
duke@435	2765	product(intx, SafepointTimeoutDelay, 10000, \
duke@435	2766	"Delay in milliseconds for option SafepointTimeout") \
duke@435	2767	\
duke@435	2768	product(intx, NmethodSweepFraction, 4, \
duke@435	2769	"Number of invocations of sweeper to cover all nmethods") \
duke@435	2770	\
never@1893	2771	product(intx, NmethodSweepCheckInterval, 5, \
never@1893	2772	"Compilers wake up every n seconds to possibly sweep nmethods") \
never@1893	2773	\
duke@435	2774	notproduct(intx, MemProfilingInterval, 500, \
duke@435	2775	"Time between each invocation of the MemProfiler") \
duke@435	2776	\
duke@435	2777	develop(intx, MallocCatchPtr, -1, \
duke@435	2778	"Hit breakpoint when mallocing/freeing this pointer") \
duke@435	2779	\
duke@435	2780	notproduct(intx, AssertRepeat, 1, \
duke@435	2781	"number of times to evaluate expression in assert " \
duke@435	2782	"(to estimate overhead); only works with -DUSE_REPEATED_ASSERTS") \
duke@435	2783	\
duke@435	2784	notproduct(ccstrlist, SuppressErrorAt, "", \
duke@435	2785	"List of assertions (file:line) to muzzle") \
duke@435	2786	\
duke@435	2787	notproduct(uintx, HandleAllocationLimit, 1024, \
duke@435	2788	"Threshold for HandleMark allocation when +TraceHandleAllocation "\
duke@435	2789	"is used") \
duke@435	2790	\
duke@435	2791	develop(uintx, TotalHandleAllocationLimit, 1024, \
duke@435	2792	"Threshold for total handle allocation when " \
duke@435	2793	"+TraceHandleAllocation is used") \
duke@435	2794	\
duke@435	2795	develop(intx, StackPrintLimit, 100, \
duke@435	2796	"number of stack frames to print in VM-level stack dump") \
duke@435	2797	\
duke@435	2798	notproduct(intx, MaxElementPrintSize, 256, \
duke@435	2799	"maximum number of elements to print") \
duke@435	2800	\
duke@435	2801	notproduct(intx, MaxSubklassPrintSize, 4, \
duke@435	2802	"maximum number of subklasses to print when printing klass") \
duke@435	2803	\
jrose@1592	2804	product(intx, MaxInlineLevel, 9, \
duke@435	2805	"maximum number of nested calls that are inlined") \
duke@435	2806	\
jrose@1592	2807	product(intx, MaxRecursiveInlineLevel, 1, \
duke@435	2808	"maximum number of nested recursive calls that are inlined") \
duke@435	2809	\
kvn@1110	2810	product_pd(intx, InlineSmallCode, \
duke@435	2811	"Only inline already compiled methods if their code size is " \
duke@435	2812	"less than this") \
duke@435	2813	\
duke@435	2814	product(intx, MaxInlineSize, 35, \
duke@435	2815	"maximum bytecode size of a method to be inlined") \
duke@435	2816	\
duke@435	2817	product_pd(intx, FreqInlineSize, \
duke@435	2818	"maximum bytecode size of a frequent method to be inlined") \
duke@435	2819	\
jrose@1592	2820	product(intx, MaxTrivialSize, 6, \
duke@435	2821	"maximum bytecode size of a trivial method to be inlined") \
duke@435	2822	\
jrose@1592	2823	product(intx, MinInliningThreshold, 250, \
duke@435	2824	"min. invocation count a method needs to have to be inlined") \
duke@435	2825	\
duke@435	2826	develop(intx, AlignEntryCode, 4, \
duke@435	2827	"aligns entry code to specified value (in bytes)") \
duke@435	2828	\
duke@435	2829	develop(intx, MethodHistogramCutoff, 100, \
duke@435	2830	"cutoff value for method invoc. histogram (+CountCalls)") \
duke@435	2831	\
duke@435	2832	develop(intx, ProfilerNumberOfInterpretedMethods, 25, \
duke@435	2833	"# of interpreted methods to show in profile") \
duke@435	2834	\
duke@435	2835	develop(intx, ProfilerNumberOfCompiledMethods, 25, \
duke@435	2836	"# of compiled methods to show in profile") \
duke@435	2837	\
duke@435	2838	develop(intx, ProfilerNumberOfStubMethods, 25, \
duke@435	2839	"# of stub methods to show in profile") \
duke@435	2840	\
duke@435	2841	develop(intx, ProfilerNumberOfRuntimeStubNodes, 25, \
duke@435	2842	"# of runtime stub nodes to show in profile") \
duke@435	2843	\
duke@435	2844	product(intx, ProfileIntervalsTicks, 100, \
duke@435	2845	"# of ticks between printing of interval profile " \
duke@435	2846	"(+ProfileIntervals)") \
duke@435	2847	\
duke@435	2848	notproduct(intx, ScavengeALotInterval, 1, \
duke@435	2849	"Interval between which scavenge will occur with +ScavengeALot") \
duke@435	2850	\
duke@435	2851	notproduct(intx, FullGCALotInterval, 1, \
duke@435	2852	"Interval between which full gc will occur with +FullGCALot") \
duke@435	2853	\
duke@435	2854	notproduct(intx, FullGCALotStart, 0, \
duke@435	2855	"For which invocation to start FullGCAlot") \
duke@435	2856	\
duke@435	2857	notproduct(intx, FullGCALotDummies, 32*K, \
duke@435	2858	"Dummy object allocated with +FullGCALot, forcing all objects " \
duke@435	2859	"to move") \
duke@435	2860	\
duke@435	2861	develop(intx, DontYieldALotInterval, 10, \
duke@435	2862	"Interval between which yields will be dropped (milliseconds)") \
duke@435	2863	\
duke@435	2864	develop(intx, MinSleepInterval, 1, \
duke@435	2865	"Minimum sleep() interval (milliseconds) when " \
duke@435	2866	"ConvertSleepToYield is off (used for SOLARIS)") \
duke@435	2867	\
duke@435	2868	product(intx, EventLogLength, 2000, \
duke@435	2869	"maximum nof events in event log") \
duke@435	2870	\
duke@435	2871	develop(intx, ProfilerPCTickThreshold, 15, \
duke@435	2872	"Number of ticks in a PC buckets to be a hotspot") \
duke@435	2873	\
duke@435	2874	notproduct(intx, DeoptimizeALotInterval, 5, \
duke@435	2875	"Number of exits until DeoptimizeALot kicks in") \
duke@435	2876	\
duke@435	2877	notproduct(intx, ZombieALotInterval, 5, \
duke@435	2878	"Number of exits until ZombieALot kicks in") \
duke@435	2879	\
duke@435	2880	develop(bool, StressNonEntrant, false, \
duke@435	2881	"Mark nmethods non-entrant at registration") \
duke@435	2882	\
duke@435	2883	diagnostic(intx, MallocVerifyInterval, 0, \
duke@435	2884	"if non-zero, verify C heap after every N calls to " \
duke@435	2885	"malloc/realloc/free") \
duke@435	2886	\
duke@435	2887	diagnostic(intx, MallocVerifyStart, 0, \
duke@435	2888	"if non-zero, start verifying C heap after Nth call to " \
duke@435	2889	"malloc/realloc/free") \
duke@435	2890	\
iveresov@2138	2891	product(intx, TypeProfileWidth, 2, \
duke@435	2892	"number of receiver types to record in call/cast profile") \
duke@435	2893	\
duke@435	2894	develop(intx, BciProfileWidth, 2, \
duke@435	2895	"number of return bci's to record in ret profile") \
duke@435	2896	\
duke@435	2897	product(intx, PerMethodRecompilationCutoff, 400, \
duke@435	2898	"After recompiling N times, stay in the interpreter (-1=>'Inf')") \
duke@435	2899	\
kvn@1641	2900	product(intx, PerBytecodeRecompilationCutoff, 200, \
duke@435	2901	"Per-BCI limit on repeated recompilation (-1=>'Inf')") \
duke@435	2902	\
duke@435	2903	product(intx, PerMethodTrapLimit, 100, \
duke@435	2904	"Limit on traps (of one kind) in a method (includes inlines)") \
duke@435	2905	\
duke@435	2906	product(intx, PerBytecodeTrapLimit, 4, \
duke@435	2907	"Limit on traps (of one kind) at a particular BCI") \
duke@435	2908	\
duke@435	2909	develop(intx, FreqCountInvocations, 1, \
duke@435	2910	"Scaling factor for branch frequencies (deprecated)") \
duke@435	2911	\
duke@435	2912	develop(intx, InlineFrequencyRatio, 20, \
duke@435	2913	"Ratio of call site execution to caller method invocation") \
duke@435	2914	\
duke@435	2915	develop_pd(intx, InlineFrequencyCount, \
duke@435	2916	"Count of call site execution necessary to trigger frequent " \
duke@435	2917	"inlining") \
duke@435	2918	\
duke@435	2919	develop(intx, InlineThrowCount, 50, \
duke@435	2920	"Force inlining of interpreted methods that throw this often") \
duke@435	2921	\
duke@435	2922	develop(intx, InlineThrowMaxSize, 200, \
duke@435	2923	"Force inlining of throwing methods smaller than this") \
duke@435	2924	\
duke@435	2925	product(intx, AliasLevel, 3, \
duke@435	2926	"0 for no aliasing, 1 for oop/field/static/array split, " \
duke@435	2927	"2 for class split, 3 for unique instances") \
duke@435	2928	\
duke@435	2929	develop(bool, VerifyAliases, false, \
duke@435	2930	"perform extra checks on the results of alias analysis") \
duke@435	2931	\
duke@435	2932	develop(intx, ProfilerNodeSize, 1024, \
duke@435	2933	"Size in K to allocate for the Profile Nodes of each thread") \
duke@435	2934	\
duke@435	2935	develop(intx, V8AtomicOperationUnderLockSpinCount, 50, \
duke@435	2936	"Number of times to spin wait on a v8 atomic operation lock") \
duke@435	2937	\
duke@435	2938	product(intx, ReadSpinIterations, 100, \
duke@435	2939	"Number of read attempts before a yield (spin inner loop)") \
duke@435	2940	\
duke@435	2941	product_pd(intx, PreInflateSpin, \
duke@435	2942	"Number of times to spin wait before inflation") \
duke@435	2943	\
duke@435	2944	product(intx, PreBlockSpin, 10, \
duke@435	2945	"Number of times to spin in an inflated lock before going to " \
duke@435	2946	"an OS lock") \
duke@435	2947	\
duke@435	2948	/* gc parameters */ \
phh@1499	2949	product(uintx, InitialHeapSize, 0, \
phh@1499	2950	"Initial heap size (in bytes); zero means OldSize + NewSize") \
phh@1499	2951	\
phh@1499	2952	product(uintx, MaxHeapSize, ScaleForWordSize(96*M), \
phh@1499	2953	"Maximum heap size (in bytes)") \
phh@1499	2954	\
phh@1499	2955	product(uintx, OldSize, ScaleForWordSize(4*M), \
phh@1499	2956	"Initial tenured generation size (in bytes)") \
phh@1499	2957	\
phh@1722	2958	product(uintx, NewSize, ScaleForWordSize(1*M), \
phh@1499	2959	"Initial new generation size (in bytes)") \
duke@435	2960	\
duke@435	2961	product(uintx, MaxNewSize, max_uintx, \
phh@1499	2962	"Maximum new generation size (in bytes), max_uintx means set " \
phh@1499	2963	"ergonomically") \
duke@435	2964	\
duke@435	2965	product(uintx, PretenureSizeThreshold, 0, \
phh@1499	2966	"Maximum size in bytes of objects allocated in DefNew " \
phh@1499	2967	"generation; zero means no maximum") \
phh@1499	2968	\
phh@1499	2969	product(uintx, TLABSize, 0, \
phh@1499	2970	"Starting TLAB size (in bytes); zero means set ergonomically") \
duke@435	2971	\
duke@435	2972	product(uintx, MinTLABSize, 2*K, \
duke@435	2973	"Minimum allowed TLAB size (in bytes)") \
duke@435	2974	\
duke@435	2975	product(uintx, TLABAllocationWeight, 35, \
duke@435	2976	"Allocation averaging weight") \
duke@435	2977	\
duke@435	2978	product(uintx, TLABWasteTargetPercent, 1, \
duke@435	2979	"Percentage of Eden that can be wasted") \
duke@435	2980	\
duke@435	2981	product(uintx, TLABRefillWasteFraction, 64, \
duke@435	2982	"Max TLAB waste at a refill (internal fragmentation)") \
duke@435	2983	\
duke@435	2984	product(uintx, TLABWasteIncrement, 4, \
duke@435	2985	"Increment allowed waste at slow allocation") \
duke@435	2986	\
phh@1499	2987	product(intx, SurvivorRatio, 8, \
duke@435	2988	"Ratio of eden/survivor space size") \
duke@435	2989	\
phh@1499	2990	product(intx, NewRatio, 2, \
duke@435	2991	"Ratio of new/old generation sizes") \
duke@435	2992	\
duke@435	2993	product(uintx, MaxLiveObjectEvacuationRatio, 100, \
duke@435	2994	"Max percent of eden objects that will be live at scavenge") \
duke@435	2995	\
duke@435	2996	product_pd(uintx, NewSizeThreadIncrease, \
duke@435	2997	"Additional size added to desired new generation size per " \
duke@435	2998	"non-daemon thread (in bytes)") \
duke@435	2999	\
duke@435	3000	product_pd(uintx, PermSize, \
phh@1499	3001	"Initial size of permanent generation (in bytes)") \
duke@435	3002	\
duke@435	3003	product_pd(uintx, MaxPermSize, \
duke@435	3004	"Maximum size of permanent generation (in bytes)") \
duke@435	3005	\
duke@435	3006	product(uintx, MinHeapFreeRatio, 40, \
duke@435	3007	"Min percentage of heap free after GC to avoid expansion") \
duke@435	3008	\
duke@435	3009	product(uintx, MaxHeapFreeRatio, 70, \
duke@435	3010	"Max percentage of heap free after GC to avoid shrinking") \
duke@435	3011	\
duke@435	3012	product(intx, SoftRefLRUPolicyMSPerMB, 1000, \
duke@435	3013	"Number of milliseconds per MB of free space in the heap") \
duke@435	3014	\
duke@435	3015	product(uintx, MinHeapDeltaBytes, ScaleForWordSize(128*K), \
duke@435	3016	"Min change in heap space due to GC (in bytes)") \
duke@435	3017	\
duke@435	3018	product(uintx, MinPermHeapExpansion, ScaleForWordSize(256*K), \
duke@435	3019	"Min expansion of permanent heap (in bytes)") \
duke@435	3020	\
duke@435	3021	product(uintx, MaxPermHeapExpansion, ScaleForWordSize(4*M), \
duke@435	3022	"Max expansion of permanent heap without full GC (in bytes)") \
duke@435	3023	\
duke@435	3024	product(intx, QueuedAllocationWarningCount, 0, \
duke@435	3025	"Number of times an allocation that queues behind a GC " \
duke@435	3026	"will retry before printing a warning") \
duke@435	3027	\
duke@435	3028	diagnostic(uintx, VerifyGCStartAt, 0, \
duke@435	3029	"GC invoke count where +VerifyBefore/AfterGC kicks in") \
duke@435	3030	\
duke@435	3031	diagnostic(intx, VerifyGCLevel, 0, \
duke@435	3032	"Generation level at which to start +VerifyBefore/AfterGC") \
duke@435	3033	\
duke@435	3034	develop(uintx, ExitAfterGCNum, 0, \
duke@435	3035	"If non-zero, exit after this GC.") \
duke@435	3036	\
duke@435	3037	product(intx, MaxTenuringThreshold, 15, \
duke@435	3038	"Maximum value for tenuring threshold") \
duke@435	3039	\
duke@435	3040	product(intx, InitialTenuringThreshold, 7, \
duke@435	3041	"Initial value for tenuring threshold") \
duke@435	3042	\
duke@435	3043	product(intx, TargetSurvivorRatio, 50, \
duke@435	3044	"Desired percentage of survivor space used after scavenge") \
duke@435	3045	\
jcoomes@873	3046	product(uintx, MarkSweepDeadRatio, 5, \
duke@435	3047	"Percentage (0-100) of the old gen allowed as dead wood." \
duke@435	3048	"Serial mark sweep treats this as both the min and max value." \
duke@435	3049	"CMS uses this value only if it falls back to mark sweep." \
duke@435	3050	"Par compact uses a variable scale based on the density of the" \
duke@435	3051	"generation and treats this as the max value when the heap is" \
duke@435	3052	"either completely full or completely empty. Par compact also" \
duke@435	3053	"has a smaller default value; see arguments.cpp.") \
duke@435	3054	\
jcoomes@873	3055	product(uintx, PermMarkSweepDeadRatio, 20, \
duke@435	3056	"Percentage (0-100) of the perm gen allowed as dead wood." \
duke@435	3057	"See MarkSweepDeadRatio for collector-specific comments.") \
duke@435	3058	\
duke@435	3059	product(intx, MarkSweepAlwaysCompactCount, 4, \
duke@435	3060	"How often should we fully compact the heap (ignoring the dead " \
duke@435	3061	"space parameters)") \
duke@435	3062	\
duke@435	3063	product(intx, PrintCMSStatistics, 0, \
duke@435	3064	"Statistics for CMS") \
duke@435	3065	\
duke@435	3066	product(bool, PrintCMSInitiationStatistics, false, \
duke@435	3067	"Statistics for initiating a CMS collection") \
duke@435	3068	\
duke@435	3069	product(intx, PrintFLSStatistics, 0, \
duke@435	3070	"Statistics for CMS' FreeListSpace") \
duke@435	3071	\
duke@435	3072	product(intx, PrintFLSCensus, 0, \
duke@435	3073	"Census for CMS' FreeListSpace") \
duke@435	3074	\
duke@435	3075	develop(uintx, GCExpandToAllocateDelayMillis, 0, \
duke@435	3076	"Delay in ms between expansion and allocation") \
duke@435	3077	\
duke@435	3078	product(intx, DeferThrSuspendLoopCount, 4000, \
duke@435	3079	"(Unstable) Number of times to iterate in safepoint loop " \
duke@435	3080	" before blocking VM threads ") \
duke@435	3081	\
duke@435	3082	product(intx, DeferPollingPageLoopCount, -1, \
duke@435	3083	"(Unsafe,Unstable) Number of iterations in safepoint loop " \
duke@435	3084	"before changing safepoint polling page to RO ") \
duke@435	3085	\
duke@435	3086	product(intx, SafepointSpinBeforeYield, 2000, "(Unstable)") \
duke@435	3087	\
duke@435	3088	product(bool, PSChunkLargeArrays, true, \
duke@435	3089	"true: process large arrays in chunks") \
duke@435	3090	\
duke@435	3091	product(uintx, GCDrainStackTargetSize, 64, \
duke@435	3092	"how many entries we'll try to leave on the stack during " \
duke@435	3093	"parallel GC") \
duke@435	3094	\
duke@435	3095	/* stack parameters */ \
duke@435	3096	product_pd(intx, StackYellowPages, \
duke@435	3097	"Number of yellow zone (recoverable overflows) pages") \
duke@435	3098	\
duke@435	3099	product_pd(intx, StackRedPages, \
duke@435	3100	"Number of red zone (unrecoverable overflows) pages") \
duke@435	3101	\
duke@435	3102	product_pd(intx, StackShadowPages, \
duke@435	3103	"Number of shadow zone (for overflow checking) pages" \
duke@435	3104	" this should exceed the depth of the VM and native call stack") \
duke@435	3105	\
duke@435	3106	product_pd(intx, ThreadStackSize, \
duke@435	3107	"Thread Stack Size (in Kbytes)") \
duke@435	3108	\
duke@435	3109	product_pd(intx, VMThreadStackSize, \
duke@435	3110	"Non-Java Thread Stack Size (in Kbytes)") \
duke@435	3111	\
duke@435	3112	product_pd(intx, CompilerThreadStackSize, \
duke@435	3113	"Compiler Thread Stack Size (in Kbytes)") \
duke@435	3114	\
duke@435	3115	develop_pd(uintx, JVMInvokeMethodSlack, \
duke@435	3116	"Stack space (bytes) required for JVM_InvokeMethod to complete") \
duke@435	3117	\
duke@435	3118	product(uintx, ThreadSafetyMargin, 50*M, \
duke@435	3119	"Thread safety margin is used on fixed-stack LinuxThreads (on " \
duke@435	3120	"Linux/x86 only) to prevent heap-stack collision. Set to 0 to " \
duke@435	3121	"disable this feature") \
duke@435	3122	\
duke@435	3123	/* code cache parameters */ \
duke@435	3124	develop(uintx, CodeCacheSegmentSize, 64, \
duke@435	3125	"Code cache segment size (in bytes) - smallest unit of " \
duke@435	3126	"allocation") \
duke@435	3127	\
duke@435	3128	develop_pd(intx, CodeEntryAlignment, \
duke@435	3129	"Code entry alignment for generated code (in bytes)") \
duke@435	3130	\
kvn@1800	3131	product_pd(intx, OptoLoopAlignment, \
kvn@1800	3132	"Align inner loops to zero relative to this modulus") \
kvn@1800	3133	\
duke@435	3134	product_pd(uintx, InitialCodeCacheSize, \
duke@435	3135	"Initial code cache size (in bytes)") \
duke@435	3136	\
duke@435	3137	product_pd(uintx, ReservedCodeCacheSize, \
duke@435	3138	"Reserved code cache size (in bytes) - maximum code cache size") \
duke@435	3139	\
duke@435	3140	product(uintx, CodeCacheMinimumFreeSpace, 500*K, \
duke@435	3141	"When less than X space left, we stop compiling.") \
duke@435	3142	\
duke@435	3143	product_pd(uintx, CodeCacheExpansionSize, \
duke@435	3144	"Code cache expansion size (in bytes)") \
duke@435	3145	\
duke@435	3146	develop_pd(uintx, CodeCacheMinBlockLength, \
duke@435	3147	"Minimum number of segments in a code cache block.") \
duke@435	3148	\
duke@435	3149	notproduct(bool, ExitOnFullCodeCache, false, \
duke@435	3150	"Exit the VM if we fill the code cache.") \
duke@435	3151	\
kvn@1637	3152	product(bool, UseCodeCacheFlushing, false, \
kvn@1637	3153	"Attempt to clean the code cache before shutting off compiler") \
kvn@1637	3154	\
kvn@1637	3155	product(intx, MinCodeCacheFlushingInterval, 30, \
kvn@1637	3156	"Min number of seconds between code cache cleaning sessions") \
kvn@1637	3157	\
kvn@1637	3158	product(uintx, CodeCacheFlushingMinimumFreeSpace, 1500*K, \
kvn@1637	3159	"When less than X space left, start code cache cleaning") \
kvn@1637	3160	\
duke@435	3161	/* interpreter debugging */ \
duke@435	3162	develop(intx, BinarySwitchThreshold, 5, \
duke@435	3163	"Minimal number of lookupswitch entries for rewriting to binary " \
duke@435	3164	"switch") \
duke@435	3165	\
duke@435	3166	develop(intx, StopInterpreterAt, 0, \
duke@435	3167	"Stops interpreter execution at specified bytecode number") \
duke@435	3168	\
duke@435	3169	develop(intx, TraceBytecodesAt, 0, \
duke@435	3170	"Traces bytecodes starting with specified bytecode number") \
duke@435	3171	\
duke@435	3172	/* compiler interface */ \
duke@435	3173	develop(intx, CIStart, 0, \
duke@435	3174	"the id of the first compilation to permit") \
duke@435	3175	\
duke@435	3176	develop(intx, CIStop, -1, \
duke@435	3177	"the id of the last compilation to permit") \
duke@435	3178	\
duke@435	3179	develop(intx, CIStartOSR, 0, \
duke@435	3180	"the id of the first osr compilation to permit " \
duke@435	3181	"(CICountOSR must be on)") \
duke@435	3182	\
duke@435	3183	develop(intx, CIStopOSR, -1, \
duke@435	3184	"the id of the last osr compilation to permit " \
duke@435	3185	"(CICountOSR must be on)") \
duke@435	3186	\
duke@435	3187	develop(intx, CIBreakAtOSR, -1, \
duke@435	3188	"id of osr compilation to break at") \
duke@435	3189	\
duke@435	3190	develop(intx, CIBreakAt, -1, \
duke@435	3191	"id of compilation to break at") \
duke@435	3192	\
duke@435	3193	product(ccstrlist, CompileOnly, "", \
duke@435	3194	"List of methods (pkg/class.name) to restrict compilation to") \
duke@435	3195	\
duke@435	3196	product(ccstr, CompileCommandFile, NULL, \
duke@435	3197	"Read compiler commands from this file [.hotspot_compiler]") \
duke@435	3198	\
duke@435	3199	product(ccstrlist, CompileCommand, "", \
duke@435	3200	"Prepend to .hotspot_compiler; e.g. log,java/lang/String.<init>") \
duke@435	3201	\
duke@435	3202	product(bool, CICompilerCountPerCPU, false, \
duke@435	3203	"1 compiler thread for log(N CPUs)") \
duke@435	3204	\
duke@435	3205	develop(intx, CIFireOOMAt, -1, \
duke@435	3206	"Fire OutOfMemoryErrors throughout CI for testing the compiler " \
duke@435	3207	"(non-negative value throws OOM after this many CI accesses " \
duke@435	3208	"in each compile)") \
duke@435	3209	\
duke@435	3210	develop(intx, CIFireOOMAtDelay, -1, \
duke@435	3211	"Wait for this many CI accesses to occur in all compiles before " \
duke@435	3212	"beginning to throw OutOfMemoryErrors in each compile") \
duke@435	3213	\
jcoomes@1344	3214	notproduct(bool, CIObjectFactoryVerify, false, \
jcoomes@1344	3215	"enable potentially expensive verification in ciObjectFactory") \
jcoomes@1344	3216	\
duke@435	3217	/* Priorities */ \
duke@435	3218	product_pd(bool, UseThreadPriorities, "Use native thread priorities") \
duke@435	3219	\
duke@435	3220	product(intx, ThreadPriorityPolicy, 0, \
duke@435	3221	"0 : Normal. "\
duke@435	3222	" VM chooses priorities that are appropriate for normal "\
duke@435	3223	" applications. On Solaris NORM_PRIORITY and above are mapped "\
duke@435	3224	" to normal native priority. Java priorities below NORM_PRIORITY"\
duke@435	3225	" map to lower native priority values. On Windows applications"\
duke@435	3226	" are allowed to use higher native priorities. However, with "\
duke@435	3227	" ThreadPriorityPolicy=0, VM will not use the highest possible"\
duke@435	3228	" native priority, THREAD_PRIORITY_TIME_CRITICAL, as it may "\
duke@435	3229	" interfere with system threads. On Linux thread priorities "\
duke@435	3230	" are ignored because the OS does not support static priority "\
duke@435	3231	" in SCHED_OTHER scheduling class which is the only choice for"\
duke@435	3232	" non-root, non-realtime applications. "\
duke@435	3233	"1 : Aggressive. "\
duke@435	3234	" Java thread priorities map over to the entire range of "\
duke@435	3235	" native thread priorities. Higher Java thread priorities map "\
duke@435	3236	" to higher native thread priorities. This policy should be "\
duke@435	3237	" used with care, as sometimes it can cause performance "\
duke@435	3238	" degradation in the application and/or the entire system. On "\
duke@435	3239	" Linux this policy requires root privilege.") \
duke@435	3240	\
duke@435	3241	product(bool, ThreadPriorityVerbose, false, \
duke@435	3242	"print priority changes") \
duke@435	3243	\
duke@435	3244	product(intx, DefaultThreadPriority, -1, \
duke@435	3245	"what native priority threads run at if not specified elsewhere (-1 means no change)") \
duke@435	3246	\
duke@435	3247	product(intx, CompilerThreadPriority, -1, \
duke@435	3248	"what priority should compiler threads run at (-1 means no change)") \
duke@435	3249	\
duke@435	3250	product(intx, VMThreadPriority, -1, \
duke@435	3251	"what priority should VM threads run at (-1 means no change)") \
duke@435	3252	\
duke@435	3253	product(bool, CompilerThreadHintNoPreempt, true, \
duke@435	3254	"(Solaris only) Give compiler threads an extra quanta") \
duke@435	3255	\
duke@435	3256	product(bool, VMThreadHintNoPreempt, false, \
duke@435	3257	"(Solaris only) Give VM thread an extra quanta") \
duke@435	3258	\
duke@435	3259	product(intx, JavaPriority1_To_OSPriority, -1, "Map Java priorities to OS priorities") \
duke@435	3260	product(intx, JavaPriority2_To_OSPriority, -1, "Map Java priorities to OS priorities") \
duke@435	3261	product(intx, JavaPriority3_To_OSPriority, -1, "Map Java priorities to OS priorities") \
duke@435	3262	product(intx, JavaPriority4_To_OSPriority, -1, "Map Java priorities to OS priorities") \
duke@435	3263	product(intx, JavaPriority5_To_OSPriority, -1, "Map Java priorities to OS priorities") \
duke@435	3264	product(intx, JavaPriority6_To_OSPriority, -1, "Map Java priorities to OS priorities") \
duke@435	3265	product(intx, JavaPriority7_To_OSPriority, -1, "Map Java priorities to OS priorities") \
duke@435	3266	product(intx, JavaPriority8_To_OSPriority, -1, "Map Java priorities to OS priorities") \
duke@435	3267	product(intx, JavaPriority9_To_OSPriority, -1, "Map Java priorities to OS priorities") \
duke@435	3268	product(intx, JavaPriority10_To_OSPriority,-1, "Map Java priorities to OS priorities") \
duke@435	3269	\
duke@435	3270	/* compiler debugging */ \
duke@435	3271	notproduct(intx, CompileTheWorldStartAt, 1, \
duke@435	3272	"First class to consider when using +CompileTheWorld") \
duke@435	3273	\
duke@435	3274	notproduct(intx, CompileTheWorldStopAt, max_jint, \
duke@435	3275	"Last class to consider when using +CompileTheWorld") \
duke@435	3276	\
duke@435	3277	develop(intx, NewCodeParameter, 0, \
duke@435	3278	"Testing Only: Create a dedicated integer parameter before " \
duke@435	3279	"putback") \
duke@435	3280	\
duke@435	3281	/* new oopmap storage allocation */ \
duke@435	3282	develop(intx, MinOopMapAllocation, 8, \
duke@435	3283	"Minimum number of OopMap entries in an OopMapSet") \
duke@435	3284	\
duke@435	3285	/* Background Compilation */ \
duke@435	3286	develop(intx, LongCompileThreshold, 50, \
duke@435	3287	"Used with +TraceLongCompiles") \
duke@435	3288	\
duke@435	3289	product(intx, StarvationMonitorInterval, 200, \
duke@435	3290	"Pause between each check in ms") \
duke@435	3291	\
duke@435	3292	/* recompilation */ \
duke@435	3293	product_pd(intx, CompileThreshold, \
duke@435	3294	"number of interpreted method invocations before (re-)compiling") \
duke@435	3295	\
duke@435	3296	product_pd(intx, BackEdgeThreshold, \
duke@435	3297	"Interpreter Back edge threshold at which an OSR compilation is invoked")\
duke@435	3298	\
iveresov@2138	3299	product(intx, Tier0InvokeNotifyFreqLog, 7, \
iveresov@2138	3300	"Interpreter (tier 0) invocation notification frequency.") \
iveresov@2138	3301	\
iveresov@2138	3302	product(intx, Tier2InvokeNotifyFreqLog, 11, \
iveresov@2138	3303	"C1 without MDO (tier 2) invocation notification frequency.") \
iveresov@2138	3304	\
iveresov@2138	3305	product(intx, Tier3InvokeNotifyFreqLog, 10, \
iveresov@2138	3306	"C1 with MDO profiling (tier 3) invocation notification " \
iveresov@2138	3307	"frequency.") \
iveresov@2138	3308	\
iveresov@2138	3309	product(intx, Tier0BackedgeNotifyFreqLog, 10, \
iveresov@2138	3310	"Interpreter (tier 0) invocation notification frequency.") \
iveresov@2138	3311	\
iveresov@2138	3312	product(intx, Tier2BackedgeNotifyFreqLog, 14, \
iveresov@2138	3313	"C1 without MDO (tier 2) invocation notification frequency.") \
iveresov@2138	3314	\
iveresov@2138	3315	product(intx, Tier3BackedgeNotifyFreqLog, 13, \
iveresov@2138	3316	"C1 with MDO profiling (tier 3) invocation notification " \
iveresov@2138	3317	"frequency.") \
iveresov@2138	3318	\
iveresov@2138	3319	product(intx, Tier2CompileThreshold, 0, \
iveresov@2138	3320	"threshold at which tier 2 compilation is invoked") \
iveresov@2138	3321	\
iveresov@2138	3322	product(intx, Tier2BackEdgeThreshold, 0, \
iveresov@2138	3323	"Back edge threshold at which tier 2 compilation is invoked") \
iveresov@2138	3324	\
iveresov@2138	3325	product(intx, Tier3InvocationThreshold, 200, \
iveresov@2138	3326	"Compile if number of method invocations crosses this " \
iveresov@2138	3327	"threshold") \
iveresov@2138	3328	\
iveresov@2138	3329	product(intx, Tier3MinInvocationThreshold, 100, \
iveresov@2138	3330	"Minimum invocation to compile at tier 3") \
iveresov@2138	3331	\
iveresov@2138	3332	product(intx, Tier3CompileThreshold, 2000, \
iveresov@2138	3333	"Threshold at which tier 3 compilation is invoked (invocation " \
iveresov@2138	3334	"minimum must be satisfied.") \
iveresov@2138	3335	\
iveresov@2138	3336	product(intx, Tier3BackEdgeThreshold, 7000, \
iveresov@2138	3337	"Back edge threshold at which tier 3 OSR compilation is invoked") \
iveresov@2138	3338	\
iveresov@2138	3339	product(intx, Tier4InvocationThreshold, 5000, \
iveresov@2138	3340	"Compile if number of method invocations crosses this " \
iveresov@2138	3341	"threshold") \
iveresov@2138	3342	\
iveresov@2138	3343	product(intx, Tier4MinInvocationThreshold, 600, \
iveresov@2138	3344	"Minimum invocation to compile at tier 4") \
iveresov@2138	3345	\
iveresov@2138	3346	product(intx, Tier4CompileThreshold, 15000, \
iveresov@2138	3347	"Threshold at which tier 4 compilation is invoked (invocation " \
iveresov@2138	3348	"minimum must be satisfied.") \
iveresov@2138	3349	\
iveresov@2138	3350	product(intx, Tier4BackEdgeThreshold, 40000, \
iveresov@2138	3351	"Back edge threshold at which tier 4 OSR compilation is invoked") \
iveresov@2138	3352	\
iveresov@2138	3353	product(intx, Tier3DelayOn, 5, \
iveresov@2138	3354	"If C2 queue size grows over this amount per compiler thread " \
iveresov@2138	3355	"stop compiling at tier 3 and start compiling at tier 2") \
iveresov@2138	3356	\
iveresov@2138	3357	product(intx, Tier3DelayOff, 2, \
iveresov@2138	3358	"If C2 queue size is less than this amount per compiler thread " \
iveresov@2138	3359	"allow methods compiled at tier 2 transition to tier 3") \
iveresov@2138	3360	\
iveresov@2138	3361	product(intx, Tier3LoadFeedback, 5, \
iveresov@2138	3362	"Tier 3 thresholds will increase twofold when C1 queue size " \
iveresov@2138	3363	"reaches this amount per compiler thread") \
iveresov@2138	3364	\
iveresov@2138	3365	product(intx, Tier4LoadFeedback, 3, \
iveresov@2138	3366	"Tier 4 thresholds will increase twofold when C2 queue size " \
iveresov@2138	3367	"reaches this amount per compiler thread") \
iveresov@2138	3368	\
iveresov@2138	3369	product(intx, TieredCompileTaskTimeout, 50, \
iveresov@2138	3370	"Kill compile task if method was not used within " \
iveresov@2138	3371	"given timeout in milliseconds") \
iveresov@2138	3372	\
iveresov@2138	3373	product(intx, TieredStopAtLevel, 4, \
iveresov@2138	3374	"Stop at given compilation level") \
iveresov@2138	3375	\
iveresov@2138	3376	product(intx, Tier0ProfilingStartPercentage, 200, \
iveresov@2138	3377	"Start profiling in interpreter if the counters exceed tier 3" \
iveresov@2138	3378	"thresholds by the specified percentage") \
iveresov@2138	3379	\
iveresov@2138	3380	product(intx, TieredRateUpdateMinTime, 1, \
iveresov@2138	3381	"Minimum rate sampling interval (in milliseconds)") \
iveresov@2138	3382	\
iveresov@2138	3383	product(intx, TieredRateUpdateMaxTime, 25, \
iveresov@2138	3384	"Maximum rate sampling interval (in milliseconds)") \
duke@435	3385	\
duke@435	3386	product_pd(bool, TieredCompilation, \
iveresov@2138	3387	"Enable tiered compilation") \
iveresov@2138	3388	\
iveresov@2138	3389	product(bool, PrintTieredEvents, false, \
iveresov@2138	3390	"Print tiered events notifications") \
duke@435	3391	\
duke@435	3392	product(bool, StressTieredRuntime, false, \
duke@435	3393	"Alternate client and server compiler on compile requests") \
duke@435	3394	\
duke@435	3395	product_pd(intx, OnStackReplacePercentage, \
duke@435	3396	"NON_TIERED number of method invocations/branches (expressed as %"\
duke@435	3397	"of CompileThreshold) before (re-)compiling OSR code") \
duke@435	3398	\
duke@435	3399	product(intx, InterpreterProfilePercentage, 33, \
duke@435	3400	"NON_TIERED number of method invocations/branches (expressed as %"\
duke@435	3401	"of CompileThreshold) before profiling in the interpreter") \
duke@435	3402	\
duke@435	3403	develop(intx, MaxRecompilationSearchLength, 10, \
duke@435	3404	"max. # frames to inspect searching for recompilee") \
duke@435	3405	\
duke@435	3406	develop(intx, MaxInterpretedSearchLength, 3, \
duke@435	3407	"max. # interp. frames to skip when searching for recompilee") \
duke@435	3408	\
duke@435	3409	develop(intx, DesiredMethodLimit, 8000, \
duke@435	3410	"desired max. method size (in bytecodes) after inlining") \
duke@435	3411	\
duke@435	3412	develop(intx, HugeMethodLimit, 8000, \
duke@435	3413	"don't compile methods larger than this if " \
duke@435	3414	"+DontCompileHugeMethods") \
duke@435	3415	\
duke@435	3416	/* New JDK 1.4 reflection implementation */ \
duke@435	3417	\
duke@435	3418	develop(bool, UseNewReflection, true, \
duke@435	3419	"Temporary flag for transition to reflection based on dynamic " \
duke@435	3420	"bytecode generation in 1.4; can no longer be turned off in 1.4 " \
duke@435	3421	"JDK, and is unneeded in 1.3 JDK, but marks most places VM " \
duke@435	3422	"changes were needed") \
duke@435	3423	\
duke@435	3424	develop(bool, VerifyReflectionBytecodes, false, \
duke@435	3425	"Force verification of 1.4 reflection bytecodes. Does not work " \
duke@435	3426	"in situations like that described in 4486457 or for " \
duke@435	3427	"constructors generated for serialization, so can not be enabled "\
duke@435	3428	"in product.") \
duke@435	3429	\
duke@435	3430	product(bool, ReflectionWrapResolutionErrors, true, \
duke@435	3431	"Temporary flag for transition to AbstractMethodError wrapped " \
duke@435	3432	"in InvocationTargetException. See 6531596") \
duke@435	3433	\
duke@435	3434	\
duke@435	3435	develop(intx, FastSuperclassLimit, 8, \
duke@435	3436	"Depth of hardwired instanceof accelerator array") \
duke@435	3437	\
duke@435	3438	/* Properties for Java libraries */ \
duke@435	3439	\
duke@435	3440	product(intx, MaxDirectMemorySize, -1, \
duke@435	3441	"Maximum total size of NIO direct-buffer allocations") \
duke@435	3442	\
duke@435	3443	/* temporary developer defined flags */ \
duke@435	3444	\
duke@435	3445	diagnostic(bool, UseNewCode, false, \
duke@435	3446	"Testing Only: Use the new version while testing") \
duke@435	3447	\
duke@435	3448	diagnostic(bool, UseNewCode2, false, \
duke@435	3449	"Testing Only: Use the new version while testing") \
duke@435	3450	\
duke@435	3451	diagnostic(bool, UseNewCode3, false, \
duke@435	3452	"Testing Only: Use the new version while testing") \
duke@435	3453	\
duke@435	3454	/* flags for performance data collection */ \
duke@435	3455	\
duke@435	3456	product(bool, UsePerfData, true, \
duke@435	3457	"Flag to disable jvmstat instrumentation for performance testing" \
duke@435	3458	"and problem isolation purposes.") \
duke@435	3459	\
duke@435	3460	product(bool, PerfDataSaveToFile, false, \
duke@435	3461	"Save PerfData memory to hsperfdata_<pid> file on exit") \
duke@435	3462	\
duke@435	3463	product(ccstr, PerfDataSaveFile, NULL, \
duke@435	3464	"Save PerfData memory to the specified absolute pathname," \
duke@435	3465	"%p in the file name if present will be replaced by pid") \
duke@435	3466	\
duke@435	3467	product(intx, PerfDataSamplingInterval, 50 /*ms*/, \
duke@435	3468	"Data sampling interval in milliseconds") \
duke@435	3469	\
duke@435	3470	develop(bool, PerfTraceDataCreation, false, \
duke@435	3471	"Trace creation of Performance Data Entries") \
duke@435	3472	\
duke@435	3473	develop(bool, PerfTraceMemOps, false, \
duke@435	3474	"Trace PerfMemory create/attach/detach calls") \
duke@435	3475	\
duke@435	3476	product(bool, PerfDisableSharedMem, false, \
duke@435	3477	"Store performance data in standard memory") \
duke@435	3478	\
duke@435	3479	product(intx, PerfDataMemorySize, 32*K, \
duke@435	3480	"Size of performance data memory region. Will be rounded " \
duke@435	3481	"up to a multiple of the native os page size.") \
duke@435	3482	\
duke@435	3483	product(intx, PerfMaxStringConstLength, 1024, \
duke@435	3484	"Maximum PerfStringConstant string length before truncation") \
duke@435	3485	\
duke@435	3486	product(bool, PerfAllowAtExitRegistration, false, \
duke@435	3487	"Allow registration of atexit() methods") \
duke@435	3488	\
duke@435	3489	product(bool, PerfBypassFileSystemCheck, false, \
duke@435	3490	"Bypass Win32 file system criteria checks (Windows Only)") \
duke@435	3491	\
duke@435	3492	product(intx, UnguardOnExecutionViolation, 0, \
duke@435	3493	"Unguard page and retry on no-execute fault (Win32 only)" \
duke@435	3494	"0=off, 1=conservative, 2=aggressive") \
duke@435	3495	\
duke@435	3496	/* Serviceability Support */ \
duke@435	3497	\
duke@435	3498	product(bool, ManagementServer, false, \
duke@435	3499	"Create JMX Management Server") \
duke@435	3500	\
duke@435	3501	product(bool, DisableAttachMechanism, false, \
duke@435	3502	"Disable mechanism that allows tools to attach to this VM") \
duke@435	3503	\
duke@435	3504	product(bool, StartAttachListener, false, \
duke@435	3505	"Always start Attach Listener at VM startup") \
duke@435	3506	\
duke@435	3507	manageable(bool, PrintConcurrentLocks, false, \
duke@435	3508	"Print java.util.concurrent locks in thread dump") \
duke@435	3509	\
duke@435	3510	/* Shared spaces */ \
duke@435	3511	\
duke@435	3512	product(bool, UseSharedSpaces, true, \
duke@435	3513	"Use shared spaces in the permanent generation") \
duke@435	3514	\
duke@435	3515	product(bool, RequireSharedSpaces, false, \
duke@435	3516	"Require shared spaces in the permanent generation") \
duke@435	3517	\
duke@435	3518	product(bool, ForceSharedSpaces, false, \
duke@435	3519	"Require shared spaces in the permanent generation") \
duke@435	3520	\
duke@435	3521	product(bool, DumpSharedSpaces, false, \
duke@435	3522	"Special mode: JVM reads a class list, loads classes, builds " \
duke@435	3523	"shared spaces, and dumps the shared spaces to a file to be " \
duke@435	3524	"used in future JVM runs.") \
duke@435	3525	\
duke@435	3526	product(bool, PrintSharedSpaces, false, \
duke@435	3527	"Print usage of shared spaces") \
duke@435	3528	\
duke@435	3529	product(uintx, SharedDummyBlockSize, 512*M, \
duke@435	3530	"Size of dummy block used to shift heap addresses (in bytes)") \
duke@435	3531	\
duke@435	3532	product(uintx, SharedReadWriteSize, 12*M, \
duke@435	3533	"Size of read-write space in permanent generation (in bytes)") \
duke@435	3534	\
jcoomes@1345	3535	product(uintx, SharedReadOnlySize, 10*M, \
duke@435	3536	"Size of read-only space in permanent generation (in bytes)") \
duke@435	3537	\
duke@435	3538	product(uintx, SharedMiscDataSize, 4*M, \
duke@435	3539	"Size of the shared data area adjacent to the heap (in bytes)") \
duke@435	3540	\
duke@435	3541	product(uintx, SharedMiscCodeSize, 4*M, \
duke@435	3542	"Size of the shared code area adjacent to the heap (in bytes)") \
duke@435	3543	\
duke@435	3544	diagnostic(bool, SharedOptimizeColdStart, true, \
duke@435	3545	"At dump time, order shared objects to achieve better " \
duke@435	3546	"cold startup time.") \
duke@435	3547	\
duke@435	3548	develop(intx, SharedOptimizeColdStartPolicy, 2, \
duke@435	3549	"Reordering policy for SharedOptimizeColdStart " \
duke@435	3550	"0=favor classload-time locality, 1=balanced, " \
duke@435	3551	"2=favor runtime locality") \
duke@435	3552	\
duke@435	3553	diagnostic(bool, SharedSkipVerify, false, \
duke@435	3554	"Skip assert() and verify() which page-in unwanted shared " \
duke@435	3555	"objects. ") \
duke@435	3556	\
jrose@866	3557	product(bool, AnonymousClasses, false, \
jrose@866	3558	"support sun.misc.Unsafe.defineAnonymousClass") \
jrose@866	3559	\
jrose@1340	3560	experimental(bool, EnableMethodHandles, false, \
jrose@1145	3561	"support method handles (true by default under JSR 292)") \
jrose@1145	3562	\
jrose@1145	3563	diagnostic(intx, MethodHandlePushLimit, 3, \
jrose@1145	3564	"number of additional stack slots a method handle may push") \
jrose@1145	3565	\
jrose@1145	3566	develop(bool, TraceMethodHandles, false, \
jrose@1145	3567	"trace internal method handle operations") \
jrose@1145	3568	\
jrose@1145	3569	diagnostic(bool, VerifyMethodHandles, trueInDebug, \
jrose@1145	3570	"perform extra checks when constructing method handles") \
jrose@1145	3571	\
jrose@1145	3572	diagnostic(bool, OptimizeMethodHandles, true, \
jrose@1145	3573	"when constructing method handles, try to improve them") \
jrose@1145	3574	\
jrose@1608	3575	experimental(bool, TrustFinalNonStaticFields, false, \
jrose@1608	3576	"trust final non-static declarations for constant folding") \
jrose@1608	3577	\
jrose@1340	3578	experimental(bool, EnableInvokeDynamic, false, \
jrose@1161	3579	"recognize the invokedynamic instruction") \
jrose@1161	3580	\
jrose@2015	3581	experimental(bool, AllowTransitionalJSR292, true, \
jrose@2015	3582	"recognize pre-PFD formats of invokedynamic") \
jrose@2015	3583	\
jrose@1161	3584	develop(bool, TraceInvokeDynamic, false, \
jrose@1161	3585	"trace internal invoke dynamic operations") \
jrose@1161	3586	\
duke@435	3587	diagnostic(bool, PauseAtStartup, false, \
duke@435	3588	"Causes the VM to pause at startup time and wait for the pause " \
duke@435	3589	"file to be removed (default: ./vm.paused.<pid>)") \
duke@435	3590	\
duke@435	3591	diagnostic(ccstr, PauseAtStartupFile, NULL, \
duke@435	3592	"The file to create and for whose removal to await when pausing " \
duke@435	3593	"at startup. (default: ./vm.paused.<pid>)") \
duke@435	3594	\
duke@435	3595	product(bool, ExtendedDTraceProbes, false, \
duke@435	3596	"Enable performance-impacting dtrace probes") \
duke@435	3597	\
duke@435	3598	product(bool, DTraceMethodProbes, false, \
duke@435	3599	"Enable dtrace probes for method-entry and method-exit") \
duke@435	3600	\
duke@435	3601	product(bool, DTraceAllocProbes, false, \
duke@435	3602	"Enable dtrace probes for object allocation") \
duke@435	3603	\
duke@435	3604	product(bool, DTraceMonitorProbes, false, \
duke@435	3605	"Enable dtrace probes for monitor events") \
duke@435	3606	\
duke@435	3607	product(bool, RelaxAccessControlCheck, false, \
duke@435	3608	"Relax the access control checks in the verifier") \
duke@435	3609	\
kamg@551	3610	diagnostic(bool, PrintDTraceDOF, false, \
kamg@551	3611	"Print the DTrace DOF passed to the system for JSDT probes") \
kamg@551	3612	\
xlu@884	3613	product(bool, UseVMInterruptibleIO, false, \
duke@435	3614	"(Unstable, Solaris-specific) Thread interrupt before or with " \
xlu@884	3615	"EINTR for I/O operations results in OS_INTRPT. The default value"\
xlu@884	3616	" of this flag is true for JDK 6 and earliers")
duke@435	3617
duke@435	3618	/*
duke@435	3619	* Macros for factoring of globals
duke@435	3620	*/
duke@435	3621
duke@435	3622	// Interface macros
duke@435	3623	#define DECLARE_PRODUCT_FLAG(type, name, value, doc) extern "C" type name;
duke@435	3624	#define DECLARE_PD_PRODUCT_FLAG(type, name, doc) extern "C" type name;
duke@435	3625	#define DECLARE_DIAGNOSTIC_FLAG(type, name, value, doc) extern "C" type name;
ysr@785	3626	#define DECLARE_EXPERIMENTAL_FLAG(type, name, value, doc) extern "C" type name;
duke@435	3627	#define DECLARE_MANAGEABLE_FLAG(type, name, value, doc) extern "C" type name;
duke@435	3628	#define DECLARE_PRODUCT_RW_FLAG(type, name, value, doc) extern "C" type name;
duke@435	3629	#ifdef PRODUCT
duke@435	3630	#define DECLARE_DEVELOPER_FLAG(type, name, value, doc) const type name = value;
duke@435	3631	#define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) const type name = pd_##name;
duke@435	3632	#define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc)
duke@435	3633	#else
duke@435	3634	#define DECLARE_DEVELOPER_FLAG(type, name, value, doc) extern "C" type name;
duke@435	3635	#define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) extern "C" type name;
duke@435	3636	#define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) extern "C" type name;
duke@435	3637	#endif
coleenp@548	3638	// Special LP64 flags, product only needed for now.
coleenp@548	3639	#ifdef _LP64
coleenp@548	3640	#define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) extern "C" type name;
coleenp@548	3641	#else
coleenp@548	3642	#define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) const type name = value;
coleenp@548	3643	#endif // _LP64
duke@435	3644
duke@435	3645	// Implementation macros
duke@435	3646	#define MATERIALIZE_PRODUCT_FLAG(type, name, value, doc) type name = value;
duke@435	3647	#define MATERIALIZE_PD_PRODUCT_FLAG(type, name, doc) type name = pd_##name;
duke@435	3648	#define MATERIALIZE_DIAGNOSTIC_FLAG(type, name, value, doc) type name = value;
ysr@785	3649	#define MATERIALIZE_EXPERIMENTAL_FLAG(type, name, value, doc) type name = value;
duke@435	3650	#define MATERIALIZE_MANAGEABLE_FLAG(type, name, value, doc) type name = value;
duke@435	3651	#define MATERIALIZE_PRODUCT_RW_FLAG(type, name, value, doc) type name = value;
duke@435	3652	#ifdef PRODUCT
duke@435	3653	#define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) /* flag name is constant */
duke@435	3654	#define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) /* flag name is constant */
duke@435	3655	#define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc)
duke@435	3656	#else
duke@435	3657	#define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) type name = value;
duke@435	3658	#define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) type name = pd_##name;
duke@435	3659	#define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) type name = value;
duke@435	3660	#endif
coleenp@548	3661	#ifdef _LP64
coleenp@548	3662	#define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) type name = value;
coleenp@548	3663	#else
coleenp@548	3664	#define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) /* flag is constant */
coleenp@548	3665	#endif // _LP64
duke@435	3666
ysr@785	3667	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	3668
duke@435	3669	RUNTIME_OS_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_NOTPRODUCT_FLAG)