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src/share/vm/runtime/globals.hpp@922aedc96ef5 (annotated)

src/share/vm/runtime/globals.hpp

Fri, 03 Apr 2009 15:59:19 -0700

author

ysr

date

Fri, 03 Apr 2009 15:59:19 -0700

changeset 1132

922aedc96ef5

parent 1130

becb17ad5e51

parent 1120

4e35bfab60a5

child 1147

6e33bfd4139b

permissions

-rw-r--r--

Merge

duke@435	1	/*
twisti@1078	2	* Copyright 1997-2009 Sun Microsystems, Inc. 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	*
duke@435	19	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435	20	* CA 95054 USA or visit www.sun.com if you need additional information or
duke@435	21	* have any questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	#if !defined(COMPILER1) && !defined(COMPILER2)
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, Tier2CompileThreshold, 0);
duke@435	39	define_pd_global(intx, Tier3CompileThreshold, 0);
duke@435	40	define_pd_global(intx, Tier4CompileThreshold, 0);
duke@435	41
duke@435	42	define_pd_global(intx, BackEdgeThreshold, 0);
duke@435	43	define_pd_global(intx, Tier2BackEdgeThreshold, 0);
duke@435	44	define_pd_global(intx, Tier3BackEdgeThreshold, 0);
duke@435	45	define_pd_global(intx, Tier4BackEdgeThreshold, 0);
duke@435	46
duke@435	47	define_pd_global(intx, OnStackReplacePercentage, 0);
duke@435	48	define_pd_global(bool, ResizeTLAB, false);
duke@435	49	define_pd_global(intx, FreqInlineSize, 0);
kvn@1110	50	define_pd_global(intx, InlineSmallCode, 0);
duke@435	51	define_pd_global(intx, NewSizeThreadIncrease, 4*K);
duke@435	52	define_pd_global(intx, NewRatio, 4);
duke@435	53	define_pd_global(intx, InlineClassNatives, true);
duke@435	54	define_pd_global(intx, InlineUnsafeOps, true);
duke@435	55	define_pd_global(intx, InitialCodeCacheSize, 160*K);
duke@435	56	define_pd_global(intx, ReservedCodeCacheSize, 32*M);
duke@435	57	define_pd_global(intx, CodeCacheExpansionSize, 32*K);
duke@435	58	define_pd_global(intx, CodeCacheMinBlockLength, 1);
duke@435	59	define_pd_global(uintx,PermSize, ScaleForWordSize(4*M));
duke@435	60	define_pd_global(uintx,MaxPermSize, ScaleForWordSize(64*M));
duke@435	61	define_pd_global(bool, NeverActAsServerClassMachine, true);
duke@435	62	define_pd_global(uintx, DefaultMaxRAM, 1*G);
duke@435	63	#define CI_COMPILER_COUNT 0
duke@435	64	#else
duke@435	65
duke@435	66	#ifdef COMPILER2
duke@435	67	#define CI_COMPILER_COUNT 2
duke@435	68	#else
duke@435	69	#define CI_COMPILER_COUNT 1
duke@435	70	#endif // COMPILER2
duke@435	71
duke@435	72	#endif // no compilers
duke@435	73
duke@435	74
duke@435	75	// string type aliases used only in this file
duke@435	76	typedef const char* ccstr;
duke@435	77	typedef const char* ccstrlist; // represents string arguments which accumulate
duke@435	78
duke@435	79	enum FlagValueOrigin {
duke@435	80	DEFAULT = 0,
duke@435	81	COMMAND_LINE = 1,
duke@435	82	ENVIRON_VAR = 2,
duke@435	83	CONFIG_FILE = 3,
duke@435	84	MANAGEMENT = 4,
duke@435	85	ERGONOMIC = 5,
duke@435	86	ATTACH_ON_DEMAND = 6,
duke@435	87	INTERNAL = 99
duke@435	88	};
duke@435	89
duke@435	90	struct Flag {
duke@435	91	const char *type;
duke@435	92	const char *name;
duke@435	93	void* addr;
duke@435	94	const char *kind;
duke@435	95	FlagValueOrigin origin;
duke@435	96
duke@435	97	// points to all Flags static array
duke@435	98	static Flag *flags;
duke@435	99
duke@435	100	// number of flags
duke@435	101	static size_t numFlags;
duke@435	102
duke@435	103	static Flag* find_flag(char* name, size_t length);
duke@435	104
duke@435	105	bool is_bool() const { return strcmp(type, "bool") == 0; }
duke@435	106	bool get_bool() const { return *((bool*) addr); }
duke@435	107	void set_bool(bool value) { *((bool*) addr) = value; }
duke@435	108
duke@435	109	bool is_intx() const { return strcmp(type, "intx") == 0; }
duke@435	110	intx get_intx() const { return *((intx*) addr); }
duke@435	111	void set_intx(intx value) { *((intx*) addr) = value; }
duke@435	112
duke@435	113	bool is_uintx() const { return strcmp(type, "uintx") == 0; }
duke@435	114	uintx get_uintx() const { return *((uintx*) addr); }
duke@435	115	void set_uintx(uintx value) { *((uintx*) addr) = value; }
duke@435	116
duke@435	117	bool is_double() const { return strcmp(type, "double") == 0; }
duke@435	118	double get_double() const { return *((double*) addr); }
duke@435	119	void set_double(double value) { *((double*) addr) = value; }
duke@435	120
duke@435	121	bool is_ccstr() const { return strcmp(type, "ccstr") == 0 || strcmp(type, "ccstrlist") == 0; }
duke@435	122	bool ccstr_accumulates() const { return strcmp(type, "ccstrlist") == 0; }
duke@435	123	ccstr get_ccstr() const { return *((ccstr*) addr); }
duke@435	124	void set_ccstr(ccstr value) { *((ccstr*) addr) = value; }
duke@435	125
duke@435	126	bool is_unlocker() const;
duke@435	127	bool is_unlocked() const;
duke@435	128	bool is_writeable() const;
duke@435	129	bool is_external() const;
duke@435	130
duke@435	131	void print_on(outputStream* st);
duke@435	132	void print_as_flag(outputStream* st);
duke@435	133	};
duke@435	134
duke@435	135	// debug flags control various aspects of the VM and are global accessible
duke@435	136
duke@435	137	// use FlagSetting to temporarily change some debug flag
duke@435	138	// e.g. FlagSetting fs(DebugThisAndThat, true);
duke@435	139	// restored to previous value upon leaving scope
duke@435	140	class FlagSetting {
duke@435	141	bool val;
duke@435	142	bool* flag;
duke@435	143	public:
duke@435	144	FlagSetting(bool& fl, bool newValue) { flag = &fl; val = fl; fl = newValue; }
duke@435	145	~FlagSetting() { *flag = val; }
duke@435	146	};
duke@435	147
duke@435	148
duke@435	149	class CounterSetting {
duke@435	150	intx* counter;
duke@435	151	public:
duke@435	152	CounterSetting(intx* cnt) { counter = cnt; (*counter)++; }
duke@435	153	~CounterSetting() { (*counter)--; }
duke@435	154	};
duke@435	155
duke@435	156
duke@435	157	class IntFlagSetting {
duke@435	158	intx val;
duke@435	159	intx* flag;
duke@435	160	public:
duke@435	161	IntFlagSetting(intx& fl, intx newValue) { flag = &fl; val = fl; fl = newValue; }
duke@435	162	~IntFlagSetting() { *flag = val; }
duke@435	163	};
duke@435	164
duke@435	165
duke@435	166	class DoubleFlagSetting {
duke@435	167	double val;
duke@435	168	double* flag;
duke@435	169	public:
duke@435	170	DoubleFlagSetting(double& fl, double newValue) { flag = &fl; val = fl; fl = newValue; }
duke@435	171	~DoubleFlagSetting() { *flag = val; }
duke@435	172	};
duke@435	173
duke@435	174
duke@435	175	class CommandLineFlags {
duke@435	176	public:
duke@435	177	static bool boolAt(char* name, size_t len, bool* value);
duke@435	178	static bool boolAt(char* name, bool* value) { return boolAt(name, strlen(name), value); }
duke@435	179	static bool boolAtPut(char* name, size_t len, bool* value, FlagValueOrigin origin);
duke@435	180	static bool boolAtPut(char* name, bool* value, FlagValueOrigin origin) { return boolAtPut(name, strlen(name), value, origin); }
duke@435	181
duke@435	182	static bool intxAt(char* name, size_t len, intx* value);
duke@435	183	static bool intxAt(char* name, intx* value) { return intxAt(name, strlen(name), value); }
duke@435	184	static bool intxAtPut(char* name, size_t len, intx* value, FlagValueOrigin origin);
duke@435	185	static bool intxAtPut(char* name, intx* value, FlagValueOrigin origin) { return intxAtPut(name, strlen(name), value, origin); }
duke@435	186
duke@435	187	static bool uintxAt(char* name, size_t len, uintx* value);
duke@435	188	static bool uintxAt(char* name, uintx* value) { return uintxAt(name, strlen(name), value); }
duke@435	189	static bool uintxAtPut(char* name, size_t len, uintx* value, FlagValueOrigin origin);
duke@435	190	static bool uintxAtPut(char* name, uintx* value, FlagValueOrigin origin) { return uintxAtPut(name, strlen(name), value, origin); }
duke@435	191
duke@435	192	static bool doubleAt(char* name, size_t len, double* value);
duke@435	193	static bool doubleAt(char* name, double* value) { return doubleAt(name, strlen(name), value); }
duke@435	194	static bool doubleAtPut(char* name, size_t len, double* value, FlagValueOrigin origin);
duke@435	195	static bool doubleAtPut(char* name, double* value, FlagValueOrigin origin) { return doubleAtPut(name, strlen(name), value, origin); }
duke@435	196
duke@435	197	static bool ccstrAt(char* name, size_t len, ccstr* value);
duke@435	198	static bool ccstrAt(char* name, ccstr* value) { return ccstrAt(name, strlen(name), value); }
duke@435	199	static bool ccstrAtPut(char* name, size_t len, ccstr* value, FlagValueOrigin origin);
duke@435	200	static bool ccstrAtPut(char* name, ccstr* value, FlagValueOrigin origin) { return ccstrAtPut(name, strlen(name), value, origin); }
duke@435	201
duke@435	202	// Returns false if name is not a command line flag.
duke@435	203	static bool wasSetOnCmdline(const char* name, bool* value);
duke@435	204	static void printSetFlags();
duke@435	205
duke@435	206	static void printFlags() PRODUCT_RETURN;
duke@435	207
duke@435	208	static void verify() PRODUCT_RETURN;
duke@435	209	};
duke@435	210
duke@435	211	// use this for flags that are true by default in the debug version but
duke@435	212	// false in the optimized version, and vice versa
duke@435	213	#ifdef ASSERT
duke@435	214	#define trueInDebug true
duke@435	215	#define falseInDebug false
duke@435	216	#else
duke@435	217	#define trueInDebug false
duke@435	218	#define falseInDebug true
duke@435	219	#endif
duke@435	220
duke@435	221	// use this for flags that are true per default in the product build
duke@435	222	// but false in development builds, and vice versa
duke@435	223	#ifdef PRODUCT
duke@435	224	#define trueInProduct true
duke@435	225	#define falseInProduct false
duke@435	226	#else
duke@435	227	#define trueInProduct false
duke@435	228	#define falseInProduct true
duke@435	229	#endif
duke@435	230
duke@435	231	// use this for flags that are true per default in the tiered build
duke@435	232	// but false in non-tiered builds, and vice versa
duke@435	233	#ifdef TIERED
duke@435	234	#define trueInTiered true
duke@435	235	#define falseInTiered false
duke@435	236	#else
duke@435	237	#define trueInTiered false
duke@435	238	#define falseInTiered true
duke@435	239	#endif
duke@435	240
duke@435	241	// develop flags are settable / visible only during development and are constant in the PRODUCT version
duke@435	242	// product flags are always settable / visible
duke@435	243	// notproduct flags are settable / visible only during development and are not declared in the PRODUCT version
duke@435	244
duke@435	245	// A flag must be declared with one of the following types:
duke@435	246	// bool, intx, uintx, ccstr.
duke@435	247	// The type "ccstr" is an alias for "const char*" and is used
duke@435	248	// only in this file, because the macrology requires single-token type names.
duke@435	249
duke@435	250	// Note: Diagnostic options not meant for VM tuning or for product modes.
duke@435	251	// They are to be used for VM quality assurance or field diagnosis
duke@435	252	// of VM bugs. They are hidden so that users will not be encouraged to
duke@435	253	// try them as if they were VM ordinary execution options. However, they
duke@435	254	// are available in the product version of the VM. Under instruction
duke@435	255	// from support engineers, VM customers can turn them on to collect
duke@435	256	// diagnostic information about VM problems. To use a VM diagnostic
duke@435	257	// option, you must first specify +UnlockDiagnosticVMOptions.
duke@435	258	// (This master switch also affects the behavior of -Xprintflags.)
ysr@785	259	//
ysr@785	260	// experimental flags are in support of features that are not
ysr@785	261	// part of the officially supported product, but are available
ysr@785	262	// for experimenting with. They could, for example, be performance
ysr@785	263	// features that may not have undergone full or rigorous QA, but which may
ysr@785	264	// help performance in some cases and released for experimentation
ysr@785	265	// by the community of users and developers. This flag also allows one to
ysr@785	266	// be able to build a fully supported product that nonetheless also
ysr@785	267	// ships with some unsupported, lightly tested, experimental features.
ysr@785	268	// Like the UnlockDiagnosticVMOptions flag above, there is a corresponding
ysr@785	269	// UnlockExperimentalVMOptions flag, which allows the control and
ysr@785	270	// modification of the experimental flags.
ysr@785	271	//
duke@435	272	// manageable flags are writeable external product flags.
duke@435	273	// They are dynamically writeable through the JDK management interface
duke@435	274	// (com.sun.management.HotSpotDiagnosticMXBean API) and also through JConsole.
duke@435	275	// These flags are external exported interface (see CCC). The list of
duke@435	276	// manageable flags can be queried programmatically through the management
duke@435	277	// interface.
duke@435	278	//
duke@435	279	// A flag can be made as "manageable" only if
duke@435	280	// - the flag is defined in a CCC as an external exported interface.
duke@435	281	// - the VM implementation supports dynamic setting of the flag.
duke@435	282	// This implies that the VM must *always* query the flag variable
duke@435	283	// and not reuse state related to the flag state at any given time.
duke@435	284	// - you want the flag to be queried programmatically by the customers.
duke@435	285	//
duke@435	286	// product_rw flags are writeable internal product flags.
duke@435	287	// They are like "manageable" flags but for internal/private use.
duke@435	288	// The list of product_rw flags are internal/private flags which
duke@435	289	// may be changed/removed in a future release. It can be set
duke@435	290	// through the management interface to get/set value
duke@435	291	// when the name of flag is supplied.
duke@435	292	//
duke@435	293	// A flag can be made as "product_rw" only if
duke@435	294	// - the VM implementation supports dynamic setting of the flag.
duke@435	295	// This implies that the VM must *always* query the flag variable
duke@435	296	// and not reuse state related to the flag state at any given time.
duke@435	297	//
duke@435	298	// Note that when there is a need to support develop flags to be writeable,
duke@435	299	// it can be done in the same way as product_rw.
duke@435	300
ysr@785	301	#define RUNTIME_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw, lp64_product) \
coleenp@548	302	\
coleenp@548	303	lp64_product(bool, UseCompressedOops, false, \
coleenp@548	304	"Use 32-bit object references in 64-bit VM. " \
coleenp@548	305	"lp64_product means flag is always constant in 32 bit VM") \
duke@435	306	\
kvn@1077	307	notproduct(bool, CheckCompressedOops, true, \
kvn@1077	308	"generate checks in encoding/decoding code in debug VM") \
kvn@1077	309	\
kvn@1077	310	product_pd(uintx, HeapBaseMinAddress, \
kvn@1077	311	"OS specific low limit for heap base address") \
kvn@1077	312	\
kvn@1077	313	diagnostic(bool, PrintCompressedOopsMode, false, \
kvn@1077	314	"Print compressed oops base address and encoding mode") \
coleenp@760	315	\
duke@435	316	/* UseMembar is theoretically a temp flag used for memory barrier \
duke@435	317	* removal testing. It was supposed to be removed before FCS but has \
duke@435	318	* been re-added (see 6401008) */ \
duke@435	319	product(bool, UseMembar, false, \
duke@435	320	"(Unstable) Issues membars on thread state transitions") \
duke@435	321	\
duke@435	322	product(bool, PrintCommandLineFlags, false, \
duke@435	323	"Prints flags that appeared on the command line") \
duke@435	324	\
duke@435	325	diagnostic(bool, UnlockDiagnosticVMOptions, trueInDebug, \
ysr@785	326	"Enable normal processing of flags relating to field diagnostics")\
ysr@785	327	\
ysr@785	328	experimental(bool, UnlockExperimentalVMOptions, false, \
ysr@785	329	"Enable normal processing of flags relating to experimental features")\
duke@435	330	\
duke@435	331	product(bool, JavaMonitorsInStackTrace, true, \
duke@435	332	"Print info. about Java monitor locks when the stacks are dumped")\
duke@435	333	\
duke@435	334	product_pd(bool, UseLargePages, \
duke@435	335	"Use large page memory") \
duke@435	336	\
jmasa@824	337	product_pd(bool, UseLargePagesIndividualAllocation, \
jmasa@824	338	"Allocate large pages individually for better affinity") \
jmasa@824	339	\
jmasa@824	340	develop(bool, LargePagesIndividualAllocationInjectError, false, \
jmasa@824	341	"Fail large pages individual allocation") \
jmasa@824	342	\
duke@435	343	develop(bool, TracePageSizes, false, \
duke@435	344	"Trace page size selection and usage.") \
duke@435	345	\
duke@435	346	product(bool, UseNUMA, false, \
duke@435	347	"Use NUMA if available") \
duke@435	348	\
iveresov@897	349	product(bool, ForceNUMA, false, \
iveresov@897	350	"Force NUMA optimizations on single-node/UMA systems") \
iveresov@897	351	\
duke@435	352	product(intx, NUMAChunkResizeWeight, 20, \
duke@435	353	"Percentage (0-100) used to weight the current sample when " \
duke@435	354	"computing exponentially decaying average for " \
duke@435	355	"AdaptiveNUMAChunkSizing") \
duke@435	356	\
duke@435	357	product(intx, NUMASpaceResizeRate, 1*G, \
duke@435	358	"Do not reallocate more that this amount per collection") \
duke@435	359	\
duke@435	360	product(bool, UseAdaptiveNUMAChunkSizing, true, \
duke@435	361	"Enable adaptive chunk sizing for NUMA") \
duke@435	362	\
duke@435	363	product(bool, NUMAStats, false, \
duke@435	364	"Print NUMA stats in detailed heap information") \
duke@435	365	\
duke@435	366	product(intx, NUMAPageScanRate, 256, \
duke@435	367	"Maximum number of pages to include in the page scan procedure") \
duke@435	368	\
duke@435	369	product_pd(bool, NeedsDeoptSuspend, \
duke@435	370	"True for register window machines (sparc/ia64)") \
duke@435	371	\
duke@435	372	product(intx, UseSSE, 99, \
duke@435	373	"Highest supported SSE instructions set on x86/x64") \
duke@435	374	\
duke@435	375	product(uintx, LargePageSizeInBytes, 0, \
duke@435	376	"Large page size (0 to let VM choose the page size") \
duke@435	377	\
duke@435	378	product(uintx, LargePageHeapSizeThreshold, 128*M, \
duke@435	379	"Use large pages if max heap is at least this big") \
duke@435	380	\
duke@435	381	product(bool, ForceTimeHighResolution, false, \
duke@435	382	"Using high time resolution(For Win32 only)") \
duke@435	383	\
duke@435	384	develop(bool, TraceItables, false, \
duke@435	385	"Trace initialization and use of itables") \
duke@435	386	\
duke@435	387	develop(bool, TracePcPatching, false, \
duke@435	388	"Trace usage of frame::patch_pc") \
duke@435	389	\
duke@435	390	develop(bool, TraceJumps, false, \
duke@435	391	"Trace assembly jumps in thread ring buffer") \
duke@435	392	\
duke@435	393	develop(bool, TraceRelocator, false, \
duke@435	394	"Trace the bytecode relocator") \
duke@435	395	\
duke@435	396	develop(bool, TraceLongCompiles, false, \
duke@435	397	"Print out every time compilation is longer than " \
duke@435	398	"a given threashold") \
duke@435	399	\
duke@435	400	develop(bool, SafepointALot, false, \
duke@435	401	"Generates a lot of safepoints. Works with " \
duke@435	402	"GuaranteedSafepointInterval") \
duke@435	403	\
duke@435	404	product_pd(bool, BackgroundCompilation, \
duke@435	405	"A thread requesting compilation is not blocked during " \
duke@435	406	"compilation") \
duke@435	407	\
duke@435	408	product(bool, PrintVMQWaitTime, false, \
duke@435	409	"Prints out the waiting time in VM operation queue") \
duke@435	410	\
duke@435	411	develop(bool, BailoutToInterpreterForThrows, false, \
duke@435	412	"Compiled methods which throws/catches exceptions will be " \
duke@435	413	"deopt and intp.") \
duke@435	414	\
duke@435	415	develop(bool, NoYieldsInMicrolock, false, \
duke@435	416	"Disable yields in microlock") \
duke@435	417	\
duke@435	418	develop(bool, TraceOopMapGeneration, false, \
duke@435	419	"Shows oopmap generation") \
duke@435	420	\
duke@435	421	product(bool, MethodFlushing, true, \
duke@435	422	"Reclamation of zombie and not-entrant methods") \
duke@435	423	\
duke@435	424	develop(bool, VerifyStack, false, \
duke@435	425	"Verify stack of each thread when it is entering a runtime call") \
duke@435	426	\
duke@435	427	develop(bool, ForceUnreachable, false, \
duke@435	428	"(amd64) Make all non code cache addresses to be unreachable with rip-rel forcing use of 64bit literal fixups") \
duke@435	429	\
duke@435	430	notproduct(bool, StressDerivedPointers, false, \
duke@435	431	"Force scavenge when a derived pointers is detected on stack " \
duke@435	432	"after rtm call") \
duke@435	433	\
duke@435	434	develop(bool, TraceDerivedPointers, false, \
duke@435	435	"Trace traversal of derived pointers on stack") \
duke@435	436	\
duke@435	437	notproduct(bool, TraceCodeBlobStacks, false, \
duke@435	438	"Trace stack-walk of codeblobs") \
duke@435	439	\
duke@435	440	product(bool, PrintJNIResolving, false, \
duke@435	441	"Used to implement -v:jni") \
duke@435	442	\
duke@435	443	notproduct(bool, PrintRewrites, false, \
duke@435	444	"Print methods that are being rewritten") \
duke@435	445	\
duke@435	446	product(bool, UseInlineCaches, true, \
duke@435	447	"Use Inline Caches for virtual calls ") \
duke@435	448	\
duke@435	449	develop(bool, InlineArrayCopy, true, \
duke@435	450	"inline arraycopy native that is known to be part of " \
duke@435	451	"base library DLL") \
duke@435	452	\
duke@435	453	develop(bool, InlineObjectHash, true, \
duke@435	454	"inline Object::hashCode() native that is known to be part " \
duke@435	455	"of base library DLL") \
duke@435	456	\
duke@435	457	develop(bool, InlineObjectCopy, true, \
duke@435	458	"inline Object.clone and Arrays.copyOf[Range] intrinsics") \
duke@435	459	\
duke@435	460	develop(bool, InlineNatives, true, \
duke@435	461	"inline natives that are known to be part of base library DLL") \
duke@435	462	\
duke@435	463	develop(bool, InlineMathNatives, true, \
duke@435	464	"inline SinD, CosD, etc.") \
duke@435	465	\
duke@435	466	develop(bool, InlineClassNatives, true, \
duke@435	467	"inline Class.isInstance, etc") \
duke@435	468	\
duke@435	469	develop(bool, InlineAtomicLong, true, \
duke@435	470	"inline sun.misc.AtomicLong") \
duke@435	471	\
duke@435	472	develop(bool, InlineThreadNatives, true, \
duke@435	473	"inline Thread.currentThread, etc") \
duke@435	474	\
duke@435	475	develop(bool, InlineReflectionGetCallerClass, true, \
duke@435	476	"inline sun.reflect.Reflection.getCallerClass(), known to be part "\
duke@435	477	"of base library DLL") \
duke@435	478	\
duke@435	479	develop(bool, InlineUnsafeOps, true, \
duke@435	480	"inline memory ops (native methods) from sun.misc.Unsafe") \
duke@435	481	\
duke@435	482	develop(bool, ConvertCmpD2CmpF, true, \
duke@435	483	"Convert cmpD to cmpF when one input is constant in float range") \
duke@435	484	\
duke@435	485	develop(bool, ConvertFloat2IntClipping, true, \
duke@435	486	"Convert float2int clipping idiom to integer clipping") \
duke@435	487	\
duke@435	488	develop(bool, SpecialStringCompareTo, true, \
duke@435	489	"special version of string compareTo") \
duke@435	490	\
duke@435	491	develop(bool, SpecialStringIndexOf, true, \
duke@435	492	"special version of string indexOf") \
duke@435	493	\
cfang@1116	494	develop(bool, SpecialStringEquals, true, \
cfang@1116	495	"special version of string equals") \
cfang@1116	496	\
cfang@1116	497	develop(bool, SpecialArraysEquals, true, \
rasbold@604	498	"special version of Arrays.equals(char[],char[])") \
rasbold@604	499	\
cfang@1116	500	product(bool, UseSSE42Intrinsics, false, \
cfang@1116	501	"SSE4.2 versions of intrinsics") \
cfang@1116	502	\
duke@435	503	develop(bool, TraceCallFixup, false, \
duke@435	504	"traces all call fixups") \
duke@435	505	\
duke@435	506	develop(bool, DeoptimizeALot, false, \
duke@435	507	"deoptimize at every exit from the runtime system") \
duke@435	508	\
kvn@869	509	notproduct(ccstrlist, DeoptimizeOnlyAt, "", \
duke@435	510	"a comma separated list of bcis to deoptimize at") \
duke@435	511	\
duke@435	512	product(bool, DeoptimizeRandom, false, \
duke@435	513	"deoptimize random frames on random exit from the runtime system")\
duke@435	514	\
duke@435	515	notproduct(bool, ZombieALot, false, \
duke@435	516	"creates zombies (non-entrant) at exit from the runt. system") \
duke@435	517	\
duke@435	518	notproduct(bool, WalkStackALot, false, \
duke@435	519	"trace stack (no print) at every exit from the runtime system") \
duke@435	520	\
duke@435	521	develop(bool, Debugging, false, \
duke@435	522	"set when executing debug methods in debug.ccp " \
duke@435	523	"(to prevent triggering assertions)") \
duke@435	524	\
duke@435	525	notproduct(bool, StrictSafepointChecks, trueInDebug, \
duke@435	526	"Enable strict checks that safepoints cannot happen for threads " \
duke@435	527	"that used No_Safepoint_Verifier") \
duke@435	528	\
duke@435	529	notproduct(bool, VerifyLastFrame, false, \
duke@435	530	"Verify oops on last frame on entry to VM") \
duke@435	531	\
duke@435	532	develop(bool, TraceHandleAllocation, false, \
duke@435	533	"Prints out warnings when suspicious many handles are allocated") \
duke@435	534	\
duke@435	535	product(bool, UseCompilerSafepoints, true, \
duke@435	536	"Stop at safepoints in compiled code") \
duke@435	537	\
duke@435	538	product(bool, UseSplitVerifier, true, \
duke@435	539	"use split verifier with StackMapTable attributes") \
duke@435	540	\
duke@435	541	product(bool, FailOverToOldVerifier, true, \
duke@435	542	"fail over to old verifier when split verifier fails") \
duke@435	543	\
duke@435	544	develop(bool, ShowSafepointMsgs, false, \
duke@435	545	"Show msg. about safepoint synch.") \
duke@435	546	\
duke@435	547	product(bool, SafepointTimeout, false, \
duke@435	548	"Time out and warn or fail after SafepointTimeoutDelay " \
duke@435	549	"milliseconds if failed to reach safepoint") \
duke@435	550	\
duke@435	551	develop(bool, DieOnSafepointTimeout, false, \
duke@435	552	"Die upon failure to reach safepoint (see SafepointTimeout)") \
duke@435	553	\
duke@435	554	/* 50 retries * (5 * current_retry_count) millis = ~6.375 seconds */ \
duke@435	555	/* typically, at most a few retries are needed */ \
duke@435	556	product(intx, SuspendRetryCount, 50, \
duke@435	557	"Maximum retry count for an external suspend request") \
duke@435	558	\
duke@435	559	product(intx, SuspendRetryDelay, 5, \
duke@435	560	"Milliseconds to delay per retry (* current_retry_count)") \
duke@435	561	\
duke@435	562	product(bool, AssertOnSuspendWaitFailure, false, \
duke@435	563	"Assert/Guarantee on external suspend wait failure") \
duke@435	564	\
duke@435	565	product(bool, TraceSuspendWaitFailures, false, \
duke@435	566	"Trace external suspend wait failures") \
duke@435	567	\
duke@435	568	product(bool, MaxFDLimit, true, \
duke@435	569	"Bump the number of file descriptors to max in solaris.") \
duke@435	570	\
duke@435	571	notproduct(bool, LogEvents, trueInDebug, \
duke@435	572	"Enable Event log") \
duke@435	573	\
duke@435	574	product(bool, BytecodeVerificationRemote, true, \
duke@435	575	"Enables the Java bytecode verifier for remote classes") \
duke@435	576	\
duke@435	577	product(bool, BytecodeVerificationLocal, false, \
duke@435	578	"Enables the Java bytecode verifier for local classes") \
duke@435	579	\
duke@435	580	develop(bool, ForceFloatExceptions, trueInDebug, \
duke@435	581	"Force exceptions on FP stack under/overflow") \
duke@435	582	\
duke@435	583	develop(bool, SoftMatchFailure, trueInProduct, \
duke@435	584	"If the DFA fails to match a node, print a message and bail out") \
duke@435	585	\
duke@435	586	develop(bool, VerifyStackAtCalls, false, \
duke@435	587	"Verify that the stack pointer is unchanged after calls") \
duke@435	588	\
duke@435	589	develop(bool, TraceJavaAssertions, false, \
duke@435	590	"Trace java language assertions") \
duke@435	591	\
duke@435	592	notproduct(bool, CheckAssertionStatusDirectives, false, \
duke@435	593	"temporary - see javaClasses.cpp") \
duke@435	594	\
duke@435	595	notproduct(bool, PrintMallocFree, false, \
duke@435	596	"Trace calls to C heap malloc/free allocation") \
duke@435	597	\
duke@435	598	notproduct(bool, PrintOopAddress, false, \
duke@435	599	"Always print the location of the oop") \
duke@435	600	\
duke@435	601	notproduct(bool, VerifyCodeCacheOften, false, \
duke@435	602	"Verify compiled-code cache often") \
duke@435	603	\
duke@435	604	develop(bool, ZapDeadCompiledLocals, false, \
duke@435	605	"Zap dead locals in compiler frames") \
duke@435	606	\
duke@435	607	notproduct(bool, ZapDeadLocalsOld, false, \
duke@435	608	"Zap dead locals (old version, zaps all frames when " \
duke@435	609	"entering the VM") \
duke@435	610	\
duke@435	611	notproduct(bool, CheckOopishValues, false, \
duke@435	612	"Warn if value contains oop ( requires ZapDeadLocals)") \
duke@435	613	\
duke@435	614	develop(bool, UseMallocOnly, false, \
duke@435	615	"use only malloc/free for allocation (no resource area/arena)") \
duke@435	616	\
duke@435	617	develop(bool, PrintMalloc, false, \
duke@435	618	"print all malloc/free calls") \
duke@435	619	\
duke@435	620	develop(bool, ZapResourceArea, trueInDebug, \
duke@435	621	"Zap freed resource/arena space with 0xABABABAB") \
duke@435	622	\
duke@435	623	notproduct(bool, ZapVMHandleArea, trueInDebug, \
duke@435	624	"Zap freed VM handle space with 0xBCBCBCBC") \
duke@435	625	\
duke@435	626	develop(bool, ZapJNIHandleArea, trueInDebug, \
duke@435	627	"Zap freed JNI handle space with 0xFEFEFEFE") \
duke@435	628	\
jmasa@698	629	develop(bool, ZapUnusedHeapArea, trueInDebug, \
duke@435	630	"Zap unused heap space with 0xBAADBABE") \
duke@435	631	\
jmasa@698	632	develop(bool, TraceZapUnusedHeapArea, false, \
jmasa@698	633	"Trace zapping of unused heap space") \
jmasa@698	634	\
jmasa@698	635	develop(bool, CheckZapUnusedHeapArea, false, \
jmasa@698	636	"Check zapping of unused heap space") \
jmasa@698	637	\
jcoomes@916	638	develop(bool, ZapFillerObjects, trueInDebug, \
jcoomes@916	639	"Zap filler objects with 0xDEAFBABE") \
jcoomes@916	640	\
duke@435	641	develop(bool, PrintVMMessages, true, \
duke@435	642	"Print vm messages on console") \
duke@435	643	\
duke@435	644	product(bool, PrintGCApplicationConcurrentTime, false, \
duke@435	645	"Print the time the application has been running") \
duke@435	646	\
duke@435	647	product(bool, PrintGCApplicationStoppedTime, false, \
duke@435	648	"Print the time the application has been stopped") \
duke@435	649	\
duke@435	650	develop(bool, Verbose, false, \
duke@435	651	"Prints additional debugging information from other modes") \
duke@435	652	\
duke@435	653	develop(bool, PrintMiscellaneous, false, \
duke@435	654	"Prints uncategorized debugging information (requires +Verbose)") \
duke@435	655	\
duke@435	656	develop(bool, WizardMode, false, \
duke@435	657	"Prints much more debugging information") \
duke@435	658	\
duke@435	659	product(bool, ShowMessageBoxOnError, false, \
duke@435	660	"Keep process alive on VM fatal error") \
duke@435	661	\
duke@435	662	product_pd(bool, UseOSErrorReporting, \
duke@435	663	"Let VM fatal error propagate to the OS (ie. WER on Windows)") \
duke@435	664	\
duke@435	665	product(bool, SuppressFatalErrorMessage, false, \
duke@435	666	"Do NO Fatal Error report [Avoid deadlock]") \
duke@435	667	\
duke@435	668	product(ccstrlist, OnError, "", \
duke@435	669	"Run user-defined commands on fatal error; see VMError.cpp " \
duke@435	670	"for examples") \
duke@435	671	\
duke@435	672	product(ccstrlist, OnOutOfMemoryError, "", \
duke@435	673	"Run user-defined commands on first java.lang.OutOfMemoryError") \
duke@435	674	\
ysr@1050	675	manageable(bool, HeapDumpBeforeFullGC, false, \
ysr@1050	676	"Dump heap to file before any major stop-world GC") \
ysr@1050	677	\
ysr@1050	678	manageable(bool, HeapDumpAfterFullGC, false, \
ysr@1050	679	"Dump heap to file after any major stop-world GC") \
ysr@1050	680	\
duke@435	681	manageable(bool, HeapDumpOnOutOfMemoryError, false, \
duke@435	682	"Dump heap to file when java.lang.OutOfMemoryError is thrown") \
duke@435	683	\
duke@435	684	manageable(ccstr, HeapDumpPath, NULL, \
duke@435	685	"When HeapDumpOnOutOfMemoryError is on, the path (filename or" \
duke@435	686	"directory) of the dump file (defaults to java_pid<pid>.hprof" \
duke@435	687	"in the working directory)") \
duke@435	688	\
duke@435	689	develop(uintx, SegmentedHeapDumpThreshold, 2*G, \
duke@435	690	"Generate a segmented heap dump (JAVA PROFILE 1.0.2 format) " \
duke@435	691	"when the heap usage is larger than this") \
duke@435	692	\
duke@435	693	develop(uintx, HeapDumpSegmentSize, 1*G, \
duke@435	694	"Approximate segment size when generating a segmented heap dump") \
duke@435	695	\
duke@435	696	develop(bool, BreakAtWarning, false, \
duke@435	697	"Execute breakpoint upon encountering VM warning") \
duke@435	698	\
duke@435	699	product_pd(bool, UseVectoredExceptions, \
duke@435	700	"Temp Flag - Use Vectored Exceptions rather than SEH (Windows Only)") \
duke@435	701	\
duke@435	702	develop(bool, TraceVMOperation, false, \
duke@435	703	"Trace vm operations") \
duke@435	704	\
duke@435	705	develop(bool, UseFakeTimers, false, \
duke@435	706	"Tells whether the VM should use system time or a fake timer") \
duke@435	707	\
duke@435	708	diagnostic(bool, LogCompilation, false, \
duke@435	709	"Log compilation activity in detail to hotspot.log or LogFile") \
duke@435	710	\
duke@435	711	product(bool, PrintCompilation, false, \
duke@435	712	"Print compilations") \
duke@435	713	\
duke@435	714	diagnostic(bool, TraceNMethodInstalls, false, \
duke@435	715	"Trace nmethod intallation") \
duke@435	716	\
duke@435	717	diagnostic(bool, TraceOSRBreakpoint, false, \
duke@435	718	"Trace OSR Breakpoint ") \
duke@435	719	\
duke@435	720	diagnostic(bool, TraceCompileTriggered, false, \
duke@435	721	"Trace compile triggered") \
duke@435	722	\
duke@435	723	diagnostic(bool, TraceTriggers, false, \
duke@435	724	"Trace triggers") \
duke@435	725	\
duke@435	726	product(bool, AlwaysRestoreFPU, false, \
duke@435	727	"Restore the FPU control word after every JNI call (expensive)") \
duke@435	728	\
duke@435	729	notproduct(bool, PrintCompilation2, false, \
duke@435	730	"Print additional statistics per compilation") \
duke@435	731	\
jrose@535	732	diagnostic(bool, PrintAdapterHandlers, false, \
duke@435	733	"Print code generated for i2c/c2i adapters") \
duke@435	734	\
jrose@535	735	diagnostic(bool, PrintAssembly, false, \
jrose@535	736	"Print assembly code (using external disassembler.so)") \
jrose@535	737	\
never@805	738	diagnostic(ccstr, PrintAssemblyOptions, NULL, \
jrose@535	739	"Options string passed to disassembler.so") \
jrose@535	740	\
jrose@535	741	diagnostic(bool, PrintNMethods, false, \
duke@435	742	"Print assembly code for nmethods when generated") \
duke@435	743	\
jrose@535	744	diagnostic(bool, PrintNativeNMethods, false, \
duke@435	745	"Print assembly code for native nmethods when generated") \
duke@435	746	\
duke@435	747	develop(bool, PrintDebugInfo, false, \
duke@435	748	"Print debug information for all nmethods when generated") \
duke@435	749	\
duke@435	750	develop(bool, PrintRelocations, false, \
duke@435	751	"Print relocation information for all nmethods when generated") \
duke@435	752	\
duke@435	753	develop(bool, PrintDependencies, false, \
duke@435	754	"Print dependency information for all nmethods when generated") \
duke@435	755	\
duke@435	756	develop(bool, PrintExceptionHandlers, false, \
duke@435	757	"Print exception handler tables for all nmethods when generated") \
duke@435	758	\
duke@435	759	develop(bool, InterceptOSException, false, \
duke@435	760	"Starts debugger when an implicit OS (e.g., NULL) " \
duke@435	761	"exception happens") \
duke@435	762	\
duke@435	763	notproduct(bool, PrintCodeCache, false, \
duke@435	764	"Print the compiled_code cache when exiting") \
duke@435	765	\
duke@435	766	develop(bool, PrintCodeCache2, false, \
duke@435	767	"Print detailed info on the compiled_code cache when exiting") \
duke@435	768	\
jrose@535	769	diagnostic(bool, PrintStubCode, false, \
duke@435	770	"Print generated stub code") \
duke@435	771	\
duke@435	772	product(bool, StackTraceInThrowable, true, \
duke@435	773	"Collect backtrace in throwable when exception happens") \
duke@435	774	\
duke@435	775	product(bool, OmitStackTraceInFastThrow, true, \
duke@435	776	"Omit backtraces for some 'hot' exceptions in optimized code") \
duke@435	777	\
duke@435	778	product(bool, ProfilerPrintByteCodeStatistics, false, \
duke@435	779	"Prints byte code statictics when dumping profiler output") \
duke@435	780	\
duke@435	781	product(bool, ProfilerRecordPC, false, \
duke@435	782	"Collects tick for each 16 byte interval of compiled code") \
duke@435	783	\
duke@435	784	product(bool, ProfileVM, false, \
duke@435	785	"Profiles ticks that fall within VM (either in the VM Thread " \
duke@435	786	"or VM code called through stubs)") \
duke@435	787	\
duke@435	788	product(bool, ProfileIntervals, false, \
duke@435	789	"Prints profiles for each interval (see ProfileIntervalsTicks)") \
duke@435	790	\
duke@435	791	notproduct(bool, ProfilerCheckIntervals, false, \
duke@435	792	"Collect and print info on spacing of profiler ticks") \
duke@435	793	\
duke@435	794	develop(bool, PrintJVMWarnings, false, \
duke@435	795	"Prints warnings for unimplemented JVM functions") \
duke@435	796	\
duke@435	797	notproduct(uintx, WarnOnStalledSpinLock, 0, \
duke@435	798	"Prints warnings for stalled SpinLocks") \
duke@435	799	\
duke@435	800	develop(bool, InitializeJavaLangSystem, true, \
duke@435	801	"Initialize java.lang.System - turn off for individual " \
duke@435	802	"method debugging") \
duke@435	803	\
duke@435	804	develop(bool, InitializeJavaLangString, true, \
duke@435	805	"Initialize java.lang.String - turn off for individual " \
duke@435	806	"method debugging") \
duke@435	807	\
duke@435	808	develop(bool, InitializeJavaLangExceptionsErrors, true, \
duke@435	809	"Initialize various error and exception classes - turn off for " \
duke@435	810	"individual method debugging") \
duke@435	811	\
duke@435	812	product(bool, RegisterFinalizersAtInit, true, \
duke@435	813	"Register finalizable objects at end of Object.<init> or " \
duke@435	814	"after allocation.") \
duke@435	815	\
duke@435	816	develop(bool, RegisterReferences, true, \
duke@435	817	"Tells whether the VM should register soft/weak/final/phantom " \
duke@435	818	"references") \
duke@435	819	\
duke@435	820	develop(bool, IgnoreRewrites, false, \
duke@435	821	"Supress rewrites of bytecodes in the oopmap generator. " \
duke@435	822	"This is unsafe!") \
duke@435	823	\
duke@435	824	develop(bool, PrintCodeCacheExtension, false, \
duke@435	825	"Print extension of code cache") \
duke@435	826	\
duke@435	827	develop(bool, UsePrivilegedStack, true, \
duke@435	828	"Enable the security JVM functions") \
duke@435	829	\
duke@435	830	develop(bool, IEEEPrecision, true, \
duke@435	831	"Enables IEEE precision (for INTEL only)") \
duke@435	832	\
duke@435	833	develop(bool, ProtectionDomainVerification, true, \
duke@435	834	"Verifies protection domain before resolution in system " \
duke@435	835	"dictionary") \
duke@435	836	\
duke@435	837	product(bool, ClassUnloading, true, \
duke@435	838	"Do unloading of classes") \
duke@435	839	\
jrose@909	840	diagnostic(bool, LinkWellKnownClasses, false, \
jrose@567	841	"Resolve a well known class as soon as its name is seen") \
jrose@567	842	\
duke@435	843	develop(bool, DisableStartThread, false, \
duke@435	844	"Disable starting of additional Java threads " \
duke@435	845	"(for debugging only)") \
duke@435	846	\
duke@435	847	develop(bool, MemProfiling, false, \
duke@435	848	"Write memory usage profiling to log file") \
duke@435	849	\
duke@435	850	notproduct(bool, PrintSystemDictionaryAtExit, false, \
duke@435	851	"Prints the system dictionary at exit") \
duke@435	852	\
duke@435	853	diagnostic(bool, UnsyncloadClass, false, \
acorn@949	854	"Unstable: VM calls loadClass unsynchronized. Custom " \
acorn@949	855	"class loader must call VM synchronized for findClass " \
acorn@949	856	"and defineClass.") \
acorn@949	857	\
acorn@949	858	product(bool, AlwaysLockClassLoader, false, \
acorn@949	859	"Require the VM to acquire the class loader lock before calling " \
acorn@949	860	"loadClass() even for class loaders registering " \
acorn@949	861	"as parallel capable. Default false. ") \
acorn@949	862	\
acorn@949	863	product(bool, AllowParallelDefineClass, false, \
acorn@949	864	"Allow parallel defineClass requests for class loaders " \
acorn@949	865	"registering as parallel capable. Default false") \
acorn@949	866	\
acorn@949	867	product(bool, MustCallLoadClassInternal, false, \
acorn@949	868	"Call loadClassInternal() rather than loadClass().Default false") \
duke@435	869	\
duke@435	870	product_pd(bool, DontYieldALot, \
duke@435	871	"Throw away obvious excess yield calls (for SOLARIS only)") \
duke@435	872	\
duke@435	873	product_pd(bool, ConvertSleepToYield, \
duke@435	874	"Converts sleep(0) to thread yield " \
duke@435	875	"(may be off for SOLARIS to improve GUI)") \
duke@435	876	\
duke@435	877	product(bool, ConvertYieldToSleep, false, \
duke@435	878	"Converts yield to a sleep of MinSleepInterval to simulate Win32 "\
duke@435	879	"behavior (SOLARIS only)") \
duke@435	880	\
duke@435	881	product(bool, UseBoundThreads, true, \
duke@435	882	"Bind user level threads to kernel threads (for SOLARIS only)") \
duke@435	883	\
duke@435	884	develop(bool, UseDetachedThreads, true, \
duke@435	885	"Use detached threads that are recycled upon termination " \
duke@435	886	"(for SOLARIS only)") \
duke@435	887	\
duke@435	888	product(bool, UseLWPSynchronization, true, \
duke@435	889	"Use LWP-based instead of libthread-based synchronization " \
duke@435	890	"(SPARC only)") \
duke@435	891	\
never@805	892	product(ccstr, SyncKnobs, NULL, \
duke@435	893	"(Unstable) Various monitor synchronization tunables") \
duke@435	894	\
duke@435	895	product(intx, EmitSync, 0, \
duke@435	896	"(Unsafe,Unstable) " \
duke@435	897	" Controls emission of inline sync fast-path code") \
duke@435	898	\
duke@435	899	product(intx, AlwaysInflate, 0, "(Unstable) Force inflation") \
duke@435	900	\
duke@435	901	product(intx, Atomics, 0, \
duke@435	902	"(Unsafe,Unstable) Diagnostic - Controls emission of atomics") \
duke@435	903	\
duke@435	904	product(intx, FenceInstruction, 0, \
duke@435	905	"(Unsafe,Unstable) Experimental") \
duke@435	906	\
duke@435	907	product(intx, SyncFlags, 0, "(Unsafe,Unstable) Experimental Sync flags" ) \
duke@435	908	\
duke@435	909	product(intx, SyncVerbose, 0, "(Unstable)" ) \
duke@435	910	\
duke@435	911	product(intx, ClearFPUAtPark, 0, "(Unsafe,Unstable)" ) \
duke@435	912	\
duke@435	913	product(intx, hashCode, 0, \
duke@435	914	"(Unstable) select hashCode generation algorithm" ) \
duke@435	915	\
duke@435	916	product(intx, WorkAroundNPTLTimedWaitHang, 1, \
duke@435	917	"(Unstable, Linux-specific)" \
duke@435	918	" avoid NPTL-FUTEX hang pthread_cond_timedwait" ) \
duke@435	919	\
duke@435	920	product(bool, FilterSpuriousWakeups , true, \
duke@435	921	"Prevent spurious or premature wakeups from object.wait" \
duke@435	922	"(Solaris only)") \
duke@435	923	\
duke@435	924	product(intx, NativeMonitorTimeout, -1, "(Unstable)" ) \
duke@435	925	product(intx, NativeMonitorFlags, 0, "(Unstable)" ) \
duke@435	926	product(intx, NativeMonitorSpinLimit, 20, "(Unstable)" ) \
duke@435	927	\
duke@435	928	develop(bool, UsePthreads, false, \
duke@435	929	"Use pthread-based instead of libthread-based synchronization " \
duke@435	930	"(SPARC only)") \
duke@435	931	\
duke@435	932	product(bool, AdjustConcurrency, false, \
duke@435	933	"call thr_setconcurrency at thread create time to avoid " \
duke@435	934	"LWP starvation on MP systems (For Solaris Only)") \
duke@435	935	\
duke@435	936	develop(bool, UpdateHotSpotCompilerFileOnError, true, \
duke@435	937	"Should the system attempt to update the compiler file when " \
duke@435	938	"an error occurs?") \
duke@435	939	\
duke@435	940	product(bool, ReduceSignalUsage, false, \
duke@435	941	"Reduce the use of OS signals in Java and/or the VM") \
duke@435	942	\
duke@435	943	notproduct(bool, ValidateMarkSweep, false, \
duke@435	944	"Do extra validation during MarkSweep collection") \
duke@435	945	\
duke@435	946	notproduct(bool, RecordMarkSweepCompaction, false, \
duke@435	947	"Enable GC-to-GC recording and querying of compaction during " \
duke@435	948	"MarkSweep") \
duke@435	949	\
duke@435	950	develop_pd(bool, ShareVtableStubs, \
duke@435	951	"Share vtable stubs (smaller code but worse branch prediction") \
duke@435	952	\
duke@435	953	develop(bool, LoadLineNumberTables, true, \
duke@435	954	"Tells whether the class file parser loads line number tables") \
duke@435	955	\
duke@435	956	develop(bool, LoadLocalVariableTables, true, \
duke@435	957	"Tells whether the class file parser loads local variable tables")\
duke@435	958	\
duke@435	959	develop(bool, LoadLocalVariableTypeTables, true, \
duke@435	960	"Tells whether the class file parser loads local variable type tables")\
duke@435	961	\
duke@435	962	product(bool, AllowUserSignalHandlers, false, \
duke@435	963	"Do not complain if the application installs signal handlers " \
duke@435	964	"(Solaris & Linux only)") \
duke@435	965	\
duke@435	966	product(bool, UseSignalChaining, true, \
duke@435	967	"Use signal-chaining to invoke signal handlers installed " \
duke@435	968	"by the application (Solaris & Linux only)") \
duke@435	969	\
duke@435	970	product(bool, UseAltSigs, false, \
duke@435	971	"Use alternate signals instead of SIGUSR1 & SIGUSR2 for VM " \
duke@435	972	"internal signals. (Solaris only)") \
duke@435	973	\
duke@435	974	product(bool, UseSpinning, false, \
duke@435	975	"Use spinning in monitor inflation and before entry") \
duke@435	976	\
duke@435	977	product(bool, PreSpinYield, false, \
duke@435	978	"Yield before inner spinning loop") \
duke@435	979	\
duke@435	980	product(bool, PostSpinYield, true, \
duke@435	981	"Yield after inner spinning loop") \
duke@435	982	\
duke@435	983	product(bool, AllowJNIEnvProxy, false, \
duke@435	984	"Allow JNIEnv proxies for jdbx") \
duke@435	985	\
duke@435	986	product(bool, JNIDetachReleasesMonitors, true, \
duke@435	987	"JNI DetachCurrentThread releases monitors owned by thread") \
duke@435	988	\
duke@435	989	product(bool, RestoreMXCSROnJNICalls, false, \
duke@435	990	"Restore MXCSR when returning from JNI calls") \
duke@435	991	\
duke@435	992	product(bool, CheckJNICalls, false, \
duke@435	993	"Verify all arguments to JNI calls") \
duke@435	994	\
duke@435	995	product(bool, UseFastJNIAccessors, true, \
duke@435	996	"Use optimized versions of Get<Primitive>Field") \
duke@435	997	\
duke@435	998	product(bool, EagerXrunInit, false, \
duke@435	999	"Eagerly initialize -Xrun libraries; allows startup profiling, " \
duke@435	1000	" but not all -Xrun libraries may support the state of the VM at this time") \
duke@435	1001	\
duke@435	1002	product(bool, PreserveAllAnnotations, false, \
duke@435	1003	"Preserve RuntimeInvisibleAnnotations as well as RuntimeVisibleAnnotations") \
duke@435	1004	\
duke@435	1005	develop(uintx, PreallocatedOutOfMemoryErrorCount, 4, \
duke@435	1006	"Number of OutOfMemoryErrors preallocated with backtrace") \
duke@435	1007	\
duke@435	1008	product(bool, LazyBootClassLoader, true, \
duke@435	1009	"Enable/disable lazy opening of boot class path entries") \
duke@435	1010	\
duke@435	1011	diagnostic(bool, UseIncDec, true, \
duke@435	1012	"Use INC, DEC instructions on x86") \
duke@435	1013	\
kvn@654	1014	product(bool, UseNewLongLShift, false, \
kvn@654	1015	"Use optimized bitwise shift left") \
kvn@654	1016	\
duke@435	1017	product(bool, UseStoreImmI16, true, \
duke@435	1018	"Use store immediate 16-bits value instruction on x86") \
duke@435	1019	\
duke@435	1020	product(bool, UseAddressNop, false, \
duke@435	1021	"Use '0F 1F [addr]' NOP instructions on x86 cpus") \
duke@435	1022	\
duke@435	1023	product(bool, UseXmmLoadAndClearUpper, true, \
duke@435	1024	"Load low part of XMM register and clear upper part") \
duke@435	1025	\
duke@435	1026	product(bool, UseXmmRegToRegMoveAll, false, \
duke@435	1027	"Copy all XMM register bits when moving value between registers") \
duke@435	1028	\
kvn@506	1029	product(bool, UseXmmI2D, false, \
kvn@506	1030	"Use SSE2 CVTDQ2PD instruction to convert Integer to Double") \
kvn@506	1031	\
kvn@506	1032	product(bool, UseXmmI2F, false, \
kvn@506	1033	"Use SSE2 CVTDQ2PS instruction to convert Integer to Float") \
kvn@506	1034	\
kvn@840	1035	product(bool, UseXMMForArrayCopy, false, \
kvn@840	1036	"Use SSE2 MOVQ instruction for Arraycopy") \
kvn@840	1037	\
kvn@840	1038	product(bool, UseUnalignedLoadStores, false, \
kvn@840	1039	"Use SSE2 MOVDQU instruction for Arraycopy") \
kvn@840	1040	\
duke@435	1041	product(intx, FieldsAllocationStyle, 1, \
duke@435	1042	"0 - type based with oops first, 1 - with oops last") \
duke@435	1043	\
duke@435	1044	product(bool, CompactFields, true, \
duke@435	1045	"Allocate nonstatic fields in gaps between previous fields") \
duke@435	1046	\
duke@435	1047	notproduct(bool, PrintCompactFieldsSavings, false, \
duke@435	1048	"Print how many words were saved with CompactFields") \
duke@435	1049	\
duke@435	1050	product(bool, UseBiasedLocking, true, \
duke@435	1051	"Enable biased locking in JVM") \
duke@435	1052	\
duke@435	1053	product(intx, BiasedLockingStartupDelay, 4000, \
duke@435	1054	"Number of milliseconds to wait before enabling biased locking") \
duke@435	1055	\
duke@435	1056	diagnostic(bool, PrintBiasedLockingStatistics, false, \
duke@435	1057	"Print statistics of biased locking in JVM") \
duke@435	1058	\
duke@435	1059	product(intx, BiasedLockingBulkRebiasThreshold, 20, \
duke@435	1060	"Threshold of number of revocations per type to try to " \
duke@435	1061	"rebias all objects in the heap of that type") \
duke@435	1062	\
duke@435	1063	product(intx, BiasedLockingBulkRevokeThreshold, 40, \
duke@435	1064	"Threshold of number of revocations per type to permanently " \
duke@435	1065	"revoke biases of all objects in the heap of that type") \
duke@435	1066	\
duke@435	1067	product(intx, BiasedLockingDecayTime, 25000, \
duke@435	1068	"Decay time (in milliseconds) to re-enable bulk rebiasing of a " \
duke@435	1069	"type after previous bulk rebias") \
duke@435	1070	\
duke@435	1071	/* tracing */ \
duke@435	1072	\
duke@435	1073	notproduct(bool, TraceRuntimeCalls, false, \
duke@435	1074	"Trace run-time calls") \
duke@435	1075	\
duke@435	1076	develop(bool, TraceJNICalls, false, \
duke@435	1077	"Trace JNI calls") \
duke@435	1078	\
duke@435	1079	notproduct(bool, TraceJVMCalls, false, \
duke@435	1080	"Trace JVM calls") \
duke@435	1081	\
never@805	1082	product(ccstr, TraceJVMTI, NULL, \
duke@435	1083	"Trace flags for JVMTI functions and events") \
duke@435	1084	\
duke@435	1085	/* This option can change an EMCP method into an obsolete method. */ \
duke@435	1086	/* This can affect tests that except specific methods to be EMCP. */ \
duke@435	1087	/* This option should be used with caution. */ \
duke@435	1088	product(bool, StressLdcRewrite, false, \
duke@435	1089	"Force ldc -> ldc_w rewrite during RedefineClasses") \
duke@435	1090	\
duke@435	1091	product(intx, TraceRedefineClasses, 0, \
duke@435	1092	"Trace level for JVMTI RedefineClasses") \
duke@435	1093	\
duke@435	1094	/* change to false by default sometime after Mustang */ \
duke@435	1095	product(bool, VerifyMergedCPBytecodes, true, \
duke@435	1096	"Verify bytecodes after RedefineClasses constant pool merging") \
duke@435	1097	\
duke@435	1098	develop(bool, TraceJNIHandleAllocation, false, \
duke@435	1099	"Trace allocation/deallocation of JNI handle blocks") \
duke@435	1100	\
duke@435	1101	develop(bool, TraceThreadEvents, false, \
duke@435	1102	"Trace all thread events") \
duke@435	1103	\
duke@435	1104	develop(bool, TraceBytecodes, false, \
duke@435	1105	"Trace bytecode execution") \
duke@435	1106	\
duke@435	1107	develop(bool, TraceClassInitialization, false, \
duke@435	1108	"Trace class initialization") \
duke@435	1109	\
duke@435	1110	develop(bool, TraceExceptions, false, \
duke@435	1111	"Trace exceptions") \
duke@435	1112	\
duke@435	1113	develop(bool, TraceICs, false, \
duke@435	1114	"Trace inline cache changes") \
duke@435	1115	\
duke@435	1116	notproduct(bool, TraceInvocationCounterOverflow, false, \
duke@435	1117	"Trace method invocation counter overflow") \
duke@435	1118	\
duke@435	1119	develop(bool, TraceInlineCacheClearing, false, \
duke@435	1120	"Trace clearing of inline caches in nmethods") \
duke@435	1121	\
duke@435	1122	develop(bool, TraceDependencies, false, \
duke@435	1123	"Trace dependencies") \
duke@435	1124	\
duke@435	1125	develop(bool, VerifyDependencies, trueInDebug, \
duke@435	1126	"Exercise and verify the compilation dependency mechanism") \
duke@435	1127	\
duke@435	1128	develop(bool, TraceNewOopMapGeneration, false, \
duke@435	1129	"Trace OopMapGeneration") \
duke@435	1130	\
duke@435	1131	develop(bool, TraceNewOopMapGenerationDetailed, false, \
duke@435	1132	"Trace OopMapGeneration: print detailed cell states") \
duke@435	1133	\
duke@435	1134	develop(bool, TimeOopMap, false, \
duke@435	1135	"Time calls to GenerateOopMap::compute_map() in sum") \
duke@435	1136	\
duke@435	1137	develop(bool, TimeOopMap2, false, \
duke@435	1138	"Time calls to GenerateOopMap::compute_map() individually") \
duke@435	1139	\
duke@435	1140	develop(bool, TraceMonitorMismatch, false, \
duke@435	1141	"Trace monitor matching failures during OopMapGeneration") \
duke@435	1142	\
duke@435	1143	develop(bool, TraceOopMapRewrites, false, \
duke@435	1144	"Trace rewritting of method oops during oop map generation") \
duke@435	1145	\
duke@435	1146	develop(bool, TraceSafepoint, false, \
duke@435	1147	"Trace safepoint operations") \
duke@435	1148	\
duke@435	1149	develop(bool, TraceICBuffer, false, \
duke@435	1150	"Trace usage of IC buffer") \
duke@435	1151	\
duke@435	1152	develop(bool, TraceCompiledIC, false, \
duke@435	1153	"Trace changes of compiled IC") \
duke@435	1154	\
duke@435	1155	notproduct(bool, TraceZapDeadLocals, false, \
duke@435	1156	"Trace zapping dead locals") \
duke@435	1157	\
duke@435	1158	develop(bool, TraceStartupTime, false, \
duke@435	1159	"Trace setup time") \
duke@435	1160	\
duke@435	1161	develop(bool, TraceHPI, false, \
duke@435	1162	"Trace Host Porting Interface (HPI)") \
duke@435	1163	\
duke@435	1164	product(ccstr, HPILibPath, NULL, \
duke@435	1165	"Specify alternate path to HPI library") \
duke@435	1166	\
duke@435	1167	develop(bool, TraceProtectionDomainVerification, false, \
duke@435	1168	"Trace protection domain verifcation") \
duke@435	1169	\
duke@435	1170	develop(bool, TraceClearedExceptions, false, \
duke@435	1171	"Prints when an exception is forcibly cleared") \
duke@435	1172	\
duke@435	1173	product(bool, TraceClassResolution, false, \
duke@435	1174	"Trace all constant pool resolutions (for debugging)") \
duke@435	1175	\
duke@435	1176	product(bool, TraceBiasedLocking, false, \
duke@435	1177	"Trace biased locking in JVM") \
duke@435	1178	\
duke@435	1179	product(bool, TraceMonitorInflation, false, \
duke@435	1180	"Trace monitor inflation in JVM") \
duke@435	1181	\
duke@435	1182	/* assembler */ \
duke@435	1183	product(bool, Use486InstrsOnly, false, \
duke@435	1184	"Use 80486 Compliant instruction subset") \
duke@435	1185	\
duke@435	1186	/* gc */ \
duke@435	1187	\
duke@435	1188	product(bool, UseSerialGC, false, \
ysr@777	1189	"Use the serial garbage collector") \
ysr@777	1190	\
ysr@785	1191	experimental(bool, UseG1GC, false, \
ysr@777	1192	"Use the Garbage-First garbage collector") \
duke@435	1193	\
duke@435	1194	product(bool, UseParallelGC, false, \
duke@435	1195	"Use the Parallel Scavenge garbage collector") \
duke@435	1196	\
duke@435	1197	product(bool, UseParallelOldGC, false, \
duke@435	1198	"Use the Parallel Old garbage collector") \
duke@435	1199	\
duke@435	1200	product(bool, UseParallelOldGCCompacting, true, \
duke@435	1201	"In the Parallel Old garbage collector use parallel compaction") \
duke@435	1202	\
duke@435	1203	product(bool, UseParallelDensePrefixUpdate, true, \
duke@435	1204	"In the Parallel Old garbage collector use parallel dense" \
duke@435	1205	" prefix update") \
duke@435	1206	\
duke@435	1207	product(uintx, HeapMaximumCompactionInterval, 20, \
duke@435	1208	"How often should we maximally compact the heap (not allowing " \
duke@435	1209	"any dead space)") \
duke@435	1210	\
duke@435	1211	product(uintx, HeapFirstMaximumCompactionCount, 3, \
duke@435	1212	"The collection count for the first maximum compaction") \
duke@435	1213	\
duke@435	1214	product(bool, UseMaximumCompactionOnSystemGC, true, \
duke@435	1215	"In the Parallel Old garbage collector maximum compaction for " \
duke@435	1216	"a system GC") \
duke@435	1217	\
duke@435	1218	product(uintx, ParallelOldDeadWoodLimiterMean, 50, \
duke@435	1219	"The mean used by the par compact dead wood" \
duke@435	1220	"limiter (a number between 0-100).") \
duke@435	1221	\
duke@435	1222	product(uintx, ParallelOldDeadWoodLimiterStdDev, 80, \
duke@435	1223	"The standard deviation used by the par compact dead wood" \
duke@435	1224	"limiter (a number between 0-100).") \
duke@435	1225	\
duke@435	1226	product(bool, UseParallelOldGCDensePrefix, true, \
duke@435	1227	"Use a dense prefix with the Parallel Old garbage collector") \
duke@435	1228	\
duke@435	1229	product(uintx, ParallelGCThreads, 0, \
duke@435	1230	"Number of parallel threads parallel gc will use") \
duke@435	1231	\
duke@435	1232	product(uintx, ParallelCMSThreads, 0, \
duke@435	1233	"Max number of threads CMS will use for concurrent work") \
duke@435	1234	\
jcoomes@918	1235	develop(bool, ParallelOldGCSplitALot, false, \
jcoomes@918	1236	"Provoke splitting (copying data from a young gen space to" \
jcoomes@918	1237	"multiple destination spaces)") \
jcoomes@918	1238	\
jcoomes@918	1239	develop(uintx, ParallelOldGCSplitInterval, 3, \
jcoomes@918	1240	"How often to provoke splitting a young gen space") \
duke@435	1241	\
jcoomes@810	1242	develop(bool, TraceRegionTasksQueuing, false, \
jcoomes@810	1243	"Trace the queuing of the region tasks") \
duke@435	1244	\
ysr@777	1245	product(uintx, ParallelMarkingThreads, 0, \
ysr@777	1246	"Number of marking threads concurrent gc will use") \
ysr@777	1247	\
duke@435	1248	product(uintx, YoungPLABSize, 4096, \
duke@435	1249	"Size of young gen promotion labs (in HeapWords)") \
duke@435	1250	\
duke@435	1251	product(uintx, OldPLABSize, 1024, \
duke@435	1252	"Size of old gen promotion labs (in HeapWords)") \
duke@435	1253	\
duke@435	1254	product(uintx, GCTaskTimeStampEntries, 200, \
duke@435	1255	"Number of time stamp entries per gc worker thread") \
duke@435	1256	\
duke@435	1257	product(bool, AlwaysTenure, false, \
duke@435	1258	"Always tenure objects in eden. (ParallelGC only)") \
duke@435	1259	\
duke@435	1260	product(bool, NeverTenure, false, \
duke@435	1261	"Never tenure objects in eden, May tenure on overflow" \
duke@435	1262	" (ParallelGC only)") \
duke@435	1263	\
duke@435	1264	product(bool, ScavengeBeforeFullGC, true, \
duke@435	1265	"Scavenge youngest generation before each full GC," \
duke@435	1266	" used with UseParallelGC") \
duke@435	1267	\
duke@435	1268	develop(bool, ScavengeWithObjectsInToSpace, false, \
duke@435	1269	"Allow scavenges to occur when to_space contains objects.") \
duke@435	1270	\
duke@435	1271	product(bool, UseConcMarkSweepGC, false, \
duke@435	1272	"Use Concurrent Mark-Sweep GC in the old generation") \
duke@435	1273	\
duke@435	1274	product(bool, ExplicitGCInvokesConcurrent, false, \
duke@435	1275	"A System.gc() request invokes a concurrent collection;" \
duke@435	1276	" (effective only when UseConcMarkSweepGC)") \
duke@435	1277	\
duke@435	1278	product(bool, ExplicitGCInvokesConcurrentAndUnloadsClasses, false, \
duke@435	1279	"A System.gc() request invokes a concurrent collection and" \
duke@435	1280	" also unloads classes during such a concurrent gc cycle " \
duke@435	1281	" (effective only when UseConcMarkSweepGC)") \
duke@435	1282	\
duke@435	1283	develop(bool, UseCMSAdaptiveFreeLists, true, \
duke@435	1284	"Use Adaptive Free Lists in the CMS generation") \
duke@435	1285	\
duke@435	1286	develop(bool, UseAsyncConcMarkSweepGC, true, \
duke@435	1287	"Use Asynchronous Concurrent Mark-Sweep GC in the old generation")\
duke@435	1288	\
duke@435	1289	develop(bool, RotateCMSCollectionTypes, false, \
duke@435	1290	"Rotate the CMS collections among concurrent and STW") \
duke@435	1291	\
duke@435	1292	product(bool, UseCMSBestFit, true, \
duke@435	1293	"Use CMS best fit allocation strategy") \
duke@435	1294	\
duke@435	1295	product(bool, UseCMSCollectionPassing, true, \
duke@435	1296	"Use passing of collection from background to foreground") \
duke@435	1297	\
duke@435	1298	product(bool, UseParNewGC, false, \
duke@435	1299	"Use parallel threads in the new generation.") \
duke@435	1300	\
duke@435	1301	product(bool, ParallelGCVerbose, false, \
duke@435	1302	"Verbose output for parallel GC.") \
duke@435	1303	\
duke@435	1304	product(intx, ParallelGCBufferWastePct, 10, \
duke@435	1305	"wasted fraction of parallel allocation buffer.") \
duke@435	1306	\
duke@435	1307	product(bool, ParallelGCRetainPLAB, true, \
duke@435	1308	"Retain parallel allocation buffers across scavenges.") \
duke@435	1309	\
duke@435	1310	product(intx, TargetPLABWastePct, 10, \
duke@435	1311	"target wasted space in last buffer as pct of overall allocation")\
duke@435	1312	\
duke@435	1313	product(uintx, PLABWeight, 75, \
duke@435	1314	"Percentage (0-100) used to weight the current sample when" \
duke@435	1315	"computing exponentially decaying average for ResizePLAB.") \
duke@435	1316	\
duke@435	1317	product(bool, ResizePLAB, true, \
duke@435	1318	"Dynamically resize (survivor space) promotion labs") \
duke@435	1319	\
duke@435	1320	product(bool, PrintPLAB, false, \
duke@435	1321	"Print (survivor space) promotion labs sizing decisions") \
duke@435	1322	\
duke@435	1323	product(intx, ParGCArrayScanChunk, 50, \
duke@435	1324	"Scan a subset and push remainder, if array is bigger than this") \
duke@435	1325	\
ysr@1130	1326	product(bool, ParGCUseLocalOverflow, false, \
ysr@1130	1327	"Instead of a global overflow list, use local overflow stacks") \
ysr@1130	1328	\
ysr@1114	1329	product(bool, ParGCTrimOverflow, true, \
ysr@1130	1330	"Eagerly trim the local overflow lists (when ParGCUseLocalOverflow") \
ysr@1114	1331	\
ysr@969	1332	notproduct(bool, ParGCWorkQueueOverflowALot, false, \
ysr@969	1333	"Whether we should simulate work queue overflow in ParNew") \
ysr@969	1334	\
ysr@969	1335	notproduct(uintx, ParGCWorkQueueOverflowInterval, 1000, \
ysr@969	1336	"An `interval' counter that determines how frequently" \
ysr@969	1337	" we simulate overflow; a smaller number increases frequency") \
ysr@969	1338	\
ysr@969	1339	product(uintx, ParGCDesiredObjsFromOverflowList, 20, \
duke@435	1340	"The desired number of objects to claim from the overflow list") \
duke@435	1341	\
duke@435	1342	product(uintx, CMSParPromoteBlocksToClaim, 50, \
duke@435	1343	"Number of blocks to attempt to claim when refilling CMS LAB for "\
duke@435	1344	"parallel GC.") \
duke@435	1345	\
duke@435	1346	product(bool, AlwaysPreTouch, false, \
duke@435	1347	"It forces all freshly committed pages to be pre-touched.") \
duke@435	1348	\
duke@435	1349	product(bool, CMSUseOldDefaults, false, \
duke@435	1350	"A flag temporarily introduced to allow reverting to some older" \
duke@435	1351	"default settings; older as of 6.0 ") \
duke@435	1352	\
duke@435	1353	product(intx, CMSYoungGenPerWorker, 16*M, \
duke@435	1354	"The amount of young gen chosen by default per GC worker " \
duke@435	1355	"thread available ") \
duke@435	1356	\
ysr@777	1357	product(bool, GCOverheadReporting, false, \
ysr@777	1358	"Enables the GC overhead reporting facility") \
ysr@777	1359	\
ysr@777	1360	product(intx, GCOverheadReportingPeriodMS, 100, \
ysr@777	1361	"Reporting period for conc GC overhead reporting, in ms ") \
ysr@777	1362	\
duke@435	1363	product(bool, CMSIncrementalMode, false, \
duke@435	1364	"Whether CMS GC should operate in \"incremental\" mode") \
duke@435	1365	\
duke@435	1366	product(uintx, CMSIncrementalDutyCycle, 10, \
duke@435	1367	"CMS incremental mode duty cycle (a percentage, 0-100). If" \
duke@435	1368	"CMSIncrementalPacing is enabled, then this is just the initial" \
duke@435	1369	"value") \
duke@435	1370	\
duke@435	1371	product(bool, CMSIncrementalPacing, true, \
duke@435	1372	"Whether the CMS incremental mode duty cycle should be " \
duke@435	1373	"automatically adjusted") \
duke@435	1374	\
duke@435	1375	product(uintx, CMSIncrementalDutyCycleMin, 0, \
duke@435	1376	"Lower bound on the duty cycle when CMSIncrementalPacing is" \
duke@435	1377	"enabled (a percentage, 0-100).") \
duke@435	1378	\
duke@435	1379	product(uintx, CMSIncrementalSafetyFactor, 10, \
duke@435	1380	"Percentage (0-100) used to add conservatism when computing the" \
duke@435	1381	"duty cycle.") \
duke@435	1382	\
duke@435	1383	product(uintx, CMSIncrementalOffset, 0, \
duke@435	1384	"Percentage (0-100) by which the CMS incremental mode duty cycle" \
duke@435	1385	"is shifted to the right within the period between young GCs") \
duke@435	1386	\
duke@435	1387	product(uintx, CMSExpAvgFactor, 25, \
duke@435	1388	"Percentage (0-100) used to weight the current sample when" \
duke@435	1389	"computing exponential averages for CMS statistics.") \
duke@435	1390	\
duke@435	1391	product(uintx, CMS_FLSWeight, 50, \
duke@435	1392	"Percentage (0-100) used to weight the current sample when" \
duke@435	1393	"computing exponentially decating averages for CMS FLS statistics.") \
duke@435	1394	\
duke@435	1395	product(uintx, CMS_FLSPadding, 2, \
duke@435	1396	"The multiple of deviation from mean to use for buffering" \
duke@435	1397	"against volatility in free list demand.") \
duke@435	1398	\
duke@435	1399	product(uintx, FLSCoalescePolicy, 2, \
duke@435	1400	"CMS: Aggression level for coalescing, increasing from 0 to 4") \
duke@435	1401	\
duke@435	1402	product(uintx, CMS_SweepWeight, 50, \
duke@435	1403	"Percentage (0-100) used to weight the current sample when" \
duke@435	1404	"computing exponentially decaying average for inter-sweep duration.") \
duke@435	1405	\
duke@435	1406	product(uintx, CMS_SweepPadding, 2, \
duke@435	1407	"The multiple of deviation from mean to use for buffering" \
duke@435	1408	"against volatility in inter-sweep duration.") \
duke@435	1409	\
duke@435	1410	product(uintx, CMS_SweepTimerThresholdMillis, 10, \
duke@435	1411	"Skip block flux-rate sampling for an epoch unless inter-sweep " \
duke@435	1412	" duration exceeds this threhold in milliseconds") \
duke@435	1413	\
duke@435	1414	develop(bool, CMSTraceIncrementalMode, false, \
duke@435	1415	"Trace CMS incremental mode") \
duke@435	1416	\
duke@435	1417	develop(bool, CMSTraceIncrementalPacing, false, \
duke@435	1418	"Trace CMS incremental mode pacing computation") \
duke@435	1419	\
duke@435	1420	develop(bool, CMSTraceThreadState, false, \
duke@435	1421	"Trace the CMS thread state (enable the trace_state() method)") \
duke@435	1422	\
duke@435	1423	product(bool, CMSClassUnloadingEnabled, false, \
duke@435	1424	"Whether class unloading enabled when using CMS GC") \
duke@435	1425	\
ysr@529	1426	product(uintx, CMSClassUnloadingMaxInterval, 0, \
ysr@529	1427	"When CMS class unloading is enabled, the maximum CMS cycle count"\
ysr@529	1428	" for which classes may not be unloaded") \
ysr@529	1429	\
duke@435	1430	product(bool, CMSCompactWhenClearAllSoftRefs, true, \
duke@435	1431	"Compact when asked to collect CMS gen with clear_all_soft_refs") \
duke@435	1432	\
duke@435	1433	product(bool, UseCMSCompactAtFullCollection, true, \
duke@435	1434	"Use mark sweep compact at full collections") \
duke@435	1435	\
duke@435	1436	product(uintx, CMSFullGCsBeforeCompaction, 0, \
duke@435	1437	"Number of CMS full collection done before compaction if > 0") \
duke@435	1438	\
duke@435	1439	develop(intx, CMSDictionaryChoice, 0, \
duke@435	1440	"Use BinaryTreeDictionary as default in the CMS generation") \
duke@435	1441	\
duke@435	1442	product(uintx, CMSIndexedFreeListReplenish, 4, \
duke@435	1443	"Replenish and indexed free list with this number of chunks") \
duke@435	1444	\
duke@435	1445	product(bool, CMSLoopWarn, false, \
duke@435	1446	"Warn in case of excessive CMS looping") \
duke@435	1447	\
duke@435	1448	develop(bool, CMSOverflowEarlyRestoration, false, \
duke@435	1449	"Whether preserved marks should be restored early") \
duke@435	1450	\
ysr@976	1451	product(uintx, CMSMarkStackSize, NOT_LP64(32*K) LP64_ONLY(4*M), \
duke@435	1452	"Size of CMS marking stack") \
duke@435	1453	\
ysr@976	1454	product(uintx, CMSMarkStackSizeMax, NOT_LP64(4*M) LP64_ONLY(512*M), \
duke@435	1455	"Max size of CMS marking stack") \
duke@435	1456	\
duke@435	1457	notproduct(bool, CMSMarkStackOverflowALot, false, \
duke@435	1458	"Whether we should simulate frequent marking stack / work queue" \
duke@435	1459	" overflow") \
duke@435	1460	\
ysr@969	1461	notproduct(uintx, CMSMarkStackOverflowInterval, 1000, \
ysr@969	1462	"An `interval' counter that determines how frequently" \
duke@435	1463	" we simulate overflow; a smaller number increases frequency") \
duke@435	1464	\
duke@435	1465	product(uintx, CMSMaxAbortablePrecleanLoops, 0, \
duke@435	1466	"(Temporary, subject to experimentation)" \
duke@435	1467	"Maximum number of abortable preclean iterations, if > 0") \
duke@435	1468	\
duke@435	1469	product(intx, CMSMaxAbortablePrecleanTime, 5000, \
duke@435	1470	"(Temporary, subject to experimentation)" \
duke@435	1471	"Maximum time in abortable preclean in ms") \
duke@435	1472	\
duke@435	1473	product(uintx, CMSAbortablePrecleanMinWorkPerIteration, 100, \
duke@435	1474	"(Temporary, subject to experimentation)" \
duke@435	1475	"Nominal minimum work per abortable preclean iteration") \
duke@435	1476	\
duke@435	1477	product(intx, CMSAbortablePrecleanWaitMillis, 100, \
duke@435	1478	"(Temporary, subject to experimentation)" \
duke@435	1479	" Time that we sleep between iterations when not given" \
duke@435	1480	" enough work per iteration") \
duke@435	1481	\
duke@435	1482	product(uintx, CMSRescanMultiple, 32, \
duke@435	1483	"Size (in cards) of CMS parallel rescan task") \
duke@435	1484	\
duke@435	1485	product(uintx, CMSConcMarkMultiple, 32, \
duke@435	1486	"Size (in cards) of CMS concurrent MT marking task") \
duke@435	1487	\
duke@435	1488	product(uintx, CMSRevisitStackSize, 1*M, \
duke@435	1489	"Size of CMS KlassKlass revisit stack") \
duke@435	1490	\
duke@435	1491	product(bool, CMSAbortSemantics, false, \
duke@435	1492	"Whether abort-on-overflow semantics is implemented") \
duke@435	1493	\
duke@435	1494	product(bool, CMSParallelRemarkEnabled, true, \
duke@435	1495	"Whether parallel remark enabled (only if ParNewGC)") \
duke@435	1496	\
duke@435	1497	product(bool, CMSParallelSurvivorRemarkEnabled, true, \
duke@435	1498	"Whether parallel remark of survivor space" \
duke@435	1499	" enabled (effective only if CMSParallelRemarkEnabled)") \
duke@435	1500	\
duke@435	1501	product(bool, CMSPLABRecordAlways, true, \
duke@435	1502	"Whether to always record survivor space PLAB bdries" \
duke@435	1503	" (effective only if CMSParallelSurvivorRemarkEnabled)") \
duke@435	1504	\
duke@435	1505	product(bool, CMSConcurrentMTEnabled, true, \
duke@435	1506	"Whether multi-threaded concurrent work enabled (if ParNewGC)") \
duke@435	1507	\
duke@435	1508	product(bool, CMSPermGenPrecleaningEnabled, true, \
duke@435	1509	"Whether concurrent precleaning enabled in perm gen" \
duke@435	1510	" (effective only when CMSPrecleaningEnabled is true)") \
duke@435	1511	\
duke@435	1512	product(bool, CMSPrecleaningEnabled, true, \
duke@435	1513	"Whether concurrent precleaning enabled") \
duke@435	1514	\
duke@435	1515	product(uintx, CMSPrecleanIter, 3, \
duke@435	1516	"Maximum number of precleaning iteration passes") \
duke@435	1517	\
duke@435	1518	product(uintx, CMSPrecleanNumerator, 2, \
duke@435	1519	"CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \
duke@435	1520	" ratio") \
duke@435	1521	\
duke@435	1522	product(uintx, CMSPrecleanDenominator, 3, \
duke@435	1523	"CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \
duke@435	1524	" ratio") \
duke@435	1525	\
ysr@887	1526	product(bool, CMSPrecleanRefLists1, true, \
duke@435	1527	"Preclean ref lists during (initial) preclean phase") \
duke@435	1528	\
duke@435	1529	product(bool, CMSPrecleanRefLists2, false, \
duke@435	1530	"Preclean ref lists during abortable preclean phase") \
duke@435	1531	\
duke@435	1532	product(bool, CMSPrecleanSurvivors1, false, \
duke@435	1533	"Preclean survivors during (initial) preclean phase") \
duke@435	1534	\
duke@435	1535	product(bool, CMSPrecleanSurvivors2, true, \
duke@435	1536	"Preclean survivors during abortable preclean phase") \
duke@435	1537	\
duke@435	1538	product(uintx, CMSPrecleanThreshold, 1000, \
duke@435	1539	"Don't re-iterate if #dirty cards less than this") \
duke@435	1540	\
duke@435	1541	product(bool, CMSCleanOnEnter, true, \
duke@435	1542	"Clean-on-enter optimization for reducing number of dirty cards") \
duke@435	1543	\
duke@435	1544	product(uintx, CMSRemarkVerifyVariant, 1, \
duke@435	1545	"Choose variant (1,2) of verification following remark") \
duke@435	1546	\
duke@435	1547	product(uintx, CMSScheduleRemarkEdenSizeThreshold, 2*M, \
duke@435	1548	"If Eden used is below this value, don't try to schedule remark") \
duke@435	1549	\
duke@435	1550	product(uintx, CMSScheduleRemarkEdenPenetration, 50, \
duke@435	1551	"The Eden occupancy % at which to try and schedule remark pause") \
duke@435	1552	\
duke@435	1553	product(uintx, CMSScheduleRemarkSamplingRatio, 5, \
duke@435	1554	"Start sampling Eden top at least before yg occupancy reaches" \
duke@435	1555	" 1/<ratio> of the size at which we plan to schedule remark") \
duke@435	1556	\
duke@435	1557	product(uintx, CMSSamplingGrain, 16*K, \
duke@435	1558	"The minimum distance between eden samples for CMS (see above)") \
duke@435	1559	\
duke@435	1560	product(bool, CMSScavengeBeforeRemark, false, \
duke@435	1561	"Attempt scavenge before the CMS remark step") \
duke@435	1562	\
duke@435	1563	develop(bool, CMSTraceSweeper, false, \
duke@435	1564	"Trace some actions of the CMS sweeper") \
duke@435	1565	\
duke@435	1566	product(uintx, CMSWorkQueueDrainThreshold, 10, \
duke@435	1567	"Don't drain below this size per parallel worker/thief") \
duke@435	1568	\
duke@435	1569	product(intx, CMSWaitDuration, 2000, \
duke@435	1570	"Time in milliseconds that CMS thread waits for young GC") \
duke@435	1571	\
duke@435	1572	product(bool, CMSYield, true, \
duke@435	1573	"Yield between steps of concurrent mark & sweep") \
duke@435	1574	\
duke@435	1575	product(uintx, CMSBitMapYieldQuantum, 10*M, \
duke@435	1576	"Bitmap operations should process at most this many bits" \
duke@435	1577	"between yields") \
duke@435	1578	\
duke@435	1579	diagnostic(bool, FLSVerifyAllHeapReferences, false, \
duke@435	1580	"Verify that all refs across the FLS boundary " \
duke@435	1581	" are to valid objects") \
duke@435	1582	\
duke@435	1583	diagnostic(bool, FLSVerifyLists, false, \
duke@435	1584	"Do lots of (expensive) FreeListSpace verification") \
duke@435	1585	\
duke@435	1586	diagnostic(bool, FLSVerifyIndexTable, false, \
duke@435	1587	"Do lots of (expensive) FLS index table verification") \
duke@435	1588	\
duke@435	1589	develop(bool, FLSVerifyDictionary, false, \
duke@435	1590	"Do lots of (expensive) FLS dictionary verification") \
duke@435	1591	\
duke@435	1592	develop(bool, VerifyBlockOffsetArray, false, \
duke@435	1593	"Do (expensive!) block offset array verification") \
duke@435	1594	\
duke@435	1595	product(bool, BlockOffsetArrayUseUnallocatedBlock, trueInDebug, \
duke@435	1596	"Maintain _unallocated_block in BlockOffsetArray" \
duke@435	1597	" (currently applicable only to CMS collector)") \
duke@435	1598	\
duke@435	1599	develop(bool, TraceCMSState, false, \
duke@435	1600	"Trace the state of the CMS collection") \
duke@435	1601	\
duke@435	1602	product(intx, RefDiscoveryPolicy, 0, \
duke@435	1603	"Whether reference-based(0) or referent-based(1)") \
duke@435	1604	\
duke@435	1605	product(bool, ParallelRefProcEnabled, false, \
duke@435	1606	"Enable parallel reference processing whenever possible") \
duke@435	1607	\
duke@435	1608	product(bool, ParallelRefProcBalancingEnabled, true, \
duke@435	1609	"Enable balancing of reference processing queues") \
duke@435	1610	\
duke@435	1611	product(intx, CMSTriggerRatio, 80, \
duke@435	1612	"Percentage of MinHeapFreeRatio in CMS generation that is " \
duke@435	1613	" allocated before a CMS collection cycle commences") \
duke@435	1614	\
ysr@529	1615	product(intx, CMSTriggerPermRatio, 80, \
ysr@529	1616	"Percentage of MinHeapFreeRatio in the CMS perm generation that" \
ysr@529	1617	" is allocated before a CMS collection cycle commences, that " \
ysr@529	1618	" also collects the perm generation") \
ysr@529	1619	\
ysr@529	1620	product(uintx, CMSBootstrapOccupancy, 50, \
duke@435	1621	"Percentage CMS generation occupancy at which to " \
duke@435	1622	" initiate CMS collection for bootstrapping collection stats") \
duke@435	1623	\
duke@435	1624	product(intx, CMSInitiatingOccupancyFraction, -1, \
duke@435	1625	"Percentage CMS generation occupancy to start a CMS collection " \
ysr@529	1626	" cycle (A negative value means that CMSTriggerRatio is used)") \
ysr@529	1627	\
ysr@529	1628	product(intx, CMSInitiatingPermOccupancyFraction, -1, \
ysr@529	1629	"Percentage CMS perm generation occupancy to start a CMScollection"\
ysr@529	1630	" cycle (A negative value means that CMSTriggerPermRatio is used)")\
duke@435	1631	\
duke@435	1632	product(bool, UseCMSInitiatingOccupancyOnly, false, \
duke@435	1633	"Only use occupancy as a crierion for starting a CMS collection") \
duke@435	1634	\
ysr@529	1635	product(intx, CMSIsTooFullPercentage, 98, \
ysr@529	1636	"An absolute ceiling above which CMS will always consider the" \
ysr@529	1637	" perm gen ripe for collection") \
ysr@529	1638	\
duke@435	1639	develop(bool, CMSTestInFreeList, false, \
duke@435	1640	"Check if the coalesced range is already in the " \
duke@435	1641	"free lists as claimed.") \
duke@435	1642	\
duke@435	1643	notproduct(bool, CMSVerifyReturnedBytes, false, \
duke@435	1644	"Check that all the garbage collected was returned to the " \
duke@435	1645	"free lists.") \
duke@435	1646	\
duke@435	1647	notproduct(bool, ScavengeALot, false, \
duke@435	1648	"Force scavenge at every Nth exit from the runtime system " \
duke@435	1649	"(N=ScavengeALotInterval)") \
duke@435	1650	\
duke@435	1651	develop(bool, FullGCALot, false, \
duke@435	1652	"Force full gc at every Nth exit from the runtime system " \
duke@435	1653	"(N=FullGCALotInterval)") \
duke@435	1654	\
duke@435	1655	notproduct(bool, GCALotAtAllSafepoints, false, \
duke@435	1656	"Enforce ScavengeALot/GCALot at all potential safepoints") \
duke@435	1657	\
duke@435	1658	product(bool, HandlePromotionFailure, true, \
duke@435	1659	"The youngest generation collection does not require" \
duke@435	1660	" a guarantee of full promotion of all live objects.") \
duke@435	1661	\
duke@435	1662	notproduct(bool, PromotionFailureALot, false, \
duke@435	1663	"Use promotion failure handling on every youngest generation " \
duke@435	1664	"collection") \
duke@435	1665	\
duke@435	1666	develop(uintx, PromotionFailureALotCount, 1000, \
duke@435	1667	"Number of promotion failures occurring at ParGCAllocBuffer" \
duke@435	1668	"refill attempts (ParNew) or promotion attempts " \
duke@435	1669	"(other young collectors) ") \
duke@435	1670	\
duke@435	1671	develop(uintx, PromotionFailureALotInterval, 5, \
duke@435	1672	"Total collections between promotion failures alot") \
duke@435	1673	\
duke@435	1674	develop(intx, WorkStealingSleepMillis, 1, \
duke@435	1675	"Sleep time when sleep is used for yields") \
duke@435	1676	\
duke@435	1677	develop(uintx, WorkStealingYieldsBeforeSleep, 1000, \
duke@435	1678	"Number of yields before a sleep is done during workstealing") \
duke@435	1679	\
jmasa@981	1680	develop(uintx, WorkStealingHardSpins, 4096, \
jmasa@981	1681	"Number of iterations in a spin loop between checks on " \
jmasa@981	1682	"time out of hard spin") \
jmasa@981	1683	\
jmasa@981	1684	develop(uintx, WorkStealingSpinToYieldRatio, 10, \
jmasa@981	1685	"Ratio of hard spins to calls to yield") \
jmasa@981	1686	\
ysr@969	1687	product(uintx, PreserveMarkStackSize, 1024, \
duke@435	1688	"Size for stack used in promotion failure handling") \
duke@435	1689	\
duke@435	1690	product_pd(bool, UseTLAB, "Use thread-local object allocation") \
duke@435	1691	\
duke@435	1692	product_pd(bool, ResizeTLAB, \
duke@435	1693	"Dynamically resize tlab size for threads") \
duke@435	1694	\
duke@435	1695	product(bool, ZeroTLAB, false, \
duke@435	1696	"Zero out the newly created TLAB") \
duke@435	1697	\
ysr@777	1698	product(bool, FastTLABRefill, true, \
ysr@777	1699	"Use fast TLAB refill code") \
ysr@777	1700	\
duke@435	1701	product(bool, PrintTLAB, false, \
duke@435	1702	"Print various TLAB related information") \
duke@435	1703	\
duke@435	1704	product(bool, TLABStats, true, \
duke@435	1705	"Print various TLAB related information") \
duke@435	1706	\
duke@435	1707	product_pd(bool, NeverActAsServerClassMachine, \
duke@435	1708	"Never act like a server-class machine") \
duke@435	1709	\
duke@435	1710	product(bool, AlwaysActAsServerClassMachine, false, \
duke@435	1711	"Always act like a server-class machine") \
duke@435	1712	\
duke@435	1713	product_pd(uintx, DefaultMaxRAM, \
duke@435	1714	"Maximum real memory size for setting server class heap size") \
duke@435	1715	\
duke@435	1716	product(uintx, DefaultMaxRAMFraction, 4, \
duke@435	1717	"Fraction (1/n) of real memory used for server class max heap") \
duke@435	1718	\
duke@435	1719	product(uintx, DefaultInitialRAMFraction, 64, \
duke@435	1720	"Fraction (1/n) of real memory used for server class initial heap") \
duke@435	1721	\
duke@435	1722	product(bool, UseAutoGCSelectPolicy, false, \
duke@435	1723	"Use automatic collection selection policy") \
duke@435	1724	\
duke@435	1725	product(uintx, AutoGCSelectPauseMillis, 5000, \
duke@435	1726	"Automatic GC selection pause threshhold in ms") \
duke@435	1727	\
duke@435	1728	product(bool, UseAdaptiveSizePolicy, true, \
duke@435	1729	"Use adaptive generation sizing policies") \
duke@435	1730	\
duke@435	1731	product(bool, UsePSAdaptiveSurvivorSizePolicy, true, \
duke@435	1732	"Use adaptive survivor sizing policies") \
duke@435	1733	\
duke@435	1734	product(bool, UseAdaptiveGenerationSizePolicyAtMinorCollection, true, \
duke@435	1735	"Use adaptive young-old sizing policies at minor collections") \
duke@435	1736	\
duke@435	1737	product(bool, UseAdaptiveGenerationSizePolicyAtMajorCollection, true, \
duke@435	1738	"Use adaptive young-old sizing policies at major collections") \
duke@435	1739	\
duke@435	1740	product(bool, UseAdaptiveSizePolicyWithSystemGC, false, \
duke@435	1741	"Use statistics from System.GC for adaptive size policy") \
duke@435	1742	\
duke@435	1743	product(bool, UseAdaptiveGCBoundary, false, \
duke@435	1744	"Allow young-old boundary to move") \
duke@435	1745	\
duke@435	1746	develop(bool, TraceAdaptiveGCBoundary, false, \
duke@435	1747	"Trace young-old boundary moves") \
duke@435	1748	\
duke@435	1749	develop(intx, PSAdaptiveSizePolicyResizeVirtualSpaceAlot, -1, \
duke@435	1750	"Resize the virtual spaces of the young or old generations") \
duke@435	1751	\
duke@435	1752	product(uintx, AdaptiveSizeThroughPutPolicy, 0, \
duke@435	1753	"Policy for changeing generation size for throughput goals") \
duke@435	1754	\
duke@435	1755	product(uintx, AdaptiveSizePausePolicy, 0, \
duke@435	1756	"Policy for changing generation size for pause goals") \
duke@435	1757	\
duke@435	1758	develop(bool, PSAdjustTenuredGenForMinorPause, false, \
duke@435	1759	"Adjust tenured generation to achive a minor pause goal") \
duke@435	1760	\
duke@435	1761	develop(bool, PSAdjustYoungGenForMajorPause, false, \
duke@435	1762	"Adjust young generation to achive a major pause goal") \
duke@435	1763	\
duke@435	1764	product(uintx, AdaptiveSizePolicyInitializingSteps, 20, \
duke@435	1765	"Number of steps where heuristics is used before data is used") \
duke@435	1766	\
duke@435	1767	develop(uintx, AdaptiveSizePolicyReadyThreshold, 5, \
duke@435	1768	"Number of collections before the adaptive sizing is started") \
duke@435	1769	\
duke@435	1770	product(uintx, AdaptiveSizePolicyOutputInterval, 0, \
duke@435	1771	"Collecton interval for printing information, zero => never") \
duke@435	1772	\
duke@435	1773	product(bool, UseAdaptiveSizePolicyFootprintGoal, true, \
duke@435	1774	"Use adaptive minimum footprint as a goal") \
duke@435	1775	\
duke@435	1776	product(uintx, AdaptiveSizePolicyWeight, 10, \
duke@435	1777	"Weight given to exponential resizing, between 0 and 100") \
duke@435	1778	\
duke@435	1779	product(uintx, AdaptiveTimeWeight, 25, \
duke@435	1780	"Weight given to time in adaptive policy, between 0 and 100") \
duke@435	1781	\
duke@435	1782	product(uintx, PausePadding, 1, \
duke@435	1783	"How much buffer to keep for pause time") \
duke@435	1784	\
duke@435	1785	product(uintx, PromotedPadding, 3, \
duke@435	1786	"How much buffer to keep for promotion failure") \
duke@435	1787	\
duke@435	1788	product(uintx, SurvivorPadding, 3, \
duke@435	1789	"How much buffer to keep for survivor overflow") \
duke@435	1790	\
duke@435	1791	product(uintx, AdaptivePermSizeWeight, 20, \
duke@435	1792	"Weight for perm gen exponential resizing, between 0 and 100") \
duke@435	1793	\
duke@435	1794	product(uintx, PermGenPadding, 3, \
duke@435	1795	"How much buffer to keep for perm gen sizing") \
duke@435	1796	\
duke@435	1797	product(uintx, ThresholdTolerance, 10, \
duke@435	1798	"Allowed collection cost difference between generations") \
duke@435	1799	\
duke@435	1800	product(uintx, AdaptiveSizePolicyCollectionCostMargin, 50, \
duke@435	1801	"If collection costs are within margin, reduce both by full delta") \
duke@435	1802	\
duke@435	1803	product(uintx, YoungGenerationSizeIncrement, 20, \
duke@435	1804	"Adaptive size percentage change in young generation") \
duke@435	1805	\
duke@435	1806	product(uintx, YoungGenerationSizeSupplement, 80, \
duke@435	1807	"Supplement to YoungedGenerationSizeIncrement used at startup") \
duke@435	1808	\
duke@435	1809	product(uintx, YoungGenerationSizeSupplementDecay, 8, \
duke@435	1810	"Decay factor to YoungedGenerationSizeSupplement") \
duke@435	1811	\
duke@435	1812	product(uintx, TenuredGenerationSizeIncrement, 20, \
duke@435	1813	"Adaptive size percentage change in tenured generation") \
duke@435	1814	\
duke@435	1815	product(uintx, TenuredGenerationSizeSupplement, 80, \
duke@435	1816	"Supplement to TenuredGenerationSizeIncrement used at startup") \
duke@435	1817	\
duke@435	1818	product(uintx, TenuredGenerationSizeSupplementDecay, 2, \
duke@435	1819	"Decay factor to TenuredGenerationSizeIncrement") \
duke@435	1820	\
duke@435	1821	product(uintx, MaxGCPauseMillis, max_uintx, \
duke@435	1822	"Adaptive size policy maximum GC pause time goal in msec") \
duke@435	1823	\
duke@435	1824	product(uintx, MaxGCMinorPauseMillis, max_uintx, \
duke@435	1825	"Adaptive size policy maximum GC minor pause time goal in msec") \
duke@435	1826	\
duke@435	1827	product(uintx, GCTimeRatio, 99, \
duke@435	1828	"Adaptive size policy application time to GC time ratio") \
duke@435	1829	\
duke@435	1830	product(uintx, AdaptiveSizeDecrementScaleFactor, 4, \
duke@435	1831	"Adaptive size scale down factor for shrinking") \
duke@435	1832	\
duke@435	1833	product(bool, UseAdaptiveSizeDecayMajorGCCost, true, \
duke@435	1834	"Adaptive size decays the major cost for long major intervals") \
duke@435	1835	\
duke@435	1836	product(uintx, AdaptiveSizeMajorGCDecayTimeScale, 10, \
duke@435	1837	"Time scale over which major costs decay") \
duke@435	1838	\
duke@435	1839	product(uintx, MinSurvivorRatio, 3, \
duke@435	1840	"Minimum ratio of young generation/survivor space size") \
duke@435	1841	\
duke@435	1842	product(uintx, InitialSurvivorRatio, 8, \
duke@435	1843	"Initial ratio of eden/survivor space size") \
duke@435	1844	\
duke@435	1845	product(uintx, BaseFootPrintEstimate, 256*M, \
duke@435	1846	"Estimate of footprint other than Java Heap") \
duke@435	1847	\
duke@435	1848	product(bool, UseGCOverheadLimit, true, \
duke@435	1849	"Use policy to limit of proportion of time spent in GC " \
duke@435	1850	"before an OutOfMemory error is thrown") \
duke@435	1851	\
duke@435	1852	product(uintx, GCTimeLimit, 98, \
duke@435	1853	"Limit of proportion of time spent in GC before an OutOfMemory" \
duke@435	1854	"error is thrown (used with GCHeapFreeLimit)") \
duke@435	1855	\
duke@435	1856	product(uintx, GCHeapFreeLimit, 2, \
duke@435	1857	"Minimum percentage of free space after a full GC before an " \
duke@435	1858	"OutOfMemoryError is thrown (used with GCTimeLimit)") \
duke@435	1859	\
duke@435	1860	develop(uintx, AdaptiveSizePolicyGCTimeLimitThreshold, 5, \
duke@435	1861	"Number of consecutive collections before gc time limit fires") \
duke@435	1862	\
duke@435	1863	product(bool, PrintAdaptiveSizePolicy, false, \
duke@435	1864	"Print information about AdaptiveSizePolicy") \
duke@435	1865	\
duke@435	1866	product(intx, PrefetchCopyIntervalInBytes, -1, \
duke@435	1867	"How far ahead to prefetch destination area (<= 0 means off)") \
duke@435	1868	\
duke@435	1869	product(intx, PrefetchScanIntervalInBytes, -1, \
duke@435	1870	"How far ahead to prefetch scan area (<= 0 means off)") \
duke@435	1871	\
duke@435	1872	product(intx, PrefetchFieldsAhead, -1, \
duke@435	1873	"How many fields ahead to prefetch in oop scan (<= 0 means off)") \
duke@435	1874	\
duke@435	1875	develop(bool, UsePrefetchQueue, true, \
duke@435	1876	"Use the prefetch queue during PS promotion") \
duke@435	1877	\
duke@435	1878	diagnostic(bool, VerifyBeforeExit, trueInDebug, \
duke@435	1879	"Verify system before exiting") \
duke@435	1880	\
duke@435	1881	diagnostic(bool, VerifyBeforeGC, false, \
duke@435	1882	"Verify memory system before GC") \
duke@435	1883	\
duke@435	1884	diagnostic(bool, VerifyAfterGC, false, \
duke@435	1885	"Verify memory system after GC") \
duke@435	1886	\
duke@435	1887	diagnostic(bool, VerifyDuringGC, false, \
duke@435	1888	"Verify memory system during GC (between phases)") \
duke@435	1889	\
tonyp@825	1890	diagnostic(bool, GCParallelVerificationEnabled, true, \
tonyp@825	1891	"Enable parallel memory system verification") \
tonyp@825	1892	\
duke@435	1893	diagnostic(bool, VerifyRememberedSets, false, \
duke@435	1894	"Verify GC remembered sets") \
duke@435	1895	\
duke@435	1896	diagnostic(bool, VerifyObjectStartArray, true, \
duke@435	1897	"Verify GC object start array if verify before/after") \
duke@435	1898	\
duke@435	1899	product(bool, DisableExplicitGC, false, \
duke@435	1900	"Tells whether calling System.gc() does a full GC") \
duke@435	1901	\
duke@435	1902	notproduct(bool, CheckMemoryInitialization, false, \
duke@435	1903	"Checks memory initialization") \
duke@435	1904	\
duke@435	1905	product(bool, CollectGen0First, false, \
duke@435	1906	"Collect youngest generation before each full GC") \
duke@435	1907	\
duke@435	1908	diagnostic(bool, BindCMSThreadToCPU, false, \
duke@435	1909	"Bind CMS Thread to CPU if possible") \
duke@435	1910	\
duke@435	1911	diagnostic(uintx, CPUForCMSThread, 0, \
duke@435	1912	"When BindCMSThreadToCPU is true, the CPU to bind CMS thread to") \
duke@435	1913	\
duke@435	1914	product(bool, BindGCTaskThreadsToCPUs, false, \
duke@435	1915	"Bind GCTaskThreads to CPUs if possible") \
duke@435	1916	\
duke@435	1917	product(bool, UseGCTaskAffinity, false, \
duke@435	1918	"Use worker affinity when asking for GCTasks") \
duke@435	1919	\
duke@435	1920	product(uintx, ProcessDistributionStride, 4, \
duke@435	1921	"Stride through processors when distributing processes") \
duke@435	1922	\
duke@435	1923	product(uintx, CMSCoordinatorYieldSleepCount, 10, \
duke@435	1924	"number of times the coordinator GC thread will sleep while " \
duke@435	1925	"yielding before giving up and resuming GC") \
duke@435	1926	\
duke@435	1927	product(uintx, CMSYieldSleepCount, 0, \
duke@435	1928	"number of times a GC thread (minus the coordinator) " \
duke@435	1929	"will sleep while yielding before giving up and resuming GC") \
duke@435	1930	\
jmasa@445	1931	notproduct(bool, PrintFlagsFinal, false, \
jmasa@445	1932	"Print all command line flags after argument processing") \
jmasa@445	1933	\
duke@435	1934	/* gc tracing */ \
duke@435	1935	manageable(bool, PrintGC, false, \
duke@435	1936	"Print message at garbage collect") \
duke@435	1937	\
duke@435	1938	manageable(bool, PrintGCDetails, false, \
duke@435	1939	"Print more details at garbage collect") \
duke@435	1940	\
duke@435	1941	manageable(bool, PrintGCDateStamps, false, \
duke@435	1942	"Print date stamps at garbage collect") \
duke@435	1943	\
duke@435	1944	manageable(bool, PrintGCTimeStamps, false, \
duke@435	1945	"Print timestamps at garbage collect") \
duke@435	1946	\
duke@435	1947	product(bool, PrintGCTaskTimeStamps, false, \
duke@435	1948	"Print timestamps for individual gc worker thread tasks") \
duke@435	1949	\
duke@435	1950	develop(intx, ConcGCYieldTimeout, 0, \
duke@435	1951	"If non-zero, assert that GC threads yield within this # of ms.") \
duke@435	1952	\
duke@435	1953	notproduct(bool, TraceMarkSweep, false, \
duke@435	1954	"Trace mark sweep") \
duke@435	1955	\
duke@435	1956	product(bool, PrintReferenceGC, false, \
duke@435	1957	"Print times spent handling reference objects during GC " \
duke@435	1958	" (enabled only when PrintGCDetails)") \
duke@435	1959	\
duke@435	1960	develop(bool, TraceReferenceGC, false, \
duke@435	1961	"Trace handling of soft/weak/final/phantom references") \
duke@435	1962	\
duke@435	1963	develop(bool, TraceFinalizerRegistration, false, \
duke@435	1964	"Trace registration of final references") \
duke@435	1965	\
duke@435	1966	notproduct(bool, TraceScavenge, false, \
duke@435	1967	"Trace scavenge") \
duke@435	1968	\
duke@435	1969	product_rw(bool, TraceClassLoading, false, \
duke@435	1970	"Trace all classes loaded") \
duke@435	1971	\
duke@435	1972	product(bool, TraceClassLoadingPreorder, false, \
duke@435	1973	"Trace all classes loaded in order referenced (not loaded)") \
duke@435	1974	\
duke@435	1975	product_rw(bool, TraceClassUnloading, false, \
duke@435	1976	"Trace unloading of classes") \
duke@435	1977	\
duke@435	1978	product_rw(bool, TraceLoaderConstraints, false, \
duke@435	1979	"Trace loader constraints") \
duke@435	1980	\
duke@435	1981	product(bool, TraceGen0Time, false, \
duke@435	1982	"Trace accumulated time for Gen 0 collection") \
duke@435	1983	\
duke@435	1984	product(bool, TraceGen1Time, false, \
duke@435	1985	"Trace accumulated time for Gen 1 collection") \
duke@435	1986	\
duke@435	1987	product(bool, PrintTenuringDistribution, false, \
duke@435	1988	"Print tenuring age information") \
duke@435	1989	\
duke@435	1990	product_rw(bool, PrintHeapAtGC, false, \
duke@435	1991	"Print heap layout before and after each GC") \
duke@435	1992	\
duke@435	1993	product(bool, PrintHeapAtSIGBREAK, true, \
duke@435	1994	"Print heap layout in response to SIGBREAK") \
duke@435	1995	\
ysr@1050	1996	manageable(bool, PrintClassHistogramBeforeFullGC, false, \
ysr@1050	1997	"Print a class histogram before any major stop-world GC") \
ysr@1050	1998	\
ysr@1050	1999	manageable(bool, PrintClassHistogramAfterFullGC, false, \
ysr@1050	2000	"Print a class histogram after any major stop-world GC") \
ysr@1050	2001	\
duke@435	2002	manageable(bool, PrintClassHistogram, false, \
duke@435	2003	"Print a histogram of class instances") \
duke@435	2004	\
duke@435	2005	develop(bool, TraceWorkGang, false, \
duke@435	2006	"Trace activities of work gangs") \
duke@435	2007	\
duke@435	2008	product(bool, TraceParallelOldGCTasks, false, \
duke@435	2009	"Trace multithreaded GC activity") \
duke@435	2010	\
duke@435	2011	develop(bool, TraceBlockOffsetTable, false, \
duke@435	2012	"Print BlockOffsetTable maps") \
duke@435	2013	\
duke@435	2014	develop(bool, TraceCardTableModRefBS, false, \
duke@435	2015	"Print CardTableModRefBS maps") \
duke@435	2016	\
duke@435	2017	develop(bool, TraceGCTaskManager, false, \
duke@435	2018	"Trace actions of the GC task manager") \
duke@435	2019	\
duke@435	2020	develop(bool, TraceGCTaskQueue, false, \
duke@435	2021	"Trace actions of the GC task queues") \
duke@435	2022	\
duke@435	2023	develop(bool, TraceGCTaskThread, false, \
duke@435	2024	"Trace actions of the GC task threads") \
duke@435	2025	\
duke@435	2026	product(bool, PrintParallelOldGCPhaseTimes, false, \
duke@435	2027	"Print the time taken by each parallel old gc phase." \
duke@435	2028	"PrintGCDetails must also be enabled.") \
duke@435	2029	\
duke@435	2030	develop(bool, TraceParallelOldGCMarkingPhase, false, \
duke@435	2031	"Trace parallel old gc marking phase") \
duke@435	2032	\
duke@435	2033	develop(bool, TraceParallelOldGCSummaryPhase, false, \
duke@435	2034	"Trace parallel old gc summary phase") \
duke@435	2035	\
duke@435	2036	develop(bool, TraceParallelOldGCCompactionPhase, false, \
duke@435	2037	"Trace parallel old gc compaction phase") \
duke@435	2038	\
duke@435	2039	develop(bool, TraceParallelOldGCDensePrefix, false, \
duke@435	2040	"Trace parallel old gc dense prefix computation") \
duke@435	2041	\
duke@435	2042	develop(bool, IgnoreLibthreadGPFault, false, \
duke@435	2043	"Suppress workaround for libthread GP fault") \
duke@435	2044	\
apetrusenko@574	2045	product(bool, PrintJNIGCStalls, false, \
apetrusenko@574	2046	"Print diagnostic message when GC is stalled" \
apetrusenko@574	2047	"by JNI critical section") \
apetrusenko@574	2048	\
duke@435	2049	/* JVMTI heap profiling */ \
duke@435	2050	\
duke@435	2051	diagnostic(bool, TraceJVMTIObjectTagging, false, \
duke@435	2052	"Trace JVMTI object tagging calls") \
duke@435	2053	\
duke@435	2054	diagnostic(bool, VerifyBeforeIteration, false, \
duke@435	2055	"Verify memory system before JVMTI iteration") \
duke@435	2056	\
duke@435	2057	/* compiler interface */ \
duke@435	2058	\
duke@435	2059	develop(bool, CIPrintCompilerName, false, \
duke@435	2060	"when CIPrint is active, print the name of the active compiler") \
duke@435	2061	\
duke@435	2062	develop(bool, CIPrintCompileQueue, false, \
duke@435	2063	"display the contents of the compile queue whenever a " \
duke@435	2064	"compilation is enqueued") \
duke@435	2065	\
duke@435	2066	develop(bool, CIPrintRequests, false, \
duke@435	2067	"display every request for compilation") \
duke@435	2068	\
duke@435	2069	product(bool, CITime, false, \
duke@435	2070	"collect timing information for compilation") \
duke@435	2071	\
duke@435	2072	develop(bool, CITimeEach, false, \
duke@435	2073	"display timing information after each successful compilation") \
duke@435	2074	\
duke@435	2075	develop(bool, CICountOSR, true, \
duke@435	2076	"use a separate counter when assigning ids to osr compilations") \
duke@435	2077	\
duke@435	2078	develop(bool, CICompileNatives, true, \
duke@435	2079	"compile native methods if supported by the compiler") \
duke@435	2080	\
duke@435	2081	develop_pd(bool, CICompileOSR, \
duke@435	2082	"compile on stack replacement methods if supported by the " \
duke@435	2083	"compiler") \
duke@435	2084	\
duke@435	2085	develop(bool, CIPrintMethodCodes, false, \
duke@435	2086	"print method bytecodes of the compiled code") \
duke@435	2087	\
duke@435	2088	develop(bool, CIPrintTypeFlow, false, \
duke@435	2089	"print the results of ciTypeFlow analysis") \
duke@435	2090	\
duke@435	2091	develop(bool, CITraceTypeFlow, false, \
duke@435	2092	"detailed per-bytecode tracing of ciTypeFlow analysis") \
duke@435	2093	\
duke@435	2094	develop(intx, CICloneLoopTestLimit, 100, \
duke@435	2095	"size limit for blocks heuristically cloned in ciTypeFlow") \
duke@435	2096	\
duke@435	2097	/* temp diagnostics */ \
duke@435	2098	\
duke@435	2099	diagnostic(bool, TraceRedundantCompiles, false, \
duke@435	2100	"Have compile broker print when a request already in the queue is"\
duke@435	2101	" requested again") \
duke@435	2102	\
duke@435	2103	diagnostic(bool, InitialCompileFast, false, \
duke@435	2104	"Initial compile at CompLevel_fast_compile") \
duke@435	2105	\
duke@435	2106	diagnostic(bool, InitialCompileReallyFast, false, \
duke@435	2107	"Initial compile at CompLevel_really_fast_compile (no profile)") \
duke@435	2108	\
duke@435	2109	diagnostic(bool, FullProfileOnReInterpret, true, \
duke@435	2110	"On re-interpret unc-trap compile next at CompLevel_fast_compile")\
duke@435	2111	\
duke@435	2112	/* compiler */ \
duke@435	2113	\
duke@435	2114	product(intx, CICompilerCount, CI_COMPILER_COUNT, \
duke@435	2115	"Number of compiler threads to run") \
duke@435	2116	\
duke@435	2117	product(intx, CompilationPolicyChoice, 0, \
duke@435	2118	"which compilation policy (0/1)") \
duke@435	2119	\
duke@435	2120	develop(bool, UseStackBanging, true, \
duke@435	2121	"use stack banging for stack overflow checks (required for " \
duke@435	2122	"proper StackOverflow handling; disable only to measure cost " \
duke@435	2123	"of stackbanging)") \
duke@435	2124	\
duke@435	2125	develop(bool, Use24BitFPMode, true, \
duke@435	2126	"Set 24-bit FPU mode on a per-compile basis ") \
duke@435	2127	\
duke@435	2128	develop(bool, Use24BitFP, true, \
duke@435	2129	"use FP instructions that produce 24-bit precise results") \
duke@435	2130	\
duke@435	2131	develop(bool, UseStrictFP, true, \
duke@435	2132	"use strict fp if modifier strictfp is set") \
duke@435	2133	\
duke@435	2134	develop(bool, GenerateSynchronizationCode, true, \
duke@435	2135	"generate locking/unlocking code for synchronized methods and " \
duke@435	2136	"monitors") \
duke@435	2137	\
duke@435	2138	develop(bool, GenerateCompilerNullChecks, true, \
duke@435	2139	"Generate explicit null checks for loads/stores/calls") \
duke@435	2140	\
duke@435	2141	develop(bool, GenerateRangeChecks, true, \
duke@435	2142	"Generate range checks for array accesses") \
duke@435	2143	\
duke@435	2144	develop_pd(bool, ImplicitNullChecks, \
duke@435	2145	"generate code for implicit null checks") \
duke@435	2146	\
duke@435	2147	product(bool, PrintSafepointStatistics, false, \
duke@435	2148	"print statistics about safepoint synchronization") \
duke@435	2149	\
duke@435	2150	product(intx, PrintSafepointStatisticsCount, 300, \
duke@435	2151	"total number of safepoint statistics collected " \
duke@435	2152	"before printing them out") \
duke@435	2153	\
duke@435	2154	product(intx, PrintSafepointStatisticsTimeout, -1, \
duke@435	2155	"print safepoint statistics only when safepoint takes" \
duke@435	2156	" more than PrintSafepointSatisticsTimeout in millis") \
duke@435	2157	\
duke@435	2158	develop(bool, InlineAccessors, true, \
duke@435	2159	"inline accessor methods (get/set)") \
duke@435	2160	\
duke@435	2161	product(bool, Inline, true, \
duke@435	2162	"enable inlining") \
duke@435	2163	\
duke@435	2164	product(bool, ClipInlining, true, \
duke@435	2165	"clip inlining if aggregate method exceeds DesiredMethodLimit") \
duke@435	2166	\
duke@435	2167	develop(bool, UseCHA, true, \
duke@435	2168	"enable CHA") \
duke@435	2169	\
duke@435	2170	product(bool, UseTypeProfile, true, \
duke@435	2171	"Check interpreter profile for historically monomorphic calls") \
duke@435	2172	\
duke@435	2173	product(intx, TypeProfileMajorReceiverPercent, 90, \
duke@435	2174	"% of major receiver type to all profiled receivers") \
duke@435	2175	\
duke@435	2176	notproduct(bool, TimeCompiler, false, \
duke@435	2177	"time the compiler") \
duke@435	2178	\
duke@435	2179	notproduct(bool, TimeCompiler2, false, \
duke@435	2180	"detailed time the compiler (requires +TimeCompiler)") \
duke@435	2181	\
duke@435	2182	diagnostic(bool, PrintInlining, false, \
duke@435	2183	"prints inlining optimizations") \
duke@435	2184	\
duke@435	2185	diagnostic(bool, PrintIntrinsics, false, \
duke@435	2186	"prints attempted and successful inlining of intrinsics") \
duke@435	2187	\
twisti@1078	2188	product(bool, UsePopCountInstruction, false, \
twisti@1078	2189	"Use population count instruction") \
twisti@1078	2190	\
duke@435	2191	diagnostic(ccstrlist, DisableIntrinsic, "", \
duke@435	2192	"do not expand intrinsics whose (internal) names appear here") \
duke@435	2193	\
duke@435	2194	develop(bool, StressReflectiveCode, false, \
duke@435	2195	"Use inexact types at allocations, etc., to test reflection") \
duke@435	2196	\
duke@435	2197	develop(bool, EagerInitialization, false, \
duke@435	2198	"Eagerly initialize classes if possible") \
duke@435	2199	\
duke@435	2200	product(bool, Tier1UpdateMethodData, trueInTiered, \
duke@435	2201	"Update methodDataOops in Tier1-generated code") \
duke@435	2202	\
duke@435	2203	develop(bool, TraceMethodReplacement, false, \
duke@435	2204	"Print when methods are replaced do to recompilation") \
duke@435	2205	\
duke@435	2206	develop(bool, PrintMethodFlushing, false, \
duke@435	2207	"print the nmethods being flushed") \
duke@435	2208	\
duke@435	2209	notproduct(bool, LogMultipleMutexLocking, false, \
duke@435	2210	"log locking and unlocking of mutexes (only if multiple locks " \
duke@435	2211	"are held)") \
duke@435	2212	\
duke@435	2213	develop(bool, UseRelocIndex, false, \
duke@435	2214	"use an index to speed random access to relocations") \
duke@435	2215	\
duke@435	2216	develop(bool, StressCodeBuffers, false, \
duke@435	2217	"Exercise code buffer expansion and other rare state changes") \
duke@435	2218	\
duke@435	2219	diagnostic(bool, DebugNonSafepoints, trueInDebug, \
duke@435	2220	"Generate extra debugging info for non-safepoints in nmethods") \
duke@435	2221	\
duke@435	2222	diagnostic(bool, DebugInlinedCalls, true, \
duke@435	2223	"If false, restricts profiled locations to the root method only") \
duke@435	2224	\
duke@435	2225	product(bool, PrintVMOptions, trueInDebug, \
duke@435	2226	"print VM flag settings") \
duke@435	2227	\
kvn@999	2228	product(bool, IgnoreUnrecognizedVMOptions, false, \
kvn@999	2229	"Ignore unrecognized VM options") \
kvn@999	2230	\
duke@435	2231	diagnostic(bool, SerializeVMOutput, true, \
duke@435	2232	"Use a mutex to serialize output to tty and hotspot.log") \
duke@435	2233	\
duke@435	2234	diagnostic(bool, DisplayVMOutput, true, \
duke@435	2235	"Display all VM output on the tty, independently of LogVMOutput") \
duke@435	2236	\
duke@435	2237	diagnostic(bool, LogVMOutput, trueInDebug, \
duke@435	2238	"Save VM output to hotspot.log, or to LogFile") \
duke@435	2239	\
duke@435	2240	diagnostic(ccstr, LogFile, NULL, \
duke@435	2241	"If LogVMOutput is on, save VM output to this file [hotspot.log]") \
duke@435	2242	\
duke@435	2243	product(ccstr, ErrorFile, NULL, \
duke@435	2244	"If an error occurs, save the error data to this file " \
duke@435	2245	"[default: ./hs_err_pid%p.log] (%p replaced with pid)") \
duke@435	2246	\
duke@435	2247	product(bool, DisplayVMOutputToStderr, false, \
duke@435	2248	"If DisplayVMOutput is true, display all VM output to stderr") \
duke@435	2249	\
duke@435	2250	product(bool, DisplayVMOutputToStdout, false, \
duke@435	2251	"If DisplayVMOutput is true, display all VM output to stdout") \
duke@435	2252	\
duke@435	2253	product(bool, UseHeavyMonitors, false, \
duke@435	2254	"use heavyweight instead of lightweight Java monitors") \
duke@435	2255	\
duke@435	2256	notproduct(bool, PrintSymbolTableSizeHistogram, false, \
duke@435	2257	"print histogram of the symbol table") \
duke@435	2258	\
duke@435	2259	notproduct(bool, ExitVMOnVerifyError, false, \
duke@435	2260	"standard exit from VM if bytecode verify error " \
duke@435	2261	"(only in debug mode)") \
duke@435	2262	\
duke@435	2263	notproduct(ccstr, AbortVMOnException, NULL, \
duke@435	2264	"Call fatal if this exception is thrown. Example: " \
duke@435	2265	"java -XX:AbortVMOnException=java.lang.NullPointerException Foo") \
duke@435	2266	\
duke@435	2267	develop(bool, DebugVtables, false, \
duke@435	2268	"add debugging code to vtable dispatch") \
duke@435	2269	\
duke@435	2270	develop(bool, PrintVtables, false, \
duke@435	2271	"print vtables when printing klass") \
duke@435	2272	\
duke@435	2273	notproduct(bool, PrintVtableStats, false, \
duke@435	2274	"print vtables stats at end of run") \
duke@435	2275	\
duke@435	2276	develop(bool, TraceCreateZombies, false, \
duke@435	2277	"trace creation of zombie nmethods") \
duke@435	2278	\
duke@435	2279	notproduct(bool, IgnoreLockingAssertions, false, \
duke@435	2280	"disable locking assertions (for speed)") \
duke@435	2281	\
duke@435	2282	notproduct(bool, VerifyLoopOptimizations, false, \
duke@435	2283	"verify major loop optimizations") \
duke@435	2284	\
duke@435	2285	product(bool, RangeCheckElimination, true, \
duke@435	2286	"Split loop iterations to eliminate range checks") \
duke@435	2287	\
duke@435	2288	develop_pd(bool, UncommonNullCast, \
duke@435	2289	"track occurrences of null in casts; adjust compiler tactics") \
duke@435	2290	\
duke@435	2291	develop(bool, TypeProfileCasts, true, \
duke@435	2292	"treat casts like calls for purposes of type profiling") \
duke@435	2293	\
duke@435	2294	develop(bool, MonomorphicArrayCheck, true, \
duke@435	2295	"Uncommon-trap array store checks that require full type check") \
duke@435	2296	\
duke@435	2297	develop(bool, DelayCompilationDuringStartup, true, \
duke@435	2298	"Delay invoking the compiler until main application class is " \
duke@435	2299	"loaded") \
duke@435	2300	\
duke@435	2301	develop(bool, CompileTheWorld, false, \
duke@435	2302	"Compile all methods in all classes in bootstrap class path " \
duke@435	2303	"(stress test)") \
duke@435	2304	\
duke@435	2305	develop(bool, CompileTheWorldPreloadClasses, true, \
duke@435	2306	"Preload all classes used by a class before start loading") \
duke@435	2307	\
duke@435	2308	notproduct(bool, CompileTheWorldIgnoreInitErrors, false, \
duke@435	2309	"Compile all methods although class initializer failed") \
duke@435	2310	\
duke@435	2311	develop(bool, TraceIterativeGVN, false, \
duke@435	2312	"Print progress during Iterative Global Value Numbering") \
duke@435	2313	\
duke@435	2314	develop(bool, FillDelaySlots, true, \
duke@435	2315	"Fill delay slots (on SPARC only)") \
duke@435	2316	\
duke@435	2317	develop(bool, VerifyIterativeGVN, false, \
duke@435	2318	"Verify Def-Use modifications during sparse Iterative Global " \
duke@435	2319	"Value Numbering") \
duke@435	2320	\
duke@435	2321	notproduct(bool, TracePhaseCCP, false, \
duke@435	2322	"Print progress during Conditional Constant Propagation") \
duke@435	2323	\
duke@435	2324	develop(bool, TimeLivenessAnalysis, false, \
duke@435	2325	"Time computation of bytecode liveness analysis") \
duke@435	2326	\
duke@435	2327	develop(bool, TraceLivenessGen, false, \
duke@435	2328	"Trace the generation of liveness analysis information") \
duke@435	2329	\
duke@435	2330	notproduct(bool, TraceLivenessQuery, false, \
duke@435	2331	"Trace queries of liveness analysis information") \
duke@435	2332	\
duke@435	2333	notproduct(bool, CollectIndexSetStatistics, false, \
duke@435	2334	"Collect information about IndexSets") \
duke@435	2335	\
duke@435	2336	develop(bool, PrintDominators, false, \
duke@435	2337	"Print out dominator trees for GVN") \
duke@435	2338	\
duke@435	2339	develop(bool, UseLoopSafepoints, true, \
duke@435	2340	"Generate Safepoint nodes in every loop") \
duke@435	2341	\
duke@435	2342	notproduct(bool, TraceCISCSpill, false, \
duke@435	2343	"Trace allocators use of cisc spillable instructions") \
duke@435	2344	\
duke@435	2345	notproduct(bool, TraceSpilling, false, \
duke@435	2346	"Trace spilling") \
duke@435	2347	\
duke@435	2348	develop(bool, DeutschShiffmanExceptions, true, \
duke@435	2349	"Fast check to find exception handler for precisely typed " \
duke@435	2350	"exceptions") \
duke@435	2351	\
duke@435	2352	product(bool, SplitIfBlocks, true, \
duke@435	2353	"Clone compares and control flow through merge points to fold " \
duke@435	2354	"some branches") \
duke@435	2355	\
duke@435	2356	develop(intx, FastAllocateSizeLimit, 128*K, \
duke@435	2357	/* Note: This value is zero mod 1<<13 for a cheap sparc set. */ \
duke@435	2358	"Inline allocations larger than this in doublewords must go slow")\
duke@435	2359	\
duke@435	2360	product(bool, AggressiveOpts, false, \
duke@435	2361	"Enable aggressive optimizations - see arguments.cpp") \
duke@435	2362	\
kvn@627	2363	product(bool, UseStringCache, false, \
kvn@627	2364	"Enable String cache capabilities on String.java") \
kvn@627	2365	\
duke@435	2366	/* statistics */ \
duke@435	2367	develop(bool, UseVTune, false, \
duke@435	2368	"enable support for Intel's VTune profiler") \
duke@435	2369	\
duke@435	2370	develop(bool, CountCompiledCalls, false, \
duke@435	2371	"counts method invocations") \
duke@435	2372	\
duke@435	2373	notproduct(bool, CountRuntimeCalls, false, \
duke@435	2374	"counts VM runtime calls") \
duke@435	2375	\
duke@435	2376	develop(bool, CountJNICalls, false, \
duke@435	2377	"counts jni method invocations") \
duke@435	2378	\
duke@435	2379	notproduct(bool, CountJVMCalls, false, \
duke@435	2380	"counts jvm method invocations") \
duke@435	2381	\
duke@435	2382	notproduct(bool, CountRemovableExceptions, false, \
duke@435	2383	"count exceptions that could be replaced by branches due to " \
duke@435	2384	"inlining") \
duke@435	2385	\
duke@435	2386	notproduct(bool, ICMissHistogram, false, \
duke@435	2387	"produce histogram of IC misses") \
duke@435	2388	\
duke@435	2389	notproduct(bool, PrintClassStatistics, false, \
duke@435	2390	"prints class statistics at end of run") \
duke@435	2391	\
duke@435	2392	notproduct(bool, PrintMethodStatistics, false, \
duke@435	2393	"prints method statistics at end of run") \
duke@435	2394	\
duke@435	2395	/* interpreter */ \
duke@435	2396	develop(bool, ClearInterpreterLocals, false, \
duke@435	2397	"Always clear local variables of interpreter activations upon " \
duke@435	2398	"entry") \
duke@435	2399	\
duke@435	2400	product_pd(bool, RewriteBytecodes, \
duke@435	2401	"Allow rewriting of bytecodes (bytecodes are not immutable)") \
duke@435	2402	\
duke@435	2403	product_pd(bool, RewriteFrequentPairs, \
duke@435	2404	"Rewrite frequently used bytecode pairs into a single bytecode") \
duke@435	2405	\
jrose@535	2406	diagnostic(bool, PrintInterpreter, false, \
duke@435	2407	"Prints the generated interpreter code") \
duke@435	2408	\
duke@435	2409	product(bool, UseInterpreter, true, \
duke@435	2410	"Use interpreter for non-compiled methods") \
duke@435	2411	\
duke@435	2412	develop(bool, UseFastSignatureHandlers, true, \
duke@435	2413	"Use fast signature handlers for native calls") \
duke@435	2414	\
duke@435	2415	develop(bool, UseV8InstrsOnly, false, \
duke@435	2416	"Use SPARC-V8 Compliant instruction subset") \
duke@435	2417	\
duke@435	2418	product(bool, UseNiagaraInstrs, false, \
duke@435	2419	"Use Niagara-efficient instruction subset") \
duke@435	2420	\
duke@435	2421	develop(bool, UseCASForSwap, false, \
duke@435	2422	"Do not use swap instructions, but only CAS (in a loop) on SPARC")\
duke@435	2423	\
duke@435	2424	product(bool, UseLoopCounter, true, \
duke@435	2425	"Increment invocation counter on backward branch") \
duke@435	2426	\
duke@435	2427	product(bool, UseFastEmptyMethods, true, \
duke@435	2428	"Use fast method entry code for empty methods") \
duke@435	2429	\
duke@435	2430	product(bool, UseFastAccessorMethods, true, \
duke@435	2431	"Use fast method entry code for accessor methods") \
duke@435	2432	\
duke@435	2433	product_pd(bool, UseOnStackReplacement, \
duke@435	2434	"Use on stack replacement, calls runtime if invoc. counter " \
duke@435	2435	"overflows in loop") \
duke@435	2436	\
duke@435	2437	notproduct(bool, TraceOnStackReplacement, false, \
duke@435	2438	"Trace on stack replacement") \
duke@435	2439	\
duke@435	2440	develop(bool, PoisonOSREntry, true, \
duke@435	2441	"Detect abnormal calls to OSR code") \
duke@435	2442	\
duke@435	2443	product_pd(bool, PreferInterpreterNativeStubs, \
duke@435	2444	"Use always interpreter stubs for native methods invoked via " \
duke@435	2445	"interpreter") \
duke@435	2446	\
duke@435	2447	develop(bool, CountBytecodes, false, \
duke@435	2448	"Count number of bytecodes executed") \
duke@435	2449	\
duke@435	2450	develop(bool, PrintBytecodeHistogram, false, \
duke@435	2451	"Print histogram of the executed bytecodes") \
duke@435	2452	\
duke@435	2453	develop(bool, PrintBytecodePairHistogram, false, \
duke@435	2454	"Print histogram of the executed bytecode pairs") \
duke@435	2455	\
jrose@535	2456	diagnostic(bool, PrintSignatureHandlers, false, \
duke@435	2457	"Print code generated for native method signature handlers") \
duke@435	2458	\
duke@435	2459	develop(bool, VerifyOops, false, \
duke@435	2460	"Do plausibility checks for oops") \
duke@435	2461	\
duke@435	2462	develop(bool, CheckUnhandledOops, false, \
duke@435	2463	"Check for unhandled oops in VM code") \
duke@435	2464	\
duke@435	2465	develop(bool, VerifyJNIFields, trueInDebug, \
duke@435	2466	"Verify jfieldIDs for instance fields") \
duke@435	2467	\
duke@435	2468	notproduct(bool, VerifyJNIEnvThread, false, \
duke@435	2469	"Verify JNIEnv.thread == Thread::current() when entering VM " \
duke@435	2470	"from JNI") \
duke@435	2471	\
duke@435	2472	develop(bool, VerifyFPU, false, \
duke@435	2473	"Verify FPU state (check for NaN's, etc.)") \
duke@435	2474	\
duke@435	2475	develop(bool, VerifyThread, false, \
duke@435	2476	"Watch the thread register for corruption (SPARC only)") \
duke@435	2477	\
duke@435	2478	develop(bool, VerifyActivationFrameSize, false, \
duke@435	2479	"Verify that activation frame didn't become smaller than its " \
duke@435	2480	"minimal size") \
duke@435	2481	\
duke@435	2482	develop(bool, TraceFrequencyInlining, false, \
duke@435	2483	"Trace frequency based inlining") \
duke@435	2484	\
duke@435	2485	notproduct(bool, TraceTypeProfile, false, \
duke@435	2486	"Trace type profile") \
duke@435	2487	\
duke@435	2488	develop_pd(bool, InlineIntrinsics, \
duke@435	2489	"Inline intrinsics that can be statically resolved") \
duke@435	2490	\
duke@435	2491	product_pd(bool, ProfileInterpreter, \
duke@435	2492	"Profile at the bytecode level during interpretation") \
duke@435	2493	\
duke@435	2494	develop_pd(bool, ProfileTraps, \
duke@435	2495	"Profile deoptimization traps at the bytecode level") \
duke@435	2496	\
duke@435	2497	product(intx, ProfileMaturityPercentage, 20, \
duke@435	2498	"number of method invocations/branches (expressed as % of " \
duke@435	2499	"CompileThreshold) before using the method's profile") \
duke@435	2500	\
duke@435	2501	develop(bool, PrintMethodData, false, \
duke@435	2502	"Print the results of +ProfileInterpreter at end of run") \
duke@435	2503	\
duke@435	2504	develop(bool, VerifyDataPointer, trueInDebug, \
duke@435	2505	"Verify the method data pointer during interpreter profiling") \
duke@435	2506	\
duke@435	2507	develop(bool, VerifyCompiledCode, false, \
duke@435	2508	"Include miscellaneous runtime verifications in nmethod code; " \
duke@435	2509	"off by default because it disturbs nmethod size heuristics.") \
duke@435	2510	\
duke@435	2511	\
duke@435	2512	/* compilation */ \
duke@435	2513	product(bool, UseCompiler, true, \
duke@435	2514	"use compilation") \
duke@435	2515	\
duke@435	2516	develop(bool, TraceCompilationPolicy, false, \
duke@435	2517	"Trace compilation policy") \
duke@435	2518	\
duke@435	2519	develop(bool, TimeCompilationPolicy, false, \
duke@435	2520	"Time the compilation policy") \
duke@435	2521	\
duke@435	2522	product(bool, UseCounterDecay, true, \
duke@435	2523	"adjust recompilation counters") \
duke@435	2524	\
duke@435	2525	develop(intx, CounterHalfLifeTime, 30, \
duke@435	2526	"half-life time of invocation counters (in secs)") \
duke@435	2527	\
duke@435	2528	develop(intx, CounterDecayMinIntervalLength, 500, \
duke@435	2529	"Min. ms. between invocation of CounterDecay") \
duke@435	2530	\
duke@435	2531	product(bool, AlwaysCompileLoopMethods, false, \
duke@435	2532	"when using recompilation, never interpret methods " \
duke@435	2533	"containing loops") \
duke@435	2534	\
duke@435	2535	product(bool, DontCompileHugeMethods, true, \
duke@435	2536	"don't compile methods > HugeMethodLimit") \
duke@435	2537	\
duke@435	2538	/* Bytecode escape analysis estimation. */ \
duke@435	2539	product(bool, EstimateArgEscape, true, \
duke@435	2540	"Analyze bytecodes to estimate escape state of arguments") \
duke@435	2541	\
duke@435	2542	product(intx, BCEATraceLevel, 0, \
duke@435	2543	"How much tracing to do of bytecode escape analysis estimates") \
duke@435	2544	\
duke@435	2545	product(intx, MaxBCEAEstimateLevel, 5, \
duke@435	2546	"Maximum number of nested calls that are analyzed by BC EA.") \
duke@435	2547	\
duke@435	2548	product(intx, MaxBCEAEstimateSize, 150, \
duke@435	2549	"Maximum bytecode size of a method to be analyzed by BC EA.") \
duke@435	2550	\
duke@435	2551	product(intx, AllocatePrefetchStyle, 1, \
duke@435	2552	"0 = no prefetch, " \
duke@435	2553	"1 = prefetch instructions for each allocation, " \
duke@435	2554	"2 = use TLAB watermark to gate allocation prefetch") \
duke@435	2555	\
duke@435	2556	product(intx, AllocatePrefetchDistance, -1, \
duke@435	2557	"Distance to prefetch ahead of allocation pointer") \
duke@435	2558	\
duke@435	2559	product(intx, AllocatePrefetchLines, 1, \
duke@435	2560	"Number of lines to prefetch ahead of allocation pointer") \
duke@435	2561	\
duke@435	2562	product(intx, AllocatePrefetchStepSize, 16, \
duke@435	2563	"Step size in bytes of sequential prefetch instructions") \
duke@435	2564	\
duke@435	2565	product(intx, AllocatePrefetchInstr, 0, \
duke@435	2566	"Prefetch instruction to prefetch ahead of allocation pointer") \
duke@435	2567	\
duke@435	2568	product(intx, ReadPrefetchInstr, 0, \
duke@435	2569	"Prefetch instruction to prefetch ahead") \
duke@435	2570	\
duke@435	2571	/* deoptimization */ \
duke@435	2572	develop(bool, TraceDeoptimization, false, \
duke@435	2573	"Trace deoptimization") \
duke@435	2574	\
duke@435	2575	develop(bool, DebugDeoptimization, false, \
duke@435	2576	"Tracing various information while debugging deoptimization") \
duke@435	2577	\
duke@435	2578	product(intx, SelfDestructTimer, 0, \
duke@435	2579	"Will cause VM to terminate after a given time (in minutes) " \
duke@435	2580	"(0 means off)") \
duke@435	2581	\
duke@435	2582	product(intx, MaxJavaStackTraceDepth, 1024, \
duke@435	2583	"Max. no. of lines in the stack trace for Java exceptions " \
duke@435	2584	"(0 means all)") \
duke@435	2585	\
duke@435	2586	develop(intx, GuaranteedSafepointInterval, 1000, \
duke@435	2587	"Guarantee a safepoint (at least) every so many milliseconds " \
duke@435	2588	"(0 means none)") \
duke@435	2589	\
duke@435	2590	product(intx, SafepointTimeoutDelay, 10000, \
duke@435	2591	"Delay in milliseconds for option SafepointTimeout") \
duke@435	2592	\
duke@435	2593	product(intx, NmethodSweepFraction, 4, \
duke@435	2594	"Number of invocations of sweeper to cover all nmethods") \
duke@435	2595	\
duke@435	2596	notproduct(intx, MemProfilingInterval, 500, \
duke@435	2597	"Time between each invocation of the MemProfiler") \
duke@435	2598	\
duke@435	2599	develop(intx, MallocCatchPtr, -1, \
duke@435	2600	"Hit breakpoint when mallocing/freeing this pointer") \
duke@435	2601	\
duke@435	2602	notproduct(intx, AssertRepeat, 1, \
duke@435	2603	"number of times to evaluate expression in assert " \
duke@435	2604	"(to estimate overhead); only works with -DUSE_REPEATED_ASSERTS") \
duke@435	2605	\
duke@435	2606	notproduct(ccstrlist, SuppressErrorAt, "", \
duke@435	2607	"List of assertions (file:line) to muzzle") \
duke@435	2608	\
duke@435	2609	notproduct(uintx, HandleAllocationLimit, 1024, \
duke@435	2610	"Threshold for HandleMark allocation when +TraceHandleAllocation "\
duke@435	2611	"is used") \
duke@435	2612	\
duke@435	2613	develop(uintx, TotalHandleAllocationLimit, 1024, \
duke@435	2614	"Threshold for total handle allocation when " \
duke@435	2615	"+TraceHandleAllocation is used") \
duke@435	2616	\
duke@435	2617	develop(intx, StackPrintLimit, 100, \
duke@435	2618	"number of stack frames to print in VM-level stack dump") \
duke@435	2619	\
duke@435	2620	notproduct(intx, MaxElementPrintSize, 256, \
duke@435	2621	"maximum number of elements to print") \
duke@435	2622	\
duke@435	2623	notproduct(intx, MaxSubklassPrintSize, 4, \
duke@435	2624	"maximum number of subklasses to print when printing klass") \
duke@435	2625	\
duke@435	2626	develop(intx, MaxInlineLevel, 9, \
duke@435	2627	"maximum number of nested calls that are inlined") \
duke@435	2628	\
duke@435	2629	develop(intx, MaxRecursiveInlineLevel, 1, \
duke@435	2630	"maximum number of nested recursive calls that are inlined") \
duke@435	2631	\
kvn@1110	2632	product_pd(intx, InlineSmallCode, \
duke@435	2633	"Only inline already compiled methods if their code size is " \
duke@435	2634	"less than this") \
duke@435	2635	\
duke@435	2636	product(intx, MaxInlineSize, 35, \
duke@435	2637	"maximum bytecode size of a method to be inlined") \
duke@435	2638	\
duke@435	2639	product_pd(intx, FreqInlineSize, \
duke@435	2640	"maximum bytecode size of a frequent method to be inlined") \
duke@435	2641	\
duke@435	2642	develop(intx, MaxTrivialSize, 6, \
duke@435	2643	"maximum bytecode size of a trivial method to be inlined") \
duke@435	2644	\
duke@435	2645	develop(intx, MinInliningThreshold, 250, \
duke@435	2646	"min. invocation count a method needs to have to be inlined") \
duke@435	2647	\
duke@435	2648	develop(intx, AlignEntryCode, 4, \
duke@435	2649	"aligns entry code to specified value (in bytes)") \
duke@435	2650	\
duke@435	2651	develop(intx, MethodHistogramCutoff, 100, \
duke@435	2652	"cutoff value for method invoc. histogram (+CountCalls)") \
duke@435	2653	\
duke@435	2654	develop(intx, ProfilerNumberOfInterpretedMethods, 25, \
duke@435	2655	"# of interpreted methods to show in profile") \
duke@435	2656	\
duke@435	2657	develop(intx, ProfilerNumberOfCompiledMethods, 25, \
duke@435	2658	"# of compiled methods to show in profile") \
duke@435	2659	\
duke@435	2660	develop(intx, ProfilerNumberOfStubMethods, 25, \
duke@435	2661	"# of stub methods to show in profile") \
duke@435	2662	\
duke@435	2663	develop(intx, ProfilerNumberOfRuntimeStubNodes, 25, \
duke@435	2664	"# of runtime stub nodes to show in profile") \
duke@435	2665	\
duke@435	2666	product(intx, ProfileIntervalsTicks, 100, \
duke@435	2667	"# of ticks between printing of interval profile " \
duke@435	2668	"(+ProfileIntervals)") \
duke@435	2669	\
duke@435	2670	notproduct(intx, ScavengeALotInterval, 1, \
duke@435	2671	"Interval between which scavenge will occur with +ScavengeALot") \
duke@435	2672	\
duke@435	2673	notproduct(intx, FullGCALotInterval, 1, \
duke@435	2674	"Interval between which full gc will occur with +FullGCALot") \
duke@435	2675	\
duke@435	2676	notproduct(intx, FullGCALotStart, 0, \
duke@435	2677	"For which invocation to start FullGCAlot") \
duke@435	2678	\
duke@435	2679	notproduct(intx, FullGCALotDummies, 32*K, \
duke@435	2680	"Dummy object allocated with +FullGCALot, forcing all objects " \
duke@435	2681	"to move") \
duke@435	2682	\
duke@435	2683	develop(intx, DontYieldALotInterval, 10, \
duke@435	2684	"Interval between which yields will be dropped (milliseconds)") \
duke@435	2685	\
duke@435	2686	develop(intx, MinSleepInterval, 1, \
duke@435	2687	"Minimum sleep() interval (milliseconds) when " \
duke@435	2688	"ConvertSleepToYield is off (used for SOLARIS)") \
duke@435	2689	\
duke@435	2690	product(intx, EventLogLength, 2000, \
duke@435	2691	"maximum nof events in event log") \
duke@435	2692	\
duke@435	2693	develop(intx, ProfilerPCTickThreshold, 15, \
duke@435	2694	"Number of ticks in a PC buckets to be a hotspot") \
duke@435	2695	\
duke@435	2696	notproduct(intx, DeoptimizeALotInterval, 5, \
duke@435	2697	"Number of exits until DeoptimizeALot kicks in") \
duke@435	2698	\
duke@435	2699	notproduct(intx, ZombieALotInterval, 5, \
duke@435	2700	"Number of exits until ZombieALot kicks in") \
duke@435	2701	\
duke@435	2702	develop(bool, StressNonEntrant, false, \
duke@435	2703	"Mark nmethods non-entrant at registration") \
duke@435	2704	\
duke@435	2705	diagnostic(intx, MallocVerifyInterval, 0, \
duke@435	2706	"if non-zero, verify C heap after every N calls to " \
duke@435	2707	"malloc/realloc/free") \
duke@435	2708	\
duke@435	2709	diagnostic(intx, MallocVerifyStart, 0, \
duke@435	2710	"if non-zero, start verifying C heap after Nth call to " \
duke@435	2711	"malloc/realloc/free") \
duke@435	2712	\
duke@435	2713	product(intx, TypeProfileWidth, 2, \
duke@435	2714	"number of receiver types to record in call/cast profile") \
duke@435	2715	\
duke@435	2716	develop(intx, BciProfileWidth, 2, \
duke@435	2717	"number of return bci's to record in ret profile") \
duke@435	2718	\
duke@435	2719	product(intx, PerMethodRecompilationCutoff, 400, \
duke@435	2720	"After recompiling N times, stay in the interpreter (-1=>'Inf')") \
duke@435	2721	\
duke@435	2722	product(intx, PerBytecodeRecompilationCutoff, 100, \
duke@435	2723	"Per-BCI limit on repeated recompilation (-1=>'Inf')") \
duke@435	2724	\
duke@435	2725	product(intx, PerMethodTrapLimit, 100, \
duke@435	2726	"Limit on traps (of one kind) in a method (includes inlines)") \
duke@435	2727	\
duke@435	2728	product(intx, PerBytecodeTrapLimit, 4, \
duke@435	2729	"Limit on traps (of one kind) at a particular BCI") \
duke@435	2730	\
duke@435	2731	develop(intx, FreqCountInvocations, 1, \
duke@435	2732	"Scaling factor for branch frequencies (deprecated)") \
duke@435	2733	\
duke@435	2734	develop(intx, InlineFrequencyRatio, 20, \
duke@435	2735	"Ratio of call site execution to caller method invocation") \
duke@435	2736	\
duke@435	2737	develop_pd(intx, InlineFrequencyCount, \
duke@435	2738	"Count of call site execution necessary to trigger frequent " \
duke@435	2739	"inlining") \
duke@435	2740	\
duke@435	2741	develop(intx, InlineThrowCount, 50, \
duke@435	2742	"Force inlining of interpreted methods that throw this often") \
duke@435	2743	\
duke@435	2744	develop(intx, InlineThrowMaxSize, 200, \
duke@435	2745	"Force inlining of throwing methods smaller than this") \
duke@435	2746	\
duke@435	2747	product(intx, AliasLevel, 3, \
duke@435	2748	"0 for no aliasing, 1 for oop/field/static/array split, " \
duke@435	2749	"2 for class split, 3 for unique instances") \
duke@435	2750	\
duke@435	2751	develop(bool, VerifyAliases, false, \
duke@435	2752	"perform extra checks on the results of alias analysis") \
duke@435	2753	\
duke@435	2754	develop(intx, ProfilerNodeSize, 1024, \
duke@435	2755	"Size in K to allocate for the Profile Nodes of each thread") \
duke@435	2756	\
duke@435	2757	develop(intx, V8AtomicOperationUnderLockSpinCount, 50, \
duke@435	2758	"Number of times to spin wait on a v8 atomic operation lock") \
duke@435	2759	\
duke@435	2760	product(intx, ReadSpinIterations, 100, \
duke@435	2761	"Number of read attempts before a yield (spin inner loop)") \
duke@435	2762	\
duke@435	2763	product_pd(intx, PreInflateSpin, \
duke@435	2764	"Number of times to spin wait before inflation") \
duke@435	2765	\
duke@435	2766	product(intx, PreBlockSpin, 10, \
duke@435	2767	"Number of times to spin in an inflated lock before going to " \
duke@435	2768	"an OS lock") \
duke@435	2769	\
duke@435	2770	/* gc parameters */ \
duke@435	2771	product(uintx, MaxHeapSize, ScaleForWordSize(64*M), \
duke@435	2772	"Default maximum size for object heap (in bytes)") \
duke@435	2773	\
duke@435	2774	product_pd(uintx, NewSize, \
duke@435	2775	"Default size of new generation (in bytes)") \
duke@435	2776	\
duke@435	2777	product(uintx, MaxNewSize, max_uintx, \
duke@435	2778	"Maximum size of new generation (in bytes)") \
duke@435	2779	\
duke@435	2780	product(uintx, PretenureSizeThreshold, 0, \
duke@435	2781	"Max size in bytes of objects allocated in DefNew generation") \
duke@435	2782	\
duke@435	2783	product_pd(uintx, TLABSize, \
duke@435	2784	"Default (or starting) size of TLAB (in bytes)") \
duke@435	2785	\
duke@435	2786	product(uintx, MinTLABSize, 2*K, \
duke@435	2787	"Minimum allowed TLAB size (in bytes)") \
duke@435	2788	\
duke@435	2789	product(uintx, TLABAllocationWeight, 35, \
duke@435	2790	"Allocation averaging weight") \
duke@435	2791	\
duke@435	2792	product(uintx, TLABWasteTargetPercent, 1, \
duke@435	2793	"Percentage of Eden that can be wasted") \
duke@435	2794	\
duke@435	2795	product(uintx, TLABRefillWasteFraction, 64, \
duke@435	2796	"Max TLAB waste at a refill (internal fragmentation)") \
duke@435	2797	\
duke@435	2798	product(uintx, TLABWasteIncrement, 4, \
duke@435	2799	"Increment allowed waste at slow allocation") \
duke@435	2800	\
duke@435	2801	product_pd(intx, SurvivorRatio, \
duke@435	2802	"Ratio of eden/survivor space size") \
duke@435	2803	\
duke@435	2804	product_pd(intx, NewRatio, \
duke@435	2805	"Ratio of new/old generation sizes") \
duke@435	2806	\
duke@435	2807	product(uintx, MaxLiveObjectEvacuationRatio, 100, \
duke@435	2808	"Max percent of eden objects that will be live at scavenge") \
duke@435	2809	\
duke@435	2810	product_pd(uintx, NewSizeThreadIncrease, \
duke@435	2811	"Additional size added to desired new generation size per " \
duke@435	2812	"non-daemon thread (in bytes)") \
duke@435	2813	\
duke@435	2814	product(uintx, OldSize, ScaleForWordSize(4096*K), \
duke@435	2815	"Default size of tenured generation (in bytes)") \
duke@435	2816	\
duke@435	2817	product_pd(uintx, PermSize, \
duke@435	2818	"Default size of permanent generation (in bytes)") \
duke@435	2819	\
duke@435	2820	product_pd(uintx, MaxPermSize, \
duke@435	2821	"Maximum size of permanent generation (in bytes)") \
duke@435	2822	\
duke@435	2823	product(uintx, MinHeapFreeRatio, 40, \
duke@435	2824	"Min percentage of heap free after GC to avoid expansion") \
duke@435	2825	\
duke@435	2826	product(uintx, MaxHeapFreeRatio, 70, \
duke@435	2827	"Max percentage of heap free after GC to avoid shrinking") \
duke@435	2828	\
duke@435	2829	product(intx, SoftRefLRUPolicyMSPerMB, 1000, \
duke@435	2830	"Number of milliseconds per MB of free space in the heap") \
duke@435	2831	\
duke@435	2832	product(uintx, MinHeapDeltaBytes, ScaleForWordSize(128*K), \
duke@435	2833	"Min change in heap space due to GC (in bytes)") \
duke@435	2834	\
duke@435	2835	product(uintx, MinPermHeapExpansion, ScaleForWordSize(256*K), \
duke@435	2836	"Min expansion of permanent heap (in bytes)") \
duke@435	2837	\
duke@435	2838	product(uintx, MaxPermHeapExpansion, ScaleForWordSize(4*M), \
duke@435	2839	"Max expansion of permanent heap without full GC (in bytes)") \
duke@435	2840	\
duke@435	2841	product(intx, QueuedAllocationWarningCount, 0, \
duke@435	2842	"Number of times an allocation that queues behind a GC " \
duke@435	2843	"will retry before printing a warning") \
duke@435	2844	\
duke@435	2845	diagnostic(uintx, VerifyGCStartAt, 0, \
duke@435	2846	"GC invoke count where +VerifyBefore/AfterGC kicks in") \
duke@435	2847	\
duke@435	2848	diagnostic(intx, VerifyGCLevel, 0, \
duke@435	2849	"Generation level at which to start +VerifyBefore/AfterGC") \
duke@435	2850	\
duke@435	2851	develop(uintx, ExitAfterGCNum, 0, \
duke@435	2852	"If non-zero, exit after this GC.") \
duke@435	2853	\
duke@435	2854	product(intx, MaxTenuringThreshold, 15, \
duke@435	2855	"Maximum value for tenuring threshold") \
duke@435	2856	\
duke@435	2857	product(intx, InitialTenuringThreshold, 7, \
duke@435	2858	"Initial value for tenuring threshold") \
duke@435	2859	\
duke@435	2860	product(intx, TargetSurvivorRatio, 50, \
duke@435	2861	"Desired percentage of survivor space used after scavenge") \
duke@435	2862	\
jcoomes@873	2863	product(uintx, MarkSweepDeadRatio, 5, \
duke@435	2864	"Percentage (0-100) of the old gen allowed as dead wood." \
duke@435	2865	"Serial mark sweep treats this as both the min and max value." \
duke@435	2866	"CMS uses this value only if it falls back to mark sweep." \
duke@435	2867	"Par compact uses a variable scale based on the density of the" \
duke@435	2868	"generation and treats this as the max value when the heap is" \
duke@435	2869	"either completely full or completely empty. Par compact also" \
duke@435	2870	"has a smaller default value; see arguments.cpp.") \
duke@435	2871	\
jcoomes@873	2872	product(uintx, PermMarkSweepDeadRatio, 20, \
duke@435	2873	"Percentage (0-100) of the perm gen allowed as dead wood." \
duke@435	2874	"See MarkSweepDeadRatio for collector-specific comments.") \
duke@435	2875	\
duke@435	2876	product(intx, MarkSweepAlwaysCompactCount, 4, \
duke@435	2877	"How often should we fully compact the heap (ignoring the dead " \
duke@435	2878	"space parameters)") \
duke@435	2879	\
duke@435	2880	product(intx, PrintCMSStatistics, 0, \
duke@435	2881	"Statistics for CMS") \
duke@435	2882	\
duke@435	2883	product(bool, PrintCMSInitiationStatistics, false, \
duke@435	2884	"Statistics for initiating a CMS collection") \
duke@435	2885	\
duke@435	2886	product(intx, PrintFLSStatistics, 0, \
duke@435	2887	"Statistics for CMS' FreeListSpace") \
duke@435	2888	\
duke@435	2889	product(intx, PrintFLSCensus, 0, \
duke@435	2890	"Census for CMS' FreeListSpace") \
duke@435	2891	\
duke@435	2892	develop(uintx, GCExpandToAllocateDelayMillis, 0, \
duke@435	2893	"Delay in ms between expansion and allocation") \
duke@435	2894	\
duke@435	2895	product(intx, DeferThrSuspendLoopCount, 4000, \
duke@435	2896	"(Unstable) Number of times to iterate in safepoint loop " \
duke@435	2897	" before blocking VM threads ") \
duke@435	2898	\
duke@435	2899	product(intx, DeferPollingPageLoopCount, -1, \
duke@435	2900	"(Unsafe,Unstable) Number of iterations in safepoint loop " \
duke@435	2901	"before changing safepoint polling page to RO ") \
duke@435	2902	\
duke@435	2903	product(intx, SafepointSpinBeforeYield, 2000, "(Unstable)") \
duke@435	2904	\
duke@435	2905	product(bool, UseDepthFirstScavengeOrder, true, \
duke@435	2906	"true: the scavenge order will be depth-first, " \
duke@435	2907	"false: the scavenge order will be breadth-first") \
duke@435	2908	\
duke@435	2909	product(bool, PSChunkLargeArrays, true, \
duke@435	2910	"true: process large arrays in chunks") \
duke@435	2911	\
duke@435	2912	product(uintx, GCDrainStackTargetSize, 64, \
duke@435	2913	"how many entries we'll try to leave on the stack during " \
duke@435	2914	"parallel GC") \
duke@435	2915	\
ysr@777	2916	product(intx, DCQBarrierQueueBufferSize, 256, \
ysr@777	2917	"Number of elements in a dirty card queue buffer") \
ysr@777	2918	\
ysr@777	2919	product(intx, DCQBarrierProcessCompletedThreshold, 5, \
ysr@777	2920	"Number of completed dirty card buffers to trigger processing.") \
ysr@777	2921	\
duke@435	2922	/* stack parameters */ \
duke@435	2923	product_pd(intx, StackYellowPages, \
duke@435	2924	"Number of yellow zone (recoverable overflows) pages") \
duke@435	2925	\
duke@435	2926	product_pd(intx, StackRedPages, \
duke@435	2927	"Number of red zone (unrecoverable overflows) pages") \
duke@435	2928	\
duke@435	2929	product_pd(intx, StackShadowPages, \
duke@435	2930	"Number of shadow zone (for overflow checking) pages" \
duke@435	2931	" this should exceed the depth of the VM and native call stack") \
duke@435	2932	\
duke@435	2933	product_pd(intx, ThreadStackSize, \
duke@435	2934	"Thread Stack Size (in Kbytes)") \
duke@435	2935	\
duke@435	2936	product_pd(intx, VMThreadStackSize, \
duke@435	2937	"Non-Java Thread Stack Size (in Kbytes)") \
duke@435	2938	\
duke@435	2939	product_pd(intx, CompilerThreadStackSize, \
duke@435	2940	"Compiler Thread Stack Size (in Kbytes)") \
duke@435	2941	\
duke@435	2942	develop_pd(uintx, JVMInvokeMethodSlack, \
duke@435	2943	"Stack space (bytes) required for JVM_InvokeMethod to complete") \
duke@435	2944	\
duke@435	2945	product(uintx, ThreadSafetyMargin, 50*M, \
duke@435	2946	"Thread safety margin is used on fixed-stack LinuxThreads (on " \
duke@435	2947	"Linux/x86 only) to prevent heap-stack collision. Set to 0 to " \
duke@435	2948	"disable this feature") \
duke@435	2949	\
duke@435	2950	/* code cache parameters */ \
duke@435	2951	develop(uintx, CodeCacheSegmentSize, 64, \
duke@435	2952	"Code cache segment size (in bytes) - smallest unit of " \
duke@435	2953	"allocation") \
duke@435	2954	\
duke@435	2955	develop_pd(intx, CodeEntryAlignment, \
duke@435	2956	"Code entry alignment for generated code (in bytes)") \
duke@435	2957	\
duke@435	2958	product_pd(uintx, InitialCodeCacheSize, \
duke@435	2959	"Initial code cache size (in bytes)") \
duke@435	2960	\
duke@435	2961	product_pd(uintx, ReservedCodeCacheSize, \
duke@435	2962	"Reserved code cache size (in bytes) - maximum code cache size") \
duke@435	2963	\
duke@435	2964	product(uintx, CodeCacheMinimumFreeSpace, 500*K, \
duke@435	2965	"When less than X space left, we stop compiling.") \
duke@435	2966	\
duke@435	2967	product_pd(uintx, CodeCacheExpansionSize, \
duke@435	2968	"Code cache expansion size (in bytes)") \
duke@435	2969	\
duke@435	2970	develop_pd(uintx, CodeCacheMinBlockLength, \
duke@435	2971	"Minimum number of segments in a code cache block.") \
duke@435	2972	\
duke@435	2973	notproduct(bool, ExitOnFullCodeCache, false, \
duke@435	2974	"Exit the VM if we fill the code cache.") \
duke@435	2975	\
duke@435	2976	/* interpreter debugging */ \
duke@435	2977	develop(intx, BinarySwitchThreshold, 5, \
duke@435	2978	"Minimal number of lookupswitch entries for rewriting to binary " \
duke@435	2979	"switch") \
duke@435	2980	\
duke@435	2981	develop(intx, StopInterpreterAt, 0, \
duke@435	2982	"Stops interpreter execution at specified bytecode number") \
duke@435	2983	\
duke@435	2984	develop(intx, TraceBytecodesAt, 0, \
duke@435	2985	"Traces bytecodes starting with specified bytecode number") \
duke@435	2986	\
duke@435	2987	/* compiler interface */ \
duke@435	2988	develop(intx, CIStart, 0, \
duke@435	2989	"the id of the first compilation to permit") \
duke@435	2990	\
duke@435	2991	develop(intx, CIStop, -1, \
duke@435	2992	"the id of the last compilation to permit") \
duke@435	2993	\
duke@435	2994	develop(intx, CIStartOSR, 0, \
duke@435	2995	"the id of the first osr compilation to permit " \
duke@435	2996	"(CICountOSR must be on)") \
duke@435	2997	\
duke@435	2998	develop(intx, CIStopOSR, -1, \
duke@435	2999	"the id of the last osr compilation to permit " \
duke@435	3000	"(CICountOSR must be on)") \
duke@435	3001	\
duke@435	3002	develop(intx, CIBreakAtOSR, -1, \
duke@435	3003	"id of osr compilation to break at") \
duke@435	3004	\
duke@435	3005	develop(intx, CIBreakAt, -1, \
duke@435	3006	"id of compilation to break at") \
duke@435	3007	\
duke@435	3008	product(ccstrlist, CompileOnly, "", \
duke@435	3009	"List of methods (pkg/class.name) to restrict compilation to") \
duke@435	3010	\
duke@435	3011	product(ccstr, CompileCommandFile, NULL, \
duke@435	3012	"Read compiler commands from this file [.hotspot_compiler]") \
duke@435	3013	\
duke@435	3014	product(ccstrlist, CompileCommand, "", \
duke@435	3015	"Prepend to .hotspot_compiler; e.g. log,java/lang/String.<init>") \
duke@435	3016	\
duke@435	3017	product(bool, CICompilerCountPerCPU, false, \
duke@435	3018	"1 compiler thread for log(N CPUs)") \
duke@435	3019	\
duke@435	3020	develop(intx, CIFireOOMAt, -1, \
duke@435	3021	"Fire OutOfMemoryErrors throughout CI for testing the compiler " \
duke@435	3022	"(non-negative value throws OOM after this many CI accesses " \
duke@435	3023	"in each compile)") \
duke@435	3024	\
duke@435	3025	develop(intx, CIFireOOMAtDelay, -1, \
duke@435	3026	"Wait for this many CI accesses to occur in all compiles before " \
duke@435	3027	"beginning to throw OutOfMemoryErrors in each compile") \
duke@435	3028	\
duke@435	3029	/* Priorities */ \
duke@435	3030	product_pd(bool, UseThreadPriorities, "Use native thread priorities") \
duke@435	3031	\
duke@435	3032	product(intx, ThreadPriorityPolicy, 0, \
duke@435	3033	"0 : Normal. "\
duke@435	3034	" VM chooses priorities that are appropriate for normal "\
duke@435	3035	" applications. On Solaris NORM_PRIORITY and above are mapped "\
duke@435	3036	" to normal native priority. Java priorities below NORM_PRIORITY"\
duke@435	3037	" map to lower native priority values. On Windows applications"\
duke@435	3038	" are allowed to use higher native priorities. However, with "\
duke@435	3039	" ThreadPriorityPolicy=0, VM will not use the highest possible"\
duke@435	3040	" native priority, THREAD_PRIORITY_TIME_CRITICAL, as it may "\
duke@435	3041	" interfere with system threads. On Linux thread priorities "\
duke@435	3042	" are ignored because the OS does not support static priority "\
duke@435	3043	" in SCHED_OTHER scheduling class which is the only choice for"\
duke@435	3044	" non-root, non-realtime applications. "\
duke@435	3045	"1 : Aggressive. "\
duke@435	3046	" Java thread priorities map over to the entire range of "\
duke@435	3047	" native thread priorities. Higher Java thread priorities map "\
duke@435	3048	" to higher native thread priorities. This policy should be "\
duke@435	3049	" used with care, as sometimes it can cause performance "\
duke@435	3050	" degradation in the application and/or the entire system. On "\
duke@435	3051	" Linux this policy requires root privilege.") \
duke@435	3052	\
duke@435	3053	product(bool, ThreadPriorityVerbose, false, \
duke@435	3054	"print priority changes") \
duke@435	3055	\
duke@435	3056	product(intx, DefaultThreadPriority, -1, \
duke@435	3057	"what native priority threads run at if not specified elsewhere (-1 means no change)") \
duke@435	3058	\
duke@435	3059	product(intx, CompilerThreadPriority, -1, \
duke@435	3060	"what priority should compiler threads run at (-1 means no change)") \
duke@435	3061	\
duke@435	3062	product(intx, VMThreadPriority, -1, \
duke@435	3063	"what priority should VM threads run at (-1 means no change)") \
duke@435	3064	\
duke@435	3065	product(bool, CompilerThreadHintNoPreempt, true, \
duke@435	3066	"(Solaris only) Give compiler threads an extra quanta") \
duke@435	3067	\
duke@435	3068	product(bool, VMThreadHintNoPreempt, false, \
duke@435	3069	"(Solaris only) Give VM thread an extra quanta") \
duke@435	3070	\
duke@435	3071	product(intx, JavaPriority1_To_OSPriority, -1, "Map Java priorities to OS priorities") \
duke@435	3072	product(intx, JavaPriority2_To_OSPriority, -1, "Map Java priorities to OS priorities") \
duke@435	3073	product(intx, JavaPriority3_To_OSPriority, -1, "Map Java priorities to OS priorities") \
duke@435	3074	product(intx, JavaPriority4_To_OSPriority, -1, "Map Java priorities to OS priorities") \
duke@435	3075	product(intx, JavaPriority5_To_OSPriority, -1, "Map Java priorities to OS priorities") \
duke@435	3076	product(intx, JavaPriority6_To_OSPriority, -1, "Map Java priorities to OS priorities") \
duke@435	3077	product(intx, JavaPriority7_To_OSPriority, -1, "Map Java priorities to OS priorities") \
duke@435	3078	product(intx, JavaPriority8_To_OSPriority, -1, "Map Java priorities to OS priorities") \
duke@435	3079	product(intx, JavaPriority9_To_OSPriority, -1, "Map Java priorities to OS priorities") \
duke@435	3080	product(intx, JavaPriority10_To_OSPriority,-1, "Map Java priorities to OS priorities") \
duke@435	3081	\
duke@435	3082	/* compiler debugging */ \
duke@435	3083	notproduct(intx, CompileTheWorldStartAt, 1, \
duke@435	3084	"First class to consider when using +CompileTheWorld") \
duke@435	3085	\
duke@435	3086	notproduct(intx, CompileTheWorldStopAt, max_jint, \
duke@435	3087	"Last class to consider when using +CompileTheWorld") \
duke@435	3088	\
duke@435	3089	develop(intx, NewCodeParameter, 0, \
duke@435	3090	"Testing Only: Create a dedicated integer parameter before " \
duke@435	3091	"putback") \
duke@435	3092	\
duke@435	3093	/* new oopmap storage allocation */ \
duke@435	3094	develop(intx, MinOopMapAllocation, 8, \
duke@435	3095	"Minimum number of OopMap entries in an OopMapSet") \
duke@435	3096	\
duke@435	3097	/* Background Compilation */ \
duke@435	3098	develop(intx, LongCompileThreshold, 50, \
duke@435	3099	"Used with +TraceLongCompiles") \
duke@435	3100	\
duke@435	3101	product(intx, StarvationMonitorInterval, 200, \
duke@435	3102	"Pause between each check in ms") \
duke@435	3103	\
duke@435	3104	/* recompilation */ \
duke@435	3105	product_pd(intx, CompileThreshold, \
duke@435	3106	"number of interpreted method invocations before (re-)compiling") \
duke@435	3107	\
duke@435	3108	product_pd(intx, BackEdgeThreshold, \
duke@435	3109	"Interpreter Back edge threshold at which an OSR compilation is invoked")\
duke@435	3110	\
duke@435	3111	product(intx, Tier1BytecodeLimit, 10, \
duke@435	3112	"Must have at least this many bytecodes before tier1" \
duke@435	3113	"invocation counters are used") \
duke@435	3114	\
duke@435	3115	product_pd(intx, Tier2CompileThreshold, \
duke@435	3116	"threshold at which a tier 2 compilation is invoked") \
duke@435	3117	\
duke@435	3118	product_pd(intx, Tier2BackEdgeThreshold, \
duke@435	3119	"Back edge threshold at which a tier 2 compilation is invoked") \
duke@435	3120	\
duke@435	3121	product_pd(intx, Tier3CompileThreshold, \
duke@435	3122	"threshold at which a tier 3 compilation is invoked") \
duke@435	3123	\
duke@435	3124	product_pd(intx, Tier3BackEdgeThreshold, \
duke@435	3125	"Back edge threshold at which a tier 3 compilation is invoked") \
duke@435	3126	\
duke@435	3127	product_pd(intx, Tier4CompileThreshold, \
duke@435	3128	"threshold at which a tier 4 compilation is invoked") \
duke@435	3129	\
duke@435	3130	product_pd(intx, Tier4BackEdgeThreshold, \
duke@435	3131	"Back edge threshold at which a tier 4 compilation is invoked") \
duke@435	3132	\
duke@435	3133	product_pd(bool, TieredCompilation, \
duke@435	3134	"Enable two-tier compilation") \
duke@435	3135	\
duke@435	3136	product(bool, StressTieredRuntime, false, \
duke@435	3137	"Alternate client and server compiler on compile requests") \
duke@435	3138	\
duke@435	3139	product_pd(intx, OnStackReplacePercentage, \
duke@435	3140	"NON_TIERED number of method invocations/branches (expressed as %"\
duke@435	3141	"of CompileThreshold) before (re-)compiling OSR code") \
duke@435	3142	\
duke@435	3143	product(intx, InterpreterProfilePercentage, 33, \
duke@435	3144	"NON_TIERED number of method invocations/branches (expressed as %"\
duke@435	3145	"of CompileThreshold) before profiling in the interpreter") \
duke@435	3146	\
duke@435	3147	develop(intx, MaxRecompilationSearchLength, 10, \
duke@435	3148	"max. # frames to inspect searching for recompilee") \
duke@435	3149	\
duke@435	3150	develop(intx, MaxInterpretedSearchLength, 3, \
duke@435	3151	"max. # interp. frames to skip when searching for recompilee") \
duke@435	3152	\
duke@435	3153	develop(intx, DesiredMethodLimit, 8000, \
duke@435	3154	"desired max. method size (in bytecodes) after inlining") \
duke@435	3155	\
duke@435	3156	develop(intx, HugeMethodLimit, 8000, \
duke@435	3157	"don't compile methods larger than this if " \
duke@435	3158	"+DontCompileHugeMethods") \
duke@435	3159	\
duke@435	3160	/* New JDK 1.4 reflection implementation */ \
duke@435	3161	\
duke@435	3162	develop(bool, UseNewReflection, true, \
duke@435	3163	"Temporary flag for transition to reflection based on dynamic " \
duke@435	3164	"bytecode generation in 1.4; can no longer be turned off in 1.4 " \
duke@435	3165	"JDK, and is unneeded in 1.3 JDK, but marks most places VM " \
duke@435	3166	"changes were needed") \
duke@435	3167	\
duke@435	3168	develop(bool, VerifyReflectionBytecodes, false, \
duke@435	3169	"Force verification of 1.4 reflection bytecodes. Does not work " \
duke@435	3170	"in situations like that described in 4486457 or for " \
duke@435	3171	"constructors generated for serialization, so can not be enabled "\
duke@435	3172	"in product.") \
duke@435	3173	\
duke@435	3174	product(bool, ReflectionWrapResolutionErrors, true, \
duke@435	3175	"Temporary flag for transition to AbstractMethodError wrapped " \
duke@435	3176	"in InvocationTargetException. See 6531596") \
duke@435	3177	\
duke@435	3178	\
duke@435	3179	develop(intx, FastSuperclassLimit, 8, \
duke@435	3180	"Depth of hardwired instanceof accelerator array") \
duke@435	3181	\
duke@435	3182	/* Properties for Java libraries */ \
duke@435	3183	\
duke@435	3184	product(intx, MaxDirectMemorySize, -1, \
duke@435	3185	"Maximum total size of NIO direct-buffer allocations") \
duke@435	3186	\
duke@435	3187	/* temporary developer defined flags */ \
duke@435	3188	\
duke@435	3189	diagnostic(bool, UseNewCode, false, \
duke@435	3190	"Testing Only: Use the new version while testing") \
duke@435	3191	\
duke@435	3192	diagnostic(bool, UseNewCode2, false, \
duke@435	3193	"Testing Only: Use the new version while testing") \
duke@435	3194	\
duke@435	3195	diagnostic(bool, UseNewCode3, false, \
duke@435	3196	"Testing Only: Use the new version while testing") \
duke@435	3197	\
duke@435	3198	/* flags for performance data collection */ \
duke@435	3199	\
duke@435	3200	product(bool, UsePerfData, true, \
duke@435	3201	"Flag to disable jvmstat instrumentation for performance testing" \
duke@435	3202	"and problem isolation purposes.") \
duke@435	3203	\
duke@435	3204	product(bool, PerfDataSaveToFile, false, \
duke@435	3205	"Save PerfData memory to hsperfdata_<pid> file on exit") \
duke@435	3206	\
duke@435	3207	product(ccstr, PerfDataSaveFile, NULL, \
duke@435	3208	"Save PerfData memory to the specified absolute pathname," \
duke@435	3209	"%p in the file name if present will be replaced by pid") \
duke@435	3210	\
duke@435	3211	product(intx, PerfDataSamplingInterval, 50 /*ms*/, \
duke@435	3212	"Data sampling interval in milliseconds") \
duke@435	3213	\
duke@435	3214	develop(bool, PerfTraceDataCreation, false, \
duke@435	3215	"Trace creation of Performance Data Entries") \
duke@435	3216	\
duke@435	3217	develop(bool, PerfTraceMemOps, false, \
duke@435	3218	"Trace PerfMemory create/attach/detach calls") \
duke@435	3219	\
duke@435	3220	product(bool, PerfDisableSharedMem, false, \
duke@435	3221	"Store performance data in standard memory") \
duke@435	3222	\
duke@435	3223	product(intx, PerfDataMemorySize, 32*K, \
duke@435	3224	"Size of performance data memory region. Will be rounded " \
duke@435	3225	"up to a multiple of the native os page size.") \
duke@435	3226	\
duke@435	3227	product(intx, PerfMaxStringConstLength, 1024, \
duke@435	3228	"Maximum PerfStringConstant string length before truncation") \
duke@435	3229	\
duke@435	3230	product(bool, PerfAllowAtExitRegistration, false, \
duke@435	3231	"Allow registration of atexit() methods") \
duke@435	3232	\
duke@435	3233	product(bool, PerfBypassFileSystemCheck, false, \
duke@435	3234	"Bypass Win32 file system criteria checks (Windows Only)") \
duke@435	3235	\
duke@435	3236	product(intx, UnguardOnExecutionViolation, 0, \
duke@435	3237	"Unguard page and retry on no-execute fault (Win32 only)" \
duke@435	3238	"0=off, 1=conservative, 2=aggressive") \
duke@435	3239	\
duke@435	3240	/* Serviceability Support */ \
duke@435	3241	\
duke@435	3242	product(bool, ManagementServer, false, \
duke@435	3243	"Create JMX Management Server") \
duke@435	3244	\
duke@435	3245	product(bool, DisableAttachMechanism, false, \
duke@435	3246	"Disable mechanism that allows tools to attach to this VM") \
duke@435	3247	\
duke@435	3248	product(bool, StartAttachListener, false, \
duke@435	3249	"Always start Attach Listener at VM startup") \
duke@435	3250	\
duke@435	3251	manageable(bool, PrintConcurrentLocks, false, \
duke@435	3252	"Print java.util.concurrent locks in thread dump") \
duke@435	3253	\
duke@435	3254	/* Shared spaces */ \
duke@435	3255	\
duke@435	3256	product(bool, UseSharedSpaces, true, \
duke@435	3257	"Use shared spaces in the permanent generation") \
duke@435	3258	\
duke@435	3259	product(bool, RequireSharedSpaces, false, \
duke@435	3260	"Require shared spaces in the permanent generation") \
duke@435	3261	\
duke@435	3262	product(bool, ForceSharedSpaces, false, \
duke@435	3263	"Require shared spaces in the permanent generation") \
duke@435	3264	\
duke@435	3265	product(bool, DumpSharedSpaces, false, \
duke@435	3266	"Special mode: JVM reads a class list, loads classes, builds " \
duke@435	3267	"shared spaces, and dumps the shared spaces to a file to be " \
duke@435	3268	"used in future JVM runs.") \
duke@435	3269	\
duke@435	3270	product(bool, PrintSharedSpaces, false, \
duke@435	3271	"Print usage of shared spaces") \
duke@435	3272	\
duke@435	3273	product(uintx, SharedDummyBlockSize, 512*M, \
duke@435	3274	"Size of dummy block used to shift heap addresses (in bytes)") \
duke@435	3275	\
duke@435	3276	product(uintx, SharedReadWriteSize, 12*M, \
duke@435	3277	"Size of read-write space in permanent generation (in bytes)") \
duke@435	3278	\
duke@435	3279	product(uintx, SharedReadOnlySize, 8*M, \
duke@435	3280	"Size of read-only space in permanent generation (in bytes)") \
duke@435	3281	\
duke@435	3282	product(uintx, SharedMiscDataSize, 4*M, \
duke@435	3283	"Size of the shared data area adjacent to the heap (in bytes)") \
duke@435	3284	\
duke@435	3285	product(uintx, SharedMiscCodeSize, 4*M, \
duke@435	3286	"Size of the shared code area adjacent to the heap (in bytes)") \
duke@435	3287	\
duke@435	3288	diagnostic(bool, SharedOptimizeColdStart, true, \
duke@435	3289	"At dump time, order shared objects to achieve better " \
duke@435	3290	"cold startup time.") \
duke@435	3291	\
duke@435	3292	develop(intx, SharedOptimizeColdStartPolicy, 2, \
duke@435	3293	"Reordering policy for SharedOptimizeColdStart " \
duke@435	3294	"0=favor classload-time locality, 1=balanced, " \
duke@435	3295	"2=favor runtime locality") \
duke@435	3296	\
duke@435	3297	diagnostic(bool, SharedSkipVerify, false, \
duke@435	3298	"Skip assert() and verify() which page-in unwanted shared " \
duke@435	3299	"objects. ") \
duke@435	3300	\
jrose@866	3301	product(bool, AnonymousClasses, false, \
jrose@866	3302	"support sun.misc.Unsafe.defineAnonymousClass") \
jrose@866	3303	\
duke@435	3304	product(bool, TaggedStackInterpreter, false, \
duke@435	3305	"Insert tags in interpreter execution stack for oopmap generaion")\
duke@435	3306	\
duke@435	3307	diagnostic(bool, PauseAtStartup, false, \
duke@435	3308	"Causes the VM to pause at startup time and wait for the pause " \
duke@435	3309	"file to be removed (default: ./vm.paused.<pid>)") \
duke@435	3310	\
duke@435	3311	diagnostic(ccstr, PauseAtStartupFile, NULL, \
duke@435	3312	"The file to create and for whose removal to await when pausing " \
duke@435	3313	"at startup. (default: ./vm.paused.<pid>)") \
duke@435	3314	\
duke@435	3315	product(bool, ExtendedDTraceProbes, false, \
duke@435	3316	"Enable performance-impacting dtrace probes") \
duke@435	3317	\
duke@435	3318	product(bool, DTraceMethodProbes, false, \
duke@435	3319	"Enable dtrace probes for method-entry and method-exit") \
duke@435	3320	\
duke@435	3321	product(bool, DTraceAllocProbes, false, \
duke@435	3322	"Enable dtrace probes for object allocation") \
duke@435	3323	\
duke@435	3324	product(bool, DTraceMonitorProbes, false, \
duke@435	3325	"Enable dtrace probes for monitor events") \
duke@435	3326	\
duke@435	3327	product(bool, RelaxAccessControlCheck, false, \
duke@435	3328	"Relax the access control checks in the verifier") \
duke@435	3329	\
kamg@551	3330	diagnostic(bool, PrintDTraceDOF, false, \
kamg@551	3331	"Print the DTrace DOF passed to the system for JSDT probes") \
kamg@551	3332	\
xlu@884	3333	product(bool, UseVMInterruptibleIO, false, \
duke@435	3334	"(Unstable, Solaris-specific) Thread interrupt before or with " \
xlu@884	3335	"EINTR for I/O operations results in OS_INTRPT. The default value"\
xlu@884	3336	" of this flag is true for JDK 6 and earliers")
duke@435	3337
duke@435	3338
duke@435	3339	/*
duke@435	3340	* Macros for factoring of globals
duke@435	3341	*/
duke@435	3342
duke@435	3343	// Interface macros
duke@435	3344	#define DECLARE_PRODUCT_FLAG(type, name, value, doc) extern "C" type name;
duke@435	3345	#define DECLARE_PD_PRODUCT_FLAG(type, name, doc) extern "C" type name;
duke@435	3346	#define DECLARE_DIAGNOSTIC_FLAG(type, name, value, doc) extern "C" type name;
ysr@785	3347	#define DECLARE_EXPERIMENTAL_FLAG(type, name, value, doc) extern "C" type name;
duke@435	3348	#define DECLARE_MANAGEABLE_FLAG(type, name, value, doc) extern "C" type name;
duke@435	3349	#define DECLARE_PRODUCT_RW_FLAG(type, name, value, doc) extern "C" type name;
duke@435	3350	#ifdef PRODUCT
duke@435	3351	#define DECLARE_DEVELOPER_FLAG(type, name, value, doc) const type name = value;
duke@435	3352	#define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) const type name = pd_##name;
duke@435	3353	#define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc)
duke@435	3354	#else
duke@435	3355	#define DECLARE_DEVELOPER_FLAG(type, name, value, doc) extern "C" type name;
duke@435	3356	#define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) extern "C" type name;
duke@435	3357	#define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) extern "C" type name;
duke@435	3358	#endif
coleenp@548	3359	// Special LP64 flags, product only needed for now.
coleenp@548	3360	#ifdef _LP64
coleenp@548	3361	#define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) extern "C" type name;
coleenp@548	3362	#else
coleenp@548	3363	#define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) const type name = value;
coleenp@548	3364	#endif // _LP64
duke@435	3365
duke@435	3366	// Implementation macros
duke@435	3367	#define MATERIALIZE_PRODUCT_FLAG(type, name, value, doc) type name = value;
duke@435	3368	#define MATERIALIZE_PD_PRODUCT_FLAG(type, name, doc) type name = pd_##name;
duke@435	3369	#define MATERIALIZE_DIAGNOSTIC_FLAG(type, name, value, doc) type name = value;
ysr@785	3370	#define MATERIALIZE_EXPERIMENTAL_FLAG(type, name, value, doc) type name = value;
duke@435	3371	#define MATERIALIZE_MANAGEABLE_FLAG(type, name, value, doc) type name = value;
duke@435	3372	#define MATERIALIZE_PRODUCT_RW_FLAG(type, name, value, doc) type name = value;
duke@435	3373	#ifdef PRODUCT
duke@435	3374	#define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) /* flag name is constant */
duke@435	3375	#define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) /* flag name is constant */
duke@435	3376	#define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc)
duke@435	3377	#else
duke@435	3378	#define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) type name = value;
duke@435	3379	#define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) type name = pd_##name;
duke@435	3380	#define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) type name = value;
duke@435	3381	#endif
coleenp@548	3382	#ifdef _LP64
coleenp@548	3383	#define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) type name = value;
coleenp@548	3384	#else
coleenp@548	3385	#define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) /* flag is constant */
coleenp@548	3386	#endif // _LP64
duke@435	3387
ysr@785	3388	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	3389
duke@435	3390	RUNTIME_OS_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_NOTPRODUCT_FLAG)