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November 13, 2019 21:48
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Native image options
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| # `native-image` options | |
| Output of `native-image.cmd --expert-options-all`, version 19.2.1. | |
| ``` | |
| -H:±AOTInline Perform method inlining in the AOT compiled native image. Default: + (enabled). | |
| -H:AOTInliningDepthToSizeRate=2.5 | |
| -H:AOTInliningSizeMaximum=300 | |
| -H:AOTInliningSizeMinimum=50 | |
| -H:±AOTTrivialInline Perform trivial method inlining in the AOT compiled native image. Default: + (enabled). | |
| -H:APIFunctionPrefix="graal_" Prefix that is added to the names of API functions. | |
| -H:ASMInstructionProfiling=... Enables instruction profiling on assembler level. Valid values are a comma separated list of supported instructions. | |
| Compare with subclasses of Assembler.InstructionCounter. Default: None | |
| -H:±AbortOnBenchmarkCounterOverflow Abort VM with SIGILL if benchmark counters controlled by the (Generic|Timed|Benchmark)DynamicCounters. Default: - | |
| (disabled). | |
| -H:±AddAllCharsets Make all hosted charsets available at run time. Default: - (disabled). | |
| -H:±AddAllFileSystemProviders Make all supported providers returned by FileSystemProvider.installedProviders() available at run time. Default: + | |
| (enabled). | |
| -H:±AddAllFileTypeDetectors Make all supported FileTypeDetector available at run time. Default: + (enabled). | |
| -H:AggregatedMetricsFile=... File to which aggregated metrics are dumped at shutdown. A CSV format is used if the file ends with .csv otherwise a | |
| more human readable format is used. If not specified, metrics are dumped to the console. Default: None | |
| -H:AlignedHeapChunkSize=1048576 The size of an aligned chunk. | |
| -H:AllocateInstancePrefetchLines=1 Number of cache lines to load after the object address using prefetch instructions generated in JIT compiled code. | |
| -H:AllocatePrefetchDistance=256 Sets the size (in bytes) of the prefetch distance for object allocation. Memory about to be written with the value of | |
| new objects is prefetched up to this distance starting from the address of the last allocated object. Each Java thread | |
| has its own allocation point. | |
| -H:AllocatePrefetchInstr=0 Sets the prefetch instruction to prefetch ahead of the allocation pointer. Possible values are from 0 to 3. The actual | |
| instructions behind the values depend on the platform. | |
| -H:AllocatePrefetchLines=3 Number of cache lines to load after the array allocation using prefetch instructions generated in JIT compiled code. | |
| -H:AllocatePrefetchStepSize=16 Sets the step size (in bytes) for sequential prefetch instructions. | |
| -H:AllocatePrefetchStyle=1 Generated code style for prefetch instructions: for 0 or less no prefetch instructions are generated and for 1 or more | |
| prefetch instructions are introduced after each allocation. | |
| -H:AllocationBeforePhysicalMemorySize=1048576 | |
| Bytes that can be allocated before asking what the physical memory size is. | |
| -H:±AllocationProfiling Enable runtime profiling of allocation. Default: - (disabled). | |
| -H:±AllocationSiteSensitiveHeap A context sensitive heap means that each heap allocated object is modeled by using at least the allocation site. | |
| Default: - (disabled). | |
| -H:±AllowFoldMethods Allow MethodTypeFlow to see @Fold methods. Default: - (disabled). | |
| -H:±AllowIncompleteClasspath Allow image building with an incomplete class path: report type resolution errors at run time when they are accessed the | |
| first time, instead of during image building. Default: - (disabled). | |
| -H:±AllowVMInspection Enables features that allow the VM to be inspected during runtime. Default: - (disabled). | |
| -H:±AlwaysInlineIntrinsics Unconditionally inline intrinsics. Default: - (disabled). | |
| -H:±AlwaysInlineVTableStubs Default: - (disabled). | |
| -H:AnalysisContextSensitivity="insens" Controls the static analysis context sensitivity. Available values: insens (context insensitive analysis), allocsens | |
| (context insensitive analysis, context insensitive heap, allocation site sensitive heap), _1obj (1 object sensitive | |
| analysis with a context insensitive heap), _2obj1h (2 object sensitive with a 1 context sensitive heap). | |
| -H:AnalysisSizeCutoff=8 The maximum size of type and method profiles returned by the static analysis. -1 indicates no limitation. | |
| -H:±BenchmarkCountersDumpDynamic Dump dynamic counters. Default: + (enabled). | |
| -H:±BenchmarkCountersDumpStatic Dump static counters. Default: - (disabled). | |
| -H:BenchmarkCountersFile=... File to which benchmark counters are dumped. A CSV format is used if the file ends with .csv otherwise a more human | |
| readable format is used. The fields in the CSV format are: category, group, name, value. Default: None | |
| -H:BenchmarkDynamicCounters=... Turn on the benchmark counters. The format of this option is:. Default: None | |
| -H:±BootstrapInitializeOnly Do not compile anything on bootstrap but just initialize the compiler. Default: - (disabled). | |
| -H:BootstrapTimeout=15.0 Maximum time in minutes to spend bootstrapping (0 to disable this limit). | |
| -H:BootstrapWatchDogCriticalRateRatio=0.25 Ratio of the maximum compilation rate below which the bootstrap compilation rate must not fall (0 or less disables | |
| monitoring). | |
| -H:CAPCacheDir="" Directory where information generated by the CAnnotation Processor are cached. | |
| -H:CLibraryPath="c:\Users\jniederm\src\code-one-notes\graalvm-demo\clibraries\windows-amd64" | |
| Search path for C libraries passed to the linker (list of comma-separated directories). | |
| -H:CPUFeatures=... Comma separated list of CPU features that will be used for image generation on the AMD64 platform. Features SSE and SSE2 | |
| are enabled by default. Other available features are: CX8, CMOV, FXSR, HT, MMX, AMD_3DNOW_PREFETCH, SSE3, SSSE3, | |
| SSE4A, SSE4_1, SSE4_2, POPCNT, LZCNT, TSC, TSCINV, AVX, AVX2, AES, ERMS, CLMUL, BMI1, BMI2, RTM, ADX, AVX512F, | |
| AVX512DQ, AVX512PF, AVX512ER, AVX512CD, AVX512BW. Default: None | |
| -H:CStandard="C89" C standard to use in header files. Possible values are: [C89, C99, C11]. | |
| -H:±CanOmitFrame Default: + (enabled). | |
| -H:±CanonicalGraphStringsCheckConstants Exclude virtual nodes when dumping canonical text for graphs. Default: - (disabled). | |
| -H:±CanonicalGraphStringsExcludeVirtuals Exclude virtual nodes when dumping canonical text for graphs. Default: + (enabled). | |
| -H:±CanonicalGraphStringsRemoveIdentities Attempts to remove object identity hashes when dumping canonical text for graphs. Default: + (enabled). | |
| -H:±CheckRecurringCallbackOnNativeToJavaTransition | |
| Test whether a thread's recurring callback is pending on each transition from native code to Java. Default: - | |
| (disabled). | |
| -H:Class="" Class containing the default entry point method. Optional if --shared is used. | |
| -H:ClassInitialization=... A comma-separated list of classes appended with their initialization strategy (':build_time', ':rerun', or ':run_time'). | |
| Default: None | |
| -H:±ClearMetricsAfterBootstrap Clear the debug metrics after bootstrap. Default: - (disabled). | |
| -H:±CodeCacheCounters Count accesses to the image and runtime code info table. Default: - (disabled). | |
| -H:±CodeInfoEncoderCounters Statistics about code and deoptimization information. Default: - (disabled). | |
| -H:CodeInfoIndexGranularity=256 The granularity of the index for looking up code metadata. Should be a power of 2. Larger values make the index smaller, | |
| but access slower. | |
| -H:±CompilationBailoutAsFailure Treat compilation bailouts like compilation failures. Default: - (disabled). | |
| -H:CompilationCountLimit=0 The number of compilations allowed for any method before the VM exits (a value of 0 means there is no limit). | |
| -H:CompilationExpirationPeriod=300 Time limit in seconds before a compilation expires (0 to disable the limit). The compilation alarm will be implicitly | |
| disabled if assertions are enabled. | |
| -H:CompilationFailureAction=Silent Specifies the action to take when compilation fails. | |
| -H:CompilationWatchDogStackTraceInterval=60.0 | |
| Interval in seconds between a watch dog reporting stack traces for long running compilations. | |
| -H:CompilationWatchDogStartDelay=0.0 Delay in seconds before watch dog monitoring a compilation (0 disables monitoring). | |
| -H:±CompileGraalWithC1Only In tiered mode compile Graal and JVMCI using optimized first tier code. Default: + (enabled). | |
| -H:CompilerBackend="lir" Backend used by the compiler. | |
| -H:CompilerConfiguration=... Names the compiler configuration to use. If omitted, the compiler configuration with the highest auto-selection priority | |
| is used. To see the set of available configurations, supply the value 'help' to this option. Default: None | |
| -H:±ConditionalElimination Default: + (enabled). | |
| -H:ConditionalEliminationMaxIterations=4 | |
| -H:ConfigurationFileDirectories=... Directories directly containing configuration files for dynamic features at runtime. Default: None | |
| -H:ConfigurationResourceRoots=... Resource path above configuration resources for dynamic features at runtime. Default: None | |
| -H:Count=... Pattern for specifying scopes in which counters are enabled. See the Dump option for the pattern syntax. An empty value | |
| enables all counters unconditionally. Default: None | |
| -H:±CountWriteBarriers Instrument write barriers with counters. Default: - (disabled). | |
| -H:Counters=... Comma separated names of counters that are enabled irrespective of the value for Count option. An empty value enables | |
| all counters unconditionally. Default: None | |
| -H:CrashAt=... Pattern for method(s) that will trigger an exception when compiled. This option exists to test handling compilation | |
| crashes gracefully. See the MethodFilter option for the pattern syntax. A ':Bailout' suffix will raise a bailout | |
| exception and a ':PermanentBailout' suffix will raise a permanent bailout exception. Default: None | |
| -H:±DebugStubsAndSnippets Enable debug output for stub code generation and snippet preparation. Default: - (disabled). | |
| -H:±DeleteLocalSymbols Use linker option to remove all local symbols from image. Default: + (enabled). | |
| -H:±DeoptALot Default: - (disabled). | |
| -H:±DeoptAfterOSR Deoptimize OSR compiled code when the OSR entry loop is finished if there is no mature profile available for the rest of | |
| the method. Default: + (enabled). | |
| -H:±DeoptimizeAll Compiles all methods as deoptimization targets for testing. Default: - (disabled). | |
| -H:DeoptsToDisableOptimisticOptimization=40 | |
| -H:±DetailedAsserts Enable expensive assertions if normal assertions (i.e. -ea or -esa) are enabled. Default: - (disabled). | |
| -H:±DivertParameterReturningMethod Analysis: Detect methods that return one of their parameters and hardwire the parameter straight to the return. Default: | |
| + (enabled). | |
| -H:Dump=... Filter pattern for specifying scopes in which dumping is enabled. Default: None | |
| -H:DumpLLVMStackMap=... Dump contents of the generated stackmap to the specified file. Default: None | |
| -H:±DumpOnError Send compiler IR to dump handlers on error. Default: - (disabled). | |
| -H:DumpOnPhaseChange=... Dump a before and after graph if the named phase changes the graph.%nThe argument is substring matched against the | |
| simple name of the phase class. Default: None | |
| -H:DumpPath="graal_dumps" The directory where various Graal dump files are written. | |
| -H:±DumpingErrorsAreFatal Treat any exceptions during dumping as fatal. Default: - (disabled). | |
| -H:±DynamicCountersPrintGroupSeparator Use grouping separators for number printing. Default: + (enabled). | |
| -H:DynamicProxyConfigurationFiles=... One or several (comma-separated) paths to JSON files that specify lists of interfaces that define Java proxy classes. | |
| Default: None | |
| -H:DynamicProxyConfigurationResources=... Resources describing program elements to be made available for reflection (see ProxyConfigurationFiles). Default: None | |
| -H:±DynamicProxyTracing Enable trace logging for dynamic proxy. Default: - (disabled). | |
| -H:±EagerSnippets Eagerly construct extra snippet info. Default: - (disabled). | |
| -H:±EmitStringEncodingSubstitutions Emit substitutions for UTF16 and latin1 compression. Default: + (enabled). | |
| -H:±EnableAllSecurityServices Add all security service classes to the generated image. Default: - (disabled). | |
| -H:±EnableLoggingFeature Enable the feature that provides support for logging. Default: + (enabled). | |
| -H:±EnableSecurityServicesFeature Enable the feature that provides support for security services. Default: + (enabled). | |
| -H:EnableURLProtocols=... List of comma separated URL protocols to enable. Default: None | |
| -H:±EnforceMaxRuntimeCompileMethods Enforce checking of maximum number of methods allowed for runtime compilation. Useful for checking in the gate that the | |
| number of methods does not go up without a good reason. Default: - (disabled). | |
| -H:EntryPointNamePrefix="" Prefix that is added to the names of entry point methods. | |
| -H:EscapeAnalysisIterations=2 | |
| -H:EscapeAnalysisLoopCutoff=20 | |
| -H:EscapeAnalyzeOnly=... Default: None | |
| -H:ExactFullUnrollMaxNodes=800 | |
| -H:ExactPartialUnrollMaxNodes=200 | |
| -H:±ExitAfterAnalysis Exit after analysis. Default: - (disabled). | |
| -H:±ExitAfterCAPCache Exit image generation after C Annotation Processor Cache creation. Default: - (disabled). | |
| -H:±ExitVMOnException Alias for CompilationFailureAction=ExitVM. Default: - (disabled). | |
| -H:±ExtendedAsserts Enable extended asserts which slow down analysis. Default: - (disabled). | |
| -H:±FailedLoopExplosionIsFatal Do not bail out but throw an exception on failed loop explosion. Default: - (disabled). | |
| -H:FallbackExecutorClasspath=... Internal option used to specify Classpath for FallbackExecutor. Default: None | |
| -H:FallbackExecutorJavaArg=... Internal option used to specify java arguments for FallbackExecutor. Default: None | |
| -H:FallbackExecutorMainClass=... Internal option used to specify MainClass for FallbackExecutor. Default: None | |
| -H:FallbackExecutorSystemProperty=... Internal option used to specify system properties for FallbackExecutor. Default: None | |
| -H:FallbackThreshold=5 Define when fallback-image generation should be used. | |
| -H:Features=... A comma-separated list of fully qualified Feature implementation classes. Default: None | |
| -H:±FullUnroll Default: + (enabled). | |
| -H:FullUnrollConstantCompareBoost=15 | |
| -H:FullUnrollMaxIterations=600 | |
| -H:FullUnrollMaxNodes=400 | |
| -H:GCDebugStartCycle=-1 Start tracing compiled GC barriers after N garbage collections (disabled if N <= 0). | |
| -H:GCHistory=1 How much history to maintain about garbage collections. | |
| -H:±GatherSafepointStatistics Gather statistics about each safepoint. Default: - (disabled). | |
| -H:±GenLoopSafepoints Default: + (enabled). | |
| -H:±GenSafepoints Default: + (enabled). | |
| -H:±GeneratePIC Generate position independent code. Default: - (disabled). | |
| -H:±GenericDynamicCounters Turn on the benchmark counters, and displays the results on VM shutdown. Default: - (disabled). | |
| -H:±GraalArithmeticStubs Use Graal arithmetic stubs instead of HotSpot stubs where possible. Default: - (disabled). | |
| -H:GraalCompileOnly=... A filter applied to a method the VM has selected for compilation by Graal. A method not matching the filter is | |
| redirected to a lower tier compiler. The filter format is the same as for the MethodFilter option. Default: None | |
| -H:GraphCompressionThreshold=70 Graal graph compression is performed when percent of live nodes falls below this value. | |
| -H:±GreyToBlackObjRefDemographics Develop demographics of the object references visited. Default: - (disabled). | |
| -H:GreyToBlackObjectVisitorDiagnosticHistory=0 | |
| Keep history of GreyToBlackObjectVisits. 0 implies no history is kept. | |
| -H:±GuardPriorities Default: + (enabled). | |
| -H:HeapChunkHeaderPadding=0 Number of bytes at the beginning of each heap chunk that are not used for payload data, i.e., can be freely used as | |
| metadata by the heap chunk provider. | |
| -H:±HideSubstitutionStates When creating info points hide the methods of the substitutions. Default: - (disabled). | |
| -H:±HotSpotPrintInlining Print inlining optimizations. Default: - (disabled). | |
| -H:±HybridStaticContext Enable hybrid context for static methods, i.e. uses invocation site as context for static methods. Default: - | |
| (disabled). | |
| -H:ImageObjectTreeExpandRoots="" Override the default suppression of specified roots. See: REPORTS.md. | |
| -H:ImageObjectTreeExpandTypes="" Override the default suppression of specified types. See: REPORTS.md. | |
| -H:ImageObjectTreeSuppressRoots="" Suppress the expansion of specified roots. See: REPORTS.md. | |
| -H:ImageObjectTreeSuppressTypes="" Suppress the expansion of specified types. See: REPORTS.md. | |
| -H:±ImmutableCode Try to avoid emitting code where patching is required. Default: - (disabled). | |
| -H:±IncludeAllTimeZones When true, all time zones will be pre-initialized in the image. Default: - (disabled). | |
| -H:IncludeLLVMDebugInfo=0 Include debugging info in the generated image (for LLVM backend). | |
| -H:±IncludeNodeSourcePositions Track NodeSourcePositions during runtime-compilation. Default: - (disabled). | |
| -H:IncludeResourceBundles=... Comma separated list of bundles to be included into the image. Default: None | |
| -H:IncludeResources=... Regexp to match names of resources to be included in the image. Default: None | |
| -H:InitialCollectionPolicy="com.oracle.svm.core.genscavenge.CollectionPolicy$ByTime" | |
| What is the initial collection policy?. | |
| -H:±Inline Enable inlining. Default: + (enabled). | |
| -H:±InlineDuringParsing Inlines trivial methods during bytecode parsing. Default: + (enabled). | |
| -H:InlineDuringParsingMaxDepth=10 Maximum depth when inlining during bytecode parsing. | |
| -H:±InlineEverything Default: - (disabled). | |
| -H:±InlineIntrinsicsDuringParsing Inlines intrinsic methods during bytecode parsing. Default: + (enabled). | |
| -H:±InlineMegamorphicCalls Inline calls with megamorphic type profile (i.e., not all types could be recorded). Default: + (enabled). | |
| -H:±InlineMonomorphicCalls Inline calls with monomorphic type profile. Default: + (enabled). | |
| -H:±InlinePartialIntrinsicExitDuringParsing Inlines partial intrinsic exits during bytecode parsing when possible. A partial intrinsic exit is a call within an | |
| intrinsic to the method being intrinsified and denotes semantics of the original method that the intrinsic does not | |
| support. Default: + (enabled). | |
| -H:±InlinePolymorphicCalls Inline calls with polymorphic type profile. Default: + (enabled). | |
| -H:±InlineVTableStubs Default: + (enabled). | |
| -H:InliningDepthError=1000 Maximum inlining depth during partial evaluation before reporting an infinite recursion. | |
| -H:InspectServerContentPath="inspect" Path to the contents of the Inspect web server. | |
| -H:±InterceptBailout Intercept also bailout exceptions. Default: - (disabled). | |
| -H:±Intrinsify Use compiler intrinsifications. Default: + (enabled). | |
| -H:±JNI Enable Java Native Interface (JNI) support. Default: + (enabled). | |
| -H:JNIConfigurationFiles=... Files describing program elements to be made accessible via JNI (for syntax, see ReflectionConfigurationFiles). Default: | |
| None | |
| -H:JNIConfigurationResources=... Resources describing program elements to be made accessible via JNI (see JNIConfigurationFiles). Default: None | |
| -H:±JNIVerboseLookupErrors Report information about known JNI elements when lookup fails. Default: - (disabled). | |
| -H:±LIRDynMoveProfileMethod Enable dynamic move profiling per method. Default: - (disabled). | |
| -H:±LIROptConstantLoadOptimization Enable constant load optimization. | |
| -H:±LIROptControlFlowOptimizer | |
| -H:±LIROptEdgeMoveOptimizer | |
| -H:±LIROptLSRAEliminateSpillMoves Enable spill move elimination. | |
| -H:±LIROptLSRAOptimizeSpillPosition Enable spill position optimization. | |
| -H:±LIROptLSStackSlotAllocator Use linear scan stack slot allocation. | |
| -H:±LIROptNullCheckOptimizer | |
| -H:±LIROptRedundantMoveElimination | |
| -H:±LIROptStackMoveOptimizer | |
| -H:±LIROptimization Enable LIR level optimiztations. Default: + (enabled). | |
| -H:±LIRProfileMethods Enables profiling of methods. Default: - (disabled). | |
| -H:±LIRProfileMoves Enables profiling of move types on LIR level. Move types are for example stores (register to stack), constant loads | |
| (constant to register) or copies (register to register). Default: - (disabled). | |
| -H:LLVMBatchesPerThread=1 How many batches per thread should be used for LLVM compilation. 0 means a single batch, -1 means all functions | |
| separately. | |
| -H:±LSRAOptSplitOnly LSRA optimization: Only split but do not reassign. Default: - (disabled). | |
| -H:±LSRAOptimization Enable LSRA optimization. Default: - (disabled). | |
| -H:LargeArrayThreshold=0 How many bytes is enough to allocate an unaligned chunk for an array? 0 implies (AlignedHeapChunkSize / 8). | |
| -H:LimitInlinedInvokes=5.0 | |
| -H:±LimitObjectArrayLength Enable a limit for the number of objects recorded for each type of a type state before disabling heap sensitivity for | |
| that type. The analysis must be heap sensitive. Default: - (disabled). | |
| -H:LinkerRPath=... Path passed to the linker as the -rpath (list of comma-separated directories). Default: None | |
| -H:±ListMetrics Lists on the console at VM shutdown the metric names available to the Timers, Counters and MemUseTrackers options. Note | |
| that this only lists the metrics that were initialized during the VM execution and so will not include metrics for | |
| compiler code that is not executed. Default: - (disabled). | |
| -H:±LoadExceptionObjectInVM Use a VM runtime call to load and clear the exception object from the thread at the start of a compiled exception | |
| handler. Default: - (disabled). | |
| -H:Log=... Pattern for specifying scopes in which logging is enabled. See the Dump option for the pattern syntax. Default: None | |
| -H:LogFile=... File to which logging is sent. A %p in the name will be replaced with a string identifying the process, usually the | |
| process id and %t will be replaced by System.currentTimeMillis(). Default: None | |
| -H:±LogVerbose Enable more verbose log output when available. Default: - (disabled). | |
| -H:LoopHeaderAlignment=16 Alignment in bytes for loop header blocks. | |
| -H:LoopMaxUnswitch=3 | |
| -H:±LoopPeeling Default: + (enabled). | |
| -H:±LoopUnswitch Default: + (enabled). | |
| -H:LoopUnswitchFrequencyBoost=10.0 | |
| -H:LoopUnswitchMaxIncrease=500 | |
| -H:LoopUnswitchTrivial=10 | |
| -H:±MachODebugInfoTesting Test Mach-O debuginfo generation. Default: - (disabled). | |
| -H:±MatchExpressions Allow backend to match complex expressions. Default: + (enabled). | |
| -H:MaxCallingContextDepth=0 The maximum length of the methods context chains. | |
| -H:MaxCallingContextWidth=0 The maximum number of contexts to record for a method. It only affects the analysis when the max and min calling context | |
| depth are different. | |
| -H:MaxCompilationProblemsPerAction=2 The maximum number of compilation failures to handle with the action specified by CompilationFailureAction before | |
| changing to a less verbose action. This does not apply to the ExitVM action. | |
| -H:MaxConstantObjectsPerType=100 The maximum number of constant objects recorded for each type before merging the constants into one unique constant | |
| object per type. The analysis must be heap sensitive. It has a minimum value of 1. | |
| -H:MaxHeapContextDepth=0 The maximum length of the context used to model a heap object in addition to the allocation site; used only when | |
| ContextSensitiveHeap is enabled. | |
| -H:MaxHeapContextWidth=0 The maximum number of contexts to record for a heap object. It only affects the analysis when the max and min calling | |
| context depth are different. | |
| -H:MaxInvokesInTrivialMethod=1 Maximum number of invokes in a method so that it is considered trivial (for testing only). | |
| -H:MaxNodesInTrivialLeafMethod=40 Maximum number of nodes in a method so that it is considered trivial, if it does not have any invokes. | |
| -H:MaxNodesInTrivialMethod=20 Maximum number of nodes in a method so that it is considered trivial. | |
| -H:MaxObjectSetSize=100 The maximum number of objects recorded for each type of a type state before disabling heap sensitivity for that type. | |
| The analysis must be heap sensitive. It has a minimum value of 1. | |
| -H:MaxReachableTypes=-1 Maximum number of types allowed in the image. Used for tests where small number of types in necessary. | |
| -H:MaxRuntimeCompileMethods=... Maximum number of methods allowed for runtime compilation. Default: None | |
| -H:MaxTemplatesPerSnippet=50 | |
| -H:MaxUnrolledObjectZeroingStores=8 Define the maximum number of stores for which the loop that zeroes out objects is unrolled. | |
| -H:MaximumDesiredSize=20000 Maximum desired size of the compiler graph in nodes. | |
| -H:MaximumEscapeAnalysisArrayLength=128 The maximum length of an array that will be escape analyzed. | |
| -H:MaximumInliningSize=300 Inlining is explored up to this number of nodes in the graph for each call site. | |
| -H:MaximumLoopExplosionCount=10000 Max number of loop explosions per method. | |
| -H:MaximumRecursiveInlining=5 Maximum level of recursive inlining. | |
| -H:MegamorphicInliningMinMethodProbability=0.33 | |
| Minimum probability for methods to be inlined for megamorphic type profiles. | |
| -H:MemUseTrackers=... Comma separated names of memory usage trackers that are enabled irrespective of the value for TrackMemUse option. An | |
| empty value enables all memory usage trackers unconditionally. Default: None | |
| -H:Method="main" Name of the main entry point method. Optional if --shared is used. | |
| -H:MethodFilter=... Pattern for filtering debug scope output based on method context. Default: None | |
| -H:±MethodFilterRootOnly Only check MethodFilter against the root method in the context if true, otherwise check all methods. Default: - | |
| (disabled). | |
| -H:MethodInlineBailoutLimit=5000 Per-compilation method inlining exploration limit before giving up (use 0 to disable). | |
| -H:MetricsFile=... File to which metrics are dumped per compilation. Default: None | |
| -H:MetricsThreadFilter=... Only report metrics for threads whose name matches the regular expression. Default: None | |
| -H:MinCallingContextDepth=0 The minimum length of the methods context chains. | |
| -H:MinHeapContextDepth=0 The minimum length of the context used to model a heap object in addition to the allocation site; used only when | |
| ContextSensitiveHeap is enabled. | |
| -H:MinimalBulkZeroingSize=2048 If applicable, use bulk zeroing instructions when the zeroing size in bytes exceeds this threshold. | |
| -H:MinimumPeelProbability=0.35 | |
| -H:MitigateSpeculativeExecutionAttacks=None Select a strategy to mitigate speculative execution attacks (e.g., SPECTRE). | |
| -H:±MultiThreaded Enable support for threads and and thread-local variables (disable for single-threaded implementation). Default: + | |
| (enabled). | |
| -H:±MustNotSynchronizeWarningsAreFatal Warnings for @MustNotSynchronize annotations are fatal. Default: + (enabled). | |
| -H:NDCV=0 Run level for NoDeadCodeVerifyHandler (0 = off, 1 = info, 2 = verbose, 3 = fatal). | |
| -H:Name="" Name of the output file to be generated. | |
| -H:±NativeArchitecture Overrides CPUFeatures and uses the native architecture, i.e., the architecture of a machine that builds an image. | |
| NativeArchitecture takes precedence over CPUFeatures. Default: - (disabled). | |
| -H:NativeLinkerOption=... Pass the provided raw option to the linker command that produces the final binary. The possible options are platform | |
| specific and passed through without any validation. Default: None | |
| -H:±NewCAPCache Create a C Annotation Processor Cache. Will erase any previous cache at that same location. Default: - (disabled). | |
| -H:±NodeCounters Counts the number of instances of each node class. Default: - (disabled). | |
| -H:NonFatalIdenticalCompilationSnapshots=20 Number of contiguous identical compiler thread stack traces allowed before the VM exits on the basis of a stuck | |
| compilation. | |
| -H:NumberOfAnalysisThreads=-1 The number of threads to use for analysis during native image generation. The number must be smaller than the | |
| NumberOfThreads. | |
| -H:NumberOfThreads=12 The maximum number of threads to use concurrently during native image generation. | |
| -H:±OmitHotExceptionStacktrace Default: - (disabled). | |
| -H:±OptAssumptions Default: + (enabled). | |
| -H:±OptConvertDeoptsToGuards Default: + (enabled). | |
| -H:±OptDeoptimizationGrouping Default: + (enabled). | |
| -H:±OptDevirtualizeInvokesOptimistically Default: + (enabled). | |
| -H:±OptEarlyReadElimination Default: + (enabled). | |
| -H:±OptEliminateGuards Default: + (enabled). | |
| -H:±OptEliminatePartiallyRedundantGuards Default: + (enabled). | |
| -H:±OptFilterProfiledTypes Default: + (enabled). | |
| -H:±OptFloatingReads Default: + (enabled). | |
| -H:±OptImplicitNullChecks Default: + (enabled). | |
| -H:±OptLoopTransform Default: + (enabled). | |
| -H:±OptReadElimination Default: + (enabled). | |
| -H:±OptScheduleOutOfLoops Default: + (enabled). | |
| -H:Optimize=2 Control native-image code optimizations: 0 - no optimizations, 1 - basic optimizations, 2 - aggressive optimizations. | |
| -H:±PEAInliningHints Default: - (disabled). | |
| -H:PageSize=0 Define PageSize of a machine that runs the image. The default = 0 (== same as host machine page size). | |
| -H:±ParseRuntimeOptions Parse and consume standard options and system properties from the command line arguments when the VM is created. | |
| Default: + (enabled). | |
| -H:±PartialEscapeAnalysis Default: + (enabled). | |
| -H:±PartialUnroll Default: + (enabled). | |
| -H:Path="c:\Users\jniederm\src\code-one-notes\graalvm-demo\svmbuild" | |
| Directory of the image file to be generated. | |
| -H:±PreserveFramePointer Saves stack base pointer on the stack on method entry. Default: - (disabled). | |
| -H:±PrintAOTCompilation Print logging information during compilation. Default: - (disabled). | |
| -H:±PrintAnalysisCallTree Print analysis call tree, a breadth-first tree reduction of the call graph. Default: - (disabled). | |
| -H:±PrintBackendCFG Enable dumping LIR, register allocation and code generation info to the C1Visualizer. Default: + (enabled). | |
| -H:±PrintCFG Enable dumping to the C1Visualizer. Enabling this option implies PrintBackendCFG. Default: - (disabled). | |
| -H:PrintCanonicalGraphStringFlavor=0 Choose format used when dumping canonical text for graphs: 0 gives a scheduled graph (better for spotting changes | |
| involving the schedule) while 1 gives a CFG containing expressions rooted at fixed nodes (better for spotting small | |
| structure differences). | |
| -H:±PrintCanonicalGraphStrings Enable dumping canonical text from for graphs. Default: - (disabled). | |
| -H:±PrintClassInitialization Prints class initialization info for all classes detected by analysis. Default: - (disabled). | |
| -H:±PrintCompilation Print an informational line to the console for each completed compilation. Default: - (disabled). | |
| -H:±PrintFeatures Print features-specific information. Default: - (disabled). | |
| -H:PrintFlags=... Show available options based on comma-separated option-types (allowed categories: User, Expert, Debug). Default: None | |
| -H:PrintGraph=File Where IdealGraphVisualizer graph dumps triggered by Dump or DumpOnError should be written. | |
| -H:±PrintGraphFile Setting to true sets PrintGraph=file, setting to false sets PrintGraph=network. Default: + (enabled). | |
| -H:PrintGraphHost="127.0.0.1" Host part of the address to which graphs are dumped. | |
| -H:PrintGraphPort=4445 Port part of the address to which graphs are dumped in binary format. | |
| -H:±PrintGraphWithSchedule Schedule graphs as they are dumped. Default: - (disabled). | |
| -H:±PrintHeapHistogram Print class statistics of native image heap. Default: - (disabled). | |
| -H:±PrintIRWithLIR Print HIR along side LIR as the latter is generated. Default: - (disabled). | |
| -H:±PrintImageElementSizes Print the sizes of the elements of the built image. Default: - (disabled). | |
| -H:±PrintImageHeapPartitionSizes Print the sizes of the native image heap as the image is built. Default: - (disabled). | |
| -H:±PrintImageObjectTree Print boot image object hierarchy. Default: - (disabled). | |
| -H:±PrintJNIMethods Print JNI methods added to generated image. Default: - (disabled). | |
| -H:±PrintLIRWithAssembly Include the LIR as comments with the final assembly. Default: - (disabled). | |
| -H:±PrintMethodHistogram Print statistics of methods in native image heap. Default: - (disabled). | |
| -H:±PrintMustNotSynchronizePath Print path for @MustNotSynchronize warnings. Default: + (enabled). | |
| -H:±PrintMustNotSynchronizeWarnings Print warnings for @MustNotSynchronize annotations. Default: + (enabled). | |
| -H:±PrintProfilingInformation Print profiling information when parsing a method's bytecode. Default: - (disabled). | |
| -H:±PrintRestrictHeapAccessPath Print path for @RestrictHeapAccess warnings. Default: + (enabled). | |
| -H:±PrintRestrictHeapAccessWarnings Print warnings for @RestrictHeapAccess annotations. Default: + (enabled). | |
| -H:±PrintRuntimeCompileMethods Print call tree of methods available for runtime compilation. Default: - (disabled). | |
| -H:±PrintStaticTruffleBoundaries Print truffle boundaries found during the analysis. Default: - (disabled). | |
| -H:±PrintSynchronizedAnalysis Print types used for Java synchronization. Default: - (disabled). | |
| -H:±PrintTruffleExpansionHistogram Prints a histogram of all expanded Java methods. Default: - (disabled). | |
| -H:±PrintTruffleTrees Enable dumping Truffle ASTs to the IdealGraphVisualizer. Default: + (enabled). | |
| -H:±PrintUninterruptibleCalleeDOTGraph Print (to stderr) a DOT graph of the @Uninterruptible annotations. Default: - (disabled). | |
| -H:±PrintUninterruptibleWarnings Print warnings for @Uninterruptible annotations. Default: + (enabled). | |
| -H:±PrintUniverse Print information about classes, methods, and fields that are present in the native image. Default: - (disabled). | |
| -H:±ProbabilisticProfiling Control probabilistic profiling on AMD64. Default: + (enabled). | |
| -H:±ProfileAllocations Enable profiling of allocation sites. Default: - (disabled). | |
| -H:ProfileAllocationsContext=AllocatingMethod | |
| Control the naming and granularity of the counters when using ProfileAllocations. | |
| -H:±ProfileAnalysisOperations Track the progress of the static analysis. Default: - (disabled). | |
| -H:±ProfileBackedges Emit profiling of backedges. Default: + (enabled). | |
| -H:±ProfileCompiledMethods Default: - (disabled). | |
| -H:±ProfileConstantObjects Track the creation of constant objects. Default: - (disabled). | |
| -H:±ProfileDeoptimization Print logging information during object file writing. Default: - (disabled). | |
| -H:±ProfileInvokes Emit profiling of invokes. Default: + (enabled). | |
| -H:±ProfileMonitors Enable profiling of monitor operations. Default: - (disabled). | |
| -H:±ProfileSimpleMethods Profile simple methods. Default: + (enabled). | |
| -H:±RawConditionalElimination Default: + (enabled). | |
| -H:ReadEliminationMaxLoopVisits=5 | |
| -H:±ReassociateInvariants Default: + (enabled). | |
| -H:±ReduceDCE Disable optional dead code eliminations. Default: + (enabled). | |
| -H:ReflectionConfigurationFiles=... One or several (comma-separated) paths to JSON files that specify which program elements should be made available via | |
| reflection. Default: None | |
| -H:ReflectionConfigurationResources=... Resources describing program elements to be made available for reflection (see ReflectionConfigurationFiles). Default: | |
| None | |
| -H:±ReflectionPluginTracing Enable trace logging for reflection plugins. Default: - (disabled). | |
| -H:RegisterPressure=... Comma separated list of registers that register allocation is limited to. Default: None | |
| -H:±RemoveNeverExecutedCode Default: + (enabled). | |
| -H:±RemoveUnusedSymbols Use linker option to prevent unreferenced symbols in image. Default: - (disabled). | |
| -H:±ReplaceInputsWithConstantsBasedOnStamps Default: + (enabled). | |
| -H:ReportAnalysisForbiddenType=... Report error if <typename>[:<UsageKind>{,<UsageKind>}] is discovered during analysis (valid values for UsageKind: | |
| InHeap, Allocated, InTypeCheck). Default: None | |
| -H:±ReportAnalysisStatistics Report analysis statistics. Default: - (disabled). | |
| -H:±ReportExceptionStackTraces Show exception stack traces for exceptions during image building.). Default: - (disabled). | |
| -H:±ReportUnsafeOffsetWarnings Print unsafe operation offset warnings.). Default: - (disabled). | |
| -H:±ReportUnsupportedElementsAtRuntime Report usage of unsupported methods and fields at run time when they are accessed the first time, instead of as an error | |
| during image building. Default: - (disabled). | |
| -H:±ReportUnsupportedFeaturesDuringAnalysis Unsupported features are fatal. Default: + (enabled). | |
| -H:ResourceConfigurationFiles=... Files describing Java resources to be included in the image. Default: None | |
| -H:ResourceConfigurationResources=... Resources describing Java resources to be included in the image. Default: None | |
| -H:±ReturnAfterAnalysis Return after analysis. Default: - (disabled). | |
| -H:±RuntimeAssertions Enable or disable Java assert statements at run time. Default: - (disabled). | |
| -H:RuntimeAssertionsFilter=... Only use Java assert statements for classes that are matching the comma-separated list of package prefixes. Default: | |
| None | |
| -H:±ScanObjectsParallel Object scanning in parallel. Default: + (enabled). | |
| -H:±SharedLibrary Build shared library. Default: - (disabled). | |
| -H:ShowConfiguration=none Writes to the VM log information about the compiler configuration selected. | |
| -H:±ShowDumpFiles Print the name of each dump file path as it's created. Default: - (disabled). | |
| -H:±ShowSubstitutionSourceInfo Controls whether the source position information of snippets and method substitutions are exposed to HotSpot. Can be | |
| useful when profiling to get more precise position information. Default: - (disabled). | |
| -H:±SimpleFastInflatedLocking Handle simple cases for inflated monitors in the fast-path. Default: + (enabled). | |
| -H:SimpleMethodCalls=1 Maximum number of calls in a simple method. | |
| -H:SimpleMethodGraphSize=256 Maximum number of nodes in a graph for a simple method. | |
| -H:SimpleMethodIndirectCalls=0 Maximum number of indirect calls in a simple moethod. | |
| -H:SmallCompiledLowLevelGraphSize=300 If the previous low-level graph size of the method exceeds the threshold, it is not inlined. | |
| -H:±SnippetCounters Enable counters for various paths in snippets. Default: - (disabled). | |
| -H:±SpawnIsolates Support multiple isolates. . Default: + (enabled). | |
| -H:StackRedZoneSize=8192 Size (in bytes) of the red zone reserved at the end of the stack. This stack space can only be used by critical VM code | |
| and C code, e.g., to report fatal errors. | |
| -H:±StackTrace Provide method names for stack traces. Default: + (enabled). | |
| -H:StackYellowZoneSize=32768 Size (in bytes) of the yellow zone reserved at the end of the stack. This stack space is reserved for VM use and cannot | |
| be used by the application. | |
| -H:±StaticExecutable Build statically linked executable (requires static libc and zlib). Default: - (disabled). | |
| -H:±StressExplicitExceptionCode Stress the code emitting explicit exception throwing code. Default: - (disabled). | |
| -H:±StressInvokeWithExceptionNode Stress the code emitting invokes with explicit exception edges. Default: - (disabled). | |
| -H:±StressTestEarlyReads Stress the code by emitting reads at earliest instead of latest point. Default: - (disabled). | |
| -H:SubstitutionFiles=... Comma-separated list of file names with declarative substitutions. Default: None | |
| -H:SubstitutionResources=... Comma-separated list of resource file names with declarative substitutions. Default: None | |
| -H:±SupportJsrBytecodes Default: + (enabled). | |
| -H:±SupportOSRWithLocks Support OSR compilations with locks. If DeoptAfterOSR is true we can per definition not have unbalanced enter/exits | |
| mappings. If DeoptAfterOSR is false insert artificial monitor enters after the OSRStart to have balanced enter/exits | |
| in the graph. Default: + (enabled). | |
| -H:±SuppressStderr Suppress console error output for unittests. Default: - (disabled). | |
| -H:±SuppressStdout Suppress console normal output for unittests. Default: - (disabled). | |
| -H:TailDuplicationProbability=0.5 | |
| -H:TailDuplicationTrivialSize=1 | |
| -H:TempDirectory="" Directory for temporary files generated during native image generation. If this option is specified, the temporary files | |
| are not deleted so that you can inspect them after native image generation. | |
| -H:TestFile="" | |
| -H:±ThrowUnsafeOffsetErrors Throw unsafe operation offset errors.). Default: + (enabled). | |
| -H:TierABackedgeNotifyFreqLog=16 Backedge notification frequency. | |
| -H:TierABackedgeProfileProbabilityLog=12 Backedge profile probability. | |
| -H:TierAInvokeInlineeNotifyFreqLog=-1 Inlinee invocation notification frequency (-1 means count, but do not notify). | |
| -H:TierAInvokeNotifyFreqLog=13 Invocation notification frequency. | |
| -H:TierAInvokeProfileProbabilityLog=8 Invocation profile probability. | |
| -H:±TieredAOT Do profiling and callbacks to tiered runtime. Default: - (disabled). | |
| -H:Time=... Pattern for specifying scopes in which timing is enabled. See the Dump option for the pattern syntax. An empty value | |
| enables all timers unconditionally. Default: None | |
| -H:TimedDynamicCounters=-1 Turn on the benchmark counters, and displays the results every n milliseconds. | |
| -H:Timers=... Comma separated names of timers that are enabled irrespective of the value for Time option. An empty value enables all | |
| timers unconditionally. Default: None | |
| -H:TraceBytecodeParserLevel=0 The trace level for the bytecode parser. A value of 1 enables instruction tracing and any greater value emits a frame | |
| state trace just prior to each instruction trace.Instruction tracing output from multiple compiler threads will be | |
| interleaved so use of this option make most sense for single threaded compilation. The MethodFilter option can be used | |
| to refine tracing to selected methods. | |
| -H:±TraceClassInitialization Instrument code to trace and report class initialization. Default: - (disabled). | |
| -H:±TraceEscapeAnalysis Default: - (disabled). | |
| -H:±TraceExceptionHandlerStub Trace execution of stub used to handle an exception thrown by a callee. Default: - (disabled). | |
| -H:±TraceHeapVerification Trace heap verification. Default: - (disabled). | |
| -H:±TraceInlineDuringParsing Traces inlining performed during bytecode parsing. Default: - (disabled). | |
| -H:±TraceInlining Enable tracing of inlining decisions. Default: - (disabled). | |
| -H:±TraceInliningForStubsAndSnippets Enable inlining decision tracing in stubs and snippets. Default: - (disabled). | |
| -H:TraceLIRGeneratorLevel=0 The trace level for the LIR generator. | |
| -H:±TraceLoggingFeature When enabled, logging feature details are printed. Default: - (disabled). | |
| -H:TraceMonitorsMethodFilter=... Trace monitor operations in methods whose fully qualified name contains this substring. Default: None | |
| -H:TraceMonitorsTypeFilter=... Trace monitor operations on objects whose type contains this substring. Default: None | |
| -H:±TraceObjectPromotion Trace each object promotion. Default: - (disabled). | |
| -H:±TraceParserPlugins Traces use of plugins during bytecode parsing. Default: - (disabled). | |
| -H:±TraceSecurityServices Enable trace logging for the security services feature. Default: - (disabled). | |
| -H:±TraceServiceLoaderFeature When enabled, each service loader resource and class will be printed out to standard output. Default: - (disabled). | |
| -H:±TraceStackVerification Trace stack verification. Default: - (disabled). | |
| -H:±TraceTruffleAssumptions Print stack trace on assumption invalidation. Default: - (disabled). | |
| -H:±TraceTruffleCompilation Print information for compilation results. Default: - (disabled). | |
| -H:±TraceTruffleCompilationAST Print the entire AST after each compilation. Default: - (disabled). | |
| -H:±TraceTruffleCompilationCallTree Print the inlined call tree for each compiled method. Default: - (disabled). | |
| -H:±TraceTruffleCompilationDetails Print information for compilation queuing. Default: - (disabled). | |
| -H:±TraceTruffleCompilationPolymorphism Print all polymorphic and generic nodes after each compilation. Default: - (disabled). | |
| -H:±TraceTruffleExpansionSource Print source sections for printed expansion trees. Default: - (disabled). | |
| -H:±TraceTruffleInlining Print information for inlining for each compilation. Default: - (disabled). | |
| -H:±TraceTrufflePerformanceWarnings Print potential performance problems. Default: - (disabled). | |
| -H:±TraceTruffleSplitting Print information for each splitted call site. Default: - (disabled). | |
| -H:TraceTruffleStackTraceLimit=20 Number of stack trace elements printed by TraceTruffleTransferToInterpreter and TraceTruffleAssumptions. | |
| -H:±TraceTruffleTransferToInterpreter Print stack trace on transfer to interpreter. Default: - (disabled). | |
| -H:±TraceUnwindStub Trace execution of the stub that routes an exception to a handler in the calling frame. Default: - (disabled). | |
| -H:±TrackAccessChain Track the callers for methods and accessing methods for fields. Default: - (disabled). | |
| -H:±TrackInputFlows Track the input for type flows. Default: - (disabled). | |
| -H:TrackMemUse=... Pattern for specifying scopes in which memory use tracking is enabled. See the Dump option for the pattern syntax. An | |
| empty value enables all memory use trackers unconditionally. Default: None | |
| -H:±TrackNodeInsertion Track source stack trace where a node was inserted into the graph. Default: - (disabled). | |
| -H:±TrackNodeSourcePosition Track the NodeSourcePosition. Default: - (disabled). | |
| -H:TrivialInliningSize=10 Graphs with less than this number of nodes are trivial and therefore always inlined. | |
| -H:±TruffleArgumentTypeSpeculation Default: + (enabled). | |
| -H:±TruffleBackgroundCompilation Enable asynchronous truffle compilation in background thread. Default: + (enabled). | |
| -H:±TruffleCheckFrameImplementation Enforce that the Truffle runtime provides the only implementation of Frame. Default: + (enabled). | |
| -H:±TruffleCheckNeverPartOfCompilation Print a warning message and stack trace when CompilerAsserts.neverPartOfCompilation is reachable. Default: - (disabled). | |
| -H:±TruffleCompilation Enable or disable truffle compilation. Default: + (enabled). | |
| -H:±TruffleCompilationExceptionsAreFatal Treat compilation exceptions as fatal exceptions that will exit the application. Default: - (disabled). | |
| -H:±TruffleCompilationExceptionsArePrinted Prints the exception stack trace for compilation exceptions. Default: + (enabled). | |
| -H:±TruffleCompilationExceptionsAreThrown Treat compilation exceptions as thrown runtime exceptions. Default: - (disabled). | |
| -H:±TruffleCompilationStatisticDetails Print additional more verbose Truffle compilation statistics at the end of a run. Default: - (disabled). | |
| -H:±TruffleCompilationStatistics Print Truffle compilation statistics at the end of a run. Default: - (disabled). | |
| -H:TruffleCompilationThreshold=1000 Compile call target when call count exceeds this threshold. | |
| -H:±TruffleCompileImmediately Compile immediately to test truffle compiler. Default: - (disabled). | |
| -H:TruffleCompileOnly=... Restrict compilation to comma-separated list of includes (or excludes prefixed with tilde). Default: None | |
| -H:TruffleCompilerConfiguration=... Select a compiler configuration for Truffle compilation (default: use Graal system compiler configuration). Default: | |
| None | |
| -H:TruffleCompilerThreads=0 Manually set the number of compiler threads. | |
| -H:±TruffleEnableInfopoints Enable support for simple infopoints in truffle partial evaluations. Default: - (disabled). | |
| -H:±TruffleExcludeAssertions Exclude assertion code from Truffle compilations. Default: + (enabled). | |
| -H:TruffleFirstTierCompilationThreshold=100 Compile call target in the first tier when call count exceeds this threshold. | |
| -H:TruffleFirstTierMinInvokeThreshold=1 Minimum number of calls before a call target is compiled in the first tier. | |
| -H:±TruffleFunctionInlining Enable automatic inlining of call targets. Default: + (enabled). | |
| -H:±TruffleInlineAcrossTruffleBoundary Enable inlining across Truffle boundary. Default: - (disabled). | |
| -H:±TruffleInlineDuringParsing Inline trivial methods in Truffle graphs during native image generation. Default: + (enabled). | |
| -H:TruffleInliningMaxCallerSize=2250 Stop inlining if caller's cumulative tree size would exceed this limit. | |
| -H:±TruffleInstrumentBoundaries Instrument Truffle boundaries and output profiling information to the standard output. Default: - (disabled). | |
| -H:±TruffleInstrumentBoundariesPerInlineSite Instrument Truffle boundaries by considering different inlining sites as different branches. Default: - (disabled). | |
| -H:±TruffleInstrumentBranches Instrument branches and output profiling information to the standard output. Default: - (disabled). | |
| -H:±TruffleInstrumentBranchesPerInlineSite Instrument branches by considering different inlining sites as different branches. Default: - (disabled). | |
| -H:TruffleInstrumentFilter="*.*.*" Method filter for host methods in which to add instrumentation. | |
| -H:TruffleInstrumentationTableSize=10000 Maximum number of instrumentation counters available. | |
| -H:±TruffleIntrinsifyFrameAccess Intrinsify get/set/is methods of FrameWithoutBoxing to improve Truffle compilation time. Default: + (enabled). | |
| -H:TruffleInvalidationReprofileCount=3 Delay compilation after an invalidation to allow for reprofiling. | |
| -H:±TruffleIterativePartialEscape Run the partial escape analysis iteratively in Truffle compilation. Default: - (disabled). | |
| -H:±TruffleLegacySplitting Use legacy splitting heuristic. This option will be removed. Default: - (disabled). | |
| -H:TruffleMaximumRecursiveInlining=2 Maximum level of recursive inlining. | |
| -H:TruffleMinInvokeThreshold=3 Minimum number of calls before a call target is compiled. | |
| -H:±TruffleMultiTier Whether to use multiple Truffle compilation tiers by default. Default: - (disabled). | |
| -H:±TruffleOSR Enable on stack replacement for Truffle loops. Default: + (enabled). | |
| -H:TruffleOSRCompilationThreshold=100000 Number of loop iterations until on-stack-replacement compilation is triggered. | |
| -H:±TrufflePerformanceWarningsAreFatal Treat performance warnings as fatal occurrences that will exit the applications. Default: - (disabled). | |
| -H:±TruffleProfilingEnabled Enable/disable builtin profiles in com.oracle.truffle.api.profiles. Default: + (enabled). | |
| -H:TruffleReplaceReprofileCount=3 Delay compilation after a node replacement. | |
| -H:±TruffleReturnTypeSpeculation Default: + (enabled). | |
| -H:±TruffleSplitting Enable call target splitting. Default: + (enabled). | |
| -H:±TruffleSplittingAllowForcedSplits Should forced splits be allowed. Default: + (enabled). | |
| -H:±TruffleSplittingDumpDecisions Dumps to IGV information on polymorphic events. Default: - (disabled). | |
| -H:TruffleSplittingGrowthLimit=1.5 Disable call target splitting if the number of nodes created by splitting exceeds this factor times node count. | |
| -H:TruffleSplittingMaxCalleeSize=100 Disable call target splitting if tree size exceeds this limit. | |
| -H:TruffleSplittingMaxNumberOfSplitNodes=500000 | |
| Disable call target splitting if number of nodes created by splitting exceeds this limit. | |
| -H:TruffleSplittingMaxPropagationDepth=5 Propagate info about a polymorphic specialize through maximum this many call targets. | |
| -H:±TruffleSplittingTraceEvents Trace details of splitting events and decisions. Default: - (disabled). | |
| -H:TruffleTimeThreshold=50000 Defines the maximum timespan in milliseconds that is required for a call target to be queued for compilation. | |
| -H:±TruffleTraceSplittingSummary Used for debugging the splitting implementation. Prints splitting summary directly to stdout on shutdown. Default: - | |
| (disabled). | |
| -H:±TrustFinalDefaultFields Determines whether to treat final fields with default values as constant. Default: + (enabled). | |
| -H:TypeCheckMaxHints=2 The maximum number of profiled types that will be used when compiling a profiled type check. Note that | |
| TypeCheckMinProfileHitProbability also influences whether profiling info is used in compiled type checks. | |
| -H:TypeCheckMinProfileHitProbability=0.5 If the probability that a type check will hit one the profiled types (up to TypeCheckMaxHints) is below this value, the | |
| type check will be compiled without profiling info. | |
| -H:±UninterruptibleWarningsAreFatal Warnings for @Uninterruptible annotations are fatal. Default: + (enabled). | |
| -H:±UnresolvedIsError Report unresolved elements as errors. Default: + (enabled). | |
| -H:UnrollMaxIterations=16 | |
| -H:UnsafeAutomaticSubstitutionsLogLevel=1 Unsafe automatic substitutions logging level: Disabled=0, Basic=1, Info=2, Debug=3.). | |
| -H:±UnsafeOffsetWarningsAreFatal Print unsafe operation offset warnings.). Default: - (disabled). | |
| -H:±UseCAPCache Indicate the C Annotation Processor to use previously cached native information when generating C Type information. | |
| Default: - (disabled). | |
| -H:±UseCardRememberedSetHeap Use a card remembered set heap for GC. Default: + (enabled). | |
| -H:±UseCompilationStatistics Enables CompilationStatistics. Default: - (disabled). | |
| -H:±UseEncodedGraphs Encode and decode snippets and substitutions before parsing to test libgraal code path. This option is ignored in the | |
| context of libgraal. Default: - (disabled). | |
| -H:±UseExceptionProbability Default: + (enabled). | |
| -H:±UseGraalStubs Use Graal-generated stubs for complicated LIR operations instead of embedding all the emitted code. Default: + | |
| (enabled). | |
| -H:±UseIndexMasking Use index masking after bounds check to mitigate speculative execution attacks. Default: - (disabled). | |
| -H:±UseLoopLimitChecks Default: + (enabled). | |
| -H:±UseOnlyWritableBootImageHeap Use only a writable native image heap. Default: - (disabled). | |
| -H:±UseServiceLoaderFeature Automatically register services for run-time lookup using ServiceLoader. Default: + (enabled). | |
| -H:±UseSnippetGraphCache Use a cache for snippet graphs. Default: + (enabled). | |
| -H:±UseSnippetTemplateCache Use a LRU cache for snippet templates. Default: + (enabled). | |
| -H:±UseTrappingNullChecks Use traps for null checks instead of explicit null-checks. Default: + (enabled). | |
| -H:±UseTypeCheckHints Default: + (enabled). | |
| -H:UserRequestedGCPolicy="com.oracle.svm.core.genscavenge.HeapPolicy$AlwaysCollectCompletely" | |
| Policy used when users request garbage collection. | |
| -H:Verify=... Pattern for specifying scopes in which logging is enabled. See the Dump option for the pattern syntax. Default: None | |
| -H:±VerifyBalancedMonitors Emit extra code to dynamically check monitor operations are balanced. Default: - (disabled). | |
| -H:±VerifyDeoptimizationEntryPoints Verify that all possible deoptimization entry points have been properly compiled and registered in the metadata. | |
| Default: - (disabled). | |
| -H:±VerifyGraalGraphEdges Perform expensive verification of graph inputs, usages, successors and predecessors. Default: - (disabled). | |
| -H:±VerifyGraalGraphs Verify graphs often during compilation when assertions are turned on. Default: + (enabled). | |
| -H:±VerifyGraalPhasesSize Verify before - after relation of the relative, computed, code size of a graph. Default: - (disabled). | |
| -H:±VerifyHeap Verify the heap before and after each collection. Default: - (disabled). | |
| -H:±VerifyHeapAfterCollection Verify the heap after each collection. Default: - (disabled). | |
| -H:±VerifyHeapAtReturn Perform platform dependent validation of the Java heap at returns. Default: - (disabled). | |
| -H:±VerifyHeapBeforeCollection Verify the heap before each collection. Default: - (disabled). | |
| -H:±VerifyKillCFGUnusedNodes Verify that there are no new unused nodes when performing killCFG. Default: - (disabled). | |
| -H:±VerifyNamingConventions Verify naming conventions during image construction. Default: - (disabled). | |
| -H:±VerifyPhases Default: - (disabled). | |
| -H:±VerifyStackAfterCollection Verify the stack after each collection. Default: - (disabled). | |
| -H:±VerifyStackBeforeCollection Verify the stack before each collection. Default: - (disabled). | |
| -H:±ZapChunks Zap memory chunks. Default: - (disabled). | |
| -H:±ZapConsumedHeapChunks Zap consumed memory chunks. Default: - (disabled). | |
| -H:±ZapProducedHeapChunks Zap produced memory chunks. Default: - (disabled). | |
| -H:±ZapStackOnMethodEntry Default: - (disabled). | |
| -R:AOTInliningDepthToSizeRate=2.5 | |
| -R:AOTInliningSizeMaximum=300 | |
| -R:AOTInliningSizeMinimum=50 | |
| -R:ASMInstructionProfiling=... Enables instruction profiling on assembler level. Valid values are a comma separated list of supported instructions. | |
| Compare with subclasses of Assembler.InstructionCounter. Default: None | |
| -R:±AbortOnBenchmarkCounterOverflow Abort VM with SIGILL if benchmark counters controlled by the (Generic|Timed|Benchmark)DynamicCounters. Default: - | |
| (disabled). | |
| -R:AggregatedMetricsFile=... File to which aggregated metrics are dumped at shutdown. A CSV format is used if the file ends with .csv otherwise a | |
| more human readable format is used. If not specified, metrics are dumped to the console. Default: None | |
| -R:AllocationProfilingThreshold=1048576 The minimum size in bytes required for printing an allocation profiling entry. | |
| -R:±AllocationSiteSensitiveHeap A context sensitive heap means that each heap allocated object is modeled by using at least the allocation site. | |
| Default: - (disabled). | |
| -R:±AlwaysInlineIntrinsics Unconditionally inline intrinsics. Default: - (disabled). | |
| -R:±AlwaysInlineVTableStubs Default: - (disabled). | |
| -R:AnalysisContextSensitivity="insens" Controls the static analysis context sensitivity. Available values: insens (context insensitive analysis), allocsens | |
| (context insensitive analysis, context insensitive heap, allocation site sensitive heap), _1obj (1 object sensitive | |
| analysis with a context insensitive heap), _2obj1h (2 object sensitive with a 1 context sensitive heap). | |
| -R:AnalysisSizeCutoff=8 The maximum size of type and method profiles returned by the static analysis. -1 indicates no limitation. | |
| -R:±BenchmarkCountersDumpDynamic Dump dynamic counters. Default: + (enabled). | |
| -R:±BenchmarkCountersDumpStatic Dump static counters. Default: - (disabled). | |
| -R:BenchmarkCountersFile=... File to which benchmark counters are dumped. A CSV format is used if the file ends with .csv otherwise a more human | |
| readable format is used. The fields in the CSV format are: category, group, name, value. Default: None | |
| -R:BenchmarkDynamicCounters=... Turn on the benchmark counters. The format of this option is:. Default: None | |
| -R:±BootstrapInitializeOnly Do not compile anything on bootstrap but just initialize the compiler. Default: - (disabled). | |
| -R:BootstrapTimeout=15.0 Maximum time in minutes to spend bootstrapping (0 to disable this limit). | |
| -R:BootstrapWatchDogCriticalRateRatio=0.25 Ratio of the maximum compilation rate below which the bootstrap compilation rate must not fall (0 or less disables | |
| monitoring). | |
| -R:±CanOmitFrame Default: + (enabled). | |
| -R:±CanonicalGraphStringsCheckConstants Exclude virtual nodes when dumping canonical text for graphs. Default: - (disabled). | |
| -R:±CanonicalGraphStringsExcludeVirtuals Exclude virtual nodes when dumping canonical text for graphs. Default: + (enabled). | |
| -R:±CanonicalGraphStringsRemoveIdentities Attempts to remove object identity hashes when dumping canonical text for graphs. Default: + (enabled). | |
| -R:±ClearMetricsAfterBootstrap Clear the debug metrics after bootstrap. Default: - (disabled). | |
| -R:±CompilationBailoutAsFailure Treat compilation bailouts like compilation failures. Default: - (disabled). | |
| -R:CompilationCountLimit=0 The number of compilations allowed for any method before the VM exits (a value of 0 means there is no limit). | |
| -R:CompilationExpirationPeriod=300 Time limit in seconds before a compilation expires (0 to disable the limit). The compilation alarm will be implicitly | |
| disabled if assertions are enabled. | |
| -R:CompilationFailureAction=Silent Specifies the action to take when compilation fails. | |
| -R:CompilationWatchDogStackTraceInterval=60.0 | |
| Interval in seconds between a watch dog reporting stack traces for long running compilations. | |
| -R:CompilationWatchDogStartDelay=0.0 Delay in seconds before watch dog monitoring a compilation (0 disables monitoring). | |
| -R:±CompileGraalWithC1Only In tiered mode compile Graal and JVMCI using optimized first tier code. Default: + (enabled). | |
| -R:CompilerConfiguration=... Names the compiler configuration to use. If omitted, the compiler configuration with the highest auto-selection priority | |
| is used. To see the set of available configurations, supply the value 'help' to this option. Default: None | |
| -R:±ConditionalElimination Default: + (enabled). | |
| -R:ConditionalEliminationMaxIterations=4 | |
| -R:Count=... Pattern for specifying scopes in which counters are enabled. See the Dump option for the pattern syntax. An empty value | |
| enables all counters unconditionally. Default: None | |
| -R:Counters=... Comma separated names of counters that are enabled irrespective of the value for Count option. An empty value enables | |
| all counters unconditionally. Default: None | |
| -R:CrashAt=... Pattern for method(s) that will trigger an exception when compiled. This option exists to test handling compilation | |
| crashes gracefully. See the MethodFilter option for the pattern syntax. A ':Bailout' suffix will raise a bailout | |
| exception and a ':PermanentBailout' suffix will raise a permanent bailout exception. Default: None | |
| -R:±DebugStubsAndSnippets Enable debug output for stub code generation and snippet preparation. Default: - (disabled). | |
| -R:±DeoptALot Default: - (disabled). | |
| -R:±DeoptAfterOSR Deoptimize OSR compiled code when the OSR entry loop is finished if there is no mature profile available for the rest of | |
| the method. Default: + (enabled). | |
| -R:DeoptsToDisableOptimisticOptimization=40 | |
| -R:±DetailedAsserts Enable expensive assertions if normal assertions (i.e. -ea or -esa) are enabled. Default: - (disabled). | |
| -R:±DivertParameterReturningMethod Analysis: Detect methods that return one of their parameters and hardwire the parameter straight to the return. Default: | |
| + (enabled). | |
| -R:Dump=... Filter pattern for specifying scopes in which dumping is enabled. Default: None | |
| -R:±DumpOnError Send compiler IR to dump handlers on error. Default: - (disabled). | |
| -R:DumpOnPhaseChange=... Dump a before and after graph if the named phase changes the graph.%nThe argument is substring matched against the | |
| simple name of the phase class. Default: None | |
| -R:DumpPath="graal_dumps" The directory where various Graal dump files are written. | |
| -R:±DumpingErrorsAreFatal Treat any exceptions during dumping as fatal. Default: - (disabled). | |
| -R:±DynamicCountersPrintGroupSeparator Use grouping separators for number printing. Default: + (enabled). | |
| -R:±EagerSnippets Eagerly construct extra snippet info. Default: - (disabled). | |
| -R:EscapeAnalysisIterations=2 | |
| -R:EscapeAnalysisLoopCutoff=20 | |
| -R:EscapeAnalyzeOnly=... Default: None | |
| -R:ExactFullUnrollMaxNodes=800 | |
| -R:ExactPartialUnrollMaxNodes=200 | |
| -R:±ExitVMOnException Alias for CompilationFailureAction=ExitVM. Default: - (disabled). | |
| -R:±ExtendedAsserts Enable extended asserts which slow down analysis. Default: - (disabled). | |
| -R:±FailedLoopExplosionIsFatal Do not bail out but throw an exception on failed loop explosion. Default: - (disabled). | |
| -R:FallbackExecutorRuntimeJavaArg=... Internal option used to specify runtime java arguments for FallbackExecutor. Default: None | |
| -R:±ForceDumpGraphsBeforeCompilation Force-dump graphs before compilation. Default: - (disabled). | |
| -R:±FullUnroll Default: + (enabled). | |
| -R:FullUnrollConstantCompareBoost=15 | |
| -R:FullUnrollMaxIterations=600 | |
| -R:FullUnrollMaxNodes=400 | |
| -R:GCDebugStartCycle=-1 Start tracing compiled GC barriers after N garbage collections (disabled if N <= 0). | |
| -R:±GenLoopSafepoints Default: + (enabled). | |
| -R:±GenSafepoints Default: + (enabled). | |
| -R:±GeneratePIC Generate position independent code. Default: - (disabled). | |
| -R:±GenericDynamicCounters Turn on the benchmark counters, and displays the results on VM shutdown. Default: - (disabled). | |
| -R:±GraalArithmeticStubs Use Graal arithmetic stubs instead of HotSpot stubs where possible. Default: - (disabled). | |
| -R:GraalCompileOnly=... A filter applied to a method the VM has selected for compilation by Graal. A method not matching the filter is | |
| redirected to a lower tier compiler. The filter format is the same as for the MethodFilter option. Default: None | |
| -R:GraphCompressionThreshold=70 Graal graph compression is performed when percent of live nodes falls below this value. | |
| -R:±GuardPriorities Default: + (enabled). | |
| -R:±HeapVerificationFailureIsFatal Verify the heap before and after each collection. Default: + (enabled). | |
| -R:±HideSubstitutionStates When creating info points hide the methods of the substitutions. Default: - (disabled). | |
| -R:±HotSpotPrintInlining Print inlining optimizations. Default: - (disabled). | |
| -R:±HybridStaticContext Enable hybrid context for static methods, i.e. uses invocation site as context for static methods. Default: - | |
| (disabled). | |
| -R:ImageObjectTreeExpandRoots="" Override the default suppression of specified roots. See: REPORTS.md. | |
| -R:ImageObjectTreeExpandTypes="" Override the default suppression of specified types. See: REPORTS.md. | |
| -R:ImageObjectTreeSuppressRoots="" Suppress the expansion of specified roots. See: REPORTS.md. | |
| -R:ImageObjectTreeSuppressTypes="" Suppress the expansion of specified types. See: REPORTS.md. | |
| -R:±ImmutableCode Try to avoid emitting code where patching is required. Default: - (disabled). | |
| -R:±Inline Enable inlining. Default: + (enabled). | |
| -R:±InlineDuringParsing Inlines trivial methods during bytecode parsing. Default: + (enabled). | |
| -R:InlineDuringParsingMaxDepth=10 Maximum depth when inlining during bytecode parsing. | |
| -R:±InlineEverything Default: - (disabled). | |
| -R:±InlineIntrinsicsDuringParsing Inlines intrinsic methods during bytecode parsing. Default: + (enabled). | |
| -R:±InlineMegamorphicCalls Inline calls with megamorphic type profile (i.e., not all types could be recorded). Default: + (enabled). | |
| -R:±InlineMonomorphicCalls Inline calls with monomorphic type profile. Default: + (enabled). | |
| -R:±InlinePartialIntrinsicExitDuringParsing Inlines partial intrinsic exits during bytecode parsing when possible. A partial intrinsic exit is a call within an | |
| intrinsic to the method being intrinsified and denotes semantics of the original method that the intrinsic does not | |
| support. Default: + (enabled). | |
| -R:±InlinePolymorphicCalls Inline calls with polymorphic type profile. Default: + (enabled). | |
| -R:±InlineVTableStubs Default: + (enabled). | |
| -R:InliningDepthError=1000 Maximum inlining depth during partial evaluation before reporting an infinite recursion. | |
| -R:InspectServerContentPath="inspect" Path to the contents of the Inspect web server. | |
| -R:±InstallSegfaultHandler Install segfault handler that prints register contents and full Java stacktrace. Default: enabled for an executable, | |
| disabled for a shared library. | |
| -R:±InterceptBailout Intercept also bailout exceptions. Default: - (disabled). | |
| -R:±Intrinsify Use compiler intrinsifications. Default: + (enabled). | |
| -R:±LIRDynMoveProfileMethod Enable dynamic move profiling per method. Default: - (disabled). | |
| -R:±LIROptConstantLoadOptimization Enable constant load optimization. | |
| -R:±LIROptControlFlowOptimizer | |
| -R:±LIROptEdgeMoveOptimizer | |
| -R:±LIROptLSRAEliminateSpillMoves Enable spill move elimination. | |
| -R:±LIROptLSRAOptimizeSpillPosition Enable spill position optimization. | |
| -R:±LIROptLSStackSlotAllocator Use linear scan stack slot allocation. | |
| -R:±LIROptNullCheckOptimizer | |
| -R:±LIROptRedundantMoveElimination | |
| -R:±LIROptStackMoveOptimizer | |
| -R:±LIROptimization Enable LIR level optimiztations. Default: + (enabled). | |
| -R:±LIRProfileMethods Enables profiling of methods. Default: - (disabled). | |
| -R:±LIRProfileMoves Enables profiling of move types on LIR level. Move types are for example stores (register to stack), constant loads | |
| (constant to register) or copies (register to register). Default: - (disabled). | |
| -R:±LSRAOptSplitOnly LSRA optimization: Only split but do not reassign. Default: - (disabled). | |
| -R:±LSRAOptimization Enable LSRA optimization. Default: - (disabled). | |
| -R:LimitInlinedInvokes=5.0 | |
| -R:±LimitObjectArrayLength Enable a limit for the number of objects recorded for each type of a type state before disabling heap sensitivity for | |
| that type. The analysis must be heap sensitive. Default: - (disabled). | |
| -R:±ListMetrics Lists on the console at VM shutdown the metric names available to the Timers, Counters and MemUseTrackers options. Note | |
| that this only lists the metrics that were initialized during the VM execution and so will not include metrics for | |
| compiler code that is not executed. Default: - (disabled). | |
| -R:±LoadExceptionObjectInVM Use a VM runtime call to load and clear the exception object from the thread at the start of a compiled exception | |
| handler. Default: - (disabled). | |
| -R:Log=... Pattern for specifying scopes in which logging is enabled. See the Dump option for the pattern syntax. Default: None | |
| -R:LogFile=... File to which logging is sent. A %p in the name will be replaced with a string identifying the process, usually the | |
| process id and %t will be replaced by System.currentTimeMillis(). Default: None | |
| -R:±LogVerbose Enable more verbose log output when available. Default: - (disabled). | |
| -R:LoopHeaderAlignment=16 Alignment in bytes for loop header blocks. | |
| -R:LoopMaxUnswitch=3 | |
| -R:±LoopPeeling Default: + (enabled). | |
| -R:±LoopUnswitch Default: + (enabled). | |
| -R:LoopUnswitchFrequencyBoost=10.0 | |
| -R:LoopUnswitchMaxIncrease=500 | |
| -R:LoopUnswitchTrivial=10 | |
| -R:±MatchExpressions Allow backend to match complex expressions. Default: + (enabled). | |
| -R:MaxCallingContextDepth=0 The maximum length of the methods context chains. | |
| -R:MaxCallingContextWidth=0 The maximum number of contexts to record for a method. It only affects the analysis when the max and min calling context | |
| depth are different. | |
| -R:MaxCompilationProblemsPerAction=2 The maximum number of compilation failures to handle with the action specified by CompilationFailureAction before | |
| changing to a less verbose action. This does not apply to the ExitVM action. | |
| -R:MaxConstantObjectsPerType=100 The maximum number of constant objects recorded for each type before merging the constants into one unique constant | |
| object per type. The analysis must be heap sensitive. It has a minimum value of 1. | |
| -R:MaxHeapContextDepth=0 The maximum length of the context used to model a heap object in addition to the allocation site; used only when | |
| ContextSensitiveHeap is enabled. | |
| -R:MaxHeapContextWidth=0 The maximum number of contexts to record for a heap object. It only affects the analysis when the max and min calling | |
| context depth are different. | |
| -R:MaxObjectSetSize=100 The maximum number of objects recorded for each type of a type state before disabling heap sensitivity for that type. | |
| The analysis must be heap sensitive. It has a minimum value of 1. | |
| -R:MaxTemplatesPerSnippet=50 | |
| -R:MaximumDesiredSize=20000 Maximum desired size of the compiler graph in nodes. | |
| -R:MaximumEscapeAnalysisArrayLength=128 The maximum length of an array that will be escape analyzed. | |
| -R:MaximumHeapSizePercent=80 The maximum heap size as percent of physical memory. | |
| -R:MaximumInliningSize=300 Inlining is explored up to this number of nodes in the graph for each call site. | |
| -R:MaximumLoopExplosionCount=10000 Max number of loop explosions per method. | |
| -R:MaximumRecursiveInlining=5 Maximum level of recursive inlining. | |
| -R:MaximumYoungGenerationSizePercent=10 The maximum size of the young generation as a percent of the maximum heap size. | |
| -R:MegamorphicInliningMinMethodProbability=0.33 | |
| Minimum probability for methods to be inlined for megamorphic type profiles. | |
| -R:MemUseTrackers=... Comma separated names of memory usage trackers that are enabled irrespective of the value for TrackMemUse option. An | |
| empty value enables all memory usage trackers unconditionally. Default: None | |
| -R:MethodFilter=... Pattern for filtering debug scope output based on method context. Default: None | |
| -R:±MethodFilterRootOnly Only check MethodFilter against the root method in the context if true, otherwise check all methods. Default: - | |
| (disabled). | |
| -R:MethodInlineBailoutLimit=5000 Per-compilation method inlining exploration limit before giving up (use 0 to disable). | |
| -R:MetricsFile=... File to which metrics are dumped per compilation. Default: None | |
| -R:MetricsThreadFilter=... Only report metrics for threads whose name matches the regular expression. Default: None | |
| -R:MinCallingContextDepth=0 The minimum length of the methods context chains. | |
| -R:MinHeapContextDepth=0 The minimum length of the context used to model a heap object in addition to the allocation site; used only when | |
| ContextSensitiveHeap is enabled. | |
| -R:MinimalBulkZeroingSize=2048 If applicable, use bulk zeroing instructions when the zeroing size in bytes exceeds this threshold. | |
| -R:MinimumPeelProbability=0.35 | |
| -R:MitigateSpeculativeExecutionAttacks=None Select a strategy to mitigate speculative execution attacks (e.g., SPECTRE). | |
| -R:NDCV=0 Run level for NoDeadCodeVerifyHandler (0 = off, 1 = info, 2 = verbose, 3 = fatal). | |
| -R:±NodeCounters Counts the number of instances of each node class. Default: - (disabled). | |
| -R:NonFatalIdenticalCompilationSnapshots=20 Number of contiguous identical compiler thread stack traces allowed before the VM exits on the basis of a stuck | |
| compilation. | |
| -R:±OmitHotExceptionStacktrace Default: - (disabled). | |
| -R:±OptAssumptions Default: + (enabled). | |
| -R:±OptConvertDeoptsToGuards Default: + (enabled). | |
| -R:±OptDeoptimizationGrouping Default: + (enabled). | |
| -R:±OptDevirtualizeInvokesOptimistically Default: + (enabled). | |
| -R:±OptEarlyReadElimination Default: + (enabled). | |
| -R:±OptEliminateGuards Default: + (enabled). | |
| -R:±OptEliminatePartiallyRedundantGuards Default: + (enabled). | |
| -R:±OptFilterProfiledTypes Default: + (enabled). | |
| -R:±OptFloatingReads Default: + (enabled). | |
| -R:±OptImplicitNullChecks Default: + (enabled). | |
| -R:±OptLoopTransform Default: + (enabled). | |
| -R:±OptReadElimination Default: + (enabled). | |
| -R:±OptScheduleOutOfLoops Default: + (enabled). | |
| -R:±PEAInliningHints Default: - (disabled). | |
| -R:±PartialEscapeAnalysis Default: + (enabled). | |
| -R:±PartialUnroll Default: + (enabled). | |
| -R:PercentTimeInIncrementalCollection=50 Percentage of time that should be spent in young generation collections. | |
| -R:±PrintAnalysisCallTree Print analysis call tree, a breadth-first tree reduction of the call graph. Default: - (disabled). | |
| -R:±PrintBackendCFG Enable dumping LIR, register allocation and code generation info to the C1Visualizer. Default: + (enabled). | |
| -R:±PrintCFG Enable dumping to the C1Visualizer. Enabling this option implies PrintBackendCFG. Default: - (disabled). | |
| -R:PrintCanonicalGraphStringFlavor=0 Choose format used when dumping canonical text for graphs: 0 gives a scheduled graph (better for spotting changes | |
| involving the schedule) while 1 gives a CFG containing expressions rooted at fixed nodes (better for spotting small | |
| structure differences). | |
| -R:±PrintCanonicalGraphStrings Enable dumping canonical text from for graphs. Default: - (disabled). | |
| -R:±PrintCompilation Print an informational line to the console for each completed compilation. Default: - (disabled). | |
| -R:±PrintDetailedAllocationProfiling Print detailed information for each allocation site. Default: + (enabled). | |
| -R:PrintFlags=... Show available options based on comma-separated option-types (allowed categories: User, Expert, Debug). Default: None | |
| -R:±PrintGC Print summary GC information after each collection. Default: - (disabled). | |
| -R:±PrintGCSummary Print summary GC information after main completion. Default: - (disabled). | |
| -R:±PrintGCTimeStamps Print a time stamp at each collection, if +PrintGC or +VerboseGC. Default: - (disabled). | |
| -R:±PrintGCTimes Print the time for each of the phases of each collection, if +VerboseGC. Default: - (disabled). | |
| -R:PrintGraph=File Where IdealGraphVisualizer graph dumps triggered by Dump or DumpOnError should be written. | |
| -R:±PrintGraphFile Setting to true sets PrintGraph=file, setting to false sets PrintGraph=network. Default: + (enabled). | |
| -R:PrintGraphHost="127.0.0.1" Host part of the address to which graphs are dumped. | |
| -R:PrintGraphPort=4445 Port part of the address to which graphs are dumped in binary format. | |
| -R:±PrintGraphWithSchedule Schedule graphs as they are dumped. Default: - (disabled). | |
| -R:±PrintHeapShape Print the shape of the heap before and after each collection, if +VerboseGC. Default: - (disabled). | |
| -R:±PrintIRWithLIR Print HIR along side LIR as the latter is generated. Default: - (disabled). | |
| -R:±PrintImageObjectTree Print boot image object hierarchy. Default: - (disabled). | |
| -R:±PrintLIRWithAssembly Include the LIR as comments with the final assembly. Default: - (disabled). | |
| -R:±PrintProfilingInformation Print profiling information when parsing a method's bytecode. Default: - (disabled). | |
| -R:±PrintSynchronizedAnalysis Print types used for Java synchronization. Default: - (disabled). | |
| -R:±PrintTruffleExpansionHistogram Prints a histogram of all expanded Java methods. Default: - (disabled). | |
| -R:±PrintTruffleTrees Enable dumping Truffle ASTs to the IdealGraphVisualizer. Default: + (enabled). | |
| -R:±ProbabilisticProfiling Control probabilistic profiling on AMD64. Default: + (enabled). | |
| -R:±ProfileAllocations Enable profiling of allocation sites. Default: - (disabled). | |
| -R:ProfileAllocationsContext=AllocatingMethod | |
| Control the naming and granularity of the counters when using ProfileAllocations. | |
| -R:±ProfileAnalysisOperations Track the progress of the static analysis. Default: - (disabled). | |
| -R:±ProfileBackedges Emit profiling of backedges. Default: + (enabled). | |
| -R:±ProfileCompiledMethods Default: - (disabled). | |
| -R:±ProfileConstantObjects Track the creation of constant objects. Default: - (disabled). | |
| -R:±ProfileInvokes Emit profiling of invokes. Default: + (enabled). | |
| -R:±ProfileMonitors Enable profiling of monitor operations. Default: - (disabled). | |
| -R:±ProfileSimpleMethods Profile simple methods. Default: + (enabled). | |
| -R:±RawConditionalElimination Default: + (enabled). | |
| -R:ReadEliminationMaxLoopVisits=5 | |
| -R:±ReassociateInvariants Default: + (enabled). | |
| -R:±ReduceDCE Disable optional dead code eliminations. Default: + (enabled). | |
| -R:RegisterPressure=... Comma separated list of registers that register allocation is limited to. Default: None | |
| -R:±RemoveNeverExecutedCode Default: + (enabled). | |
| -R:±ReplaceInputsWithConstantsBasedOnStamps Default: + (enabled). | |
| -R:±ReportAnalysisStatistics Report analysis statistics. Default: - (disabled). | |
| -R:±ReportUnsupportedFeaturesDuringAnalysis Unsupported features are fatal. Default: + (enabled). | |
| -R:±SafepointPromptnessFailureIsFatal Are safepoint promptness failures fatal?. Default: + (enabled). | |
| -R:SafepointPromptnessFailureNanos=0 Exit the VM if I can not come to a safepoint in this many nanoseconds. 0 implies forever. | |
| -R:SafepointPromptnessWarningNanos=0 Print a warning if I can not come to a safepoint in this many nanoseconds. 0 implies forever. | |
| -R:±ScanObjectsParallel Object scanning in parallel. Default: + (enabled). | |
| -R:ShowConfiguration=none Writes to the VM log information about the compiler configuration selected. | |
| -R:±ShowDumpFiles Print the name of each dump file path as it's created. Default: - (disabled). | |
| -R:±ShowSubstitutionSourceInfo Controls whether the source position information of snippets and method substitutions are exposed to HotSpot. Can be | |
| useful when profiling to get more precise position information. Default: - (disabled). | |
| -R:±SimpleFastInflatedLocking Handle simple cases for inflated monitors in the fast-path. Default: + (enabled). | |
| -R:SimpleMethodCalls=1 Maximum number of calls in a simple method. | |
| -R:SimpleMethodGraphSize=256 Maximum number of nodes in a graph for a simple method. | |
| -R:SimpleMethodIndirectCalls=0 Maximum number of indirect calls in a simple moethod. | |
| -R:SmallCompiledLowLevelGraphSize=300 If the previous low-level graph size of the method exceeds the threshold, it is not inlined. | |
| -R:±SnippetCounters Enable counters for various paths in snippets. Default: - (disabled). | |
| -R:±StressExplicitExceptionCode Stress the code emitting explicit exception throwing code. Default: - (disabled). | |
| -R:±StressInvokeWithExceptionNode Stress the code emitting invokes with explicit exception edges. Default: - (disabled). | |
| -R:±StressTestEarlyReads Stress the code by emitting reads at earliest instead of latest point. Default: - (disabled). | |
| -R:±SupportJsrBytecodes Default: + (enabled). | |
| -R:±SupportOSRWithLocks Support OSR compilations with locks. If DeoptAfterOSR is true we can per definition not have unbalanced enter/exits | |
| mappings. If DeoptAfterOSR is false insert artificial monitor enters after the OSRStart to have balanced enter/exits | |
| in the graph. Default: + (enabled). | |
| -R:TailDuplicationProbability=0.5 | |
| -R:TailDuplicationTrivialSize=1 | |
| -R:TearDownFailureNanos=0 The number of nanoseconds before tearing down an isolate gives a failure message. 0 implies no message. | |
| -R:TearDownWarningNanos=0 The number of nanoseconds before and between which tearing down an isolate gives a warning message. 0 implies no | |
| warning. | |
| -R:TierABackedgeNotifyFreqLog=16 Backedge notification frequency. | |
| -R:TierABackedgeProfileProbabilityLog=12 Backedge profile probability. | |
| -R:TierAInvokeInlineeNotifyFreqLog=-1 Inlinee invocation notification frequency (-1 means count, but do not notify). | |
| -R:TierAInvokeNotifyFreqLog=13 Invocation notification frequency. | |
| -R:TierAInvokeProfileProbabilityLog=8 Invocation profile probability. | |
| -R:±TieredAOT Do profiling and callbacks to tiered runtime. Default: - (disabled). | |
| -R:Time=... Pattern for specifying scopes in which timing is enabled. See the Dump option for the pattern syntax. An empty value | |
| enables all timers unconditionally. Default: None | |
| -R:TimedDynamicCounters=-1 Turn on the benchmark counters, and displays the results every n milliseconds. | |
| -R:Timers=... Comma separated names of timers that are enabled irrespective of the value for Time option. An empty value enables all | |
| timers unconditionally. Default: None | |
| -R:TraceBytecodeParserLevel=0 The trace level for the bytecode parser. A value of 1 enables instruction tracing and any greater value emits a frame | |
| state trace just prior to each instruction trace.Instruction tracing output from multiple compiler threads will be | |
| interleaved so use of this option make most sense for single threaded compilation. The MethodFilter option can be used | |
| to refine tracing to selected methods. | |
| -R:±TraceCodeCache Print logging information for runtime code cache modifications. Default: - (disabled). | |
| -R:±TraceDeoptimization Print logging information for every deoptimization. Default: - (disabled). | |
| -R:±TraceDeoptimizationDetails Print verbose logging information for every deoptimization. Default: - (disabled). | |
| -R:±TraceEscapeAnalysis Default: - (disabled). | |
| -R:±TraceExceptionHandlerStub Trace execution of stub used to handle an exception thrown by a callee. Default: - (disabled). | |
| -R:±TraceHeapChunks Trace heap chunks during collections, if +VerboseGC and +PrintHeapShape. Default: - (disabled). | |
| -R:±TraceInlineDuringParsing Traces inlining performed during bytecode parsing. Default: - (disabled). | |
| -R:±TraceInlining Enable tracing of inlining decisions. Default: - (disabled). | |
| -R:±TraceInliningForStubsAndSnippets Enable inlining decision tracing in stubs and snippets. Default: - (disabled). | |
| -R:TraceLIRGeneratorLevel=0 The trace level for the LIR generator. | |
| -R:TraceMonitorsMethodFilter=... Trace monitor operations in methods whose fully qualified name contains this substring. Default: None | |
| -R:TraceMonitorsTypeFilter=... Trace monitor operations on objects whose type contains this substring. Default: None | |
| -R:±TraceParserPlugins Traces use of plugins during bytecode parsing. Default: - (disabled). | |
| -R:±TraceTruffleAssumptions Print stack trace on assumption invalidation. Default: - (disabled). | |
| -R:±TraceTruffleCompilation Print information for compilation results. Default: - (disabled). | |
| -R:±TraceTruffleCompilationAST Print the entire AST after each compilation. Default: - (disabled). | |
| -R:±TraceTruffleCompilationCallTree Print the inlined call tree for each compiled method. Default: - (disabled). | |
| -R:±TraceTruffleCompilationDetails Print information for compilation queuing. Default: - (disabled). | |
| -R:±TraceTruffleCompilationPolymorphism Print all polymorphic and generic nodes after each compilation. Default: - (disabled). | |
| -R:±TraceTruffleExpansionSource Print source sections for printed expansion trees. Default: - (disabled). | |
| -R:±TraceTruffleInlining Print information for inlining for each compilation. Default: - (disabled). | |
| -R:±TraceTrufflePerformanceWarnings Print potential performance problems. Default: - (disabled). | |
| -R:±TraceTruffleSplitting Print information for each splitted call site. Default: - (disabled). | |
| -R:TraceTruffleStackTraceLimit=20 Number of stack trace elements printed by TraceTruffleTransferToInterpreter and TraceTruffleAssumptions. | |
| -R:±TraceTruffleTransferToInterpreter Print stack trace on transfer to interpreter. Default: - (disabled). | |
| -R:±TraceUnwindStub Trace execution of the stub that routes an exception to a handler in the calling frame. Default: - (disabled). | |
| -R:±TraceVMOperations Trace VMOperation execution. Default: - (disabled). | |
| -R:±TrackAccessChain Track the callers for methods and accessing methods for fields. Default: - (disabled). | |
| -R:±TrackInputFlows Track the input for type flows. Default: - (disabled). | |
| -R:TrackMemUse=... Pattern for specifying scopes in which memory use tracking is enabled. See the Dump option for the pattern syntax. An | |
| empty value enables all memory use trackers unconditionally. Default: None | |
| -R:±TrackNodeInsertion Track source stack trace where a node was inserted into the graph. Default: - (disabled). | |
| -R:±TrackNodeSourcePosition Track the NodeSourcePosition. Default: - (disabled). | |
| -R:TrivialInliningSize=10 Graphs with less than this number of nodes are trivial and therefore always inlined. | |
| -R:±TruffleArgumentTypeSpeculation Default: + (enabled). | |
| -R:±TruffleBackgroundCompilation Enable asynchronous truffle compilation in background thread. Default: + (enabled). | |
| -R:±TruffleCompilation Enable or disable truffle compilation. Default: + (enabled). | |
| -R:±TruffleCompilationExceptionsAreFatal Treat compilation exceptions as fatal exceptions that will exit the application. Default: - (disabled). | |
| -R:±TruffleCompilationExceptionsArePrinted Prints the exception stack trace for compilation exceptions. Default: + (enabled). | |
| -R:±TruffleCompilationExceptionsAreThrown Treat compilation exceptions as thrown runtime exceptions. Default: - (disabled). | |
| -R:±TruffleCompilationStatisticDetails Print additional more verbose Truffle compilation statistics at the end of a run. Default: - (disabled). | |
| -R:±TruffleCompilationStatistics Print Truffle compilation statistics at the end of a run. Default: - (disabled). | |
| -R:TruffleCompilationThreshold=1000 Compile call target when call count exceeds this threshold. | |
| -R:±TruffleCompileImmediately Compile immediately to test truffle compiler. Default: - (disabled). | |
| -R:TruffleCompileOnly=... Restrict compilation to comma-separated list of includes (or excludes prefixed with tilde). Default: None | |
| -R:TruffleCompilerConfiguration=... Select a compiler configuration for Truffle compilation (default: use Graal system compiler configuration). Default: | |
| None | |
| -R:TruffleCompilerThreads=0 Manually set the number of compiler threads. | |
| -R:±TruffleEnableInfopoints Enable support for simple infopoints in truffle partial evaluations. Default: - (disabled). | |
| -R:±TruffleExcludeAssertions Exclude assertion code from Truffle compilations. Default: + (enabled). | |
| -R:TruffleFirstTierCompilationThreshold=100 Compile call target in the first tier when call count exceeds this threshold. | |
| -R:TruffleFirstTierMinInvokeThreshold=1 Minimum number of calls before a call target is compiled in the first tier. | |
| -R:±TruffleFunctionInlining Enable automatic inlining of call targets. Default: + (enabled). | |
| -R:±TruffleInlineAcrossTruffleBoundary Enable inlining across Truffle boundary. Default: - (disabled). | |
| -R:TruffleInliningMaxCallerSize=2250 Stop inlining if caller's cumulative tree size would exceed this limit. | |
| -R:±TruffleInstrumentBoundaries Instrument Truffle boundaries and output profiling information to the standard output. Default: - (disabled). | |
| -R:±TruffleInstrumentBoundariesPerInlineSite Instrument Truffle boundaries by considering different inlining sites as different branches. Default: - (disabled). | |
| -R:±TruffleInstrumentBranches Instrument branches and output profiling information to the standard output. Default: - (disabled). | |
| -R:±TruffleInstrumentBranchesPerInlineSite Instrument branches by considering different inlining sites as different branches. Default: - (disabled). | |
| -R:TruffleInstrumentFilter="*.*.*" Method filter for host methods in which to add instrumentation. | |
| -R:TruffleInstrumentationTableSize=10000 Maximum number of instrumentation counters available. | |
| -R:±TruffleIntrinsifyFrameAccess Intrinsify get/set/is methods of FrameWithoutBoxing to improve Truffle compilation time. Default: + (enabled). | |
| -R:TruffleInvalidationReprofileCount=3 Delay compilation after an invalidation to allow for reprofiling. | |
| -R:±TruffleIterativePartialEscape Run the partial escape analysis iteratively in Truffle compilation. Default: - (disabled). | |
| -R:±TruffleLegacySplitting Use legacy splitting heuristic. This option will be removed. Default: - (disabled). | |
| -R:TruffleMaximumRecursiveInlining=2 Maximum level of recursive inlining. | |
| -R:TruffleMinInvokeThreshold=3 Minimum number of calls before a call target is compiled. | |
| -R:±TruffleMultiTier Whether to use multiple Truffle compilation tiers by default. Default: - (disabled). | |
| -R:±TruffleOSR Enable on stack replacement for Truffle loops. Default: + (enabled). | |
| -R:TruffleOSRCompilationThreshold=100000 Number of loop iterations until on-stack-replacement compilation is triggered. | |
| -R:±TrufflePerformanceWarningsAreFatal Treat performance warnings as fatal occurrences that will exit the applications. Default: - (disabled). | |
| -R:±TruffleProfilingEnabled Enable/disable builtin profiles in com.oracle.truffle.api.profiles. Default: + (enabled). | |
| -R:TruffleReplaceReprofileCount=3 Delay compilation after a node replacement. | |
| -R:±TruffleReturnTypeSpeculation Default: + (enabled). | |
| -R:±TruffleSplitting Enable call target splitting. Default: + (enabled). | |
| -R:±TruffleSplittingAllowForcedSplits Should forced splits be allowed. Default: + (enabled). | |
| -R:±TruffleSplittingDumpDecisions Dumps to IGV information on polymorphic events. Default: - (disabled). | |
| -R:TruffleSplittingGrowthLimit=1.5 Disable call target splitting if the number of nodes created by splitting exceeds this factor times node count. | |
| -R:TruffleSplittingMaxCalleeSize=100 Disable call target splitting if tree size exceeds this limit. | |
| -R:TruffleSplittingMaxNumberOfSplitNodes=500000 | |
| Disable call target splitting if number of nodes created by splitting exceeds this limit. | |
| -R:TruffleSplittingMaxPropagationDepth=5 Propagate info about a polymorphic specialize through maximum this many call targets. | |
| -R:±TruffleSplittingTraceEvents Trace details of splitting events and decisions. Default: - (disabled). | |
| -R:TruffleTimeThreshold=50000 Defines the maximum timespan in milliseconds that is required for a call target to be queued for compilation. | |
| -R:±TruffleTraceSplittingSummary Used for debugging the splitting implementation. Prints splitting summary directly to stdout on shutdown. Default: - | |
| (disabled). | |
| -R:±TrustFinalDefaultFields Determines whether to treat final fields with default values as constant. Default: + (enabled). | |
| -R:TypeCheckMaxHints=2 The maximum number of profiled types that will be used when compiling a profiled type check. Note that | |
| TypeCheckMinProfileHitProbability also influences whether profiling info is used in compiled type checks. | |
| -R:TypeCheckMinProfileHitProbability=0.5 If the probability that a type check will hit one the profiled types (up to TypeCheckMaxHints) is below this value, the | |
| type check will be compiled without profiling info. | |
| -R:±UnresolvedIsError Report unresolved elements as errors. Default: + (enabled). | |
| -R:UnrollMaxIterations=16 | |
| -R:±UseCompilationStatistics Enables CompilationStatistics. Default: - (disabled). | |
| -R:±UseEncodedGraphs Encode and decode snippets and substitutions before parsing to test libgraal code path. This option is ignored in the | |
| context of libgraal. Default: - (disabled). | |
| -R:±UseExceptionProbability Default: + (enabled). | |
| -R:±UseGraalStubs Use Graal-generated stubs for complicated LIR operations instead of embedding all the emitted code. Default: + | |
| (enabled). | |
| -R:±UseIndexMasking Use index masking after bounds check to mitigate speculative execution attacks. Default: - (disabled). | |
| -R:±UseLoopLimitChecks Default: + (enabled). | |
| -R:±UseSnippetGraphCache Use a cache for snippet graphs. Default: + (enabled). | |
| -R:±UseSnippetTemplateCache Use a LRU cache for snippet templates. Default: + (enabled). | |
| -R:±UseTrappingNullChecks Use traps for null checks instead of explicit null-checks. Default: + (enabled). | |
| -R:±UseTypeCheckHints Default: + (enabled). | |
| -R:UserRequestedGCThreshold=16777216 Defines the upper bound for the number of remaining bytes in the young generation that cause a collection when | |
| `System.gc` is called. | |
| -R:±VerboseGC Print more information about the heap before and after each collection. Default: - (disabled). | |
| -R:Verify=... Pattern for specifying scopes in which logging is enabled. See the Dump option for the pattern syntax. Default: None | |
| -R:±VerifyBalancedMonitors Emit extra code to dynamically check monitor operations are balanced. Default: - (disabled). | |
| -R:±VerifyGraalGraphEdges Perform expensive verification of graph inputs, usages, successors and predecessors. Default: - (disabled). | |
| -R:±VerifyGraalGraphs Verify graphs often during compilation when assertions are turned on. Default: + (enabled). | |
| -R:±VerifyGraalPhasesSize Verify before - after relation of the relative, computed, code size of a graph. Default: - (disabled). | |
| -R:±VerifyHeapAtReturn Perform platform dependent validation of the Java heap at returns. Default: - (disabled). | |
| -R:±VerifyKillCFGUnusedNodes Verify that there are no new unused nodes when performing killCFG. Default: - (disabled). | |
| -R:±VerifyPhases Default: - (disabled). | |
| -R:±ZapStackOnMethodEntry Default: - (disabled). | |
| Error: Image build request failed with exit status 3 | |
| ``` |
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