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J9Options.cpp
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/*******************************************************************************
* Copyright (c) 2000, 2021 IBM Corp. and others
*
* This program and the accompanying materials are made available under
* the terms of the Eclipse Public License 2.0 which accompanies this
* distribution and is available at https://www.eclipse.org/legal/epl-2.0/
* or the Apache License, Version 2.0 which accompanies this distribution and
* is available at https://www.apache.org/licenses/LICENSE-2.0.
*
* This Source Code may also be made available under the following
* Secondary Licenses when the conditions for such availability set
* forth in the Eclipse Public License, v. 2.0 are satisfied: GNU
* General Public License, version 2 with the GNU Classpath
* Exception [1] and GNU General Public License, version 2 with the
* OpenJDK Assembly Exception [2].
*
* [1] https://www.gnu.org/software/classpath/license.html
* [2] http://openjdk.java.net/legal/assembly-exception.html
*
* SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 OR LicenseRef-GPL-2.0 WITH Assembly-exception
*******************************************************************************/
#include "control/J9Options.hpp"
#include <algorithm>
#if defined(J9VM_OPT_JITSERVER)
#include <random>
#endif /* defined(J9VM_OPT_JITSERVER) */
#include <ctype.h>
#include <stdint.h>
#include "jitprotos.h"
#include "j2sever.h"
#include "j9.h"
#include "j9cfg.h"
#include "j9modron.h"
#include "jvminit.h"
#if defined(J9VM_OPT_JITSERVER)
#include "j9vmnls.h"
#include "omrformatconsts.h"
#endif /* defined(J9VM_OPT_JITSERVER) */
#include "codegen/CodeGenerator.hpp"
#include "compile/Compilation.hpp"
#include "control/Recompilation.hpp"
#include "control/RecompilationInfo.hpp"
#include "env/CompilerEnv.hpp"
#include "env/IO.hpp"
#include "env/VMJ9.h"
#include "env/VerboseLog.hpp"
#include "env/jittypes.h"
#include "infra/SimpleRegex.hpp"
#include "control/CompilationRuntime.hpp"
#include "control/CompilationThread.hpp"
#include "runtime/IProfiler.hpp"
#if defined(J9VM_OPT_JITSERVER)
#include "env/j9methodServer.hpp"
#include "control/JITServerCompilationThread.hpp"
#endif /* defined(J9VM_OPT_JITSERVER) */
#if defined(J9VM_OPT_SHARED_CLASSES)
#include "j9jitnls.h"
#endif
#define SET_OPTION_BIT(x) TR::Options::setBit, offsetof(OMR::Options,_options[(x)&TR_OWM]), ((x)&~TR_OWM)
// For use with TPROF only, disable JVMPI hooks even if -Xrun is specified.
// The only hook that is required is J9HOOK_COMPILED_METHOD_LOAD.
//
bool enableCompiledMethodLoadHookOnly = false;
// -----------------------------------------------------------------------------
// Static data initialization
// -----------------------------------------------------------------------------
bool J9::Options::_doNotProcessEnvVars = false; // set through XX options in Java
bool J9::Options::_reportByteCodeInfoAtCatchBlock = false;
int32_t J9::Options::_samplingFrequencyInIdleMode = 1000; // ms
#if defined(J9VM_OPT_JITSERVER)
int32_t J9::Options::_statisticsFrequency = 0; // ms
uint32_t J9::Options::_compilationSequenceNumber = 0;
static const size_t JITSERVER_LOG_FILENAME_MAX_SIZE = 1025;
#endif /* defined(J9VM_OPT_JITSERVER) */
int32_t J9::Options::_samplingFrequencyInDeepIdleMode = 100000; // ms
int32_t J9::Options::_resetCountThreshold = 0; // Disable the feature
int32_t J9::Options::_scorchingSampleThreshold = 240;
int32_t J9::Options::_conservativeScorchingSampleThreshold = 80; // used when many CPUs (> _upperBoundNumProc)
int32_t J9::Options::_upperBoundNumProcForScaling = 64; // used for scaling _scorchingSampleThreshold based on numProc
int32_t J9::Options::_lowerBoundNumProcForScaling = 8; // used for scaling _scorchingSampleThreshold based on numProd]c
int32_t J9::Options::_veryHotSampleThreshold = 480;
int32_t J9::Options::_relaxedCompilationLimitsSampleThreshold = 120; // normally should be lower than the scorchingSampleThreshold
int32_t J9::Options::_sampleThresholdVariationAllowance = 30;
int32_t J9::Options::_maxCheckcastProfiledClassTests = 3;
int32_t J9::Options::_maxOnsiteCacheSlotForInstanceOf = 0; // Setting this value to zero will disable onsite cache in instanceof.
int32_t J9::Options::_cpuEntitlementForConservativeScorching = 801; // 801 means more than 800%, i.e. 8 cpus
// A very large number disables the feature
int32_t J9::Options::_sampleHeartbeatInterval = 10;
int32_t J9::Options::_sampleDontSwitchToProfilingThreshold = 3000; // default=1% use large value to disable// To be tuned
int32_t J9::Options::_stackSize = 1024;
int32_t J9::Options::_profilerStackSize = 128;
int32_t J9::Options::_smallMethodBytecodeSizeThreshold = 0;
int32_t J9::Options::_smallMethodBytecodeSizeThresholdForCold = -1; // -1 means not set (or disabled)
int32_t J9::Options::_countForMethodsCompiledDuringStartup = 10;
int32_t J9::Options::_countForLoopyBootstrapMethods = -1; // -1 means feature disabled
int32_t J9::Options::_countForLooplessBootstrapMethods = -1; // -1 means feature disabled
TR::SimpleRegex *J9::Options::_jniAccelerator = NULL;
int32_t J9::Options::_classLoadingPhaseInterval = 500; // ms
int32_t J9::Options::_experimentalClassLoadPhaseInterval = 40;
int32_t J9::Options::_classLoadingPhaseThreshold = 155; // classes per second
int32_t J9::Options::_classLoadingPhaseVariance = 70; // percentage 0..99
int32_t J9::Options::_classLoadingRateAverage = 800; // classes per second
int32_t J9::Options::_secondaryClassLoadingPhaseThreshold = 10000;
int32_t J9::Options::_numClassLoadPhaseQuiesceIntervals = 1;
int32_t J9::Options::_userClassLoadingPhaseThreshold = 5;
bool J9::Options::_userClassLoadingPhase = false;
int32_t J9::Options::_bigAppSampleThresholdAdjust = 3; //amount to shift the hot and scorching threshold
int32_t J9::Options::_availableCPUPercentage = 100;
int32_t J9::Options::_cpuCompTimeExpensiveThreshold = 4000;
uintptr_t J9::Options::_compThreadAffinityMask = 0;
#if defined(J9VM_OPT_JITSERVER)
int64_t J9::Options::_oldAge = 1000*60*1000; // 1000 minutes
int64_t J9::Options::_oldAgeUnderLowMemory = 1000*60*5; // 5 minute
int64_t J9::Options::_timeBetweenPurges = 1000*60*1; // 1 minute
bool J9::Options::_shareROMClasses = false;
int32_t J9::Options::_sharedROMClassCacheNumPartitions = 16;
int32_t J9::Options::_highActiveThreadThreshold = -1;
int32_t J9::Options::_veryHighActiveThreadThreshold = -1;
#endif /* defined(J9VM_OPT_JITSERVER) */
int32_t J9::Options::_interpreterSamplingThreshold = 300;
int32_t J9::Options::_interpreterSamplingDivisor = TR_DEFAULT_INTERPRETER_SAMPLING_DIVISOR;
int32_t J9::Options::_interpreterSamplingThresholdInStartupMode = TR_DEFAULT_INITIAL_BCOUNT; // 3000
int32_t J9::Options::_interpreterSamplingThresholdInJSR292 = TR_DEFAULT_INITIAL_COUNT - 2; // Run stuff twice before getting too excited about interpreter ticks
int32_t J9::Options::_activeThreadsThreshold = 0; // -1 means 'determine dynamically', 0 means feature disabled
int32_t J9::Options::_samplingThreadExpirationTime = -1;
int32_t J9::Options::_compilationExpirationTime = -1;
int32_t J9::Options::_minSamplingPeriod = 10; // ms
int32_t J9::Options::_compilationBudget = 0; // ms; 0 means disabled
int32_t J9::Options::_catchSamplingSizeThreshold = -1; // measured in nodes; -1 means not initialized
int32_t J9::Options::_compilationThreadPriorityCode = 4; // these codes are converted into
// priorities in startCompilationThread
int32_t J9::Options::_disableIProfilerClassUnloadThreshold = 20000;// The usefulness of IProfiling is questionable at this point
int32_t J9::Options::_iprofilerReactivateThreshold=10;
int32_t J9::Options::_iprofilerIntToTotalSampleRatio=2;
int32_t J9::Options::_iprofilerSamplesBeforeTurningOff = 1000000; // samples
int32_t J9::Options::_iprofilerNumOutstandingBuffers = 10;
int32_t J9::Options::_iprofilerBufferMaxPercentageToDiscard = 0;
int32_t J9::Options::_iProfilerBufferInterarrivalTimeToExitDeepIdle = 5000; // 5 seconds
int32_t J9::Options::_iprofilerBufferSize = 1024;
#ifdef TR_HOST_64BIT
int32_t J9::Options::_iProfilerMemoryConsumptionLimit=32*1024*1024;
#else
int32_t J9::Options::_iProfilerMemoryConsumptionLimit=18*1024*1024;
#endif
int32_t J9::Options::_IprofilerOffSubtractionFactor = 500;
int32_t J9::Options::_IprofilerOffDivisionFactor = 16;
int32_t J9::Options::_maxIprofilingCount = TR_DEFAULT_INITIAL_COUNT; // 3000
int32_t J9::Options::_maxIprofilingCountInStartupMode = TR_QUICKSTART_INITIAL_COUNT; // 1000
int32_t J9::Options::_iprofilerFailRateThreshold = 70; // percent 1-100
int32_t J9::Options::_iprofilerFailHistorySize = 10; // percent 1-100
int32_t J9::Options::_compYieldStatsThreshold = 1000; // usec
int32_t J9::Options::_compYieldStatsHeartbeatPeriod = 0; // ms
int32_t J9::Options::_numberOfUserClassesLoaded = 0;
int32_t J9::Options::_compPriorityQSZThreshold = 200;
int32_t J9::Options::_numQueuedInvReqToDowngradeOptLevel = 20; // If more than 20 inv req are queued we compiled them at cold
int32_t J9::Options::_qszThresholdToDowngradeOptLevel = -1; // not yet set
int32_t J9::Options::_qsziThresholdToDowngradeDuringCLP = 0; // -1 or 0 disables the feature and reverts to old behavior
int32_t J9::Options::_qszThresholdToDowngradeOptLevelDuringStartup = 100000; // a large number disables the feature
int32_t J9::Options::_cpuUtilThresholdForStarvation = 25; // 25%
// If too many GCR are queued we stop counting.
// Use a large value to disable the feature. 400 is a good default
// Don't use a value smaller than GCR_HYSTERESIS==100
int32_t J9::Options::_GCRQueuedThresholdForCounting = 1000000; // 400;
int32_t J9::Options::_minimumSuperclassArraySize = 5;
int32_t J9::Options::_TLHPrefetchSize = 0;
int32_t J9::Options::_TLHPrefetchLineSize = 0;
int32_t J9::Options::_TLHPrefetchLineCount = 0;
int32_t J9::Options::_TLHPrefetchStaggeredLineCount = 0;
int32_t J9::Options::_TLHPrefetchBoundaryLineCount = 0;
int32_t J9::Options::_TLHPrefetchTLHEndLineCount = 0;
int32_t J9::Options::_numFirstTimeCompilationsToExitIdleMode = 25; // Use a large number to disable the feature
int32_t J9::Options::_waitTimeToEnterIdleMode = 5000; // ms
int32_t J9::Options::_waitTimeToEnterDeepIdleMode = 50000; // ms
int32_t J9::Options::_waitTimeToExitStartupMode = DEFAULT_WAIT_TIME_TO_EXIT_STARTUP_MODE; // ms
int32_t J9::Options::_waitTimeToGCR = 10000; // ms
int32_t J9::Options::_waitTimeToStartIProfiler = 1000; // ms
int32_t J9::Options::_compilationDelayTime = 0; // sec; 0 means disabled
int32_t J9::Options::_invocationThresholdToTriggerLowPriComp = 250;
int32_t J9::Options::_aotMethodThreshold = 200;
int32_t J9::Options::_aotMethodCompilesThreshold = 200;
int32_t J9::Options::_aotWarmSCCThreshold = 200;
int32_t J9::Options::_largeTranslationTime = -1; // usec
int32_t J9::Options::_weightOfAOTLoad = 1; // must be between 0 and 256
int32_t J9::Options::_weightOfJSR292 = 12; // must be between 0 and 256
TR_YesNoMaybe J9::Options::_hwProfilerEnabled = TR_maybe;
int32_t J9::Options::_hwprofilerNumOutstandingBuffers = 256; // 1MB / 4KB buffers
// These numbers are cast into floats divided by 10000
uint32_t J9::Options::_hwprofilerWarmOptLevelThreshold = 1; // 0.0001
uint32_t J9::Options::_hwprofilerReducedWarmOptLevelThreshold=0; // 0 ==> upgrade methods with just 1 tick in any given interval
uint32_t J9::Options::_hwprofilerAOTWarmOptLevelThreshold = 10; // 0.001
uint32_t J9::Options::_hwprofilerHotOptLevelThreshold = 100; // 0.01
uint32_t J9::Options::_hwprofilerScorchingOptLevelThreshold = 1250; // 0.125
uint32_t J9::Options::_hwprofilerLastOptLevel = warm; // warm
uint32_t J9::Options::_hwprofilerRecompilationInterval = 10000;
uint32_t J9::Options::_hwprofilerRIBufferThreshold = 50; // process buffer when it is at least 50% full
uint32_t J9::Options::_hwprofilerRIBufferPoolSize = 1 * 1024 * 1024; // 1 MB
int32_t J9::Options::_hwProfilerRIBufferProcessingFrequency= 0; // process buffer every time
int32_t J9::Options::_hwProfilerRecompFrequencyThreshold = 5000; // less than 1 in 5000 will turn RI off
int32_t J9::Options::_hwProfilerRecompDecisionWindow = 5000; // Should be at least as big as _hwProfilerRecompFrequencyThreshold
int32_t J9::Options::_numDowngradesToTurnRION = 250;
int32_t J9::Options::_qszThresholdToTurnRION = 100;
int32_t J9::Options::_qszMaxThresholdToRIDowngrade = 250;
int32_t J9::Options::_qszMinThresholdToRIDowngrade = 50; // should be smaller than _qszMaxThresholdToRIDowngrade
uint32_t J9::Options::_hwprofilerPRISamplingRate = 500000;
int32_t J9::Options::_hwProfilerBufferMaxPercentageToDiscard = 5;
uint32_t J9::Options::_hwProfilerExpirationTime = 0; // ms; 0 means disabled
uint32_t J9::Options::_hwprofilerZRIBufferSize = 4 * 1024; // 4 kb
uint32_t J9::Options::_hwprofilerZRIMode = 0; // cycle based profiling
uint32_t J9::Options::_hwprofilerZRIRGS = 0; // only collect instruction records
uint32_t J9::Options::_hwprofilerZRISF = 10000000;
int32_t J9::Options::_LoopyMethodSubtractionFactor = 500;
int32_t J9::Options::_LoopyMethodDivisionFactor = 16;
int32_t J9::Options::_localCSEFrequencyThreshold = 1000;
int32_t J9::Options::_profileAllTheTime = 0;
int32_t J9::Options::_seriousCompFailureThreshold = 10; // above this threshold we generate a trace point in the Snap file
bool J9::Options::_useCPUsToDetermineMaxNumberOfCompThreadsToActivate = false;
int32_t J9::Options::_numCodeCachesToCreateAtStartup = 0; // 0 means no change from default which is 1
int32_t J9::Options::_dataCacheQuantumSize = 64;
int32_t J9::Options::_dataCacheMinQuanta = 2;
int32_t J9::Options::_updateFreeMemoryMinPeriod = 500; // 500 ms
size_t J9::Options::_scratchSpaceLimitKBWhenLowVirtualMemory = 64*1024; // 64MB; currently, only used on 32 bit Windows
int32_t J9::Options::_scratchSpaceFactorWhenJSR292Workload = JSR292_SCRATCH_SPACE_FACTOR;
int32_t J9::Options::_lowVirtualMemoryMBThreshold = 300; // Used on 32 bit Windows, Linux, 31 bit z/OS, Linux
int32_t J9::Options::_safeReservePhysicalMemoryValue = 32 << 20; // 32 MB
int32_t J9::Options::_numDLTBufferMatchesToEagerlyIssueCompReq = 8; //a value of 1 or less disables the DLT tracking mechanism
int32_t J9::Options::_dltPostponeThreshold = 2;
int32_t J9::Options::_expensiveCompWeight = TR::CompilationInfo::JSR292_WEIGHT;
int32_t J9::Options::_jProfilingEnablementSampleThreshold = 10000;
bool J9::Options::_aggressiveLockReservation = false;
//************************************************************************
//
// Options handling - the following code implements the VM-specific
// jit command-line options.
//
// Options processing is table-driven, the table for VM-specific options
// here (see Options.hpp for a description of the table entries).
//
//************************************************************************
// Helper routines to parse and format -Xlp:codecache Options
enum TR_XlpCodeCacheOptions
{
XLPCC_PARSING_FIRST_OPTION,
XLPCC_PARSING_OPTION,
XLPCC_PARSING_COMMA,
XLPCC_PARSING_ERROR
};
// Returns large page flag type string for error handling.
char *
getLargePageTypeString(UDATA pageFlags)
{
if (0 != (J9PORT_VMEM_PAGE_FLAG_PAGEABLE & pageFlags))
return "pageable";
else if (0 != (J9PORT_VMEM_PAGE_FLAG_FIXED & pageFlags))
return "nonpageable";
else
return "not used";
}
// Formats size to be in terms of X bytes to XX(K/M/G) for printing
void
qualifiedSize(UDATA *byteSize, char **qualifier)
{
UDATA size;
size = *byteSize;
*qualifier = "";
if(!(size % 1024)) {
size /= 1024;
*qualifier = "K";
if(size && !(size % 1024)) {
size /= 1024;
*qualifier = "M";
if(size && !(size % 1024)) {
size /= 1024;
*qualifier = "G";
}
}
}
*byteSize = size;
}
bool
J9::Options::useCompressedPointers()
{
return TR::Compiler->om.compressObjectReferences();
}
#ifdef DEBUG
#define BUILD_TYPE "(debug)"
#else
#define BUILD_TYPE ""
#endif
char *
J9::Options::versionOption(char * option, void * base, TR::OptionTable *entry)
{
J9JITConfig * jitConfig = (J9JITConfig*)base;
PORT_ACCESS_FROM_JAVAVM(jitConfig->javaVM);
j9tty_printf(PORTLIB, "JIT: using build \"%s %s\" %s\n", __DATE__, __TIME__, BUILD_TYPE);
j9tty_printf(PORTLIB, "JIT level: %s\n", TR_BUILD_NAME);
return option;
}
#undef BUILD_TYPE
char *
J9::Options::limitOption(char * option, void * base, TR::OptionTable *entry)
{
if (!J9::Options::getDebug() && !J9::Options::createDebug())
return 0;
if (J9::Options::getJITCmdLineOptions() == NULL)
{
// if JIT options are NULL, means we're processing AOT options now
return J9::Options::getDebug()->limitOption(option, base, entry, TR::Options::getAOTCmdLineOptions(), false);
}
else
{
// otherwise, we're processing JIT options
return J9::Options::getDebug()->limitOption(option, base, entry, TR::Options::getJITCmdLineOptions(), false);
}
}
char *
J9::Options::limitfileOption(char * option, void * base, TR::OptionTable *entry)
{
if (!J9::Options::getDebug() && !J9::Options::createDebug())
return 0;
J9JITConfig * jitConfig = (J9JITConfig*)base;
TR_PseudoRandomNumbersListElement **pseudoRandomNumbersListPtr = NULL;
if (jitConfig != 0)
{
TR::CompilationInfo * compInfo = TR::CompilationInfo::get(jitConfig);
pseudoRandomNumbersListPtr = compInfo->getPersistentInfo()->getPseudoRandomNumbersListPtr();
}
if (J9::Options::getJITCmdLineOptions() == NULL)
{
// if JIT options are NULL, means we're processing AOT options now
return J9::Options::getDebug()->limitfileOption(option, base, entry, TR::Options::getAOTCmdLineOptions(), false, pseudoRandomNumbersListPtr);
}
else
{
// otherwise, we're processing JIT options
return J9::Options::getDebug()->limitfileOption(option, base, entry, TR::Options::getJITCmdLineOptions(), false, pseudoRandomNumbersListPtr);
}
}
char *
J9::Options::inlinefileOption(char * option, void * base, TR::OptionTable *entry)
{
if (!J9::Options::getDebug() && !J9::Options::createDebug())
return 0;
if (J9::Options::getJITCmdLineOptions() == NULL)
{
// if JIT options are NULL, means we're processing AOT options now
return J9::Options::getDebug()->inlinefileOption(option, base, entry, TR::Options::getAOTCmdLineOptions());
}
else
{
// otherwise, we're processing JIT options
return J9::Options::getDebug()->inlinefileOption(option, base, entry, TR::Options::getJITCmdLineOptions());
}
}
struct vmX
{
uint32_t _xstate;
const char *_xname;
int32_t _xsize;
};
static const struct vmX vmSharedStateArray[] =
{
{J9VMSTATE_SHAREDCLASS_FIND, "J9VMSTATE_SHAREDCLASS_FIND", 0}, //9 0x80001
{J9VMSTATE_SHAREDCLASS_STORE, "J9VMSTATE_SHAREDCLASS_STORE", 0}, //10 0x80002
{J9VMSTATE_SHAREDCLASS_MARKSTALE, "J9VMSTATE_SHAREDCLASS_MARKSTALE", 0}, //11 0x80003
{J9VMSTATE_SHAREDAOT_FIND, "J9VMSTATE_SHAREDAOT_FIND", 0}, //12 0x80004
{J9VMSTATE_SHAREDAOT_STORE, "J9VMSTATE_SHAREDAOT_STORE", 0}, //13 0x80005
{J9VMSTATE_SHAREDDATA_FIND, "J9VMSTATE_SHAREDDATA_FIND", 0}, //14 0x80006
{J9VMSTATE_SHAREDDATA_STORE, "J9VMSTATE_SHAREDDATA_STORE", 0}, //15 0x80007
{J9VMSTATE_SHAREDCHARARRAY_FIND, "J9VMSTATE_SHAREDCHARARRAY_FIND", 0}, //16 0x80008
{J9VMSTATE_SHAREDCHARARRAY_STORE, "J9VMSTATE_SHAREDCHARARRAY_STORE", 0}, //17 0x80009
{J9VMSTATE_ATTACHEDDATA_STORE, "J9VMSTATE_ATTACHEDDATA_STORE", 0}, //18 0x8000a
{J9VMSTATE_ATTACHEDDATA_FIND, "J9VMSTATE_ATTACHEDDATA_FIND", 0}, //19 0x8000b
{J9VMSTATE_ATTACHEDDATA_UPDATE, "J9VMSTATE_ATTACHEDDATA_UPDATE", 0}, //20 0x8000c
};
static const struct vmX vmJniStateArray[] =
{
{J9VMSTATE_JNI, "J9VMSTATE_JNI", 0}, //4 0x40000
{J9VMSTATE_JNI_FROM_JIT, "J9VMSTATE_JNI_FROM_JIT", 0}, // 0x40001
};
static const struct vmX vmStateArray[] =
{
{0xdead, "unknown", 0}, //0
{J9VMSTATE_INTERPRETER, "J9VMSTATE_INTERPRETER", 0}, //1 0x10000
{J9VMSTATE_GC, "J9VMSTATE_GC", 0}, //2 0x20000
{J9VMSTATE_GROW_STACK, "J9VMSTATE_GROW_STACK", 0}, //3 0x30000
{J9VMSTATE_JNI, "special", 2}, //4 0x40000
{J9VMSTATE_JIT, "J9VMSTATE_JIT", 0}, //5 0x50000
{J9VMSTATE_BCVERIFY, "J9VMSTATE_BCVERIFY", 0}, //6 0x60000
{J9VMSTATE_RTVERIFY, "J9VMSTATE_RTVERIFY", 0}, //7 0x70000
{J9VMSTATE_SHAREDCLASS_FIND, "special", 12}, //8 0x80000
{J9VMSTATE_SNW_STACK_VALIDATE, "J9VMSTATE_SNW_STACK_VALIDATE", 0}, //9 0x110000
{J9VMSTATE_GP, "J9VMSTATE_GP", 0} //10 0xFFFF0000
};
namespace J9
{
char *
Options::gcOnResolveOption(char * option, void * base, TR::OptionTable *entry)
{
J9JITConfig * jitConfig = (J9JITConfig*)base;
jitConfig->gcOnResolveThreshold = 0;
jitConfig->runtimeFlags |= J9JIT_SCAVENGE_ON_RESOLVE;
if (* option == '=')
{
for (option++; * option >= '0' && * option <= '9'; option++)
jitConfig->gcOnResolveThreshold = jitConfig->gcOnResolveThreshold *10 + * option - '0';
}
entry->msgInfo = jitConfig->gcOnResolveThreshold;
return option;
}
char *
Options::vmStateOption(char * option, void * base, TR::OptionTable *entry)
{
J9JITConfig * jitConfig = (J9JITConfig*)base;
PORT_ACCESS_FROM_JAVAVM(jitConfig->javaVM);
char *p = option;
int32_t state = strtol(option, &p, 16);
if (state > 0)
{
uint32_t index = (state >> 16) & 0xFF;
bool invalidState = false;
if (!isValidVmStateIndex(index))
invalidState = true;
if (!invalidState)
{
uint32_t origState = vmStateArray[index]._xstate;
switch (index)
{
case ((J9VMSTATE_JNI>>16) & 0xF):
invalidState = true;
if ((state & 0xFFFF0) == origState)
{
int32_t lowState = state & 0xF;
if (lowState >= 0 && lowState < vmStateArray[index]._xsize)
{
invalidState = false;
j9tty_printf(PORTLIB, "vmState [0x%x]: {%s}\n", state, vmJniStateArray[lowState]._xname);
}
}
break;
case ((J9VMSTATE_SHAREDCLASS_FIND>>16) & 0xF):
invalidState = true;
if ((state & 0xFFFF0) == (origState & 0xFFFF0))
{
int32_t lowState = state & 0xF;
if (lowState >= 0x1 && lowState <= vmStateArray[index]._xsize)
{
invalidState = false;
j9tty_printf(PORTLIB, "vmState [0x%x]: {%s}\n", state, vmSharedStateArray[--lowState]._xname);
}
}
break;
case ((J9VMSTATE_JIT >> 16) & 0xF):
{
if ((state & 0xFF00) == 0) // ILGeneratorPhase
{
j9tty_printf(PORTLIB, "vmState [0x%x]: {%s} {ILGeneration}\n", state, vmStateArray[index]._xname);
}
else if ((state & J9VMSTATE_JIT_OPTIMIZER) == J9VMSTATE_JIT_OPTIMIZER)
{
OMR::Optimizations opts = static_cast<OMR::Optimizations>((state & 0xFF00) >> 8);
if (opts < OMR::numOpts)
{
j9tty_printf(PORTLIB, "vmState [0x%x]: {%s} {%s}\n", state, vmStateArray[index]._xname, OMR::Optimizer::getOptimizationName(opts));
}
else
j9tty_printf(PORTLIB, "vmState [0x%x]: {%s} {Illegal optimization number}\n", state, vmStateArray[index]._xname);
}
else if ((state & J9VMSTATE_JIT_CODEGEN) == J9VMSTATE_JIT_CODEGEN)
{
TR::CodeGenPhase::PhaseValue phase = static_cast<TR::CodeGenPhase::PhaseValue>(state & 0xFF);
if ( phase < TR::CodeGenPhase::getNumPhases())
j9tty_printf(PORTLIB, "vmState [0x%x]: {%s} {%s}\n", state, vmStateArray[index]._xname, TR::CodeGenPhase::getName(phase));
else
j9tty_printf(PORTLIB, "vmState [0x%x]: {%s} {Illegal codegen phase number}\n", state, vmStateArray[index]._xname);
}
else
invalidState = true;
}
break;
default:
if (state != origState)
invalidState = true;
else
j9tty_printf(PORTLIB, "vmState [0x%x]: {%s}\n", state, vmStateArray[index]._xname);
break;
}
}
if (invalidState)
j9tty_printf(PORTLIB, "vmState [0x%x]: not a valid vmState\n", state);
}
else
{
// a bad vmState, eat it up atleast
//
j9tty_printf(PORTLIB, "vmState [0x%x]: not a valid vmState\n", state);
}
for (; *p; p++);
return p;
}
char *
Options::loadLimitOption(char * option, void * base, TR::OptionTable *entry)
{
if (!TR::Options::getDebug() && !TR::Options::createDebug())
return 0;
if (TR::Options::getJITCmdLineOptions() == NULL)
{
// if JIT options are NULL, means we're processing AOT options now
return TR::Options::getDebug()->limitOption(option, base, entry, TR::Options::getAOTCmdLineOptions(), true);
}
else
{
// otherwise, we're processing JIT options
J9JITConfig * jitConfig = (J9JITConfig*)base;
PORT_ACCESS_FROM_JAVAVM(jitConfig->javaVM);
// otherwise, we're processing JIT options
j9tty_printf(PORTLIB, "<JIT: loadLimit option should be specified on -Xaot --> '%s'>\n", option);
return option;
//return J9::Options::getDebug()->limitOption(option, base, entry, getJITCmdLineOptions(), true);
}
}
char *
Options::loadLimitfileOption(char * option, void * base, TR::OptionTable *entry)
{
if (!TR::Options::getDebug() && !TR::Options::createDebug())
return 0;
J9JITConfig * jitConfig = (J9JITConfig*)base;
TR_PseudoRandomNumbersListElement **pseudoRandomNumbersListPtr = NULL;
if (jitConfig != 0)
{
TR::CompilationInfo * compInfo = TR::CompilationInfo::get(jitConfig);
pseudoRandomNumbersListPtr = compInfo->getPersistentInfo()->getPseudoRandomNumbersListPtr();
}
if (TR::Options::getJITCmdLineOptions() == NULL)
{
// if JIT options are NULL, means we're processing AOT options now
return TR::Options::getDebug()->limitfileOption(option, base, entry, TR::Options::getAOTCmdLineOptions(), true /* new param */, pseudoRandomNumbersListPtr);
}
else
{
J9JITConfig * jitConfig = (J9JITConfig*)base;
PORT_ACCESS_FROM_JAVAVM(jitConfig->javaVM);
// otherwise, we're processing JIT options
j9tty_printf(PORTLIB, "<JIT: loadLimitfile option should be specified on -Xaot --> '%s'>\n", option);
return option;
}
}
char *
Options::tprofOption(char * option, void * base, TR::OptionTable *entry)
{
J9JITConfig * jitConfig = (J9JITConfig*)base;
PORT_ACCESS_FROM_JAVAVM(jitConfig->javaVM);
enableCompiledMethodLoadHookOnly = true;
return option;
}
char *
Options::setJitConfigRuntimeFlag(char *option, void *base, TR::OptionTable *entry)
{
J9JITConfig *jitConfig = (J9JITConfig*)_feBase;
jitConfig->runtimeFlags |= entry->parm2;
return option;
}
char *
Options::resetJitConfigRuntimeFlag(char *option, void *base, TR::OptionTable *entry)
{
J9JITConfig *jitConfig = (J9JITConfig*)_feBase;
jitConfig->runtimeFlags &= ~(entry->parm2);
return option;
}
char *
Options::setJitConfigNumericValue(char *option, void *base, TR::OptionTable *entry)
{
char *jitConfig = (char*)_feBase;
// All numeric fields in jitConfig are declared as UDATA
*((intptr_t*)(jitConfig + entry->parm1)) = (intptr_t)TR::Options::getNumericValue(option);
return option;
}
}
#define SET_JITCONFIG_RUNTIME_FLAG(x) J9::Options::setJitConfigRuntimeFlag, 0, (x), "F", NOT_IN_SUBSET
#define RESET_JITCONFIG_RUNTIME_FLAG(x) J9::Options::resetJitConfigRuntimeFlag, 0, (x), "F", NOT_IN_SUBSET
// DMDM: hack
TR::OptionTable OMR::Options::_feOptions[] = {
{"activeThreadsThresholdForInterpreterSampling=", "M<nnn>\tSampling does not affect invocation count beyond this threshold",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_activeThreadsThreshold, 0, "F%d", NOT_IN_SUBSET },
{"aotMethodCompilesThreshold=", "R<nnn>\tIf this many AOT methods are compiled before exceeding aotMethodThreshold, don't stop AOT compiling",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_aotMethodCompilesThreshold, 0, "F%d", NOT_IN_SUBSET},
{"aotMethodThreshold=", "R<nnn>\tNumber of methods found in shared cache after which we stop AOTing",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_aotMethodThreshold, 0, "F%d", NOT_IN_SUBSET},
{"aotWarmSCCThreshold=", "R<nnn>\tNumber of methods found in shared cache at startup to declare SCC as warm",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_aotWarmSCCThreshold, 0, "F%d", NOT_IN_SUBSET },
{"availableCPUPercentage=", "M<nnn>\tUse it when java process has a fraction of a CPU. Number 1..99 ",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_availableCPUPercentage, 0, "F%d", NOT_IN_SUBSET},
{"bcLimit=", "C<nnn>\tbytecode size limit",
TR::Options::setJitConfigNumericValue, offsetof(J9JITConfig, bcSizeLimit), 0, "P%d"},
{"bcountForBootstrapMethods=", "M<nnn>\tcount for loopy methods belonging to bootstrap classes. "
"Used in no AOT cases",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_countForLoopyBootstrapMethods, 250, "F%d", NOT_IN_SUBSET },
{"bigAppSampleThresholdAdjust=", "O\tadjust the hot and scorching threshold for certain 'big' apps",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_bigAppSampleThresholdAdjust, 0, "F%d", NOT_IN_SUBSET},
{"catchSamplingSizeThreshold=", "R<nnn>\tThe sample counter will not be decremented in a catch block "
"if the number of nodes in the compiled method exceeds this threshold",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_catchSamplingSizeThreshold, 0, "F%d", NOT_IN_SUBSET},
{"classLoadPhaseInterval=", "O<nnn>\tnumber of sampling ticks before we run "
"again the code for a class loading phase detection",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_classLoadingPhaseInterval, 0, "P%d", NOT_IN_SUBSET},
{"classLoadPhaseQuiesceIntervals=", "O<nnn>\tnumber of intervals we remain in classLoadPhase after it ended",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_numClassLoadPhaseQuiesceIntervals, 0, "F%d", NOT_IN_SUBSET},
{"classLoadPhaseThreshold=", "O<nnn>\tnumber of classes loaded per sampling tick that "
"needs to be attained to enter the class loading phase. "
"Specify a very large value to disable this optimization",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_classLoadingPhaseThreshold, 0, "P%d", NOT_IN_SUBSET},
{"classLoadPhaseVariance=", "O<nnn>\tHow much the classLoadPhaseThreshold can deviate from "
"its average value (as a percentage). Specify an integer 0-99",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_classLoadingPhaseVariance, 0, "F%d", NOT_IN_SUBSET},
{"classLoadRateAverage=", "O<nnn>\tnumber of classes loaded per second on an average machine",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_classLoadingRateAverage, 0, "F%d", NOT_IN_SUBSET},
{"clinit", "D\tforce compilation of <clinit> methods", SET_JITCONFIG_RUNTIME_FLAG(J9JIT_COMPILE_CLINIT) },
{"code=", "C<nnn>\tcode cache size, in KB",
TR::Options::setJitConfigNumericValue, offsetof(J9JITConfig, codeCacheKB), 0, "F%d (KB)"},
{"codepad=", "C<nnn>\ttotal code cache pad size, in KB",
TR::Options::setJitConfigNumericValue, offsetof(J9JITConfig, codeCachePadKB), 0, "F%d (KB)"},
{"codetotal=", "C<nnn>\ttotal code memory limit, in KB",
TR::Options::setJitConfigNumericValue, offsetof(J9JITConfig, codeCacheTotalKB), 0, "F%d (KB)"},
{"compilationBudget=", "O<nnn>\tnumber of usec. Used to better interleave compilation"
"with computation. Use 80000 as a starting point",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_compilationBudget, 0, "P%d", NOT_IN_SUBSET},
{"compilationDelayTime=", "M<nnn>\tnumber of seconds after which we allow compiling",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_compilationDelayTime, 0, "F%d", NOT_IN_SUBSET },
{"compilationExpirationTime=", "R<nnn>\tnumber of seconds after which point we will stop compiling",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_compilationExpirationTime, 0, "F%d", NOT_IN_SUBSET},
{"compilationPriorityQSZThreshold=", "M<nnn>\tCompilation queue size threshold when priority of post-profiling"
"compilation requests is increased",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_compPriorityQSZThreshold , 0, "F%d", NOT_IN_SUBSET},
{"compilationThreadAffinityMask=", "M<nnn>\taffinity mask for compilation threads. Use hexa without 0x",
TR::Options::setStaticHexadecimal, (intptr_t)&TR::Options::_compThreadAffinityMask, 0, "F%d", NOT_IN_SUBSET},
{"compilationYieldStatsHeartbeatPeriod=", "M<nnn>\tperiodically print stats about compilation yield points "
"Period is in ms. Default is 0 which means don't do it. "
"Values between 1 and 99 ms will be upgraded to 100 ms.",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_compYieldStatsHeartbeatPeriod, 0, "F%d", NOT_IN_SUBSET},
{"compilationYieldStatsThreshold=", "M<nnn>\tprint stats about compilation yield points if the "
"threshold is exceeded. Default 1000 usec. ",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_compYieldStatsThreshold, 0, "F%d", NOT_IN_SUBSET},
{"compThreadPriority=", "M<nnn>\tThe priority of the compilation thread. "
"Use an integer between 0 and 4. Default is 4 (highest priority)",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_compilationThreadPriorityCode, 0, "F%d", NOT_IN_SUBSET},
{"conservativeScorchingSampleThreshold=", "R<nnn>\tLower bound for scorchingSamplingThreshold when scaling based on numProc",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_conservativeScorchingSampleThreshold, 0, "F%d", NOT_IN_SUBSET},
{"countForBootstrapMethods=", "M<nnn>\tcount for loopless methods belonging to bootstrap classes. "
"Used in no AOT cases",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_countForLooplessBootstrapMethods, 1000, "F%d", NOT_IN_SUBSET },
{"cpuCompTimeExpensiveThreshold=", "M<nnn>\tthreshold for when hot & very-hot compilations occupied enough cpu time to be considered expensive in millisecond",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_cpuCompTimeExpensiveThreshold, 0, "F%d", NOT_IN_SUBSET},
{"cpuEntitlementForConservativeScorching=", "M<nnn>\tPercentage. 200 means two full cpus",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_cpuEntitlementForConservativeScorching, 0, "F%d", NOT_IN_SUBSET },
{"cpuUtilThresholdForStarvation=", "M<nnn>\tThreshold for deciding that a comp thread is not starved",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_cpuUtilThresholdForStarvation , 0, "F%d", NOT_IN_SUBSET},
{"data=", "C<nnn>\tdata cache size, in KB",
TR::Options::setJitConfigNumericValue, offsetof(J9JITConfig, dataCacheKB), 0, "F%d (KB)"},
{"dataCacheMinQuanta=", "I<nnn>\tMinimum number of quantums per data cache allocation",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_dataCacheMinQuanta, 0, "F%d", NOT_IN_SUBSET},
{"dataCacheQuantumSize=", "I<nnn>\tLargest guaranteed common byte multiple of data cache allocations. This value will be rounded up for pointer alignment.",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_dataCacheQuantumSize, 0, "F%d", NOT_IN_SUBSET},
{"datatotal=", "C<nnn>\ttotal data memory limit, in KB",
TR::Options::setJitConfigNumericValue, offsetof(J9JITConfig, dataCacheTotalKB), 0, "F%d (KB)"},
{"disableIProfilerClassUnloadThreshold=", "R<nnn>\tNumber of classes that can be unloaded before we disable the IProfiler",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_disableIProfilerClassUnloadThreshold, 0, "F%d", NOT_IN_SUBSET},
{"dltPostponeThreshold=", "M<nnn>\tNumber of dlt attempts inv. count for a method is seen not advancing",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_dltPostponeThreshold, 0, "F%d", NOT_IN_SUBSET },
{"exclude=", "D<xxx>\tdo not compile methods beginning with xxx", TR::Options::limitOption, 1, 0, "P%s"},
{"expensiveCompWeight=", "M<nnn>\tweight of a comp request to be considered expensive",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_expensiveCompWeight, 0, "F%d", NOT_IN_SUBSET },
{"experimentalClassLoadPhaseInterval=", "O<nnn>\tnumber of sampling ticks to stay in a class load phase",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_experimentalClassLoadPhaseInterval, 0, "P%d", NOT_IN_SUBSET},
{"gcNotify", "L\tlog scavenge/ggc notifications to stdout", SET_JITCONFIG_RUNTIME_FLAG(J9JIT_GC_NOTIFY) },
{"gcOnResolve", "D[=<nnn>]\tscavenge on every resolve, or every resolve after nnn",
TR::Options::gcOnResolveOption, 0, 0, "F=%d"},
{"GCRQueuedThresholdForCounting=", "M<nnn>\tDisable GCR counting if number of queued GCR requests exceeds this threshold",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_GCRQueuedThresholdForCounting , 0, "F%d", NOT_IN_SUBSET},
#ifdef DEBUG
{"gcTrace=", "D<nnn>\ttrace gc stack walks after gc number nnn",
TR::Options::setJitConfigNumericValue, offsetof(J9JITConfig, gcTraceThreshold), 0, "F%d"},
#endif
#if defined(J9VM_OPT_JITSERVER)
{"highActiveThreadThreshold=", " \tDefines what is a high Threshold for active compilations",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_highActiveThreadThreshold, 0, "F%d"},
#endif /* defined(J9VM_OPT_JITSERVER) */
{"HWProfilerAOTWarmOptLevelThreshold=", "O<nnn>\tAOT Warm Opt Level Threshold",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_hwprofilerAOTWarmOptLevelThreshold, 0, "F%d", NOT_IN_SUBSET},
{"HWProfilerBufferMaxPercentageToDiscard=", "O<nnn>\tpercentage of HW profiling buffers "
"that JIT is allowed to discard instead of processing",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_hwProfilerBufferMaxPercentageToDiscard, 0, "F%d", NOT_IN_SUBSET},
{"HWProfilerDisableAOT", "O<nnn>\tDisable RI AOT",
SET_OPTION_BIT(TR_HWProfilerDisableAOT), "F", NOT_IN_SUBSET},
{"HWProfilerDisableRIOverPrivageLinkage","O<nnn>\tDisable RI over private linkage",
SET_OPTION_BIT(TR_HWProfilerDisableRIOverPrivateLinkage), "F", NOT_IN_SUBSET},
{"HWProfilerExpirationTime=", "R<nnn>\t",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_hwProfilerExpirationTime, 0, "F%d", NOT_IN_SUBSET },
{"HWProfilerHotOptLevelThreshold=", "O<nnn>\tHot Opt Level Threshold",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_hwprofilerHotOptLevelThreshold, 0, "F%d", NOT_IN_SUBSET},
{"HWProfilerLastOptLevel=", "O<nnn>\tLast Opt level",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_hwprofilerLastOptLevel, 0, "F%d", NOT_IN_SUBSET},
{"HWProfilerNumDowngradesToTurnRION=", "R<nnn>\t",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_numDowngradesToTurnRION, 0, "F%d", NOT_IN_SUBSET },
{"HWProfilerNumOutstandingBuffers=", "O<nnn>\tnumber of outstanding hardware profiling buffers "
"allowed in the system. Specify 0 to disable this optimization",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_hwprofilerNumOutstandingBuffers, 0, "F%d", NOT_IN_SUBSET},
{"HWProfilerPRISamplingRate=", "O<nnn>\tP RI Scaling Factor",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_hwprofilerPRISamplingRate, 0, "F%d", NOT_IN_SUBSET},
{"HWProfilerQSZMaxThresholdToRIDowngrade=", "R<nnn>\t",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_qszMaxThresholdToRIDowngrade, 0, "F%d", NOT_IN_SUBSET },
{"HWProfilerQSZMinThresholdToRIDowngrade=", "R<nnn>\t",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_qszMinThresholdToRIDowngrade, 0, "F%d", NOT_IN_SUBSET },
{"HWProfilerQSZToTurnRION=", "R<nnn>\t",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_qszThresholdToTurnRION, 0, "F%d", NOT_IN_SUBSET },
{"HWProfilerRecompilationDecisionWindow=", "R<nnn>\tNumber of decisions to wait for before looking at stats decision outcome",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_hwProfilerRecompDecisionWindow, 0, "F%d", NOT_IN_SUBSET },
{"HWProfilerRecompilationFrequencyThreshold=", "R<nnn>\tLess than 1 in N decisions to recompile, turns RI off",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_hwProfilerRecompFrequencyThreshold, 0, "F%d", NOT_IN_SUBSET },
{"HWProfilerRecompilationInterval=", "O<nnn>\tRecompilation Interval",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_hwprofilerRecompilationInterval, 0, "F%d", NOT_IN_SUBSET},
{"HWProfilerReducedWarmOptLevelThreshold=", "O<nnn>\tReduced Warm Opt Level Threshold",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_hwprofilerReducedWarmOptLevelThreshold, 0, "F%d", NOT_IN_SUBSET},
{"HWProfilerRIBufferPoolSize=", "O<nnn>\tRI Buffer Pool Size",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_hwprofilerRIBufferPoolSize, 0, "F%d", NOT_IN_SUBSET},
{"HWProfilerRIBufferProcessingFrequency=", "O<nnn>\tRI Buffer Processing Frequency",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_hwProfilerRIBufferProcessingFrequency, 0, "F%d", NOT_IN_SUBSET},
{"HWProfilerRIBufferThreshold=", "O<nnn>\tRI Buffer Threshold",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_hwprofilerRIBufferThreshold, 0, "F%d", NOT_IN_SUBSET},
{"HWProfilerScorchingOptLevelThreshold=", "O<nnn>\tScorching Opt Level Threshold",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_hwprofilerScorchingOptLevelThreshold, 0, "F%d", NOT_IN_SUBSET},
{"HWProfilerWarmOptLevelThreshold=", "O<nnn>\tWarm Opt Level Threshold",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_hwprofilerWarmOptLevelThreshold, 0, "F%d", NOT_IN_SUBSET},
{"HWProfilerZRIBufferSize=", "O<nnn>\tZ RI Buffer Size",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_hwprofilerZRIBufferSize, 0, "F%d", NOT_IN_SUBSET},
{"HWProfilerZRIMode=", "O<nnn>\tZ RI Mode",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_hwprofilerZRIMode, 0, "F%d", NOT_IN_SUBSET},
{"HWProfilerZRIRGS=", "O<nnn>\tZ RI Reporting Group Size",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_hwprofilerZRIRGS, 0, "F%d", NOT_IN_SUBSET},
{"HWProfilerZRISF=", "O<nnn>\tZ RI Scaling Factor",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_hwprofilerZRISF, 0, "F%d", NOT_IN_SUBSET},
{"inlinefile=", "D<filename>\tinline filter defined in filename. "
"Use inlinefile=filename", TR::Options::inlinefileOption, 0, 0, "F%s"},
{"interpreterSamplingDivisor=", "R<nnn>\tThe divisor used to decrease the invocation count when an interpreted method is sampled",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_interpreterSamplingDivisor, 0, "F%d", NOT_IN_SUBSET},
{"interpreterSamplingThreshold=", "R<nnn>\tThe maximum invocation count at which a sampling hit will result in the count being divided by the value of interpreterSamplingDivisor",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_interpreterSamplingThreshold, 0, "F%d", NOT_IN_SUBSET},
{"interpreterSamplingThresholdInJSR292=", "R<nnn>\tThe maximum invocation count at which a sampling hit will result in the count being divided by the value of interpreterSamplingDivisor on a MethodHandle-oriented workload",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_interpreterSamplingThresholdInJSR292, 0, "F%d", NOT_IN_SUBSET},
{"interpreterSamplingThresholdInStartupMode=", "R<nnn>\tThe maximum invocation count at which a sampling hit will result in the count being divided by the value of interpreterSamplingDivisor",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_interpreterSamplingThresholdInStartupMode, 0, "F%d", NOT_IN_SUBSET},
{"invocationThresholdToTriggerLowPriComp=", "M<nnn>\tNumber of times a loopy method must be invoked to be eligible for LPQ",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_invocationThresholdToTriggerLowPriComp, 0, "F%d", NOT_IN_SUBSET },
{"iprofilerBufferInterarrivalTimeToExitDeepIdle=", "M<nnn>\tIn ms. If 4 IP buffers arrive back-to-back more frequently than this value, JIT exits DEEP_IDLE",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_iProfilerBufferInterarrivalTimeToExitDeepIdle, 0, "F%d", NOT_IN_SUBSET },
{"iprofilerBufferMaxPercentageToDiscard=", "O<nnn>\tpercentage of interpreter profiling buffers "
"that JIT is allowed to discard instead of processing",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_iprofilerBufferMaxPercentageToDiscard, 0, "F%d", NOT_IN_SUBSET},
{"iprofilerBufferSize=", "I<nnn>\t set the size of each iprofiler buffer",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_iprofilerBufferSize, 0, "F%d", NOT_IN_SUBSET},
{"iprofilerFailHistorySize=", "I<nnn>\tNumber of entries for the failure history buffer maintained by Iprofiler",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_iprofilerFailHistorySize, 0, "F%d", NOT_IN_SUBSET},
{"iprofilerFailRateThreshold=", "I<nnn>\tReactivate Iprofiler if fail rate exceeds this threshold. 1-100",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_iprofilerFailRateThreshold, 0, "F%d", NOT_IN_SUBSET},
{"iprofilerIntToTotalSampleRatio=", "O<nnn>\tRatio of Interpreter samples to Total samples",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_iprofilerIntToTotalSampleRatio, 0, "F%d", NOT_IN_SUBSET},
{"iprofilerMaxCount=", "O<nnn>\tmax invocation count for IProfiler to be active",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_maxIprofilingCount, 0, "F%d", NOT_IN_SUBSET},
{"iprofilerMaxCountInStartupMode=", "O<nnn>\tmax invocation count for IProfiler to be active in STARTUP phase",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_maxIprofilingCountInStartupMode, 0, "F%d", NOT_IN_SUBSET},
{"iprofilerMemoryConsumptionLimit=", "O<nnn>\tlimit on memory consumption for interpreter profiling data",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_iProfilerMemoryConsumptionLimit, 0, "P%d", NOT_IN_SUBSET},
{"iprofilerNumOutstandingBuffers=", "O<nnn>\tnumber of outstanding interpreter profiling buffers "
"allowed in the system. Specify 0 to disable this optimization",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_iprofilerNumOutstandingBuffers, 0, "F%d", NOT_IN_SUBSET},
{"iprofilerOffDivisionFactor=", "O<nnn>\tCounts Division factor when IProfiler is Off",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_IprofilerOffDivisionFactor, 0, "F%d", NOT_IN_SUBSET},
{"iprofilerOffSubtractionFactor=", "O<nnn>\tCounts Subtraction factor when IProfiler is Off",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_IprofilerOffSubtractionFactor, 0, "F%d", NOT_IN_SUBSET},
{"iprofilerSamplesBeforeTurningOff=", "O<nnn>\tnumber of interpreter profiling samples "
"needs to be taken after the profiling starts going off to completely turn it off. "
"Specify a very large value to disable this optimization",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_iprofilerSamplesBeforeTurningOff, 0, "P%d", NOT_IN_SUBSET},
{"itFileNamePrefix=", "L<filename>\tprefix for itrace filename",
TR::Options::setStringForPrivateBase, offsetof(TR_JitPrivateConfig,itraceFileNamePrefix), 0, "P%s"},
{"jProfilingEnablementSampleThreshold=", "M<nnn>\tNumber of global samples to allow generation of JProfiling bodies",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_jProfilingEnablementSampleThreshold, 0, "F%d", NOT_IN_SUBSET },
{"kcaoffsets", "I\tGenerate a header file with offset data for use with KCA", TR::Options::kcaOffsets, 0, 0, "F" },
{"largeTranslationTime=", "D<nnn>\tprint IL trees for methods that take more than this value (usec)"
"to compile. Need to have a log file defined on command line",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_largeTranslationTime, 0, "F%d", NOT_IN_SUBSET},
{"limit=", "D<xxx>\tonly compile methods beginning with xxx", TR::Options::limitOption, 0, 0, "P%s"},
{"limitfile=", "D<filename>\tfilter method compilation as defined in filename. "
"Use limitfile=(filename,firstLine,lastLine) to limit lines considered from firstLine to lastLine",
TR::Options::limitfileOption, 0, 0, "F%s"},
{"loadExclude=", "D<xxx>\tdo not relocate AOT methods beginning with xxx", TR::Options::loadLimitOption, 1, 0, "P%s"},
{"loadLimit=", "D<xxx>\tonly relocate AOT methods beginning with xxx", TR::Options::loadLimitOption, 0, 0, "P%s"},
{"loadLimitFile=", "D<filename>\tfilter AOT method relocation as defined in filename. "
"Use loadLimitfile=(filename,firstLine,lastLine) to limit lines considered from firstLine to lastLine",
TR::Options::loadLimitfileOption, 0, 0, "P%s"},
{"localCSEFrequencyThreshold=", "O<nnn>\tBlocks with frequency lower than the threshold will not be considered by localCSE",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_localCSEFrequencyThreshold, 0, "F%d", NOT_IN_SUBSET },
{"loopyMethodDivisionFactor=", "O<nnn>\tCounts Division factor for Loopy methods",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_LoopyMethodDivisionFactor, 0, "F%d", NOT_IN_SUBSET},
{"loopyMethodSubtractionFactor=", "O<nnn>\tCounts Subtraction factor for Loopy methods",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_LoopyMethodSubtractionFactor, 0, "F%d", NOT_IN_SUBSET},
{"lowerBoundNumProcForScaling=", "M<nnn>\tLower than this numProc we'll use the default scorchingSampleThreshold",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_lowerBoundNumProcForScaling, 0, "F%d", NOT_IN_SUBSET},
{"lowVirtualMemoryMBThreshold=","M<nnn>\tThreshold when we declare we are running low on virtual memory. Use 0 to disable the feature",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_lowVirtualMemoryMBThreshold, 0, "F%d", NOT_IN_SUBSET},
{"maxCheckcastProfiledClassTests=", "R<nnn>\tnumber inlined profiled classes for profiledclass test in checkcast/instanceof",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_maxCheckcastProfiledClassTests, 0, "F%d", NOT_IN_SUBSET},
{"maxOnsiteCacheSlotForInstanceOf=", "R<nnn>\tnumber of onsite cache slots for instanceOf",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_maxOnsiteCacheSlotForInstanceOf, 0, "F%d", NOT_IN_SUBSET},
{"minSamplingPeriod=", "R<nnn>\tminimum number of milliseconds between samples for hotness",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_minSamplingPeriod, 0, "P%d", NOT_IN_SUBSET},
{"minSuperclassArraySize=", "I<nnn>\t set the size of the minimum superclass array size",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_minimumSuperclassArraySize, 0, "F%d", NOT_IN_SUBSET},
{"noregmap", 0, RESET_JITCONFIG_RUNTIME_FLAG(J9JIT_CG_REGISTER_MAPS) },
{"numCodeCachesOnStartup=", "R<nnn>\tnumber of code caches to create at startup",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_numCodeCachesToCreateAtStartup, 0, "F%d", NOT_IN_SUBSET},
{"numDLTBufferMatchesToEagerlyIssueCompReq=", "R<nnn>\t",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_numDLTBufferMatchesToEagerlyIssueCompReq, 0, "F%d", NOT_IN_SUBSET},
{"numInterpCompReqToExitIdleMode=", "M<nnn>\tNumber of first time comp. req. that takes the JIT out of idle mode",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_numFirstTimeCompilationsToExitIdleMode, 0, "F%d", NOT_IN_SUBSET },
#if defined(J9VM_OPT_JITSERVER)
{"oldAge=", " \tDefines what an old JITServer cache entry means",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_oldAge, 0, "F%d"},
{"oldAgeUnderLowMemory=", " \tDefines what an old JITServer cache entry means when memory is low",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_oldAgeUnderLowMemory, 0, "F%d" },
#endif /* defined(J9VM_OPT_JITSERVER) */
{"profileAllTheTime=", "R<nnn>\tInterpreter profiling will be on all the time",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_profileAllTheTime, 0, "F%d", NOT_IN_SUBSET},
{"queuedInvReqThresholdToDowngradeOptLevel=", "M<nnn>\tDowngrade opt level if too many inv req",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_numQueuedInvReqToDowngradeOptLevel , 0, "F%d", NOT_IN_SUBSET},
{"queueSizeThresholdToDowngradeDuringCLP=", "M<nnn>\tCompilation queue size threshold (interpreted methods) when opt level is downgraded during class load phase",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_qsziThresholdToDowngradeDuringCLP, 0, "F%d", NOT_IN_SUBSET },
{"queueSizeThresholdToDowngradeOptLevel=", "M<nnn>\tCompilation queue size threshold when opt level is downgraded",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_qszThresholdToDowngradeOptLevel , 0, "F%d", NOT_IN_SUBSET},
{"queueSizeThresholdToDowngradeOptLevelDuringStartup=", "M<nnn>\tCompilation queue size threshold when opt level is downgraded during startup phase",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_qszThresholdToDowngradeOptLevelDuringStartup , 0, "F%d", NOT_IN_SUBSET },
{"regmap", 0, SET_JITCONFIG_RUNTIME_FLAG(J9JIT_CG_REGISTER_MAPS) },
{"relaxedCompilationLimitsSampleThreshold=", "R<nnn>\tGlobal samples below this threshold means we can use higher compilation limits",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_relaxedCompilationLimitsSampleThreshold, 0, "F%d", NOT_IN_SUBSET },
{"resetCountThreshold=", "R<nnn>\tThe number of global samples which if exceed during a method's sampling interval will cause the method's sampling counter to be incremented by the number of samples in a sampling interval",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_resetCountThreshold, 0, "F%d", NOT_IN_SUBSET},
{"rtlog=", "L<filename>\twrite verbose run-time output to filename",
TR::Options::setStringForPrivateBase, offsetof(TR_JitPrivateConfig,rtLogFileName), 0, "P%s"},
{"rtResolve", "D\ttreat all data references as unresolved", SET_JITCONFIG_RUNTIME_FLAG(J9JIT_RUNTIME_RESOLVE) },
{"safeReservePhysicalMemoryValue=", "C<nnn>\tsafe buffer value before we risk running out of physical memory, in KB",
TR::Options::setStaticNumericKBAdjusted, (intptr_t)&TR::Options::_safeReservePhysicalMemoryValue, 0, "F%d (KB)"},
{"sampleDontSwitchToProfilingThreshold=", "R<nnn>\tThe maximum number of global samples taken during a sample interval for which the method is denied swithing to profiling",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_sampleDontSwitchToProfilingThreshold, 0, "F%d", NOT_IN_SUBSET},
{"sampleThresholdVariationAllowance=", "R<nnn>\tThe percentage that we add or subtract from"
" the original threshold to adjust for method code size."
" Must be 0--100. Make it 0 to disable this optimization.",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_sampleThresholdVariationAllowance, 0, "P%d", NOT_IN_SUBSET},
{"samplingFrequencyInDeepIdleMode=", "R<nnn>\tnumber of milliseconds between samples for hotness - in deep idle mode",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_samplingFrequencyInDeepIdleMode, 0, "F%d", NOT_IN_SUBSET},
{"samplingFrequencyInIdleMode=", "R<nnn>\tnumber of milliseconds between samples for hotness - in idle mode",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_samplingFrequencyInIdleMode, 0, "F%d", NOT_IN_SUBSET},
{"samplingHeartbeatInterval=", "R<nnn>\tnumber of 100ms periods before sampling heartbeat",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_sampleHeartbeatInterval, 0, "F%d", NOT_IN_SUBSET},
{"samplingThreadExpirationTime=", "R<nnn>\tnumber of seconds after which point we will stop the sampling thread",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_samplingThreadExpirationTime, 0, "F%d", NOT_IN_SUBSET},
{"scorchingSampleThreshold=", "R<nnn>\tThe maximum number of global samples taken during a sample interval for which the method will be recompiled as scorching",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_scorchingSampleThreshold, 0, "F%d", NOT_IN_SUBSET},
{"scratchSpaceFactorWhenJSR292Workload=","M<nnn>\tMultiplier for scratch space limit when MethodHandles are in use",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_scratchSpaceFactorWhenJSR292Workload, 0, "F%d", NOT_IN_SUBSET},
{"scratchSpaceLimitKBWhenLowVirtualMemory=","M<nnn>\tLimit for memory used by JIT when running on low virtual memory",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_scratchSpaceLimitKBWhenLowVirtualMemory, 0, "F%d", NOT_IN_SUBSET},
{"secondaryClassLoadPhaseThreshold=", "O<nnn>\tWhen class load rate just dropped under the CLP threshold "
"we use this secondary threshold to determine class load phase",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_secondaryClassLoadingPhaseThreshold, 0, "F%d", NOT_IN_SUBSET},
{"seriousCompFailureThreshold=", "M<nnn>\tnumber of srious compilation failures after which we write a trace point in the snap file",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_seriousCompFailureThreshold, 0, "F%d", NOT_IN_SUBSET},
#if defined(J9VM_OPT_JITSERVER)
{"sharedROMClassCacheNumPartitions=", " \tnumber of JITServer ROMClass cache partitions (each has its own monitor)",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_sharedROMClassCacheNumPartitions, 0, "F%d", NOT_IN_SUBSET},
{"shareROMClasses", " \tstore a single copy of each distinct ROMClass shared by all clients at JITServer",
TR::Options::setStaticBool, (intptr_t)&TR::Options::_shareROMClasses, 1, "F", NOT_IN_SUBSET},
#endif /* defined(J9VM_OPT_JITSERVER) */
{"singleCache", "C\tallow only one code cache and one data cache to be allocated", RESET_JITCONFIG_RUNTIME_FLAG(J9JIT_GROW_CACHES) },
{"smallMethodBytecodeSizeThreshold=", "O<nnn> Threshold for determining small methods\t "
"(measured in number of bytecodes)",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_smallMethodBytecodeSizeThreshold, 0, "F%d", NOT_IN_SUBSET},
{"smallMethodBytecodeSizeThresholdForCold=", "O<nnn> Threshold for determining small methods at cold\t "
"(measured in number of bytecodes)",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_smallMethodBytecodeSizeThresholdForCold, 0, "F%d", NOT_IN_SUBSET},
{"stack=", "C<nnn>\tcompilation thread stack size in KB",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_stackSize, 0, "F%d", NOT_IN_SUBSET},
#if defined(J9VM_OPT_JITSERVER)
{"statisticsFrequency=", "R<nnn>\tnumber of milliseconds between statistics print",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_statisticsFrequency, 0, "F%d", NOT_IN_SUBSET},
#endif /* defined(J9VM_OPT_JITSERVER) */
{"testMode", "D\tcompile but do not run the compiled code", SET_JITCONFIG_RUNTIME_FLAG(J9JIT_TESTMODE) },
#if defined(J9VM_OPT_JITSERVER)
{"timeBetweenPurges=", " \tDefines how often we are willing to scan for old entries to be purged",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_timeBetweenPurges, 0, "F%d"},
#endif /* defined(J9VM_OPT_JITSERVER) */
#if defined(TR_HOST_X86) || defined(TR_HOST_POWER) || defined(TR_HOST_ARM64)
{"tlhPrefetchBoundaryLineCount=", "O<nnn>\tallocation prefetch boundary line for allocation prefetch",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_TLHPrefetchBoundaryLineCount, 0, "P%d", NOT_IN_SUBSET},
{"tlhPrefetchLineCount=", "O<nnn>\tallocation prefetch line count for allocation prefetch",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_TLHPrefetchLineCount, 0, "P%d", NOT_IN_SUBSET},
{"tlhPrefetchLineSize=", "O<nnn>\tallocation prefetch line size for allocation prefetch",
TR::Options::setStaticNumeric, (intptr_t)&TR::Options::_TLHPrefetchLineSize, 0, "P%d", NOT_IN_SUBSET},