comparison src/share/vm/runtime/globals.hpp @ 13102:f9f4503a4ab5

Merge
author Christos Kotselidis <christos.kotselidis@oracle.com>
date Thu, 21 Nov 2013 15:04:54 +0100
parents 096c224171c4
children 02f27ecb4f3a
comparison
equal deleted inserted replaced
13101:790ebab62d23 13102:f9f4503a4ab5
494 // it can be done in the same way as product_rw. 494 // it can be done in the same way as product_rw.
495 495
496 #define RUNTIME_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw, lp64_product) \ 496 #define RUNTIME_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw, lp64_product) \
497 \ 497 \
498 lp64_product(bool, UseCompressedOops, false, \ 498 lp64_product(bool, UseCompressedOops, false, \
499 "Use 32-bit object references in 64-bit VM " \ 499 "Use 32-bit object references in 64-bit VM. " \
500 "lp64_product means flag is always constant in 32 bit VM") \ 500 "lp64_product means flag is always constant in 32 bit VM") \
501 \ 501 \
502 lp64_product(bool, UseCompressedClassPointers, false, \ 502 lp64_product(bool, UseCompressedClassPointers, false, \
503 "Use 32-bit class pointers in 64-bit VM " \ 503 "Use 32-bit class pointers in 64-bit VM. " \
504 "lp64_product means flag is always constant in 32 bit VM") \ 504 "lp64_product means flag is always constant in 32 bit VM") \
505 \ 505 \
506 notproduct(bool, CheckCompressedOops, true, \ 506 notproduct(bool, CheckCompressedOops, true, \
507 "generate checks in encoding/decoding code in debug VM") \ 507 "Generate checks in encoding/decoding code in debug VM") \
508 \ 508 \
509 product_pd(uintx, HeapBaseMinAddress, \ 509 product_pd(uintx, HeapBaseMinAddress, \
510 "OS specific low limit for heap base address") \ 510 "OS specific low limit for heap base address") \
511 \ 511 \
512 diagnostic(bool, PrintCompressedOopsMode, false, \ 512 diagnostic(bool, PrintCompressedOopsMode, false, \
513 "Print compressed oops base address and encoding mode") \ 513 "Print compressed oops base address and encoding mode") \
514 \ 514 \
515 lp64_product(intx, ObjectAlignmentInBytes, 8, \ 515 lp64_product(intx, ObjectAlignmentInBytes, 8, \
516 "Default object alignment in bytes, 8 is minimum") \ 516 "Default object alignment in bytes, 8 is minimum") \
517 \ 517 \
518 product(bool, AssumeMP, false, \ 518 product(bool, AssumeMP, false, \
530 */ \ 530 */ \
531 product(bool, UsePPCLWSYNC, true, \ 531 product(bool, UsePPCLWSYNC, true, \
532 "Use lwsync instruction if true, else use slower sync") \ 532 "Use lwsync instruction if true, else use slower sync") \
533 \ 533 \
534 develop(bool, CleanChunkPoolAsync, falseInEmbedded, \ 534 develop(bool, CleanChunkPoolAsync, falseInEmbedded, \
535 "Whether to clean the chunk pool asynchronously") \ 535 "Clean the chunk pool asynchronously") \
536 \ 536 \
537 /* Temporary: See 6948537 */ \ 537 /* Temporary: See 6948537 */ \
538 experimental(bool, UseMemSetInBOT, true, \ 538 experimental(bool, UseMemSetInBOT, true, \
539 "(Unstable) uses memset in BOT updates in GC code") \ 539 "(Unstable) uses memset in BOT updates in GC code") \
540 \ 540 \
541 diagnostic(bool, UnlockDiagnosticVMOptions, trueInDebug, \ 541 diagnostic(bool, UnlockDiagnosticVMOptions, trueInDebug, \
542 "Enable normal processing of flags relating to field diagnostics")\ 542 "Enable normal processing of flags relating to field diagnostics")\
543 \ 543 \
544 experimental(bool, UnlockExperimentalVMOptions, false, \ 544 experimental(bool, UnlockExperimentalVMOptions, false, \
545 "Enable normal processing of flags relating to experimental features")\ 545 "Enable normal processing of flags relating to experimental " \
546 "features") \
546 \ 547 \
547 product(bool, JavaMonitorsInStackTrace, true, \ 548 product(bool, JavaMonitorsInStackTrace, true, \
548 "Print info. about Java monitor locks when the stacks are dumped")\ 549 "Print information about Java monitor locks when the stacks are" \
550 "dumped") \
549 \ 551 \
550 product_pd(bool, UseLargePages, \ 552 product_pd(bool, UseLargePages, \
551 "Use large page memory") \ 553 "Use large page memory") \
552 \ 554 \
553 product_pd(bool, UseLargePagesIndividualAllocation, \ 555 product_pd(bool, UseLargePagesIndividualAllocation, \
554 "Allocate large pages individually for better affinity") \ 556 "Allocate large pages individually for better affinity") \
555 \ 557 \
556 develop(bool, LargePagesIndividualAllocationInjectError, false, \ 558 develop(bool, LargePagesIndividualAllocationInjectError, false, \
557 "Fail large pages individual allocation") \ 559 "Fail large pages individual allocation") \
558 \ 560 \
561 product(bool, UseLargePagesInMetaspace, false, \
562 "Use large page memory in metaspace. " \
563 "Only used if UseLargePages is enabled.") \
564 \
559 develop(bool, TracePageSizes, false, \ 565 develop(bool, TracePageSizes, false, \
560 "Trace page size selection and usage.") \ 566 "Trace page size selection and usage") \
561 \ 567 \
562 product(bool, UseNUMA, false, \ 568 product(bool, UseNUMA, false, \
563 "Use NUMA if available") \ 569 "Use NUMA if available") \
564 \ 570 \
565 product(bool, UseNUMAInterleaving, false, \ 571 product(bool, UseNUMAInterleaving, false, \
570 \ 576 \
571 product(bool, ForceNUMA, false, \ 577 product(bool, ForceNUMA, false, \
572 "Force NUMA optimizations on single-node/UMA systems") \ 578 "Force NUMA optimizations on single-node/UMA systems") \
573 \ 579 \
574 product(uintx, NUMAChunkResizeWeight, 20, \ 580 product(uintx, NUMAChunkResizeWeight, 20, \
575 "Percentage (0-100) used to weigh the current sample when " \ 581 "Percentage (0-100) used to weigh the current sample when " \
576 "computing exponentially decaying average for " \ 582 "computing exponentially decaying average for " \
577 "AdaptiveNUMAChunkSizing") \ 583 "AdaptiveNUMAChunkSizing") \
578 \ 584 \
579 product(uintx, NUMASpaceResizeRate, 1*G, \ 585 product(uintx, NUMASpaceResizeRate, 1*G, \
580 "Do not reallocate more that this amount per collection") \ 586 "Do not reallocate more than this amount per collection") \
581 \ 587 \
582 product(bool, UseAdaptiveNUMAChunkSizing, true, \ 588 product(bool, UseAdaptiveNUMAChunkSizing, true, \
583 "Enable adaptive chunk sizing for NUMA") \ 589 "Enable adaptive chunk sizing for NUMA") \
584 \ 590 \
585 product(bool, NUMAStats, false, \ 591 product(bool, NUMAStats, false, \
592 "True for register window machines (sparc/ia64)") \ 598 "True for register window machines (sparc/ia64)") \
593 \ 599 \
594 product(intx, UseSSE, 99, \ 600 product(intx, UseSSE, 99, \
595 "Highest supported SSE instructions set on x86/x64") \ 601 "Highest supported SSE instructions set on x86/x64") \
596 \ 602 \
597 product(bool, UseAES, false, \ 603 product(bool, UseAES, false, \
598 "Control whether AES instructions can be used on x86/x64") \ 604 "Control whether AES instructions can be used on x86/x64") \
599 \ 605 \
600 product(uintx, LargePageSizeInBytes, 0, \ 606 product(uintx, LargePageSizeInBytes, 0, \
601 "Large page size (0 to let VM choose the page size") \ 607 "Large page size (0 to let VM choose the page size)") \
602 \ 608 \
603 product(uintx, LargePageHeapSizeThreshold, 128*M, \ 609 product(uintx, LargePageHeapSizeThreshold, 128*M, \
604 "Use large pages if max heap is at least this big") \ 610 "Use large pages if maximum heap is at least this big") \
605 \ 611 \
606 product(bool, ForceTimeHighResolution, false, \ 612 product(bool, ForceTimeHighResolution, false, \
607 "Using high time resolution(For Win32 only)") \ 613 "Using high time resolution (for Win32 only)") \
608 \ 614 \
609 develop(bool, TraceItables, false, \ 615 develop(bool, TraceItables, false, \
610 "Trace initialization and use of itables") \ 616 "Trace initialization and use of itables") \
611 \ 617 \
612 develop(bool, TracePcPatching, false, \ 618 develop(bool, TracePcPatching, false, \
618 develop(bool, TraceRelocator, false, \ 624 develop(bool, TraceRelocator, false, \
619 "Trace the bytecode relocator") \ 625 "Trace the bytecode relocator") \
620 \ 626 \
621 develop(bool, TraceLongCompiles, false, \ 627 develop(bool, TraceLongCompiles, false, \
622 "Print out every time compilation is longer than " \ 628 "Print out every time compilation is longer than " \
623 "a given threashold") \ 629 "a given threshold") \
624 \ 630 \
625 develop(bool, SafepointALot, false, \ 631 develop(bool, SafepointALot, false, \
626 "Generates a lot of safepoints. Works with " \ 632 "Generate a lot of safepoints. This works with " \
627 "GuaranteedSafepointInterval") \ 633 "GuaranteedSafepointInterval") \
628 \ 634 \
629 product_pd(bool, BackgroundCompilation, \ 635 product_pd(bool, BackgroundCompilation, \
630 "A thread requesting compilation is not blocked during " \ 636 "A thread requesting compilation is not blocked during " \
631 "compilation") \ 637 "compilation") \
632 \ 638 \
633 product(bool, PrintVMQWaitTime, false, \ 639 product(bool, PrintVMQWaitTime, false, \
634 "Prints out the waiting time in VM operation queue") \ 640 "Print out the waiting time in VM operation queue") \
635 \ 641 \
636 develop(bool, NoYieldsInMicrolock, false, \ 642 develop(bool, NoYieldsInMicrolock, false, \
637 "Disable yields in microlock") \ 643 "Disable yields in microlock") \
638 \ 644 \
639 develop(bool, TraceOopMapGeneration, false, \ 645 develop(bool, TraceOopMapGeneration, false, \
640 "Shows oopmap generation") \ 646 "Show OopMapGeneration") \
641 \ 647 \
642 product(bool, MethodFlushing, true, \ 648 product(bool, MethodFlushing, true, \
643 "Reclamation of zombie and not-entrant methods") \ 649 "Reclamation of zombie and not-entrant methods") \
644 \ 650 \
645 develop(bool, VerifyStack, false, \ 651 develop(bool, VerifyStack, false, \
646 "Verify stack of each thread when it is entering a runtime call") \ 652 "Verify stack of each thread when it is entering a runtime call") \
647 \ 653 \
648 diagnostic(bool, ForceUnreachable, false, \ 654 diagnostic(bool, ForceUnreachable, false, \
649 "Make all non code cache addresses to be unreachable with forcing use of 64bit literal fixups") \ 655 "Make all non code cache addresses to be unreachable by " \
656 "forcing use of 64bit literal fixups") \
650 \ 657 \
651 notproduct(bool, StressDerivedPointers, false, \ 658 notproduct(bool, StressDerivedPointers, false, \
652 "Force scavenge when a derived pointers is detected on stack " \ 659 "Force scavenge when a derived pointer is detected on stack " \
653 "after rtm call") \ 660 "after rtm call") \
654 \ 661 \
655 develop(bool, TraceDerivedPointers, false, \ 662 develop(bool, TraceDerivedPointers, false, \
656 "Trace traversal of derived pointers on stack") \ 663 "Trace traversal of derived pointers on stack") \
657 \ 664 \
666 \ 673 \
667 product(bool, UseInlineCaches, true, \ 674 product(bool, UseInlineCaches, true, \
668 "Use Inline Caches for virtual calls ") \ 675 "Use Inline Caches for virtual calls ") \
669 \ 676 \
670 develop(bool, InlineArrayCopy, true, \ 677 develop(bool, InlineArrayCopy, true, \
671 "inline arraycopy native that is known to be part of " \ 678 "Inline arraycopy native that is known to be part of " \
672 "base library DLL") \ 679 "base library DLL") \
673 \ 680 \
674 develop(bool, InlineObjectHash, true, \ 681 develop(bool, InlineObjectHash, true, \
675 "inline Object::hashCode() native that is known to be part " \ 682 "Inline Object::hashCode() native that is known to be part " \
676 "of base library DLL") \ 683 "of base library DLL") \
677 \ 684 \
678 develop(bool, InlineNatives, true, \ 685 develop(bool, InlineNatives, true, \
679 "inline natives that are known to be part of base library DLL") \ 686 "Inline natives that are known to be part of base library DLL") \
680 \ 687 \
681 develop(bool, InlineMathNatives, true, \ 688 develop(bool, InlineMathNatives, true, \
682 "inline SinD, CosD, etc.") \ 689 "Inline SinD, CosD, etc.") \
683 \ 690 \
684 develop(bool, InlineClassNatives, true, \ 691 develop(bool, InlineClassNatives, true, \
685 "inline Class.isInstance, etc") \ 692 "Inline Class.isInstance, etc") \
686 \ 693 \
687 develop(bool, InlineThreadNatives, true, \ 694 develop(bool, InlineThreadNatives, true, \
688 "inline Thread.currentThread, etc") \ 695 "Inline Thread.currentThread, etc") \
689 \ 696 \
690 develop(bool, InlineUnsafeOps, true, \ 697 develop(bool, InlineUnsafeOps, true, \
691 "inline memory ops (native methods) from sun.misc.Unsafe") \ 698 "Inline memory ops (native methods) from sun.misc.Unsafe") \
692 \ 699 \
693 product(bool, CriticalJNINatives, true, \ 700 product(bool, CriticalJNINatives, true, \
694 "check for critical JNI entry points") \ 701 "Check for critical JNI entry points") \
695 \ 702 \
696 notproduct(bool, StressCriticalJNINatives, false, \ 703 notproduct(bool, StressCriticalJNINatives, false, \
697 "Exercise register saving code in critical natives") \ 704 "Exercise register saving code in critical natives") \
698 \ 705 \
699 product(bool, UseSSE42Intrinsics, false, \ 706 product(bool, UseSSE42Intrinsics, false, \
700 "SSE4.2 versions of intrinsics") \ 707 "SSE4.2 versions of intrinsics") \
701 \ 708 \
702 product(bool, UseAESIntrinsics, false, \ 709 product(bool, UseAESIntrinsics, false, \
703 "use intrinsics for AES versions of crypto") \ 710 "Use intrinsics for AES versions of crypto") \
704 \ 711 \
705 product(bool, UseCRC32Intrinsics, false, \ 712 product(bool, UseCRC32Intrinsics, false, \
706 "use intrinsics for java.util.zip.CRC32") \ 713 "use intrinsics for java.util.zip.CRC32") \
707 \ 714 \
708 develop(bool, TraceCallFixup, false, \ 715 develop(bool, TraceCallFixup, false, \
709 "traces all call fixups") \ 716 "Trace all call fixups") \
710 \ 717 \
711 develop(bool, DeoptimizeALot, false, \ 718 develop(bool, DeoptimizeALot, false, \
712 "deoptimize at every exit from the runtime system") \ 719 "Deoptimize at every exit from the runtime system") \
713 \ 720 \
714 notproduct(ccstrlist, DeoptimizeOnlyAt, "", \ 721 notproduct(ccstrlist, DeoptimizeOnlyAt, "", \
715 "a comma separated list of bcis to deoptimize at") \ 722 "A comma separated list of bcis to deoptimize at") \
716 \ 723 \
717 product(bool, DeoptimizeRandom, false, \ 724 product(bool, DeoptimizeRandom, false, \
718 "deoptimize random frames on random exit from the runtime system")\ 725 "Deoptimize random frames on random exit from the runtime system")\
719 \ 726 \
720 notproduct(bool, ZombieALot, false, \ 727 notproduct(bool, ZombieALot, false, \
721 "creates zombies (non-entrant) at exit from the runt. system") \ 728 "Create zombies (non-entrant) at exit from the runtime system") \
722 \ 729 \
723 product(bool, UnlinkSymbolsALot, false, \ 730 product(bool, UnlinkSymbolsALot, false, \
724 "unlink unreferenced symbols from the symbol table at safepoints")\ 731 "Unlink unreferenced symbols from the symbol table at safepoints")\
725 \ 732 \
726 notproduct(bool, WalkStackALot, false, \ 733 notproduct(bool, WalkStackALot, false, \
727 "trace stack (no print) at every exit from the runtime system") \ 734 "Trace stack (no print) at every exit from the runtime system") \
728 \ 735 \
729 product(bool, Debugging, false, \ 736 product(bool, Debugging, false, \
730 "set when executing debug methods in debug.ccp " \ 737 "Set when executing debug methods in debug.cpp " \
731 "(to prevent triggering assertions)") \ 738 "(to prevent triggering assertions)") \
732 \ 739 \
733 notproduct(bool, StrictSafepointChecks, trueInDebug, \ 740 notproduct(bool, StrictSafepointChecks, trueInDebug, \
734 "Enable strict checks that safepoints cannot happen for threads " \ 741 "Enable strict checks that safepoints cannot happen for threads " \
735 "that used No_Safepoint_Verifier") \ 742 "that use No_Safepoint_Verifier") \
736 \ 743 \
737 notproduct(bool, VerifyLastFrame, false, \ 744 notproduct(bool, VerifyLastFrame, false, \
738 "Verify oops on last frame on entry to VM") \ 745 "Verify oops on last frame on entry to VM") \
739 \ 746 \
740 develop(bool, TraceHandleAllocation, false, \ 747 develop(bool, TraceHandleAllocation, false, \
741 "Prints out warnings when suspicious many handles are allocated") \ 748 "Print out warnings when suspiciously many handles are allocated")\
742 \ 749 \
743 product(bool, UseCompilerSafepoints, true, \ 750 product(bool, UseCompilerSafepoints, true, \
744 "Stop at safepoints in compiled code") \ 751 "Stop at safepoints in compiled code") \
745 \ 752 \
746 product(bool, FailOverToOldVerifier, true, \ 753 product(bool, FailOverToOldVerifier, true, \
747 "fail over to old verifier when split verifier fails") \ 754 "Fail over to old verifier when split verifier fails") \
748 \ 755 \
749 develop(bool, ShowSafepointMsgs, false, \ 756 develop(bool, ShowSafepointMsgs, false, \
750 "Show msg. about safepoint synch.") \ 757 "Show message about safepoint synchronization") \
751 \ 758 \
752 product(bool, SafepointTimeout, false, \ 759 product(bool, SafepointTimeout, false, \
753 "Time out and warn or fail after SafepointTimeoutDelay " \ 760 "Time out and warn or fail after SafepointTimeoutDelay " \
754 "milliseconds if failed to reach safepoint") \ 761 "milliseconds if failed to reach safepoint") \
755 \ 762 \
769 \ 776 \
770 product(bool, TraceSuspendWaitFailures, false, \ 777 product(bool, TraceSuspendWaitFailures, false, \
771 "Trace external suspend wait failures") \ 778 "Trace external suspend wait failures") \
772 \ 779 \
773 product(bool, MaxFDLimit, true, \ 780 product(bool, MaxFDLimit, true, \
774 "Bump the number of file descriptors to max in solaris.") \ 781 "Bump the number of file descriptors to maximum in Solaris") \
775 \ 782 \
776 diagnostic(bool, LogEvents, true, \ 783 diagnostic(bool, LogEvents, true, \
777 "Enable the various ring buffer event logs") \ 784 "Enable the various ring buffer event logs") \
778 \ 785 \
779 diagnostic(uintx, LogEventsBufferEntries, 10, \ 786 diagnostic(uintx, LogEventsBufferEntries, 10, \
780 "Enable the various ring buffer event logs") \ 787 "Number of ring buffer event logs") \
781 \ 788 \
782 product(bool, BytecodeVerificationRemote, true, \ 789 product(bool, BytecodeVerificationRemote, true, \
783 "Enables the Java bytecode verifier for remote classes") \ 790 "Enable the Java bytecode verifier for remote classes") \
784 \ 791 \
785 product(bool, BytecodeVerificationLocal, false, \ 792 product(bool, BytecodeVerificationLocal, false, \
786 "Enables the Java bytecode verifier for local classes") \ 793 "Enable the Java bytecode verifier for local classes") \
787 \ 794 \
788 develop(bool, ForceFloatExceptions, trueInDebug, \ 795 develop(bool, ForceFloatExceptions, trueInDebug, \
789 "Force exceptions on FP stack under/overflow") \ 796 "Force exceptions on FP stack under/overflow") \
790 \ 797 \
791 develop(bool, VerifyStackAtCalls, false, \ 798 develop(bool, VerifyStackAtCalls, false, \
793 \ 800 \
794 develop(bool, TraceJavaAssertions, false, \ 801 develop(bool, TraceJavaAssertions, false, \
795 "Trace java language assertions") \ 802 "Trace java language assertions") \
796 \ 803 \
797 notproduct(bool, CheckAssertionStatusDirectives, false, \ 804 notproduct(bool, CheckAssertionStatusDirectives, false, \
798 "temporary - see javaClasses.cpp") \ 805 "Temporary - see javaClasses.cpp") \
799 \ 806 \
800 notproduct(bool, PrintMallocFree, false, \ 807 notproduct(bool, PrintMallocFree, false, \
801 "Trace calls to C heap malloc/free allocation") \ 808 "Trace calls to C heap malloc/free allocation") \
802 \ 809 \
803 product(bool, PrintOopAddress, false, \ 810 product(bool, PrintOopAddress, false, \
812 notproduct(bool, ZapDeadLocalsOld, false, \ 819 notproduct(bool, ZapDeadLocalsOld, false, \
813 "Zap dead locals (old version, zaps all frames when " \ 820 "Zap dead locals (old version, zaps all frames when " \
814 "entering the VM") \ 821 "entering the VM") \
815 \ 822 \
816 notproduct(bool, CheckOopishValues, false, \ 823 notproduct(bool, CheckOopishValues, false, \
817 "Warn if value contains oop ( requires ZapDeadLocals)") \ 824 "Warn if value contains oop (requires ZapDeadLocals)") \
818 \ 825 \
819 develop(bool, UseMallocOnly, false, \ 826 develop(bool, UseMallocOnly, false, \
820 "use only malloc/free for allocation (no resource area/arena)") \ 827 "Use only malloc/free for allocation (no resource area/arena)") \
821 \ 828 \
822 develop(bool, PrintMalloc, false, \ 829 develop(bool, PrintMalloc, false, \
823 "print all malloc/free calls") \ 830 "Print all malloc/free calls") \
824 \ 831 \
825 develop(bool, PrintMallocStatistics, false, \ 832 develop(bool, PrintMallocStatistics, false, \
826 "print malloc/free statistics") \ 833 "Print malloc/free statistics") \
827 \ 834 \
828 develop(bool, ZapResourceArea, trueInDebug, \ 835 develop(bool, ZapResourceArea, trueInDebug, \
829 "Zap freed resource/arena space with 0xABABABAB") \ 836 "Zap freed resource/arena space with 0xABABABAB") \
830 \ 837 \
831 notproduct(bool, ZapVMHandleArea, trueInDebug, \ 838 notproduct(bool, ZapVMHandleArea, trueInDebug, \
833 \ 840 \
834 develop(bool, ZapJNIHandleArea, trueInDebug, \ 841 develop(bool, ZapJNIHandleArea, trueInDebug, \
835 "Zap freed JNI handle space with 0xFEFEFEFE") \ 842 "Zap freed JNI handle space with 0xFEFEFEFE") \
836 \ 843 \
837 notproduct(bool, ZapStackSegments, trueInDebug, \ 844 notproduct(bool, ZapStackSegments, trueInDebug, \
838 "Zap allocated/freed Stack segments with 0xFADFADED") \ 845 "Zap allocated/freed stack segments with 0xFADFADED") \
839 \ 846 \
840 develop(bool, ZapUnusedHeapArea, trueInDebug, \ 847 develop(bool, ZapUnusedHeapArea, trueInDebug, \
841 "Zap unused heap space with 0xBAADBABE") \ 848 "Zap unused heap space with 0xBAADBABE") \
842 \ 849 \
843 develop(bool, TraceZapUnusedHeapArea, false, \ 850 develop(bool, TraceZapUnusedHeapArea, false, \
848 \ 855 \
849 develop(bool, ZapFillerObjects, trueInDebug, \ 856 develop(bool, ZapFillerObjects, trueInDebug, \
850 "Zap filler objects with 0xDEAFBABE") \ 857 "Zap filler objects with 0xDEAFBABE") \
851 \ 858 \
852 develop(bool, PrintVMMessages, true, \ 859 develop(bool, PrintVMMessages, true, \
853 "Print vm messages on console") \ 860 "Print VM messages on console") \
854 \ 861 \
855 product(bool, PrintGCApplicationConcurrentTime, false, \ 862 product(bool, PrintGCApplicationConcurrentTime, false, \
856 "Print the time the application has been running") \ 863 "Print the time the application has been running") \
857 \ 864 \
858 product(bool, PrintGCApplicationStoppedTime, false, \ 865 product(bool, PrintGCApplicationStoppedTime, false, \
859 "Print the time the application has been stopped") \ 866 "Print the time the application has been stopped") \
860 \ 867 \
861 diagnostic(bool, VerboseVerification, false, \ 868 diagnostic(bool, VerboseVerification, false, \
862 "Display detailed verification details") \ 869 "Display detailed verification details") \
863 \ 870 \
864 notproduct(uintx, ErrorHandlerTest, 0, \ 871 notproduct(uintx, ErrorHandlerTest, 0, \
865 "If > 0, provokes an error after VM initialization; the value" \ 872 "If > 0, provokes an error after VM initialization; the value " \
866 "determines which error to provoke. See test_error_handler()" \ 873 "determines which error to provoke. See test_error_handler() " \
867 "in debug.cpp.") \ 874 "in debug.cpp.") \
868 \ 875 \
869 develop(bool, Verbose, false, \ 876 develop(bool, Verbose, false, \
870 "Prints additional debugging information from other modes") \ 877 "Print additional debugging information from other modes") \
871 \ 878 \
872 develop(bool, PrintMiscellaneous, false, \ 879 develop(bool, PrintMiscellaneous, false, \
873 "Prints uncategorized debugging information (requires +Verbose)") \ 880 "Print uncategorized debugging information (requires +Verbose)") \
874 \ 881 \
875 develop(bool, WizardMode, false, \ 882 develop(bool, WizardMode, false, \
876 "Prints much more debugging information") \ 883 "Print much more debugging information") \
877 \ 884 \
878 product(bool, ShowMessageBoxOnError, false, \ 885 product(bool, ShowMessageBoxOnError, false, \
879 "Keep process alive on VM fatal error") \ 886 "Keep process alive on VM fatal error") \
880 \ 887 \
881 product(bool, CreateMinidumpOnCrash, false, \ 888 product(bool, CreateMinidumpOnCrash, false, \
883 \ 890 \
884 product_pd(bool, UseOSErrorReporting, \ 891 product_pd(bool, UseOSErrorReporting, \
885 "Let VM fatal error propagate to the OS (ie. WER on Windows)") \ 892 "Let VM fatal error propagate to the OS (ie. WER on Windows)") \
886 \ 893 \
887 product(bool, SuppressFatalErrorMessage, false, \ 894 product(bool, SuppressFatalErrorMessage, false, \
888 "Do NO Fatal Error report [Avoid deadlock]") \ 895 "Report NO fatal error message (avoid deadlock)") \
889 \ 896 \
890 product(ccstrlist, OnError, "", \ 897 product(ccstrlist, OnError, "", \
891 "Run user-defined commands on fatal error; see VMError.cpp " \ 898 "Run user-defined commands on fatal error; see VMError.cpp " \
892 "for examples") \ 899 "for examples") \
893 \ 900 \
894 product(ccstrlist, OnOutOfMemoryError, "", \ 901 product(ccstrlist, OnOutOfMemoryError, "", \
895 "Run user-defined commands on first java.lang.OutOfMemoryError") \ 902 "Run user-defined commands on first java.lang.OutOfMemoryError") \
896 \ 903 \
897 manageable(bool, HeapDumpBeforeFullGC, false, \ 904 manageable(bool, HeapDumpBeforeFullGC, false, \
898 "Dump heap to file before any major stop-world GC") \ 905 "Dump heap to file before any major stop-the-world GC") \
899 \ 906 \
900 manageable(bool, HeapDumpAfterFullGC, false, \ 907 manageable(bool, HeapDumpAfterFullGC, false, \
901 "Dump heap to file after any major stop-world GC") \ 908 "Dump heap to file after any major stop-the-world GC") \
902 \ 909 \
903 manageable(bool, HeapDumpOnOutOfMemoryError, false, \ 910 manageable(bool, HeapDumpOnOutOfMemoryError, false, \
904 "Dump heap to file when java.lang.OutOfMemoryError is thrown") \ 911 "Dump heap to file when java.lang.OutOfMemoryError is thrown") \
905 \ 912 \
906 manageable(ccstr, HeapDumpPath, NULL, \ 913 manageable(ccstr, HeapDumpPath, NULL, \
907 "When HeapDumpOnOutOfMemoryError is on, the path (filename or" \ 914 "When HeapDumpOnOutOfMemoryError is on, the path (filename or " \
908 "directory) of the dump file (defaults to java_pid<pid>.hprof" \ 915 "directory) of the dump file (defaults to java_pid<pid>.hprof " \
909 "in the working directory)") \ 916 "in the working directory)") \
910 \ 917 \
911 develop(uintx, SegmentedHeapDumpThreshold, 2*G, \ 918 develop(uintx, SegmentedHeapDumpThreshold, 2*G, \
912 "Generate a segmented heap dump (JAVA PROFILE 1.0.2 format) " \ 919 "Generate a segmented heap dump (JAVA PROFILE 1.0.2 format) " \
913 "when the heap usage is larger than this") \ 920 "when the heap usage is larger than this") \
917 \ 924 \
918 develop(bool, BreakAtWarning, false, \ 925 develop(bool, BreakAtWarning, false, \
919 "Execute breakpoint upon encountering VM warning") \ 926 "Execute breakpoint upon encountering VM warning") \
920 \ 927 \
921 develop(bool, TraceVMOperation, false, \ 928 develop(bool, TraceVMOperation, false, \
922 "Trace vm operations") \ 929 "Trace VM operations") \
923 \ 930 \
924 develop(bool, UseFakeTimers, false, \ 931 develop(bool, UseFakeTimers, false, \
925 "Tells whether the VM should use system time or a fake timer") \ 932 "Tell whether the VM should use system time or a fake timer") \
926 \ 933 \
927 product(ccstr, NativeMemoryTracking, "off", \ 934 product(ccstr, NativeMemoryTracking, "off", \
928 "Native memory tracking options") \ 935 "Native memory tracking options") \
929 \ 936 \
930 diagnostic(bool, PrintNMTStatistics, false, \ 937 diagnostic(bool, PrintNMTStatistics, false, \
931 "Print native memory tracking summary data if it is on") \ 938 "Print native memory tracking summary data if it is on") \
932 \ 939 \
933 diagnostic(bool, AutoShutdownNMT, true, \ 940 diagnostic(bool, AutoShutdownNMT, true, \
934 "Automatically shutdown native memory tracking under stress " \ 941 "Automatically shutdown native memory tracking under stress " \
935 "situation. When set to false, native memory tracking tries to " \ 942 "situations. When set to false, native memory tracking tries to " \
936 "stay alive at the expense of JVM performance") \ 943 "stay alive at the expense of JVM performance") \
937 \ 944 \
938 diagnostic(bool, LogCompilation, false, \ 945 diagnostic(bool, LogCompilation, false, \
939 "Log compilation activity in detail to LogFile") \ 946 "Log compilation activity in detail to LogFile") \
940 \ 947 \
941 product(bool, PrintCompilation, false, \ 948 product(bool, PrintCompilation, false, \
942 "Print compilations") \ 949 "Print compilations") \
943 \ 950 \
944 diagnostic(bool, TraceNMethodInstalls, false, \ 951 diagnostic(bool, TraceNMethodInstalls, false, \
945 "Trace nmethod intallation") \ 952 "Trace nmethod installation") \
946 \ 953 \
947 diagnostic(intx, ScavengeRootsInCode, 2, \ 954 diagnostic(intx, ScavengeRootsInCode, 2, \
948 "0: do not allow scavengable oops in the code cache; " \ 955 "0: do not allow scavengable oops in the code cache; " \
949 "1: allow scavenging from the code cache; " \ 956 "1: allow scavenging from the code cache; " \
950 "2: emit as many constants as the compiler can see") \ 957 "2: emit as many constants as the compiler can see") \
951 \ 958 \
952 product(bool, AlwaysRestoreFPU, false, \ 959 product(bool, AlwaysRestoreFPU, false, \
953 "Restore the FPU control word after every JNI call (expensive)") \ 960 "Restore the FPU control word after every JNI call (expensive)") \
954 \ 961 \
955 diagnostic(bool, PrintCompilation2, false, \ 962 diagnostic(bool, PrintCompilation2, false, \
966 \ 973 \
967 diagnostic(bool, PrintAssembly, false, \ 974 diagnostic(bool, PrintAssembly, false, \
968 "Print assembly code (using external disassembler.so)") \ 975 "Print assembly code (using external disassembler.so)") \
969 \ 976 \
970 diagnostic(ccstr, PrintAssemblyOptions, NULL, \ 977 diagnostic(ccstr, PrintAssemblyOptions, NULL, \
971 "Options string passed to disassembler.so") \ 978 "Print options string passed to disassembler.so") \
972 \ 979 \
973 product(bool, PrintNMethodStatistics, false, \ 980 product(bool, PrintNMethodStatistics, false, \
974 "Print a summary statistic for the generated nmethods") \ 981 "Print a summary statistic for the generated nmethods") \
975 \ 982 \
976 diagnostic(bool, PrintNMethods, false, \ 983 diagnostic(bool, PrintNMethods, false, \
990 \ 997 \
991 develop(bool, PrintExceptionHandlers, false, \ 998 develop(bool, PrintExceptionHandlers, false, \
992 "Print exception handler tables for all nmethods when generated") \ 999 "Print exception handler tables for all nmethods when generated") \
993 \ 1000 \
994 develop(bool, StressCompiledExceptionHandlers, false, \ 1001 develop(bool, StressCompiledExceptionHandlers, false, \
995 "Exercise compiled exception handlers") \ 1002 "Exercise compiled exception handlers") \
996 \ 1003 \
997 develop(bool, InterceptOSException, false, \ 1004 develop(bool, InterceptOSException, false, \
998 "Starts debugger when an implicit OS (e.g., NULL) " \ 1005 "Start debugger when an implicit OS (e.g. NULL) " \
999 "exception happens") \ 1006 "exception happens") \
1000 \ 1007 \
1001 product(bool, PrintCodeCache, false, \ 1008 product(bool, PrintCodeCache, false, \
1002 "Print the code cache memory usage when exiting") \ 1009 "Print the code cache memory usage when exiting") \
1003 \ 1010 \
1004 develop(bool, PrintCodeCache2, false, \ 1011 develop(bool, PrintCodeCache2, false, \
1005 "Print detailed usage info on the code cache when exiting") \ 1012 "Print detailed usage information on the code cache when exiting")\
1006 \ 1013 \
1007 product(bool, PrintCodeCacheOnCompilation, false, \ 1014 product(bool, PrintCodeCacheOnCompilation, false, \
1008 "Print the code cache memory usage each time a method is compiled") \ 1015 "Print the code cache memory usage each time a method is " \
1016 "compiled") \
1009 \ 1017 \
1010 diagnostic(bool, PrintStubCode, false, \ 1018 diagnostic(bool, PrintStubCode, false, \
1011 "Print generated stub code") \ 1019 "Print generated stub code") \
1012 \ 1020 \
1013 product(bool, StackTraceInThrowable, true, \ 1021 product(bool, StackTraceInThrowable, true, \
1015 \ 1023 \
1016 product(bool, OmitStackTraceInFastThrow, true, \ 1024 product(bool, OmitStackTraceInFastThrow, true, \
1017 "Omit backtraces for some 'hot' exceptions in optimized code") \ 1025 "Omit backtraces for some 'hot' exceptions in optimized code") \
1018 \ 1026 \
1019 product(bool, ProfilerPrintByteCodeStatistics, false, \ 1027 product(bool, ProfilerPrintByteCodeStatistics, false, \
1020 "Prints byte code statictics when dumping profiler output") \ 1028 "Print bytecode statistics when dumping profiler output") \
1021 \ 1029 \
1022 product(bool, ProfilerRecordPC, false, \ 1030 product(bool, ProfilerRecordPC, false, \
1023 "Collects tick for each 16 byte interval of compiled code") \ 1031 "Collect ticks for each 16 byte interval of compiled code") \
1024 \ 1032 \
1025 product(bool, ProfileVM, false, \ 1033 product(bool, ProfileVM, false, \
1026 "Profiles ticks that fall within VM (either in the VM Thread " \ 1034 "Profile ticks that fall within VM (either in the VM Thread " \
1027 "or VM code called through stubs)") \ 1035 "or VM code called through stubs)") \
1028 \ 1036 \
1029 product(bool, ProfileIntervals, false, \ 1037 product(bool, ProfileIntervals, false, \
1030 "Prints profiles for each interval (see ProfileIntervalsTicks)") \ 1038 "Print profiles for each interval (see ProfileIntervalsTicks)") \
1031 \ 1039 \
1032 notproduct(bool, ProfilerCheckIntervals, false, \ 1040 notproduct(bool, ProfilerCheckIntervals, false, \
1033 "Collect and print info on spacing of profiler ticks") \ 1041 "Collect and print information on spacing of profiler ticks") \
1034 \ 1042 \
1035 develop(bool, PrintJVMWarnings, false, \ 1043 develop(bool, PrintJVMWarnings, false, \
1036 "Prints warnings for unimplemented JVM functions") \ 1044 "Print warnings for unimplemented JVM functions") \
1037 \ 1045 \
1038 product(bool, PrintWarnings, true, \ 1046 product(bool, PrintWarnings, true, \
1039 "Prints JVM warnings to output stream") \ 1047 "Print JVM warnings to output stream") \
1040 \ 1048 \
1041 notproduct(uintx, WarnOnStalledSpinLock, 0, \ 1049 notproduct(uintx, WarnOnStalledSpinLock, 0, \
1042 "Prints warnings for stalled SpinLocks") \ 1050 "Print warnings for stalled SpinLocks") \
1043 \ 1051 \
1044 product(bool, RegisterFinalizersAtInit, true, \ 1052 product(bool, RegisterFinalizersAtInit, true, \
1045 "Register finalizable objects at end of Object.<init> or " \ 1053 "Register finalizable objects at end of Object.<init> or " \
1046 "after allocation") \ 1054 "after allocation") \
1047 \ 1055 \
1048 develop(bool, RegisterReferences, true, \ 1056 develop(bool, RegisterReferences, true, \
1049 "Tells whether the VM should register soft/weak/final/phantom " \ 1057 "Tell whether the VM should register soft/weak/final/phantom " \
1050 "references") \ 1058 "references") \
1051 \ 1059 \
1052 develop(bool, IgnoreRewrites, false, \ 1060 develop(bool, IgnoreRewrites, false, \
1053 "Supress rewrites of bytecodes in the oopmap generator. " \ 1061 "Suppress rewrites of bytecodes in the oopmap generator. " \
1054 "This is unsafe!") \ 1062 "This is unsafe!") \
1055 \ 1063 \
1056 develop(bool, PrintCodeCacheExtension, false, \ 1064 develop(bool, PrintCodeCacheExtension, false, \
1057 "Print extension of code cache") \ 1065 "Print extension of code cache") \
1058 \ 1066 \
1059 develop(bool, UsePrivilegedStack, true, \ 1067 develop(bool, UsePrivilegedStack, true, \
1060 "Enable the security JVM functions") \ 1068 "Enable the security JVM functions") \
1061 \ 1069 \
1062 develop(bool, ProtectionDomainVerification, true, \ 1070 develop(bool, ProtectionDomainVerification, true, \
1063 "Verifies protection domain before resolution in system " \ 1071 "Verify protection domain before resolution in system dictionary")\
1064 "dictionary") \
1065 \ 1072 \
1066 product(bool, ClassUnloading, true, \ 1073 product(bool, ClassUnloading, true, \
1067 "Do unloading of classes") \ 1074 "Do unloading of classes") \
1068 \ 1075 \
1069 develop(bool, DisableStartThread, false, \ 1076 develop(bool, DisableStartThread, false, \
1072 \ 1079 \
1073 develop(bool, MemProfiling, false, \ 1080 develop(bool, MemProfiling, false, \
1074 "Write memory usage profiling to log file") \ 1081 "Write memory usage profiling to log file") \
1075 \ 1082 \
1076 notproduct(bool, PrintSystemDictionaryAtExit, false, \ 1083 notproduct(bool, PrintSystemDictionaryAtExit, false, \
1077 "Prints the system dictionary at exit") \ 1084 "Print the system dictionary at exit") \
1078 \ 1085 \
1079 experimental(intx, PredictedLoadedClassCount, 0, \ 1086 experimental(intx, PredictedLoadedClassCount, 0, \
1080 "Experimental: Tune loaded class cache starting size.") \ 1087 "Experimental: Tune loaded class cache starting size") \
1081 \ 1088 \
1082 diagnostic(bool, UnsyncloadClass, false, \ 1089 diagnostic(bool, UnsyncloadClass, false, \
1083 "Unstable: VM calls loadClass unsynchronized. Custom " \ 1090 "Unstable: VM calls loadClass unsynchronized. Custom " \
1084 "class loader must call VM synchronized for findClass " \ 1091 "class loader must call VM synchronized for findClass " \
1085 "and defineClass.") \ 1092 "and defineClass.") \
1086 \ 1093 \
1087 product(bool, AlwaysLockClassLoader, false, \ 1094 product(bool, AlwaysLockClassLoader, false, \
1088 "Require the VM to acquire the class loader lock before calling " \ 1095 "Require the VM to acquire the class loader lock before calling " \
1089 "loadClass() even for class loaders registering " \ 1096 "loadClass() even for class loaders registering " \
1095 \ 1102 \
1096 product(bool, MustCallLoadClassInternal, false, \ 1103 product(bool, MustCallLoadClassInternal, false, \
1097 "Call loadClassInternal() rather than loadClass()") \ 1104 "Call loadClassInternal() rather than loadClass()") \
1098 \ 1105 \
1099 product_pd(bool, DontYieldALot, \ 1106 product_pd(bool, DontYieldALot, \
1100 "Throw away obvious excess yield calls (for SOLARIS only)") \ 1107 "Throw away obvious excess yield calls (for Solaris only)") \
1101 \ 1108 \
1102 product_pd(bool, ConvertSleepToYield, \ 1109 product_pd(bool, ConvertSleepToYield, \
1103 "Converts sleep(0) to thread yield " \ 1110 "Convert sleep(0) to thread yield " \
1104 "(may be off for SOLARIS to improve GUI)") \ 1111 "(may be off for Solaris to improve GUI)") \
1105 \ 1112 \
1106 product(bool, ConvertYieldToSleep, false, \ 1113 product(bool, ConvertYieldToSleep, false, \
1107 "Converts yield to a sleep of MinSleepInterval to simulate Win32 "\ 1114 "Convert yield to a sleep of MinSleepInterval to simulate Win32 " \
1108 "behavior (SOLARIS only)") \ 1115 "behavior (Solaris only)") \
1109 \ 1116 \
1110 product(bool, UseBoundThreads, true, \ 1117 product(bool, UseBoundThreads, true, \
1111 "Bind user level threads to kernel threads (for SOLARIS only)") \ 1118 "Bind user level threads to kernel threads (for Solaris only)") \
1112 \ 1119 \
1113 develop(bool, UseDetachedThreads, true, \ 1120 develop(bool, UseDetachedThreads, true, \
1114 "Use detached threads that are recycled upon termination " \ 1121 "Use detached threads that are recycled upon termination " \
1115 "(for SOLARIS only)") \ 1122 "(for Solaris only)") \
1116 \ 1123 \
1117 product(bool, UseLWPSynchronization, true, \ 1124 product(bool, UseLWPSynchronization, true, \
1118 "Use LWP-based instead of libthread-based synchronization " \ 1125 "Use LWP-based instead of libthread-based synchronization " \
1119 "(SPARC only)") \ 1126 "(SPARC only)") \
1120 \ 1127 \
1121 product(ccstr, SyncKnobs, NULL, \ 1128 product(ccstr, SyncKnobs, NULL, \
1122 "(Unstable) Various monitor synchronization tunables") \ 1129 "(Unstable) Various monitor synchronization tunables") \
1123 \ 1130 \
1124 product(intx, EmitSync, 0, \ 1131 product(intx, EmitSync, 0, \
1125 "(Unsafe,Unstable) " \ 1132 "(Unsafe, Unstable) " \
1126 " Controls emission of inline sync fast-path code") \ 1133 "Control emission of inline sync fast-path code") \
1127 \ 1134 \
1128 product(intx, MonitorBound, 0, "Bound Monitor population") \ 1135 product(intx, MonitorBound, 0, "Bound Monitor population") \
1129 \ 1136 \
1130 product(bool, MonitorInUseLists, false, "Track Monitors for Deflation") \ 1137 product(bool, MonitorInUseLists, false, "Track Monitors for Deflation") \
1131 \ 1138 \
1132 product(intx, SyncFlags, 0, "(Unsafe,Unstable) Experimental Sync flags" ) \ 1139 product(intx, SyncFlags, 0, "(Unsafe, Unstable) Experimental Sync flags") \
1133 \ 1140 \
1134 product(intx, SyncVerbose, 0, "(Unstable)" ) \ 1141 product(intx, SyncVerbose, 0, "(Unstable)") \
1135 \ 1142 \
1136 product(intx, ClearFPUAtPark, 0, "(Unsafe,Unstable)" ) \ 1143 product(intx, ClearFPUAtPark, 0, "(Unsafe, Unstable)") \
1137 \ 1144 \
1138 product(intx, hashCode, 5, \ 1145 product(intx, hashCode, 5, \
1139 "(Unstable) select hashCode generation algorithm" ) \ 1146 "(Unstable) select hashCode generation algorithm") \
1140 \ 1147 \
1141 product(intx, WorkAroundNPTLTimedWaitHang, 1, \ 1148 product(intx, WorkAroundNPTLTimedWaitHang, 1, \
1142 "(Unstable, Linux-specific)" \ 1149 "(Unstable, Linux-specific) " \
1143 " avoid NPTL-FUTEX hang pthread_cond_timedwait" ) \ 1150 "avoid NPTL-FUTEX hang pthread_cond_timedwait") \
1144 \ 1151 \
1145 product(bool, FilterSpuriousWakeups, true, \ 1152 product(bool, FilterSpuriousWakeups, true, \
1146 "Prevent spurious or premature wakeups from object.wait " \ 1153 "Prevent spurious or premature wakeups from object.wait " \
1147 "(Solaris only)") \ 1154 "(Solaris only)") \
1148 \ 1155 \
1149 product(intx, NativeMonitorTimeout, -1, "(Unstable)" ) \ 1156 product(intx, NativeMonitorTimeout, -1, "(Unstable)") \
1150 product(intx, NativeMonitorFlags, 0, "(Unstable)" ) \ 1157 \
1151 product(intx, NativeMonitorSpinLimit, 20, "(Unstable)" ) \ 1158 product(intx, NativeMonitorFlags, 0, "(Unstable)") \
1159 \
1160 product(intx, NativeMonitorSpinLimit, 20, "(Unstable)") \
1152 \ 1161 \
1153 develop(bool, UsePthreads, false, \ 1162 develop(bool, UsePthreads, false, \
1154 "Use pthread-based instead of libthread-based synchronization " \ 1163 "Use pthread-based instead of libthread-based synchronization " \
1155 "(SPARC only)") \ 1164 "(SPARC only)") \
1156 \ 1165 \
1157 product(bool, AdjustConcurrency, false, \ 1166 product(bool, AdjustConcurrency, false, \
1158 "call thr_setconcurrency at thread create time to avoid " \ 1167 "Call thr_setconcurrency at thread creation time to avoid " \
1159 "LWP starvation on MP systems (For Solaris Only)") \ 1168 "LWP starvation on MP systems (for Solaris Only)") \
1160 \ 1169 \
1161 product(bool, ReduceSignalUsage, false, \ 1170 product(bool, ReduceSignalUsage, false, \
1162 "Reduce the use of OS signals in Java and/or the VM") \ 1171 "Reduce the use of OS signals in Java and/or the VM") \
1163 \ 1172 \
1164 develop_pd(bool, ShareVtableStubs, \ 1173 develop_pd(bool, ShareVtableStubs, \
1165 "Share vtable stubs (smaller code but worse branch prediction") \ 1174 "Share vtable stubs (smaller code but worse branch prediction") \
1166 \ 1175 \
1167 develop(bool, LoadLineNumberTables, true, \ 1176 develop(bool, LoadLineNumberTables, true, \
1168 "Tells whether the class file parser loads line number tables") \ 1177 "Tell whether the class file parser loads line number tables") \
1169 \ 1178 \
1170 develop(bool, LoadLocalVariableTables, true, \ 1179 develop(bool, LoadLocalVariableTables, true, \
1171 "Tells whether the class file parser loads local variable tables")\ 1180 "Tell whether the class file parser loads local variable tables") \
1172 \ 1181 \
1173 develop(bool, LoadLocalVariableTypeTables, true, \ 1182 develop(bool, LoadLocalVariableTypeTables, true, \
1174 "Tells whether the class file parser loads local variable type tables")\ 1183 "Tell whether the class file parser loads local variable type" \
1184 "tables") \
1175 \ 1185 \
1176 product(bool, AllowUserSignalHandlers, false, \ 1186 product(bool, AllowUserSignalHandlers, false, \
1177 "Do not complain if the application installs signal handlers " \ 1187 "Do not complain if the application installs signal handlers " \
1178 "(Solaris & Linux only)") \ 1188 "(Solaris & Linux only)") \
1179 \ 1189 \
1200 product(bool, UseFastJNIAccessors, true, \ 1210 product(bool, UseFastJNIAccessors, true, \
1201 "Use optimized versions of Get<Primitive>Field") \ 1211 "Use optimized versions of Get<Primitive>Field") \
1202 \ 1212 \
1203 product(bool, EagerXrunInit, false, \ 1213 product(bool, EagerXrunInit, false, \
1204 "Eagerly initialize -Xrun libraries; allows startup profiling, " \ 1214 "Eagerly initialize -Xrun libraries; allows startup profiling, " \
1205 " but not all -Xrun libraries may support the state of the VM at this time") \ 1215 "but not all -Xrun libraries may support the state of the VM " \
1216 "at this time") \
1206 \ 1217 \
1207 product(bool, PreserveAllAnnotations, false, \ 1218 product(bool, PreserveAllAnnotations, false, \
1208 "Preserve RuntimeInvisibleAnnotations as well as RuntimeVisibleAnnotations") \ 1219 "Preserve RuntimeInvisibleAnnotations as well " \
1220 "as RuntimeVisibleAnnotations") \
1209 \ 1221 \
1210 develop(uintx, PreallocatedOutOfMemoryErrorCount, 4, \ 1222 develop(uintx, PreallocatedOutOfMemoryErrorCount, 4, \
1211 "Number of OutOfMemoryErrors preallocated with backtrace") \ 1223 "Number of OutOfMemoryErrors preallocated with backtrace") \
1212 \ 1224 \
1213 product(bool, LazyBootClassLoader, true, \ 1225 product(bool, LazyBootClassLoader, true, \
1278 \ 1290 \
1279 product(intx, TraceRedefineClasses, 0, \ 1291 product(intx, TraceRedefineClasses, 0, \
1280 "Trace level for JVMTI RedefineClasses") \ 1292 "Trace level for JVMTI RedefineClasses") \
1281 \ 1293 \
1282 develop(bool, StressMethodComparator, false, \ 1294 develop(bool, StressMethodComparator, false, \
1283 "run the MethodComparator on all loaded methods") \ 1295 "Run the MethodComparator on all loaded methods") \
1284 \ 1296 \
1285 /* change to false by default sometime after Mustang */ \ 1297 /* change to false by default sometime after Mustang */ \
1286 product(bool, VerifyMergedCPBytecodes, true, \ 1298 product(bool, VerifyMergedCPBytecodes, true, \
1287 "Verify bytecodes after RedefineClasses constant pool merging") \ 1299 "Verify bytecodes after RedefineClasses constant pool merging") \
1288 \ 1300 \
1312 \ 1324 \
1313 develop(bool, TraceDependencies, false, \ 1325 develop(bool, TraceDependencies, false, \
1314 "Trace dependencies") \ 1326 "Trace dependencies") \
1315 \ 1327 \
1316 develop(bool, VerifyDependencies, trueInDebug, \ 1328 develop(bool, VerifyDependencies, trueInDebug, \
1317 "Exercise and verify the compilation dependency mechanism") \ 1329 "Exercise and verify the compilation dependency mechanism") \
1318 \ 1330 \
1319 develop(bool, TraceNewOopMapGeneration, false, \ 1331 develop(bool, TraceNewOopMapGeneration, false, \
1320 "Trace OopMapGeneration") \ 1332 "Trace OopMapGeneration") \
1321 \ 1333 \
1322 develop(bool, TraceNewOopMapGenerationDetailed, false, \ 1334 develop(bool, TraceNewOopMapGenerationDetailed, false, \
1330 \ 1342 \
1331 develop(bool, TraceMonitorMismatch, false, \ 1343 develop(bool, TraceMonitorMismatch, false, \
1332 "Trace monitor matching failures during OopMapGeneration") \ 1344 "Trace monitor matching failures during OopMapGeneration") \
1333 \ 1345 \
1334 develop(bool, TraceOopMapRewrites, false, \ 1346 develop(bool, TraceOopMapRewrites, false, \
1335 "Trace rewritting of method oops during oop map generation") \ 1347 "Trace rewriting of method oops during oop map generation") \
1336 \ 1348 \
1337 develop(bool, TraceSafepoint, false, \ 1349 develop(bool, TraceSafepoint, false, \
1338 "Trace safepoint operations") \ 1350 "Trace safepoint operations") \
1339 \ 1351 \
1340 develop(bool, TraceICBuffer, false, \ 1352 develop(bool, TraceICBuffer, false, \
1348 \ 1360 \
1349 develop(bool, TraceStartupTime, false, \ 1361 develop(bool, TraceStartupTime, false, \
1350 "Trace setup time") \ 1362 "Trace setup time") \
1351 \ 1363 \
1352 develop(bool, TraceProtectionDomainVerification, false, \ 1364 develop(bool, TraceProtectionDomainVerification, false, \
1353 "Trace protection domain verifcation") \ 1365 "Trace protection domain verification") \
1354 \ 1366 \
1355 develop(bool, TraceClearedExceptions, false, \ 1367 develop(bool, TraceClearedExceptions, false, \
1356 "Prints when an exception is forcibly cleared") \ 1368 "Print when an exception is forcibly cleared") \
1357 \ 1369 \
1358 product(bool, TraceClassResolution, false, \ 1370 product(bool, TraceClassResolution, false, \
1359 "Trace all constant pool resolutions (for debugging)") \ 1371 "Trace all constant pool resolutions (for debugging)") \
1360 \ 1372 \
1361 product(bool, TraceBiasedLocking, false, \ 1373 product(bool, TraceBiasedLocking, false, \
1365 "Trace monitor inflation in JVM") \ 1377 "Trace monitor inflation in JVM") \
1366 \ 1378 \
1367 /* gc */ \ 1379 /* gc */ \
1368 \ 1380 \
1369 product(bool, UseSerialGC, false, \ 1381 product(bool, UseSerialGC, false, \
1370 "Use the serial garbage collector") \ 1382 "Use the Serial garbage collector") \
1371 \ 1383 \
1372 product(bool, UseG1GC, false, \ 1384 product(bool, UseG1GC, false, \
1373 "Use the Garbage-First garbage collector") \ 1385 "Use the Garbage-First garbage collector") \
1374 \ 1386 \
1375 product(bool, UseParallelGC, false, \ 1387 product(bool, UseParallelGC, false, \
1384 \ 1396 \
1385 product(uintx, HeapFirstMaximumCompactionCount, 3, \ 1397 product(uintx, HeapFirstMaximumCompactionCount, 3, \
1386 "The collection count for the first maximum compaction") \ 1398 "The collection count for the first maximum compaction") \
1387 \ 1399 \
1388 product(bool, UseMaximumCompactionOnSystemGC, true, \ 1400 product(bool, UseMaximumCompactionOnSystemGC, true, \
1389 "In the Parallel Old garbage collector maximum compaction for " \ 1401 "Use maximum compaction in the Parallel Old garbage collector " \
1390 "a system GC") \ 1402 "for a system GC") \
1391 \ 1403 \
1392 product(uintx, ParallelOldDeadWoodLimiterMean, 50, \ 1404 product(uintx, ParallelOldDeadWoodLimiterMean, 50, \
1393 "The mean used by the par compact dead wood" \ 1405 "The mean used by the parallel compact dead wood " \
1394 "limiter (a number between 0-100).") \ 1406 "limiter (a number between 0-100)") \
1395 \ 1407 \
1396 product(uintx, ParallelOldDeadWoodLimiterStdDev, 80, \ 1408 product(uintx, ParallelOldDeadWoodLimiterStdDev, 80, \
1397 "The standard deviation used by the par compact dead wood" \ 1409 "The standard deviation used by the parallel compact dead wood " \
1398 "limiter (a number between 0-100).") \ 1410 "limiter (a number between 0-100)") \
1399 \ 1411 \
1400 product(uintx, ParallelGCThreads, 0, \ 1412 product(uintx, ParallelGCThreads, 0, \
1401 "Number of parallel threads parallel gc will use") \ 1413 "Number of parallel threads parallel gc will use") \
1402 \ 1414 \
1403 product(bool, UseDynamicNumberOfGCThreads, false, \ 1415 product(bool, UseDynamicNumberOfGCThreads, false, \
1404 "Dynamically choose the number of parallel threads " \ 1416 "Dynamically choose the number of parallel threads " \
1405 "parallel gc will use") \ 1417 "parallel gc will use") \
1406 \ 1418 \
1407 diagnostic(bool, ForceDynamicNumberOfGCThreads, false, \ 1419 diagnostic(bool, ForceDynamicNumberOfGCThreads, false, \
1408 "Force dynamic selection of the number of" \ 1420 "Force dynamic selection of the number of " \
1409 "parallel threads parallel gc will use to aid debugging") \ 1421 "parallel threads parallel gc will use to aid debugging") \
1410 \ 1422 \
1411 product(uintx, HeapSizePerGCThread, ScaleForWordSize(64*M), \ 1423 product(uintx, HeapSizePerGCThread, ScaleForWordSize(64*M), \
1412 "Size of heap (bytes) per GC thread used in calculating the " \ 1424 "Size of heap (bytes) per GC thread used in calculating the " \
1413 "number of GC threads") \ 1425 "number of GC threads") \
1414 \ 1426 \
1415 product(bool, TraceDynamicGCThreads, false, \ 1427 product(bool, TraceDynamicGCThreads, false, \
1416 "Trace the dynamic GC thread usage") \ 1428 "Trace the dynamic GC thread usage") \
1417 \ 1429 \
1418 develop(bool, ParallelOldGCSplitALot, false, \ 1430 develop(bool, ParallelOldGCSplitALot, false, \
1419 "Provoke splitting (copying data from a young gen space to" \ 1431 "Provoke splitting (copying data from a young gen space to " \
1420 "multiple destination spaces)") \ 1432 "multiple destination spaces)") \
1421 \ 1433 \
1422 develop(uintx, ParallelOldGCSplitInterval, 3, \ 1434 develop(uintx, ParallelOldGCSplitInterval, 3, \
1423 "How often to provoke splitting a young gen space") \ 1435 "How often to provoke splitting a young gen space") \
1424 \ 1436 \
1425 product(uintx, ConcGCThreads, 0, \ 1437 product(uintx, ConcGCThreads, 0, \
1426 "Number of threads concurrent gc will use") \ 1438 "Number of threads concurrent gc will use") \
1427 \ 1439 \
1428 product(uintx, YoungPLABSize, 4096, \ 1440 product(uintx, YoungPLABSize, 4096, \
1429 "Size of young gen promotion labs (in HeapWords)") \ 1441 "Size of young gen promotion LAB's (in HeapWords)") \
1430 \ 1442 \
1431 product(uintx, OldPLABSize, 1024, \ 1443 product(uintx, OldPLABSize, 1024, \
1432 "Size of old gen promotion labs (in HeapWords)") \ 1444 "Size of old gen promotion LAB's (in HeapWords)") \
1433 \ 1445 \
1434 product(uintx, GCTaskTimeStampEntries, 200, \ 1446 product(uintx, GCTaskTimeStampEntries, 200, \
1435 "Number of time stamp entries per gc worker thread") \ 1447 "Number of time stamp entries per gc worker thread") \
1436 \ 1448 \
1437 product(bool, AlwaysTenure, false, \ 1449 product(bool, AlwaysTenure, false, \
1438 "Always tenure objects in eden. (ParallelGC only)") \ 1450 "Always tenure objects in eden (ParallelGC only)") \
1439 \ 1451 \
1440 product(bool, NeverTenure, false, \ 1452 product(bool, NeverTenure, false, \
1441 "Never tenure objects in eden, May tenure on overflow " \ 1453 "Never tenure objects in eden, may tenure on overflow " \
1442 "(ParallelGC only)") \ 1454 "(ParallelGC only)") \
1443 \ 1455 \
1444 product(bool, ScavengeBeforeFullGC, true, \ 1456 product(bool, ScavengeBeforeFullGC, true, \
1445 "Scavenge youngest generation before each full GC, " \ 1457 "Scavenge youngest generation before each full GC, " \
1446 "used with UseParallelGC") \ 1458 "used with UseParallelGC") \
1447 \ 1459 \
1448 develop(bool, ScavengeWithObjectsInToSpace, false, \ 1460 develop(bool, ScavengeWithObjectsInToSpace, false, \
1449 "Allow scavenges to occur when to_space contains objects.") \ 1461 "Allow scavenges to occur when to-space contains objects") \
1450 \ 1462 \
1451 product(bool, UseConcMarkSweepGC, false, \ 1463 product(bool, UseConcMarkSweepGC, false, \
1452 "Use Concurrent Mark-Sweep GC in the old generation") \ 1464 "Use Concurrent Mark-Sweep GC in the old generation") \
1453 \ 1465 \
1454 product(bool, ExplicitGCInvokesConcurrent, false, \ 1466 product(bool, ExplicitGCInvokesConcurrent, false, \
1455 "A System.gc() request invokes a concurrent collection;" \ 1467 "A System.gc() request invokes a concurrent collection; " \
1456 " (effective only when UseConcMarkSweepGC)") \ 1468 "(effective only when UseConcMarkSweepGC)") \
1457 \ 1469 \
1458 product(bool, ExplicitGCInvokesConcurrentAndUnloadsClasses, false, \ 1470 product(bool, ExplicitGCInvokesConcurrentAndUnloadsClasses, false, \
1459 "A System.gc() request invokes a concurrent collection and " \ 1471 "A System.gc() request invokes a concurrent collection and " \
1460 "also unloads classes during such a concurrent gc cycle " \ 1472 "also unloads classes during such a concurrent gc cycle " \
1461 "(effective only when UseConcMarkSweepGC)") \ 1473 "(effective only when UseConcMarkSweepGC)") \
1462 \ 1474 \
1463 product(bool, GCLockerInvokesConcurrent, false, \ 1475 product(bool, GCLockerInvokesConcurrent, false, \
1464 "The exit of a JNI CS necessitating a scavenge also" \ 1476 "The exit of a JNI critical section necessitating a scavenge, " \
1465 " kicks off a bkgrd concurrent collection") \ 1477 "also kicks off a background concurrent collection") \
1466 \ 1478 \
1467 product(uintx, GCLockerEdenExpansionPercent, 5, \ 1479 product(uintx, GCLockerEdenExpansionPercent, 5, \
1468 "How much the GC can expand the eden by while the GC locker " \ 1480 "How much the GC can expand the eden by while the GC locker " \
1469 "is active (as a percentage)") \ 1481 "is active (as a percentage)") \
1470 \ 1482 \
1471 diagnostic(intx, GCLockerRetryAllocationCount, 2, \ 1483 diagnostic(intx, GCLockerRetryAllocationCount, 2, \
1472 "Number of times to retry allocations when" \ 1484 "Number of times to retry allocations when " \
1473 " blocked by the GC locker") \ 1485 "blocked by the GC locker") \
1474 \ 1486 \
1475 develop(bool, UseCMSAdaptiveFreeLists, true, \ 1487 develop(bool, UseCMSAdaptiveFreeLists, true, \
1476 "Use Adaptive Free Lists in the CMS generation") \ 1488 "Use adaptive free lists in the CMS generation") \
1477 \ 1489 \
1478 develop(bool, UseAsyncConcMarkSweepGC, true, \ 1490 develop(bool, UseAsyncConcMarkSweepGC, true, \
1479 "Use Asynchronous Concurrent Mark-Sweep GC in the old generation")\ 1491 "Use Asynchronous Concurrent Mark-Sweep GC in the old generation")\
1480 \ 1492 \
1481 develop(bool, RotateCMSCollectionTypes, false, \ 1493 develop(bool, RotateCMSCollectionTypes, false, \
1486 \ 1498 \
1487 product(bool, UseCMSCollectionPassing, true, \ 1499 product(bool, UseCMSCollectionPassing, true, \
1488 "Use passing of collection from background to foreground") \ 1500 "Use passing of collection from background to foreground") \
1489 \ 1501 \
1490 product(bool, UseParNewGC, false, \ 1502 product(bool, UseParNewGC, false, \
1491 "Use parallel threads in the new generation.") \ 1503 "Use parallel threads in the new generation") \
1492 \ 1504 \
1493 product(bool, ParallelGCVerbose, false, \ 1505 product(bool, ParallelGCVerbose, false, \
1494 "Verbose output for parallel GC.") \ 1506 "Verbose output for parallel gc") \
1495 \ 1507 \
1496 product(uintx, ParallelGCBufferWastePct, 10, \ 1508 product(uintx, ParallelGCBufferWastePct, 10, \
1497 "Wasted fraction of parallel allocation buffer.") \ 1509 "Wasted fraction of parallel allocation buffer") \
1498 \ 1510 \
1499 diagnostic(bool, ParallelGCRetainPLAB, false, \ 1511 diagnostic(bool, ParallelGCRetainPLAB, false, \
1500 "Retain parallel allocation buffers across scavenges; " \ 1512 "Retain parallel allocation buffers across scavenges; " \
1501 " -- disabled because this currently conflicts with " \ 1513 "it is disabled because this currently conflicts with " \
1502 " parallel card scanning under certain conditions ") \ 1514 "parallel card scanning under certain conditions.") \
1503 \ 1515 \
1504 product(uintx, TargetPLABWastePct, 10, \ 1516 product(uintx, TargetPLABWastePct, 10, \
1505 "Target wasted space in last buffer as percent of overall " \ 1517 "Target wasted space in last buffer as percent of overall " \
1506 "allocation") \ 1518 "allocation") \
1507 \ 1519 \
1508 product(uintx, PLABWeight, 75, \ 1520 product(uintx, PLABWeight, 75, \
1509 "Percentage (0-100) used to weight the current sample when" \ 1521 "Percentage (0-100) used to weigh the current sample when " \
1510 "computing exponentially decaying average for ResizePLAB.") \ 1522 "computing exponentially decaying average for ResizePLAB") \
1511 \ 1523 \
1512 product(bool, ResizePLAB, true, \ 1524 product(bool, ResizePLAB, true, \
1513 "Dynamically resize (survivor space) promotion labs") \ 1525 "Dynamically resize (survivor space) promotion LAB's") \
1514 \ 1526 \
1515 product(bool, PrintPLAB, false, \ 1527 product(bool, PrintPLAB, false, \
1516 "Print (survivor space) promotion labs sizing decisions") \ 1528 "Print (survivor space) promotion LAB's sizing decisions") \
1517 \ 1529 \
1518 product(intx, ParGCArrayScanChunk, 50, \ 1530 product(intx, ParGCArrayScanChunk, 50, \
1519 "Scan a subset and push remainder, if array is bigger than this") \ 1531 "Scan a subset of object array and push remainder, if array is " \
1532 "bigger than this") \
1520 \ 1533 \
1521 product(bool, ParGCUseLocalOverflow, false, \ 1534 product(bool, ParGCUseLocalOverflow, false, \
1522 "Instead of a global overflow list, use local overflow stacks") \ 1535 "Instead of a global overflow list, use local overflow stacks") \
1523 \ 1536 \
1524 product(bool, ParGCTrimOverflow, true, \ 1537 product(bool, ParGCTrimOverflow, true, \
1525 "Eagerly trim the local overflow lists (when ParGCUseLocalOverflow") \ 1538 "Eagerly trim the local overflow lists " \
1539 "(when ParGCUseLocalOverflow)") \
1526 \ 1540 \
1527 notproduct(bool, ParGCWorkQueueOverflowALot, false, \ 1541 notproduct(bool, ParGCWorkQueueOverflowALot, false, \
1528 "Whether we should simulate work queue overflow in ParNew") \ 1542 "Simulate work queue overflow in ParNew") \
1529 \ 1543 \
1530 notproduct(uintx, ParGCWorkQueueOverflowInterval, 1000, \ 1544 notproduct(uintx, ParGCWorkQueueOverflowInterval, 1000, \
1531 "An `interval' counter that determines how frequently " \ 1545 "An `interval' counter that determines how frequently " \
1532 "we simulate overflow; a smaller number increases frequency") \ 1546 "we simulate overflow; a smaller number increases frequency") \
1533 \ 1547 \
1541 diagnostic(intx, ParGCCardsPerStrideChunk, 256, \ 1555 diagnostic(intx, ParGCCardsPerStrideChunk, 256, \
1542 "The number of cards in each chunk of the parallel chunks used " \ 1556 "The number of cards in each chunk of the parallel chunks used " \
1543 "during card table scanning") \ 1557 "during card table scanning") \
1544 \ 1558 \
1545 product(uintx, CMSParPromoteBlocksToClaim, 16, \ 1559 product(uintx, CMSParPromoteBlocksToClaim, 16, \
1546 "Number of blocks to attempt to claim when refilling CMS LAB for "\ 1560 "Number of blocks to attempt to claim when refilling CMS LAB's " \
1547 "parallel GC.") \ 1561 "for parallel GC") \
1548 \ 1562 \
1549 product(uintx, OldPLABWeight, 50, \ 1563 product(uintx, OldPLABWeight, 50, \
1550 "Percentage (0-100) used to weight the current sample when" \ 1564 "Percentage (0-100) used to weight the current sample when " \
1551 "computing exponentially decaying average for resizing CMSParPromoteBlocksToClaim.") \ 1565 "computing exponentially decaying average for resizing " \
1566 "CMSParPromoteBlocksToClaim") \
1552 \ 1567 \
1553 product(bool, ResizeOldPLAB, true, \ 1568 product(bool, ResizeOldPLAB, true, \
1554 "Dynamically resize (old gen) promotion labs") \ 1569 "Dynamically resize (old gen) promotion LAB's") \
1555 \ 1570 \
1556 product(bool, PrintOldPLAB, false, \ 1571 product(bool, PrintOldPLAB, false, \
1557 "Print (old gen) promotion labs sizing decisions") \ 1572 "Print (old gen) promotion LAB's sizing decisions") \
1558 \ 1573 \
1559 product(uintx, CMSOldPLABMin, 16, \ 1574 product(uintx, CMSOldPLABMin, 16, \
1560 "Min size of CMS gen promotion lab caches per worker per blksize")\ 1575 "Minimum size of CMS gen promotion LAB caches per worker " \
1576 "per block size") \
1561 \ 1577 \
1562 product(uintx, CMSOldPLABMax, 1024, \ 1578 product(uintx, CMSOldPLABMax, 1024, \
1563 "Max size of CMS gen promotion lab caches per worker per blksize")\ 1579 "Maximum size of CMS gen promotion LAB caches per worker " \
1580 "per block size") \
1564 \ 1581 \
1565 product(uintx, CMSOldPLABNumRefills, 4, \ 1582 product(uintx, CMSOldPLABNumRefills, 4, \
1566 "Nominal number of refills of CMS gen promotion lab cache" \ 1583 "Nominal number of refills of CMS gen promotion LAB cache " \
1567 " per worker per block size") \ 1584 "per worker per block size") \
1568 \ 1585 \
1569 product(bool, CMSOldPLABResizeQuicker, false, \ 1586 product(bool, CMSOldPLABResizeQuicker, false, \
1570 "Whether to react on-the-fly during a scavenge to a sudden" \ 1587 "React on-the-fly during a scavenge to a sudden " \
1571 " change in block demand rate") \ 1588 "change in block demand rate") \
1572 \ 1589 \
1573 product(uintx, CMSOldPLABToleranceFactor, 4, \ 1590 product(uintx, CMSOldPLABToleranceFactor, 4, \
1574 "The tolerance of the phase-change detector for on-the-fly" \ 1591 "The tolerance of the phase-change detector for on-the-fly " \
1575 " PLAB resizing during a scavenge") \ 1592 "PLAB resizing during a scavenge") \
1576 \ 1593 \
1577 product(uintx, CMSOldPLABReactivityFactor, 2, \ 1594 product(uintx, CMSOldPLABReactivityFactor, 2, \
1578 "The gain in the feedback loop for on-the-fly PLAB resizing" \ 1595 "The gain in the feedback loop for on-the-fly PLAB resizing " \
1579 " during a scavenge") \ 1596 "during a scavenge") \
1580 \ 1597 \
1581 product(bool, AlwaysPreTouch, false, \ 1598 product(bool, AlwaysPreTouch, false, \
1582 "It forces all freshly committed pages to be pre-touched.") \ 1599 "Force all freshly committed pages to be pre-touched") \
1583 \ 1600 \
1584 product_pd(uintx, CMSYoungGenPerWorker, \ 1601 product_pd(uintx, CMSYoungGenPerWorker, \
1585 "The maximum size of young gen chosen by default per GC worker " \ 1602 "The maximum size of young gen chosen by default per GC worker " \
1586 "thread available") \ 1603 "thread available") \
1587 \ 1604 \
1588 product(bool, CMSIncrementalMode, false, \ 1605 product(bool, CMSIncrementalMode, false, \
1589 "Whether CMS GC should operate in \"incremental\" mode") \ 1606 "Whether CMS GC should operate in \"incremental\" mode") \
1590 \ 1607 \
1591 product(uintx, CMSIncrementalDutyCycle, 10, \ 1608 product(uintx, CMSIncrementalDutyCycle, 10, \
1592 "CMS incremental mode duty cycle (a percentage, 0-100). If" \ 1609 "Percentage (0-100) of CMS incremental mode duty cycle. If " \
1593 "CMSIncrementalPacing is enabled, then this is just the initial" \ 1610 "CMSIncrementalPacing is enabled, then this is just the initial " \
1594 "value") \ 1611 "value.") \
1595 \ 1612 \
1596 product(bool, CMSIncrementalPacing, true, \ 1613 product(bool, CMSIncrementalPacing, true, \
1597 "Whether the CMS incremental mode duty cycle should be " \ 1614 "Whether the CMS incremental mode duty cycle should be " \
1598 "automatically adjusted") \ 1615 "automatically adjusted") \
1599 \ 1616 \
1600 product(uintx, CMSIncrementalDutyCycleMin, 0, \ 1617 product(uintx, CMSIncrementalDutyCycleMin, 0, \
1601 "Lower bound on the duty cycle when CMSIncrementalPacing is " \ 1618 "Minimum percentage (0-100) of the CMS incremental duty cycle " \
1602 "enabled (a percentage, 0-100)") \ 1619 "used when CMSIncrementalPacing is enabled") \
1603 \ 1620 \
1604 product(uintx, CMSIncrementalSafetyFactor, 10, \ 1621 product(uintx, CMSIncrementalSafetyFactor, 10, \
1605 "Percentage (0-100) used to add conservatism when computing the " \ 1622 "Percentage (0-100) used to add conservatism when computing the " \
1606 "duty cycle") \ 1623 "duty cycle") \
1607 \ 1624 \
1608 product(uintx, CMSIncrementalOffset, 0, \ 1625 product(uintx, CMSIncrementalOffset, 0, \
1609 "Percentage (0-100) by which the CMS incremental mode duty cycle" \ 1626 "Percentage (0-100) by which the CMS incremental mode duty cycle "\
1610 " is shifted to the right within the period between young GCs") \ 1627 "is shifted to the right within the period between young GCs") \
1611 \ 1628 \
1612 product(uintx, CMSExpAvgFactor, 50, \ 1629 product(uintx, CMSExpAvgFactor, 50, \
1613 "Percentage (0-100) used to weight the current sample when" \ 1630 "Percentage (0-100) used to weigh the current sample when " \
1614 "computing exponential averages for CMS statistics.") \ 1631 "computing exponential averages for CMS statistics") \
1615 \ 1632 \
1616 product(uintx, CMS_FLSWeight, 75, \ 1633 product(uintx, CMS_FLSWeight, 75, \
1617 "Percentage (0-100) used to weight the current sample when" \ 1634 "Percentage (0-100) used to weigh the current sample when " \
1618 "computing exponentially decating averages for CMS FLS statistics.") \ 1635 "computing exponentially decaying averages for CMS FLS " \
1636 "statistics") \
1619 \ 1637 \
1620 product(uintx, CMS_FLSPadding, 1, \ 1638 product(uintx, CMS_FLSPadding, 1, \
1621 "The multiple of deviation from mean to use for buffering" \ 1639 "The multiple of deviation from mean to use for buffering " \
1622 "against volatility in free list demand.") \ 1640 "against volatility in free list demand") \
1623 \ 1641 \
1624 product(uintx, FLSCoalescePolicy, 2, \ 1642 product(uintx, FLSCoalescePolicy, 2, \
1625 "CMS: Aggression level for coalescing, increasing from 0 to 4") \ 1643 "CMS: aggressiveness level for coalescing, increasing " \
1644 "from 0 to 4") \
1626 \ 1645 \
1627 product(bool, FLSAlwaysCoalesceLarge, false, \ 1646 product(bool, FLSAlwaysCoalesceLarge, false, \
1628 "CMS: Larger free blocks are always available for coalescing") \ 1647 "CMS: larger free blocks are always available for coalescing") \
1629 \ 1648 \
1630 product(double, FLSLargestBlockCoalesceProximity, 0.99, \ 1649 product(double, FLSLargestBlockCoalesceProximity, 0.99, \
1631 "CMS: the smaller the percentage the greater the coalition force")\ 1650 "CMS: the smaller the percentage the greater the coalescing " \
1651 "force") \
1632 \ 1652 \
1633 product(double, CMSSmallCoalSurplusPercent, 1.05, \ 1653 product(double, CMSSmallCoalSurplusPercent, 1.05, \
1634 "CMS: the factor by which to inflate estimated demand of small" \ 1654 "CMS: the factor by which to inflate estimated demand of small " \
1635 " block sizes to prevent coalescing with an adjoining block") \ 1655 "block sizes to prevent coalescing with an adjoining block") \
1636 \ 1656 \
1637 product(double, CMSLargeCoalSurplusPercent, 0.95, \ 1657 product(double, CMSLargeCoalSurplusPercent, 0.95, \
1638 "CMS: the factor by which to inflate estimated demand of large" \ 1658 "CMS: the factor by which to inflate estimated demand of large " \
1639 " block sizes to prevent coalescing with an adjoining block") \ 1659 "block sizes to prevent coalescing with an adjoining block") \
1640 \ 1660 \
1641 product(double, CMSSmallSplitSurplusPercent, 1.10, \ 1661 product(double, CMSSmallSplitSurplusPercent, 1.10, \
1642 "CMS: the factor by which to inflate estimated demand of small" \ 1662 "CMS: the factor by which to inflate estimated demand of small " \
1643 " block sizes to prevent splitting to supply demand for smaller" \ 1663 "block sizes to prevent splitting to supply demand for smaller " \
1644 " blocks") \ 1664 "blocks") \
1645 \ 1665 \
1646 product(double, CMSLargeSplitSurplusPercent, 1.00, \ 1666 product(double, CMSLargeSplitSurplusPercent, 1.00, \
1647 "CMS: the factor by which to inflate estimated demand of large" \ 1667 "CMS: the factor by which to inflate estimated demand of large " \
1648 " block sizes to prevent splitting to supply demand for smaller" \ 1668 "block sizes to prevent splitting to supply demand for smaller " \
1649 " blocks") \ 1669 "blocks") \
1650 \ 1670 \
1651 product(bool, CMSExtrapolateSweep, false, \ 1671 product(bool, CMSExtrapolateSweep, false, \
1652 "CMS: cushion for block demand during sweep") \ 1672 "CMS: cushion for block demand during sweep") \
1653 \ 1673 \
1654 product(uintx, CMS_SweepWeight, 75, \ 1674 product(uintx, CMS_SweepWeight, 75, \
1656 "computing exponentially decaying average for inter-sweep " \ 1676 "computing exponentially decaying average for inter-sweep " \
1657 "duration") \ 1677 "duration") \
1658 \ 1678 \
1659 product(uintx, CMS_SweepPadding, 1, \ 1679 product(uintx, CMS_SweepPadding, 1, \
1660 "The multiple of deviation from mean to use for buffering " \ 1680 "The multiple of deviation from mean to use for buffering " \
1661 "against volatility in inter-sweep duration.") \ 1681 "against volatility in inter-sweep duration") \
1662 \ 1682 \
1663 product(uintx, CMS_SweepTimerThresholdMillis, 10, \ 1683 product(uintx, CMS_SweepTimerThresholdMillis, 10, \
1664 "Skip block flux-rate sampling for an epoch unless inter-sweep " \ 1684 "Skip block flux-rate sampling for an epoch unless inter-sweep " \
1665 "duration exceeds this threhold in milliseconds") \ 1685 "duration exceeds this threshold in milliseconds") \
1666 \ 1686 \
1667 develop(bool, CMSTraceIncrementalMode, false, \ 1687 develop(bool, CMSTraceIncrementalMode, false, \
1668 "Trace CMS incremental mode") \ 1688 "Trace CMS incremental mode") \
1669 \ 1689 \
1670 develop(bool, CMSTraceIncrementalPacing, false, \ 1690 develop(bool, CMSTraceIncrementalPacing, false, \
1675 \ 1695 \
1676 product(bool, CMSClassUnloadingEnabled, true, \ 1696 product(bool, CMSClassUnloadingEnabled, true, \
1677 "Whether class unloading enabled when using CMS GC") \ 1697 "Whether class unloading enabled when using CMS GC") \
1678 \ 1698 \
1679 product(uintx, CMSClassUnloadingMaxInterval, 0, \ 1699 product(uintx, CMSClassUnloadingMaxInterval, 0, \
1680 "When CMS class unloading is enabled, the maximum CMS cycle count"\ 1700 "When CMS class unloading is enabled, the maximum CMS cycle " \
1681 " for which classes may not be unloaded") \ 1701 "count for which classes may not be unloaded") \
1682 \ 1702 \
1683 product(bool, CMSCompactWhenClearAllSoftRefs, true, \ 1703 product(bool, CMSCompactWhenClearAllSoftRefs, true, \
1684 "Compact when asked to collect CMS gen with clear_all_soft_refs") \ 1704 "Compact when asked to collect CMS gen with " \
1705 "clear_all_soft_refs()") \
1685 \ 1706 \
1686 product(bool, UseCMSCompactAtFullCollection, true, \ 1707 product(bool, UseCMSCompactAtFullCollection, true, \
1687 "Use mark sweep compact at full collections") \ 1708 "Use Mark-Sweep-Compact algorithm at full collections") \
1688 \ 1709 \
1689 product(uintx, CMSFullGCsBeforeCompaction, 0, \ 1710 product(uintx, CMSFullGCsBeforeCompaction, 0, \
1690 "Number of CMS full collection done before compaction if > 0") \ 1711 "Number of CMS full collection done before compaction if > 0") \
1691 \ 1712 \
1692 develop(intx, CMSDictionaryChoice, 0, \ 1713 develop(intx, CMSDictionaryChoice, 0, \
1704 \ 1725 \
1705 product(bool, CMSLoopWarn, false, \ 1726 product(bool, CMSLoopWarn, false, \
1706 "Warn in case of excessive CMS looping") \ 1727 "Warn in case of excessive CMS looping") \
1707 \ 1728 \
1708 develop(bool, CMSOverflowEarlyRestoration, false, \ 1729 develop(bool, CMSOverflowEarlyRestoration, false, \
1709 "Whether preserved marks should be restored early") \ 1730 "Restore preserved marks early") \
1710 \ 1731 \
1711 product(uintx, MarkStackSize, NOT_LP64(32*K) LP64_ONLY(4*M), \ 1732 product(uintx, MarkStackSize, NOT_LP64(32*K) LP64_ONLY(4*M), \
1712 "Size of marking stack") \ 1733 "Size of marking stack") \
1713 \ 1734 \
1714 product(uintx, MarkStackSizeMax, NOT_LP64(4*M) LP64_ONLY(512*M), \ 1735 product(uintx, MarkStackSizeMax, NOT_LP64(4*M) LP64_ONLY(512*M), \
1715 "Max size of marking stack") \ 1736 "Maximum size of marking stack") \
1716 \ 1737 \
1717 notproduct(bool, CMSMarkStackOverflowALot, false, \ 1738 notproduct(bool, CMSMarkStackOverflowALot, false, \
1718 "Whether we should simulate frequent marking stack / work queue" \ 1739 "Simulate frequent marking stack / work queue overflow") \
1719 " overflow") \
1720 \ 1740 \
1721 notproduct(uintx, CMSMarkStackOverflowInterval, 1000, \ 1741 notproduct(uintx, CMSMarkStackOverflowInterval, 1000, \
1722 "An `interval' counter that determines how frequently" \ 1742 "An \"interval\" counter that determines how frequently " \
1723 " we simulate overflow; a smaller number increases frequency") \ 1743 "to simulate overflow; a smaller number increases frequency") \
1724 \ 1744 \
1725 product(uintx, CMSMaxAbortablePrecleanLoops, 0, \ 1745 product(uintx, CMSMaxAbortablePrecleanLoops, 0, \
1726 "(Temporary, subject to experimentation)" \ 1746 "(Temporary, subject to experimentation) " \
1727 "Maximum number of abortable preclean iterations, if > 0") \ 1747 "Maximum number of abortable preclean iterations, if > 0") \
1728 \ 1748 \
1729 product(intx, CMSMaxAbortablePrecleanTime, 5000, \ 1749 product(intx, CMSMaxAbortablePrecleanTime, 5000, \
1730 "(Temporary, subject to experimentation)" \ 1750 "(Temporary, subject to experimentation) " \
1731 "Maximum time in abortable preclean in ms") \ 1751 "Maximum time in abortable preclean (in milliseconds)") \
1732 \ 1752 \
1733 product(uintx, CMSAbortablePrecleanMinWorkPerIteration, 100, \ 1753 product(uintx, CMSAbortablePrecleanMinWorkPerIteration, 100, \
1734 "(Temporary, subject to experimentation)" \ 1754 "(Temporary, subject to experimentation) " \
1735 "Nominal minimum work per abortable preclean iteration") \ 1755 "Nominal minimum work per abortable preclean iteration") \
1736 \ 1756 \
1737 manageable(intx, CMSAbortablePrecleanWaitMillis, 100, \ 1757 manageable(intx, CMSAbortablePrecleanWaitMillis, 100, \
1738 "(Temporary, subject to experimentation)" \ 1758 "(Temporary, subject to experimentation) " \
1739 " Time that we sleep between iterations when not given" \ 1759 "Time that we sleep between iterations when not given " \
1740 " enough work per iteration") \ 1760 "enough work per iteration") \
1741 \ 1761 \
1742 product(uintx, CMSRescanMultiple, 32, \ 1762 product(uintx, CMSRescanMultiple, 32, \
1743 "Size (in cards) of CMS parallel rescan task") \ 1763 "Size (in cards) of CMS parallel rescan task") \
1744 \ 1764 \
1745 product(uintx, CMSConcMarkMultiple, 32, \ 1765 product(uintx, CMSConcMarkMultiple, 32, \
1753 \ 1773 \
1754 product(bool, CMSParallelRemarkEnabled, true, \ 1774 product(bool, CMSParallelRemarkEnabled, true, \
1755 "Whether parallel remark enabled (only if ParNewGC)") \ 1775 "Whether parallel remark enabled (only if ParNewGC)") \
1756 \ 1776 \
1757 product(bool, CMSParallelSurvivorRemarkEnabled, true, \ 1777 product(bool, CMSParallelSurvivorRemarkEnabled, true, \
1758 "Whether parallel remark of survivor space" \ 1778 "Whether parallel remark of survivor space " \
1759 " enabled (effective only if CMSParallelRemarkEnabled)") \ 1779 "enabled (effective only if CMSParallelRemarkEnabled)") \
1760 \ 1780 \
1761 product(bool, CMSPLABRecordAlways, true, \ 1781 product(bool, CMSPLABRecordAlways, true, \
1762 "Whether to always record survivor space PLAB bdries" \ 1782 "Always record survivor space PLAB boundaries (effective only " \
1763 " (effective only if CMSParallelSurvivorRemarkEnabled)") \ 1783 "if CMSParallelSurvivorRemarkEnabled)") \
1764 \ 1784 \
1765 product(bool, CMSEdenChunksRecordAlways, true, \ 1785 product(bool, CMSEdenChunksRecordAlways, true, \
1766 "Whether to always record eden chunks used for " \ 1786 "Always record eden chunks used for the parallel initial mark " \
1767 "the parallel initial mark or remark of eden" ) \ 1787 "or remark of eden") \
1768 \ 1788 \
1769 product(bool, CMSPrintEdenSurvivorChunks, false, \ 1789 product(bool, CMSPrintEdenSurvivorChunks, false, \
1770 "Print the eden and the survivor chunks used for the parallel " \ 1790 "Print the eden and the survivor chunks used for the parallel " \
1771 "initial mark or remark of the eden/survivor spaces") \ 1791 "initial mark or remark of the eden/survivor spaces") \
1772 \ 1792 \
1773 product(bool, CMSConcurrentMTEnabled, true, \ 1793 product(bool, CMSConcurrentMTEnabled, true, \
1774 "Whether multi-threaded concurrent work enabled (if ParNewGC)") \ 1794 "Whether multi-threaded concurrent work enabled " \
1795 "(effective only if ParNewGC)") \
1775 \ 1796 \
1776 product(bool, CMSPrecleaningEnabled, true, \ 1797 product(bool, CMSPrecleaningEnabled, true, \
1777 "Whether concurrent precleaning enabled") \ 1798 "Whether concurrent precleaning enabled") \
1778 \ 1799 \
1779 product(uintx, CMSPrecleanIter, 3, \ 1800 product(uintx, CMSPrecleanIter, 3, \
1780 "Maximum number of precleaning iteration passes") \ 1801 "Maximum number of precleaning iteration passes") \
1781 \ 1802 \
1782 product(uintx, CMSPrecleanNumerator, 2, \ 1803 product(uintx, CMSPrecleanNumerator, 2, \
1783 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \ 1804 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence " \
1784 " ratio") \ 1805 "ratio") \
1785 \ 1806 \
1786 product(uintx, CMSPrecleanDenominator, 3, \ 1807 product(uintx, CMSPrecleanDenominator, 3, \
1787 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \ 1808 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence " \
1788 " ratio") \ 1809 "ratio") \
1789 \ 1810 \
1790 product(bool, CMSPrecleanRefLists1, true, \ 1811 product(bool, CMSPrecleanRefLists1, true, \
1791 "Preclean ref lists during (initial) preclean phase") \ 1812 "Preclean ref lists during (initial) preclean phase") \
1792 \ 1813 \
1793 product(bool, CMSPrecleanRefLists2, false, \ 1814 product(bool, CMSPrecleanRefLists2, false, \
1798 \ 1819 \
1799 product(bool, CMSPrecleanSurvivors2, true, \ 1820 product(bool, CMSPrecleanSurvivors2, true, \
1800 "Preclean survivors during abortable preclean phase") \ 1821 "Preclean survivors during abortable preclean phase") \
1801 \ 1822 \
1802 product(uintx, CMSPrecleanThreshold, 1000, \ 1823 product(uintx, CMSPrecleanThreshold, 1000, \
1803 "Don't re-iterate if #dirty cards less than this") \ 1824 "Do not iterate again if number of dirty cards is less than this")\
1804 \ 1825 \
1805 product(bool, CMSCleanOnEnter, true, \ 1826 product(bool, CMSCleanOnEnter, true, \
1806 "Clean-on-enter optimization for reducing number of dirty cards") \ 1827 "Clean-on-enter optimization for reducing number of dirty cards") \
1807 \ 1828 \
1808 product(uintx, CMSRemarkVerifyVariant, 1, \ 1829 product(uintx, CMSRemarkVerifyVariant, 1, \
1809 "Choose variant (1,2) of verification following remark") \ 1830 "Choose variant (1,2) of verification following remark") \
1810 \ 1831 \
1811 product(uintx, CMSScheduleRemarkEdenSizeThreshold, 2*M, \ 1832 product(uintx, CMSScheduleRemarkEdenSizeThreshold, 2*M, \
1812 "If Eden used is below this value, don't try to schedule remark") \ 1833 "If Eden size is below this, do not try to schedule remark") \
1813 \ 1834 \
1814 product(uintx, CMSScheduleRemarkEdenPenetration, 50, \ 1835 product(uintx, CMSScheduleRemarkEdenPenetration, 50, \
1815 "The Eden occupancy % at which to try and schedule remark pause") \ 1836 "The Eden occupancy percentage (0-100) at which " \
1837 "to try and schedule remark pause") \
1816 \ 1838 \
1817 product(uintx, CMSScheduleRemarkSamplingRatio, 5, \ 1839 product(uintx, CMSScheduleRemarkSamplingRatio, 5, \
1818 "Start sampling Eden top at least before yg occupancy reaches" \ 1840 "Start sampling eden top at least before young gen " \
1819 " 1/<ratio> of the size at which we plan to schedule remark") \ 1841 "occupancy reaches 1/<ratio> of the size at which " \
1842 "we plan to schedule remark") \
1820 \ 1843 \
1821 product(uintx, CMSSamplingGrain, 16*K, \ 1844 product(uintx, CMSSamplingGrain, 16*K, \
1822 "The minimum distance between eden samples for CMS (see above)") \ 1845 "The minimum distance between eden samples for CMS (see above)") \
1823 \ 1846 \
1824 product(bool, CMSScavengeBeforeRemark, false, \ 1847 product(bool, CMSScavengeBeforeRemark, false, \
1836 develop(uintx, CMSCheckInterval, 1000, \ 1859 develop(uintx, CMSCheckInterval, 1000, \
1837 "Interval in milliseconds that CMS thread checks if it " \ 1860 "Interval in milliseconds that CMS thread checks if it " \
1838 "should start a collection cycle") \ 1861 "should start a collection cycle") \
1839 \ 1862 \
1840 product(bool, CMSYield, true, \ 1863 product(bool, CMSYield, true, \
1841 "Yield between steps of concurrent mark & sweep") \ 1864 "Yield between steps of CMS") \
1842 \ 1865 \
1843 product(uintx, CMSBitMapYieldQuantum, 10*M, \ 1866 product(uintx, CMSBitMapYieldQuantum, 10*M, \
1844 "Bitmap operations should process at most this many bits" \ 1867 "Bitmap operations should process at most this many bits " \
1845 "between yields") \ 1868 "between yields") \
1846 \ 1869 \
1847 product(bool, CMSDumpAtPromotionFailure, false, \ 1870 product(bool, CMSDumpAtPromotionFailure, false, \
1848 "Dump useful information about the state of the CMS old " \ 1871 "Dump useful information about the state of the CMS old " \
1849 " generation upon a promotion failure.") \ 1872 "generation upon a promotion failure") \
1850 \ 1873 \
1851 product(bool, CMSPrintChunksInDump, false, \ 1874 product(bool, CMSPrintChunksInDump, false, \
1852 "In a dump enabled by CMSDumpAtPromotionFailure, include " \ 1875 "In a dump enabled by CMSDumpAtPromotionFailure, include " \
1853 " more detailed information about the free chunks.") \ 1876 "more detailed information about the free chunks") \
1854 \ 1877 \
1855 product(bool, CMSPrintObjectsInDump, false, \ 1878 product(bool, CMSPrintObjectsInDump, false, \
1856 "In a dump enabled by CMSDumpAtPromotionFailure, include " \ 1879 "In a dump enabled by CMSDumpAtPromotionFailure, include " \
1857 " more detailed information about the allocated objects.") \ 1880 "more detailed information about the allocated objects") \
1858 \ 1881 \
1859 diagnostic(bool, FLSVerifyAllHeapReferences, false, \ 1882 diagnostic(bool, FLSVerifyAllHeapReferences, false, \
1860 "Verify that all refs across the FLS boundary " \ 1883 "Verify that all references across the FLS boundary " \
1861 " are to valid objects") \ 1884 "are to valid objects") \
1862 \ 1885 \
1863 diagnostic(bool, FLSVerifyLists, false, \ 1886 diagnostic(bool, FLSVerifyLists, false, \
1864 "Do lots of (expensive) FreeListSpace verification") \ 1887 "Do lots of (expensive) FreeListSpace verification") \
1865 \ 1888 \
1866 diagnostic(bool, FLSVerifyIndexTable, false, \ 1889 diagnostic(bool, FLSVerifyIndexTable, false, \
1868 \ 1891 \
1869 develop(bool, FLSVerifyDictionary, false, \ 1892 develop(bool, FLSVerifyDictionary, false, \
1870 "Do lots of (expensive) FLS dictionary verification") \ 1893 "Do lots of (expensive) FLS dictionary verification") \
1871 \ 1894 \
1872 develop(bool, VerifyBlockOffsetArray, false, \ 1895 develop(bool, VerifyBlockOffsetArray, false, \
1873 "Do (expensive!) block offset array verification") \ 1896 "Do (expensive) block offset array verification") \
1874 \ 1897 \
1875 diagnostic(bool, BlockOffsetArrayUseUnallocatedBlock, false, \ 1898 diagnostic(bool, BlockOffsetArrayUseUnallocatedBlock, false, \
1876 "Maintain _unallocated_block in BlockOffsetArray" \ 1899 "Maintain _unallocated_block in BlockOffsetArray " \
1877 " (currently applicable only to CMS collector)") \ 1900 "(currently applicable only to CMS collector)") \
1878 \ 1901 \
1879 develop(bool, TraceCMSState, false, \ 1902 develop(bool, TraceCMSState, false, \
1880 "Trace the state of the CMS collection") \ 1903 "Trace the state of the CMS collection") \
1881 \ 1904 \
1882 product(intx, RefDiscoveryPolicy, 0, \ 1905 product(intx, RefDiscoveryPolicy, 0, \
1883 "Whether reference-based(0) or referent-based(1)") \ 1906 "Select type of reference discovery policy: " \
1907 "reference-based(0) or referent-based(1)") \
1884 \ 1908 \
1885 product(bool, ParallelRefProcEnabled, false, \ 1909 product(bool, ParallelRefProcEnabled, false, \
1886 "Enable parallel reference processing whenever possible") \ 1910 "Enable parallel reference processing whenever possible") \
1887 \ 1911 \
1888 product(bool, ParallelRefProcBalancingEnabled, true, \ 1912 product(bool, ParallelRefProcBalancingEnabled, true, \
1906 "concurrent GC cycle based on the occupancy of the entire heap, " \ 1930 "concurrent GC cycle based on the occupancy of the entire heap, " \
1907 "not just one of the generations (e.g., G1). A value of 0 " \ 1931 "not just one of the generations (e.g., G1). A value of 0 " \
1908 "denotes 'do constant GC cycles'.") \ 1932 "denotes 'do constant GC cycles'.") \
1909 \ 1933 \
1910 product(bool, UseCMSInitiatingOccupancyOnly, false, \ 1934 product(bool, UseCMSInitiatingOccupancyOnly, false, \
1911 "Only use occupancy as a crierion for starting a CMS collection") \ 1935 "Only use occupancy as a criterion for starting a CMS collection")\
1912 \ 1936 \
1913 product(uintx, CMSIsTooFullPercentage, 98, \ 1937 product(uintx, CMSIsTooFullPercentage, 98, \
1914 "An absolute ceiling above which CMS will always consider the " \ 1938 "An absolute ceiling above which CMS will always consider the " \
1915 "unloading of classes when class unloading is enabled") \ 1939 "unloading of classes when class unloading is enabled") \
1916 \ 1940 \
1918 "Check if the coalesced range is already in the " \ 1942 "Check if the coalesced range is already in the " \
1919 "free lists as claimed") \ 1943 "free lists as claimed") \
1920 \ 1944 \
1921 notproduct(bool, CMSVerifyReturnedBytes, false, \ 1945 notproduct(bool, CMSVerifyReturnedBytes, false, \
1922 "Check that all the garbage collected was returned to the " \ 1946 "Check that all the garbage collected was returned to the " \
1923 "free lists.") \ 1947 "free lists") \
1924 \ 1948 \
1925 notproduct(bool, ScavengeALot, false, \ 1949 notproduct(bool, ScavengeALot, false, \
1926 "Force scavenge at every Nth exit from the runtime system " \ 1950 "Force scavenge at every Nth exit from the runtime system " \
1927 "(N=ScavengeALotInterval)") \ 1951 "(N=ScavengeALotInterval)") \
1928 \ 1952 \
1933 notproduct(bool, GCALotAtAllSafepoints, false, \ 1957 notproduct(bool, GCALotAtAllSafepoints, false, \
1934 "Enforce ScavengeALot/GCALot at all potential safepoints") \ 1958 "Enforce ScavengeALot/GCALot at all potential safepoints") \
1935 \ 1959 \
1936 product(bool, PrintPromotionFailure, false, \ 1960 product(bool, PrintPromotionFailure, false, \
1937 "Print additional diagnostic information following " \ 1961 "Print additional diagnostic information following " \
1938 " promotion failure") \ 1962 "promotion failure") \
1939 \ 1963 \
1940 notproduct(bool, PromotionFailureALot, false, \ 1964 notproduct(bool, PromotionFailureALot, false, \
1941 "Use promotion failure handling on every youngest generation " \ 1965 "Use promotion failure handling on every youngest generation " \
1942 "collection") \ 1966 "collection") \
1943 \ 1967 \
1944 develop(uintx, PromotionFailureALotCount, 1000, \ 1968 develop(uintx, PromotionFailureALotCount, 1000, \
1945 "Number of promotion failures occurring at ParGCAllocBuffer" \ 1969 "Number of promotion failures occurring at ParGCAllocBuffer " \
1946 "refill attempts (ParNew) or promotion attempts " \ 1970 "refill attempts (ParNew) or promotion attempts " \
1947 "(other young collectors) ") \ 1971 "(other young collectors)") \
1948 \ 1972 \
1949 develop(uintx, PromotionFailureALotInterval, 5, \ 1973 develop(uintx, PromotionFailureALotInterval, 5, \
1950 "Total collections between promotion failures alot") \ 1974 "Total collections between promotion failures alot") \
1951 \ 1975 \
1952 experimental(uintx, WorkStealingSleepMillis, 1, \ 1976 experimental(uintx, WorkStealingSleepMillis, 1, \
1961 \ 1985 \
1962 experimental(uintx, WorkStealingSpinToYieldRatio, 10, \ 1986 experimental(uintx, WorkStealingSpinToYieldRatio, 10, \
1963 "Ratio of hard spins to calls to yield") \ 1987 "Ratio of hard spins to calls to yield") \
1964 \ 1988 \
1965 develop(uintx, ObjArrayMarkingStride, 512, \ 1989 develop(uintx, ObjArrayMarkingStride, 512, \
1966 "Number of ObjArray elements to push onto the marking stack" \ 1990 "Number of object array elements to push onto the marking stack " \
1967 "before pushing a continuation entry") \ 1991 "before pushing a continuation entry") \
1968 \ 1992 \
1969 develop(bool, MetadataAllocationFailALot, false, \ 1993 develop(bool, MetadataAllocationFailALot, false, \
1970 "Fail metadata allocations at intervals controlled by " \ 1994 "Fail metadata allocations at intervals controlled by " \
1971 "MetadataAllocationFailALotInterval") \ 1995 "MetadataAllocationFailALotInterval") \
1972 \ 1996 \
1973 develop(uintx, MetadataAllocationFailALotInterval, 1000, \ 1997 develop(uintx, MetadataAllocationFailALotInterval, 1000, \
1974 "metadata allocation failure alot interval") \ 1998 "Metadata allocation failure a lot interval") \
1975 \
1976 develop(bool, MetaDataDeallocateALot, false, \
1977 "Deallocation bunches of metadata at intervals controlled by " \
1978 "MetaDataAllocateALotInterval") \
1979 \
1980 develop(uintx, MetaDataDeallocateALotInterval, 100, \
1981 "Metadata deallocation alot interval") \
1982 \ 1999 \
1983 develop(bool, TraceMetadataChunkAllocation, false, \ 2000 develop(bool, TraceMetadataChunkAllocation, false, \
1984 "Trace chunk metadata allocations") \ 2001 "Trace chunk metadata allocations") \
1985 \ 2002 \
1986 product(bool, TraceMetadataHumongousAllocation, false, \ 2003 product(bool, TraceMetadataHumongousAllocation, false, \
1988 \ 2005 \
1989 develop(bool, TraceMetavirtualspaceAllocation, false, \ 2006 develop(bool, TraceMetavirtualspaceAllocation, false, \
1990 "Trace virtual space metadata allocations") \ 2007 "Trace virtual space metadata allocations") \
1991 \ 2008 \
1992 notproduct(bool, ExecuteInternalVMTests, false, \ 2009 notproduct(bool, ExecuteInternalVMTests, false, \
1993 "Enable execution of internal VM tests.") \ 2010 "Enable execution of internal VM tests") \
1994 \ 2011 \
1995 notproduct(bool, VerboseInternalVMTests, false, \ 2012 notproduct(bool, VerboseInternalVMTests, false, \
1996 "Turn on logging for internal VM tests.") \ 2013 "Turn on logging for internal VM tests.") \
1997 \ 2014 \
1998 product_pd(bool, UseTLAB, "Use thread-local object allocation") \ 2015 product_pd(bool, UseTLAB, "Use thread-local object allocation") \
1999 \ 2016 \
2000 product_pd(bool, ResizeTLAB, \ 2017 product_pd(bool, ResizeTLAB, \
2001 "Dynamically resize tlab size for threads") \ 2018 "Dynamically resize TLAB size for threads") \
2002 \ 2019 \
2003 product(bool, ZeroTLAB, false, \ 2020 product(bool, ZeroTLAB, false, \
2004 "Zero out the newly created TLAB") \ 2021 "Zero out the newly created TLAB") \
2005 \ 2022 \
2006 product(bool, FastTLABRefill, true, \ 2023 product(bool, FastTLABRefill, true, \
2008 \ 2025 \
2009 product(bool, PrintTLAB, false, \ 2026 product(bool, PrintTLAB, false, \
2010 "Print various TLAB related information") \ 2027 "Print various TLAB related information") \
2011 \ 2028 \
2012 product(bool, TLABStats, true, \ 2029 product(bool, TLABStats, true, \
2013 "Print various TLAB related information") \ 2030 "Provide more detailed and expensive TLAB statistics " \
2031 "(with PrintTLAB)") \
2014 \ 2032 \
2015 EMBEDDED_ONLY(product(bool, LowMemoryProtection, true, \ 2033 EMBEDDED_ONLY(product(bool, LowMemoryProtection, true, \
2016 "Enable LowMemoryProtection")) \ 2034 "Enable LowMemoryProtection")) \
2017 \ 2035 \
2018 product_pd(bool, NeverActAsServerClassMachine, \ 2036 product_pd(bool, NeverActAsServerClassMachine, \
2042 \ 2060 \
2043 product(uintx, InitialRAMFraction, 64, \ 2061 product(uintx, InitialRAMFraction, 64, \
2044 "Fraction (1/n) of real memory used for initial heap size") \ 2062 "Fraction (1/n) of real memory used for initial heap size") \
2045 \ 2063 \
2046 develop(uintx, MaxVirtMemFraction, 2, \ 2064 develop(uintx, MaxVirtMemFraction, 2, \
2047 "Maximum fraction (1/n) of virtual memory used for ergonomically" \ 2065 "Maximum fraction (1/n) of virtual memory used for ergonomically "\
2048 "determining maximum heap size") \ 2066 "determining maximum heap size") \
2049 \ 2067 \
2050 product(bool, UseAutoGCSelectPolicy, false, \ 2068 product(bool, UseAutoGCSelectPolicy, false, \
2051 "Use automatic collection selection policy") \ 2069 "Use automatic collection selection policy") \
2052 \ 2070 \
2053 product(uintx, AutoGCSelectPauseMillis, 5000, \ 2071 product(uintx, AutoGCSelectPauseMillis, 5000, \
2054 "Automatic GC selection pause threshhold in ms") \ 2072 "Automatic GC selection pause threshold in milliseconds") \
2055 \ 2073 \
2056 product(bool, UseAdaptiveSizePolicy, true, \ 2074 product(bool, UseAdaptiveSizePolicy, true, \
2057 "Use adaptive generation sizing policies") \ 2075 "Use adaptive generation sizing policies") \
2058 \ 2076 \
2059 product(bool, UsePSAdaptiveSurvivorSizePolicy, true, \ 2077 product(bool, UsePSAdaptiveSurvivorSizePolicy, true, \
2064 \ 2082 \
2065 product(bool, UseAdaptiveGenerationSizePolicyAtMajorCollection, true, \ 2083 product(bool, UseAdaptiveGenerationSizePolicyAtMajorCollection, true, \
2066 "Use adaptive young-old sizing policies at major collections") \ 2084 "Use adaptive young-old sizing policies at major collections") \
2067 \ 2085 \
2068 product(bool, UseAdaptiveSizePolicyWithSystemGC, false, \ 2086 product(bool, UseAdaptiveSizePolicyWithSystemGC, false, \
2069 "Use statistics from System.GC for adaptive size policy") \ 2087 "Include statistics from System.gc() for adaptive size policy") \
2070 \ 2088 \
2071 product(bool, UseAdaptiveGCBoundary, false, \ 2089 product(bool, UseAdaptiveGCBoundary, false, \
2072 "Allow young-old boundary to move") \ 2090 "Allow young-old boundary to move") \
2073 \ 2091 \
2074 develop(bool, TraceAdaptiveGCBoundary, false, \ 2092 develop(bool, TraceAdaptiveGCBoundary, false, \
2076 \ 2094 \
2077 develop(intx, PSAdaptiveSizePolicyResizeVirtualSpaceAlot, -1, \ 2095 develop(intx, PSAdaptiveSizePolicyResizeVirtualSpaceAlot, -1, \
2078 "Resize the virtual spaces of the young or old generations") \ 2096 "Resize the virtual spaces of the young or old generations") \
2079 \ 2097 \
2080 product(uintx, AdaptiveSizeThroughPutPolicy, 0, \ 2098 product(uintx, AdaptiveSizeThroughPutPolicy, 0, \
2081 "Policy for changeing generation size for throughput goals") \ 2099 "Policy for changing generation size for throughput goals") \
2082 \ 2100 \
2083 product(uintx, AdaptiveSizePausePolicy, 0, \ 2101 product(uintx, AdaptiveSizePausePolicy, 0, \
2084 "Policy for changing generation size for pause goals") \ 2102 "Policy for changing generation size for pause goals") \
2085 \ 2103 \
2086 develop(bool, PSAdjustTenuredGenForMinorPause, false, \ 2104 develop(bool, PSAdjustTenuredGenForMinorPause, false, \
2087 "Adjust tenured generation to achive a minor pause goal") \ 2105 "Adjust tenured generation to achieve a minor pause goal") \
2088 \ 2106 \
2089 develop(bool, PSAdjustYoungGenForMajorPause, false, \ 2107 develop(bool, PSAdjustYoungGenForMajorPause, false, \
2090 "Adjust young generation to achive a major pause goal") \ 2108 "Adjust young generation to achieve a major pause goal") \
2091 \ 2109 \
2092 product(uintx, AdaptiveSizePolicyInitializingSteps, 20, \ 2110 product(uintx, AdaptiveSizePolicyInitializingSteps, 20, \
2093 "Number of steps where heuristics is used before data is used") \ 2111 "Number of steps where heuristics is used before data is used") \
2094 \ 2112 \
2095 develop(uintx, AdaptiveSizePolicyReadyThreshold, 5, \ 2113 develop(uintx, AdaptiveSizePolicyReadyThreshold, 5, \
2140 \ 2158 \
2141 product(uintx, TenuredGenerationSizeSupplementDecay, 2, \ 2159 product(uintx, TenuredGenerationSizeSupplementDecay, 2, \
2142 "Decay factor to TenuredGenerationSizeIncrement") \ 2160 "Decay factor to TenuredGenerationSizeIncrement") \
2143 \ 2161 \
2144 product(uintx, MaxGCPauseMillis, max_uintx, \ 2162 product(uintx, MaxGCPauseMillis, max_uintx, \
2145 "Adaptive size policy maximum GC pause time goal in msec, " \ 2163 "Adaptive size policy maximum GC pause time goal in millisecond, "\
2146 "or (G1 Only) the max. GC time per MMU time slice") \ 2164 "or (G1 Only) the maximum GC time per MMU time slice") \
2147 \ 2165 \
2148 product(uintx, GCPauseIntervalMillis, 0, \ 2166 product(uintx, GCPauseIntervalMillis, 0, \
2149 "Time slice for MMU specification") \ 2167 "Time slice for MMU specification") \
2150 \ 2168 \
2151 product(uintx, MaxGCMinorPauseMillis, max_uintx, \ 2169 product(uintx, MaxGCMinorPauseMillis, max_uintx, \
2152 "Adaptive size policy maximum GC minor pause time goal in msec") \ 2170 "Adaptive size policy maximum GC minor pause time goal " \
2171 "in millisecond") \
2153 \ 2172 \
2154 product(uintx, GCTimeRatio, 99, \ 2173 product(uintx, GCTimeRatio, 99, \
2155 "Adaptive size policy application time to GC time ratio") \ 2174 "Adaptive size policy application time to GC time ratio") \
2156 \ 2175 \
2157 product(uintx, AdaptiveSizeDecrementScaleFactor, 4, \ 2176 product(uintx, AdaptiveSizeDecrementScaleFactor, 4, \
2165 \ 2184 \
2166 product(uintx, MinSurvivorRatio, 3, \ 2185 product(uintx, MinSurvivorRatio, 3, \
2167 "Minimum ratio of young generation/survivor space size") \ 2186 "Minimum ratio of young generation/survivor space size") \
2168 \ 2187 \
2169 product(uintx, InitialSurvivorRatio, 8, \ 2188 product(uintx, InitialSurvivorRatio, 8, \
2170 "Initial ratio of eden/survivor space size") \ 2189 "Initial ratio of young generation/survivor space size") \
2171 \ 2190 \
2172 product(uintx, BaseFootPrintEstimate, 256*M, \ 2191 product(uintx, BaseFootPrintEstimate, 256*M, \
2173 "Estimate of footprint other than Java Heap") \ 2192 "Estimate of footprint other than Java Heap") \
2174 \ 2193 \
2175 product(bool, UseGCOverheadLimit, true, \ 2194 product(bool, UseGCOverheadLimit, true, \
2176 "Use policy to limit of proportion of time spent in GC " \ 2195 "Use policy to limit of proportion of time spent in GC " \
2177 "before an OutOfMemory error is thrown") \ 2196 "before an OutOfMemory error is thrown") \
2178 \ 2197 \
2179 product(uintx, GCTimeLimit, 98, \ 2198 product(uintx, GCTimeLimit, 98, \
2180 "Limit of proportion of time spent in GC before an OutOfMemory" \ 2199 "Limit of the proportion of time spent in GC before " \
2181 "error is thrown (used with GCHeapFreeLimit)") \ 2200 "an OutOfMemoryError is thrown (used with GCHeapFreeLimit)") \
2182 \ 2201 \
2183 product(uintx, GCHeapFreeLimit, 2, \ 2202 product(uintx, GCHeapFreeLimit, 2, \
2184 "Minimum percentage of free space after a full GC before an " \ 2203 "Minimum percentage of free space after a full GC before an " \
2185 "OutOfMemoryError is thrown (used with GCTimeLimit)") \ 2204 "OutOfMemoryError is thrown (used with GCTimeLimit)") \
2186 \ 2205 \
2198 \ 2217 \
2199 product(intx, PrefetchFieldsAhead, -1, \ 2218 product(intx, PrefetchFieldsAhead, -1, \
2200 "How many fields ahead to prefetch in oop scan (<= 0 means off)") \ 2219 "How many fields ahead to prefetch in oop scan (<= 0 means off)") \
2201 \ 2220 \
2202 diagnostic(bool, VerifySilently, false, \ 2221 diagnostic(bool, VerifySilently, false, \
2203 "Don't print print the verification progress") \ 2222 "Do not print the verification progress") \
2204 \ 2223 \
2205 diagnostic(bool, VerifyDuringStartup, false, \ 2224 diagnostic(bool, VerifyDuringStartup, false, \
2206 "Verify memory system before executing any Java code " \ 2225 "Verify memory system before executing any Java code " \
2207 "during VM initialization") \ 2226 "during VM initialization") \
2208 \ 2227 \
2221 diagnostic(bool, GCParallelVerificationEnabled, true, \ 2240 diagnostic(bool, GCParallelVerificationEnabled, true, \
2222 "Enable parallel memory system verification") \ 2241 "Enable parallel memory system verification") \
2223 \ 2242 \
2224 diagnostic(bool, DeferInitialCardMark, false, \ 2243 diagnostic(bool, DeferInitialCardMark, false, \
2225 "When +ReduceInitialCardMarks, explicitly defer any that " \ 2244 "When +ReduceInitialCardMarks, explicitly defer any that " \
2226 "may arise from new_pre_store_barrier") \ 2245 "may arise from new_pre_store_barrier") \
2227 \ 2246 \
2228 diagnostic(bool, VerifyRememberedSets, false, \ 2247 diagnostic(bool, VerifyRememberedSets, false, \
2229 "Verify GC remembered sets") \ 2248 "Verify GC remembered sets") \
2230 \ 2249 \
2231 diagnostic(bool, VerifyObjectStartArray, true, \ 2250 diagnostic(bool, VerifyObjectStartArray, true, \
2232 "Verify GC object start array if verify before/after") \ 2251 "Verify GC object start array if verify before/after") \
2233 \ 2252 \
2234 product(bool, DisableExplicitGC, false, \ 2253 product(bool, DisableExplicitGC, false, \
2235 "Tells whether calling System.gc() does a full GC") \ 2254 "Ignore calls to System.gc()") \
2236 \ 2255 \
2237 notproduct(bool, CheckMemoryInitialization, false, \ 2256 notproduct(bool, CheckMemoryInitialization, false, \
2238 "Checks memory initialization") \ 2257 "Check memory initialization") \
2239 \ 2258 \
2240 product(bool, CollectGen0First, false, \ 2259 product(bool, CollectGen0First, false, \
2241 "Collect youngest generation before each full GC") \ 2260 "Collect youngest generation before each full GC") \
2242 \ 2261 \
2243 diagnostic(bool, BindCMSThreadToCPU, false, \ 2262 diagnostic(bool, BindCMSThreadToCPU, false, \
2254 \ 2273 \
2255 product(uintx, ProcessDistributionStride, 4, \ 2274 product(uintx, ProcessDistributionStride, 4, \
2256 "Stride through processors when distributing processes") \ 2275 "Stride through processors when distributing processes") \
2257 \ 2276 \
2258 product(uintx, CMSCoordinatorYieldSleepCount, 10, \ 2277 product(uintx, CMSCoordinatorYieldSleepCount, 10, \
2259 "number of times the coordinator GC thread will sleep while " \ 2278 "Number of times the coordinator GC thread will sleep while " \
2260 "yielding before giving up and resuming GC") \ 2279 "yielding before giving up and resuming GC") \
2261 \ 2280 \
2262 product(uintx, CMSYieldSleepCount, 0, \ 2281 product(uintx, CMSYieldSleepCount, 0, \
2263 "number of times a GC thread (minus the coordinator) " \ 2282 "Number of times a GC thread (minus the coordinator) " \
2264 "will sleep while yielding before giving up and resuming GC") \ 2283 "will sleep while yielding before giving up and resuming GC") \
2265 \ 2284 \
2266 /* gc tracing */ \ 2285 /* gc tracing */ \
2267 manageable(bool, PrintGC, false, \ 2286 manageable(bool, PrintGC, false, \
2268 "Print message at garbage collect") \ 2287 "Print message at garbage collection") \
2269 \ 2288 \
2270 manageable(bool, PrintGCDetails, false, \ 2289 manageable(bool, PrintGCDetails, false, \
2271 "Print more details at garbage collect") \ 2290 "Print more details at garbage collection") \
2272 \ 2291 \
2273 manageable(bool, PrintGCDateStamps, false, \ 2292 manageable(bool, PrintGCDateStamps, false, \
2274 "Print date stamps at garbage collect") \ 2293 "Print date stamps at garbage collection") \
2275 \ 2294 \
2276 manageable(bool, PrintGCTimeStamps, false, \ 2295 manageable(bool, PrintGCTimeStamps, false, \
2277 "Print timestamps at garbage collect") \ 2296 "Print timestamps at garbage collection") \
2278 \ 2297 \
2279 product(bool, PrintGCTaskTimeStamps, false, \ 2298 product(bool, PrintGCTaskTimeStamps, false, \
2280 "Print timestamps for individual gc worker thread tasks") \ 2299 "Print timestamps for individual gc worker thread tasks") \
2281 \ 2300 \
2282 develop(intx, ConcGCYieldTimeout, 0, \ 2301 develop(intx, ConcGCYieldTimeout, 0, \
2283 "If non-zero, assert that GC threads yield within this # of ms.") \ 2302 "If non-zero, assert that GC threads yield within this " \
2303 "number of milliseconds") \
2284 \ 2304 \
2285 notproduct(bool, TraceMarkSweep, false, \ 2305 notproduct(bool, TraceMarkSweep, false, \
2286 "Trace mark sweep") \ 2306 "Trace mark sweep") \
2287 \ 2307 \
2288 product(bool, PrintReferenceGC, false, \ 2308 product(bool, PrintReferenceGC, false, \
2289 "Print times spent handling reference objects during GC " \ 2309 "Print times spent handling reference objects during GC " \
2290 " (enabled only when PrintGCDetails)") \ 2310 "(enabled only when PrintGCDetails)") \
2291 \ 2311 \
2292 develop(bool, TraceReferenceGC, false, \ 2312 develop(bool, TraceReferenceGC, false, \
2293 "Trace handling of soft/weak/final/phantom references") \ 2313 "Trace handling of soft/weak/final/phantom references") \
2294 \ 2314 \
2295 develop(bool, TraceFinalizerRegistration, false, \ 2315 develop(bool, TraceFinalizerRegistration, false, \
2296 "Trace registration of final references") \ 2316 "Trace registration of final references") \
2297 \ 2317 \
2298 notproduct(bool, TraceScavenge, false, \ 2318 notproduct(bool, TraceScavenge, false, \
2299 "Trace scavenge") \ 2319 "Trace scavenge") \
2300 \ 2320 \
2301 product_rw(bool, TraceClassLoading, false, \ 2321 product_rw(bool, TraceClassLoading, false, \
2328 \ 2348 \
2329 product_rw(bool, PrintHeapAtGC, false, \ 2349 product_rw(bool, PrintHeapAtGC, false, \
2330 "Print heap layout before and after each GC") \ 2350 "Print heap layout before and after each GC") \
2331 \ 2351 \
2332 product_rw(bool, PrintHeapAtGCExtended, false, \ 2352 product_rw(bool, PrintHeapAtGCExtended, false, \
2333 "Prints extended information about the layout of the heap " \ 2353 "Print extended information about the layout of the heap " \
2334 "when -XX:+PrintHeapAtGC is set") \ 2354 "when -XX:+PrintHeapAtGC is set") \
2335 \ 2355 \
2336 product(bool, PrintHeapAtSIGBREAK, true, \ 2356 product(bool, PrintHeapAtSIGBREAK, true, \
2337 "Print heap layout in response to SIGBREAK") \ 2357 "Print heap layout in response to SIGBREAK") \
2338 \ 2358 \
2365 \ 2385 \
2366 diagnostic(bool, TraceGCTaskThread, false, \ 2386 diagnostic(bool, TraceGCTaskThread, false, \
2367 "Trace actions of the GC task threads") \ 2387 "Trace actions of the GC task threads") \
2368 \ 2388 \
2369 product(bool, PrintParallelOldGCPhaseTimes, false, \ 2389 product(bool, PrintParallelOldGCPhaseTimes, false, \
2370 "Print the time taken by each parallel old gc phase." \ 2390 "Print the time taken by each phase in ParallelOldGC " \
2371 "PrintGCDetails must also be enabled.") \ 2391 "(PrintGCDetails must also be enabled)") \
2372 \ 2392 \
2373 develop(bool, TraceParallelOldGCMarkingPhase, false, \ 2393 develop(bool, TraceParallelOldGCMarkingPhase, false, \
2374 "Trace parallel old gc marking phase") \ 2394 "Trace marking phase in ParallelOldGC") \
2375 \ 2395 \
2376 develop(bool, TraceParallelOldGCSummaryPhase, false, \ 2396 develop(bool, TraceParallelOldGCSummaryPhase, false, \
2377 "Trace parallel old gc summary phase") \ 2397 "Trace summary phase in ParallelOldGC") \
2378 \ 2398 \
2379 develop(bool, TraceParallelOldGCCompactionPhase, false, \ 2399 develop(bool, TraceParallelOldGCCompactionPhase, false, \
2380 "Trace parallel old gc compaction phase") \ 2400 "Trace compaction phase in ParallelOldGC") \
2381 \ 2401 \
2382 develop(bool, TraceParallelOldGCDensePrefix, false, \ 2402 develop(bool, TraceParallelOldGCDensePrefix, false, \
2383 "Trace parallel old gc dense prefix computation") \ 2403 "Trace dense prefix computation for ParallelOldGC") \
2384 \ 2404 \
2385 develop(bool, IgnoreLibthreadGPFault, false, \ 2405 develop(bool, IgnoreLibthreadGPFault, false, \
2386 "Suppress workaround for libthread GP fault") \ 2406 "Suppress workaround for libthread GP fault") \
2387 \ 2407 \
2388 product(bool, PrintJNIGCStalls, false, \ 2408 product(bool, PrintJNIGCStalls, false, \
2389 "Print diagnostic message when GC is stalled" \ 2409 "Print diagnostic message when GC is stalled " \
2390 "by JNI critical section") \ 2410 "by JNI critical section") \
2391 \ 2411 \
2392 experimental(double, ObjectCountCutOffPercent, 0.5, \ 2412 experimental(double, ObjectCountCutOffPercent, 0.5, \
2393 "The percentage of the used heap that the instances of a class " \ 2413 "The percentage of the used heap that the instances of a class " \
2394 "must occupy for the class to generate a trace event.") \ 2414 "must occupy for the class to generate a trace event") \
2395 \ 2415 \
2396 /* GC log rotation setting */ \ 2416 /* GC log rotation setting */ \
2397 \ 2417 \
2398 product(bool, UseGCLogFileRotation, false, \ 2418 product(bool, UseGCLogFileRotation, false, \
2399 "Prevent large gclog file for long running app. " \ 2419 "Rotate gclog files (for long running applications). It requires "\
2400 "Requires -Xloggc:<filename>") \ 2420 "-Xloggc:<filename>") \
2401 \ 2421 \
2402 product(uintx, NumberOfGCLogFiles, 0, \ 2422 product(uintx, NumberOfGCLogFiles, 0, \
2403 "Number of gclog files in rotation, " \ 2423 "Number of gclog files in rotation " \
2404 "Default: 0, no rotation") \ 2424 "(default: 0, no rotation)") \
2405 \ 2425 \
2406 product(uintx, GCLogFileSize, 0, \ 2426 product(uintx, GCLogFileSize, 0, \
2407 "GC log file size, Default: 0 bytes, no rotation " \ 2427 "GC log file size (default: 0 bytes, no rotation). " \
2408 "Only valid with UseGCLogFileRotation") \ 2428 "It requires UseGCLogFileRotation") \
2409 \ 2429 \
2410 /* JVMTI heap profiling */ \ 2430 /* JVMTI heap profiling */ \
2411 \ 2431 \
2412 diagnostic(bool, TraceJVMTIObjectTagging, false, \ 2432 diagnostic(bool, TraceJVMTIObjectTagging, false, \
2413 "Trace JVMTI object tagging calls") \ 2433 "Trace JVMTI object tagging calls") \
2480 \ 2500 \
2481 develop(bool, GenerateRangeChecks, true, \ 2501 develop(bool, GenerateRangeChecks, true, \
2482 "Generate range checks for array accesses") \ 2502 "Generate range checks for array accesses") \
2483 \ 2503 \
2484 develop_pd(bool, ImplicitNullChecks, \ 2504 develop_pd(bool, ImplicitNullChecks, \
2485 "generate code for implicit null checks") \ 2505 "Generate code for implicit null checks") \
2486 \ 2506 \
2487 product(bool, PrintSafepointStatistics, false, \ 2507 product(bool, PrintSafepointStatistics, false, \
2488 "print statistics about safepoint synchronization") \ 2508 "Print statistics about safepoint synchronization") \
2489 \ 2509 \
2490 product(intx, PrintSafepointStatisticsCount, 300, \ 2510 product(intx, PrintSafepointStatisticsCount, 300, \
2491 "total number of safepoint statistics collected " \ 2511 "Total number of safepoint statistics collected " \
2492 "before printing them out") \ 2512 "before printing them out") \
2493 \ 2513 \
2494 product(intx, PrintSafepointStatisticsTimeout, -1, \ 2514 product(intx, PrintSafepointStatisticsTimeout, -1, \
2495 "print safepoint statistics only when safepoint takes" \ 2515 "Print safepoint statistics only when safepoint takes " \
2496 " more than PrintSafepointSatisticsTimeout in millis") \ 2516 "more than PrintSafepointSatisticsTimeout in millis") \
2497 \ 2517 \
2498 product(bool, TraceSafepointCleanupTime, false, \ 2518 product(bool, TraceSafepointCleanupTime, false, \
2499 "print the break down of clean up tasks performed during" \ 2519 "Print the break down of clean up tasks performed during " \
2500 " safepoint") \ 2520 "safepoint") \
2501 \ 2521 \
2502 product(bool, Inline, true, \ 2522 product(bool, Inline, true, \
2503 "enable inlining") \ 2523 "Enable inlining") \
2504 \ 2524 \
2505 product(bool, ClipInlining, true, \ 2525 product(bool, ClipInlining, true, \
2506 "clip inlining if aggregate method exceeds DesiredMethodLimit") \ 2526 "Clip inlining if aggregate method exceeds DesiredMethodLimit") \
2507 \ 2527 \
2508 develop(bool, UseCHA, true, \ 2528 develop(bool, UseCHA, true, \
2509 "enable CHA") \ 2529 "Enable CHA") \
2510 \ 2530 \
2511 product(bool, UseTypeProfile, true, \ 2531 product(bool, UseTypeProfile, true, \
2512 "Check interpreter profile for historically monomorphic calls") \ 2532 "Check interpreter profile for historically monomorphic calls") \
2513 \ 2533 \
2514 notproduct(bool, TimeCompiler, false, \ 2534 notproduct(bool, TimeCompiler, false, \
2515 "time the compiler") \ 2535 "Time the compiler") \
2516 \ 2536 \
2517 diagnostic(bool, PrintInlining, false, \ 2537 diagnostic(bool, PrintInlining, false, \
2518 "prints inlining optimizations") \ 2538 "Print inlining optimizations") \
2519 \ 2539 \
2520 product(bool, UsePopCountInstruction, false, \ 2540 product(bool, UsePopCountInstruction, false, \
2521 "Use population count instruction") \ 2541 "Use population count instruction") \
2522 \ 2542 \
2523 develop(bool, EagerInitialization, false, \ 2543 develop(bool, EagerInitialization, false, \
2525 \ 2545 \
2526 develop(bool, TraceMethodReplacement, false, \ 2546 develop(bool, TraceMethodReplacement, false, \
2527 "Print when methods are replaced do to recompilation") \ 2547 "Print when methods are replaced do to recompilation") \
2528 \ 2548 \
2529 develop(bool, PrintMethodFlushing, false, \ 2549 develop(bool, PrintMethodFlushing, false, \
2530 "print the nmethods being flushed") \ 2550 "Print the nmethods being flushed") \
2531 \ 2551 \
2532 develop(bool, UseRelocIndex, false, \ 2552 develop(bool, UseRelocIndex, false, \
2533 "use an index to speed random access to relocations") \ 2553 "Use an index to speed random access to relocations") \
2534 \ 2554 \
2535 develop(bool, StressCodeBuffers, false, \ 2555 develop(bool, StressCodeBuffers, false, \
2536 "Exercise code buffer expansion and other rare state changes") \ 2556 "Exercise code buffer expansion and other rare state changes") \
2537 \ 2557 \
2538 diagnostic(bool, DebugNonSafepoints, trueInDebug, \ 2558 diagnostic(bool, DebugNonSafepoints, trueInDebug, \
2539 "Generate extra debugging info for non-safepoints in nmethods") \ 2559 "Generate extra debugging information for non-safepoints in " \
2560 "nmethods") \
2540 \ 2561 \
2541 product(bool, PrintVMOptions, false, \ 2562 product(bool, PrintVMOptions, false, \
2542 "Print flags that appeared on the command line") \ 2563 "Print flags that appeared on the command line") \
2543 \ 2564 \
2544 product(bool, IgnoreUnrecognizedVMOptions, false, \ 2565 product(bool, IgnoreUnrecognizedVMOptions, false, \
2545 "Ignore unrecognized VM options") \ 2566 "Ignore unrecognized VM options") \
2546 \ 2567 \
2547 product(bool, PrintCommandLineFlags, false, \ 2568 product(bool, PrintCommandLineFlags, false, \
2548 "Print flags specified on command line or set by ergonomics") \ 2569 "Print flags specified on command line or set by ergonomics") \
2549 \ 2570 \
2550 product(bool, PrintFlagsInitial, false, \ 2571 product(bool, PrintFlagsInitial, false, \
2551 "Print all VM flags before argument processing and exit VM") \ 2572 "Print all VM flags before argument processing and exit VM") \
2552 \ 2573 \
2553 product(bool, PrintFlagsFinal, false, \ 2574 product(bool, PrintFlagsFinal, false, \
2554 "Print all VM flags after argument and ergonomic processing") \ 2575 "Print all VM flags after argument and ergonomic processing") \
2555 \ 2576 \
2556 notproduct(bool, PrintFlagsWithComments, false, \ 2577 notproduct(bool, PrintFlagsWithComments, false, \
2557 "Print all VM flags with default values and descriptions and exit")\ 2578 "Print all VM flags with default values and descriptions and " \
2579 "exit") \
2558 \ 2580 \
2559 diagnostic(bool, SerializeVMOutput, true, \ 2581 diagnostic(bool, SerializeVMOutput, true, \
2560 "Use a mutex to serialize output to tty and LogFile") \ 2582 "Use a mutex to serialize output to tty and LogFile") \
2561 \ 2583 \
2562 diagnostic(bool, DisplayVMOutput, true, \ 2584 diagnostic(bool, DisplayVMOutput, true, \
2563 "Display all VM output on the tty, independently of LogVMOutput") \ 2585 "Display all VM output on the tty, independently of LogVMOutput") \
2564 \ 2586 \
2565 diagnostic(bool, LogVMOutput, false, \ 2587 diagnostic(bool, LogVMOutput, false, \
2566 "Save VM output to LogFile") \ 2588 "Save VM output to LogFile") \
2567 \ 2589 \
2568 diagnostic(ccstr, LogFile, NULL, \ 2590 diagnostic(ccstr, LogFile, NULL, \
2569 "If LogVMOutput or LogCompilation is on, save VM output to " \ 2591 "If LogVMOutput or LogCompilation is on, save VM output to " \
2570 "this file [default: ./hotspot_pid%p.log] (%p replaced with pid)") \ 2592 "this file [default: ./hotspot_pid%p.log] (%p replaced with pid)")\
2571 \ 2593 \
2572 product(ccstr, ErrorFile, NULL, \ 2594 product(ccstr, ErrorFile, NULL, \
2573 "If an error occurs, save the error data to this file " \ 2595 "If an error occurs, save the error data to this file " \
2574 "[default: ./hs_err_pid%p.log] (%p replaced with pid)") \ 2596 "[default: ./hs_err_pid%p.log] (%p replaced with pid)") \
2575 \ 2597 \
2576 product(bool, DisplayVMOutputToStderr, false, \ 2598 product(bool, DisplayVMOutputToStderr, false, \
2577 "If DisplayVMOutput is true, display all VM output to stderr") \ 2599 "If DisplayVMOutput is true, display all VM output to stderr") \
2578 \ 2600 \
2579 product(bool, DisplayVMOutputToStdout, false, \ 2601 product(bool, DisplayVMOutputToStdout, false, \
2580 "If DisplayVMOutput is true, display all VM output to stdout") \ 2602 "If DisplayVMOutput is true, display all VM output to stdout") \
2581 \ 2603 \
2582 product(bool, UseHeavyMonitors, false, \ 2604 product(bool, UseHeavyMonitors, false, \
2583 "use heavyweight instead of lightweight Java monitors") \ 2605 "use heavyweight instead of lightweight Java monitors") \
2584 \ 2606 \
2585 product(bool, PrintStringTableStatistics, false, \ 2607 product(bool, PrintStringTableStatistics, false, \
2599 "Call fatal if this exception is thrown. Example: " \ 2621 "Call fatal if this exception is thrown. Example: " \
2600 "java -XX:AbortVMOnException=java.lang.NullPointerException Foo") \ 2622 "java -XX:AbortVMOnException=java.lang.NullPointerException Foo") \
2601 \ 2623 \
2602 notproduct(ccstr, AbortVMOnExceptionMessage, NULL, \ 2624 notproduct(ccstr, AbortVMOnExceptionMessage, NULL, \
2603 "Call fatal if the exception pointed by AbortVMOnException " \ 2625 "Call fatal if the exception pointed by AbortVMOnException " \
2604 "has this message.") \ 2626 "has this message") \
2605 \ 2627 \
2606 develop(bool, DebugVtables, false, \ 2628 develop(bool, DebugVtables, false, \
2607 "add debugging code to vtable dispatch") \ 2629 "add debugging code to vtable dispatch") \
2608 \ 2630 \
2609 develop(bool, PrintVtables, false, \ 2631 develop(bool, PrintVtables, false, \
2664 "Inline allocations larger than this in doublewords must go slow")\ 2686 "Inline allocations larger than this in doublewords must go slow")\
2665 \ 2687 \
2666 product(bool, AggressiveOpts, false, \ 2688 product(bool, AggressiveOpts, false, \
2667 "Enable aggressive optimizations - see arguments.cpp") \ 2689 "Enable aggressive optimizations - see arguments.cpp") \
2668 \ 2690 \
2691 product_pd(uintx, TypeProfileLevel, \
2692 "=XYZ, with Z: Type profiling of arguments at call; " \
2693 "Y: Type profiling of return value at call; " \
2694 "X: Type profiling of parameters to methods; " \
2695 "X, Y and Z in 0=off ; 1=jsr292 only; 2=all methods") \
2696 \
2697 product(intx, TypeProfileArgsLimit, 2, \
2698 "max number of call arguments to consider for type profiling") \
2699 \
2700 product(intx, TypeProfileParmsLimit, 2, \
2701 "max number of incoming parameters to consider for type profiling"\
2702 ", -1 for all") \
2703 \
2669 /* statistics */ \ 2704 /* statistics */ \
2670 develop(bool, CountCompiledCalls, false, \ 2705 develop(bool, CountCompiledCalls, false, \
2671 "counts method invocations") \ 2706 "Count method invocations") \
2672 \ 2707 \
2673 notproduct(bool, CountRuntimeCalls, false, \ 2708 notproduct(bool, CountRuntimeCalls, false, \
2674 "counts VM runtime calls") \ 2709 "Count VM runtime calls") \
2675 \ 2710 \
2676 develop(bool, CountJNICalls, false, \ 2711 develop(bool, CountJNICalls, false, \
2677 "counts jni method invocations") \ 2712 "Count jni method invocations") \
2678 \ 2713 \
2679 notproduct(bool, CountJVMCalls, false, \ 2714 notproduct(bool, CountJVMCalls, false, \
2680 "counts jvm method invocations") \ 2715 "Count jvm method invocations") \
2681 \ 2716 \
2682 notproduct(bool, CountRemovableExceptions, false, \ 2717 notproduct(bool, CountRemovableExceptions, false, \
2683 "count exceptions that could be replaced by branches due to " \ 2718 "Count exceptions that could be replaced by branches due to " \
2684 "inlining") \ 2719 "inlining") \
2685 \ 2720 \
2686 notproduct(bool, ICMissHistogram, false, \ 2721 notproduct(bool, ICMissHistogram, false, \
2687 "produce histogram of IC misses") \ 2722 "Produce histogram of IC misses") \
2688 \ 2723 \
2689 notproduct(bool, PrintClassStatistics, false, \ 2724 notproduct(bool, PrintClassStatistics, false, \
2690 "prints class statistics at end of run") \ 2725 "Print class statistics at end of run") \
2691 \ 2726 \
2692 notproduct(bool, PrintMethodStatistics, false, \ 2727 notproduct(bool, PrintMethodStatistics, false, \
2693 "prints method statistics at end of run") \ 2728 "Print method statistics at end of run") \
2694 \ 2729 \
2695 /* interpreter */ \ 2730 /* interpreter */ \
2696 develop(bool, ClearInterpreterLocals, false, \ 2731 develop(bool, ClearInterpreterLocals, false, \
2697 "Always clear local variables of interpreter activations upon " \ 2732 "Always clear local variables of interpreter activations upon " \
2698 "entry") \ 2733 "entry") \
2702 \ 2737 \
2703 product_pd(bool, RewriteFrequentPairs, \ 2738 product_pd(bool, RewriteFrequentPairs, \
2704 "Rewrite frequently used bytecode pairs into a single bytecode") \ 2739 "Rewrite frequently used bytecode pairs into a single bytecode") \
2705 \ 2740 \
2706 diagnostic(bool, PrintInterpreter, false, \ 2741 diagnostic(bool, PrintInterpreter, false, \
2707 "Prints the generated interpreter code") \ 2742 "Print the generated interpreter code") \
2708 \ 2743 \
2709 product(bool, UseInterpreter, true, \ 2744 product(bool, UseInterpreter, true, \
2710 "Use interpreter for non-compiled methods") \ 2745 "Use interpreter for non-compiled methods") \
2711 \ 2746 \
2712 develop(bool, UseFastSignatureHandlers, true, \ 2747 develop(bool, UseFastSignatureHandlers, true, \
2720 \ 2755 \
2721 product(bool, UseFastAccessorMethods, true, \ 2756 product(bool, UseFastAccessorMethods, true, \
2722 "Use fast method entry code for accessor methods") \ 2757 "Use fast method entry code for accessor methods") \
2723 \ 2758 \
2724 product_pd(bool, UseOnStackReplacement, \ 2759 product_pd(bool, UseOnStackReplacement, \
2725 "Use on stack replacement, calls runtime if invoc. counter " \ 2760 "Use on stack replacement, calls runtime if invoc. counter " \
2726 "overflows in loop") \ 2761 "overflows in loop") \
2727 \ 2762 \
2728 notproduct(bool, TraceOnStackReplacement, false, \ 2763 notproduct(bool, TraceOnStackReplacement, false, \
2729 "Trace on stack replacement") \ 2764 "Trace on stack replacement") \
2730 \ 2765 \
2731 product_pd(bool, PreferInterpreterNativeStubs, \ 2766 product_pd(bool, PreferInterpreterNativeStubs, \
2769 \ 2804 \
2770 develop(bool, TraceFrequencyInlining, false, \ 2805 develop(bool, TraceFrequencyInlining, false, \
2771 "Trace frequency based inlining") \ 2806 "Trace frequency based inlining") \
2772 \ 2807 \
2773 develop_pd(bool, InlineIntrinsics, \ 2808 develop_pd(bool, InlineIntrinsics, \
2774 "Inline intrinsics that can be statically resolved") \ 2809 "Inline intrinsics that can be statically resolved") \
2775 \ 2810 \
2776 product_pd(bool, ProfileInterpreter, \ 2811 product_pd(bool, ProfileInterpreter, \
2777 "Profile at the bytecode level during interpretation") \ 2812 "Profile at the bytecode level during interpretation") \
2778 \ 2813 \
2779 develop_pd(bool, ProfileTraps, \ 2814 develop_pd(bool, ProfileTraps, \
2780 "Profile deoptimization traps at the bytecode level") \ 2815 "Profile deoptimization traps at the bytecode level") \
2781 \ 2816 \
2782 product(intx, ProfileMaturityPercentage, 20, \ 2817 product(intx, ProfileMaturityPercentage, 20, \
2783 "number of method invocations/branches (expressed as % of " \ 2818 "number of method invocations/branches (expressed as % of " \
2784 "CompileThreshold) before using the method's profile") \ 2819 "CompileThreshold) before using the method's profile") \
2785 \ 2820 \
2786 develop(bool, PrintMethodData, false, \ 2821 develop(bool, PrintMethodData, false, \
2787 "Print the results of +ProfileInterpreter at end of run") \ 2822 "Print the results of +ProfileInterpreter at end of run") \
2788 \ 2823 \
2789 develop(bool, VerifyDataPointer, trueInDebug, \ 2824 develop(bool, VerifyDataPointer, trueInDebug, \
2790 "Verify the method data pointer during interpreter profiling") \ 2825 "Verify the method data pointer during interpreter profiling") \
2791 \ 2826 \
2792 develop(bool, VerifyCompiledCode, false, \ 2827 develop(bool, VerifyCompiledCode, false, \
2797 "Manually make GC thread crash then dump java stack trace; " \ 2832 "Manually make GC thread crash then dump java stack trace; " \
2798 "Test only") \ 2833 "Test only") \
2799 \ 2834 \
2800 /* compilation */ \ 2835 /* compilation */ \
2801 product(bool, UseCompiler, true, \ 2836 product(bool, UseCompiler, true, \
2802 "use compilation") \ 2837 "Use Just-In-Time compilation") \
2803 \ 2838 \
2804 develop(bool, TraceCompilationPolicy, false, \ 2839 develop(bool, TraceCompilationPolicy, false, \
2805 "Trace compilation policy") \ 2840 "Trace compilation policy") \
2806 \ 2841 \
2807 develop(bool, TimeCompilationPolicy, false, \ 2842 develop(bool, TimeCompilationPolicy, false, \
2808 "Time the compilation policy") \ 2843 "Time the compilation policy") \
2809 \ 2844 \
2810 product(bool, UseCounterDecay, true, \ 2845 product(bool, UseCounterDecay, true, \
2811 "adjust recompilation counters") \ 2846 "Adjust recompilation counters") \
2812 \ 2847 \
2813 develop(intx, CounterHalfLifeTime, 30, \ 2848 develop(intx, CounterHalfLifeTime, 30, \
2814 "half-life time of invocation counters (in secs)") \ 2849 "Half-life time of invocation counters (in seconds)") \
2815 \ 2850 \
2816 develop(intx, CounterDecayMinIntervalLength, 500, \ 2851 develop(intx, CounterDecayMinIntervalLength, 500, \
2817 "Min. ms. between invocation of CounterDecay") \ 2852 "The minimum interval (in milliseconds) between invocation of " \
2853 "CounterDecay") \
2818 \ 2854 \
2819 product(bool, AlwaysCompileLoopMethods, false, \ 2855 product(bool, AlwaysCompileLoopMethods, false, \
2820 "when using recompilation, never interpret methods " \ 2856 "When using recompilation, never interpret methods " \
2821 "containing loops") \ 2857 "containing loops") \
2822 \ 2858 \
2823 product(bool, DontCompileHugeMethods, true, \ 2859 product(bool, DontCompileHugeMethods, true, \
2824 "don't compile methods > HugeMethodLimit") \ 2860 "Do not compile methods > HugeMethodLimit") \
2825 \ 2861 \
2826 /* Bytecode escape analysis estimation. */ \ 2862 /* Bytecode escape analysis estimation. */ \
2827 product(bool, EstimateArgEscape, true, \ 2863 product(bool, EstimateArgEscape, true, \
2828 "Analyze bytecodes to estimate escape state of arguments") \ 2864 "Analyze bytecodes to estimate escape state of arguments") \
2829 \ 2865 \
2830 product(intx, BCEATraceLevel, 0, \ 2866 product(intx, BCEATraceLevel, 0, \
2831 "How much tracing to do of bytecode escape analysis estimates") \ 2867 "How much tracing to do of bytecode escape analysis estimates") \
2832 \ 2868 \
2833 product(intx, MaxBCEAEstimateLevel, 5, \ 2869 product(intx, MaxBCEAEstimateLevel, 5, \
2834 "Maximum number of nested calls that are analyzed by BC EA.") \ 2870 "Maximum number of nested calls that are analyzed by BC EA") \
2835 \ 2871 \
2836 product(intx, MaxBCEAEstimateSize, 150, \ 2872 product(intx, MaxBCEAEstimateSize, 150, \
2837 "Maximum bytecode size of a method to be analyzed by BC EA.") \ 2873 "Maximum bytecode size of a method to be analyzed by BC EA") \
2838 \ 2874 \
2839 product(intx, AllocatePrefetchStyle, 1, \ 2875 product(intx, AllocatePrefetchStyle, 1, \
2840 "0 = no prefetch, " \ 2876 "0 = no prefetch, " \
2841 "1 = prefetch instructions for each allocation, " \ 2877 "1 = prefetch instructions for each allocation, " \
2842 "2 = use TLAB watermark to gate allocation prefetch, " \ 2878 "2 = use TLAB watermark to gate allocation prefetch, " \
2847 \ 2883 \
2848 product(intx, AllocatePrefetchLines, 3, \ 2884 product(intx, AllocatePrefetchLines, 3, \
2849 "Number of lines to prefetch ahead of array allocation pointer") \ 2885 "Number of lines to prefetch ahead of array allocation pointer") \
2850 \ 2886 \
2851 product(intx, AllocateInstancePrefetchLines, 1, \ 2887 product(intx, AllocateInstancePrefetchLines, 1, \
2852 "Number of lines to prefetch ahead of instance allocation pointer") \ 2888 "Number of lines to prefetch ahead of instance allocation " \
2889 "pointer") \
2853 \ 2890 \
2854 product(intx, AllocatePrefetchStepSize, 16, \ 2891 product(intx, AllocatePrefetchStepSize, 16, \
2855 "Step size in bytes of sequential prefetch instructions") \ 2892 "Step size in bytes of sequential prefetch instructions") \
2856 \ 2893 \
2857 product(intx, AllocatePrefetchInstr, 0, \ 2894 product(intx, AllocatePrefetchInstr, 0, \
2870 product(intx, SelfDestructTimer, 0, \ 2907 product(intx, SelfDestructTimer, 0, \
2871 "Will cause VM to terminate after a given time (in minutes) " \ 2908 "Will cause VM to terminate after a given time (in minutes) " \
2872 "(0 means off)") \ 2909 "(0 means off)") \
2873 \ 2910 \
2874 product(intx, MaxJavaStackTraceDepth, 1024, \ 2911 product(intx, MaxJavaStackTraceDepth, 1024, \
2875 "Max. no. of lines in the stack trace for Java exceptions " \ 2912 "The maximum number of lines in the stack trace for Java " \
2876 "(0 means all)") \ 2913 "exceptions (0 means all)") \
2877 \ 2914 \
2878 NOT_EMBEDDED(diagnostic(intx, GuaranteedSafepointInterval, 1000, \ 2915 NOT_EMBEDDED(diagnostic(intx, GuaranteedSafepointInterval, 1000, \
2879 "Guarantee a safepoint (at least) every so many milliseconds " \ 2916 "Guarantee a safepoint (at least) every so many milliseconds " \
2880 "(0 means none)")) \ 2917 "(0 means none)")) \
2881 \ 2918 \
2895 product(intx, NmethodSweepActivity, 10, \ 2932 product(intx, NmethodSweepActivity, 10, \
2896 "Removes cold nmethods from code cache if > 0. Higher values " \ 2933 "Removes cold nmethods from code cache if > 0. Higher values " \
2897 "result in more aggressive sweeping") \ 2934 "result in more aggressive sweeping") \
2898 \ 2935 \
2899 notproduct(bool, LogSweeper, false, \ 2936 notproduct(bool, LogSweeper, false, \
2900 "Keep a ring buffer of sweeper activity") \ 2937 "Keep a ring buffer of sweeper activity") \
2901 \ 2938 \
2902 notproduct(intx, SweeperLogEntries, 1024, \ 2939 notproduct(intx, SweeperLogEntries, 1024, \
2903 "Number of records in the ring buffer of sweeper activity") \ 2940 "Number of records in the ring buffer of sweeper activity") \
2904 \ 2941 \
2905 notproduct(intx, MemProfilingInterval, 500, \ 2942 notproduct(intx, MemProfilingInterval, 500, \
2906 "Time between each invocation of the MemProfiler") \ 2943 "Time between each invocation of the MemProfiler") \
2907 \ 2944 \
2908 develop(intx, MallocCatchPtr, -1, \ 2945 develop(intx, MallocCatchPtr, -1, \
2936 "maximum number of nested calls that are inlined") \ 2973 "maximum number of nested calls that are inlined") \
2937 \ 2974 \
2938 product(intx, MaxRecursiveInlineLevel, 1, \ 2975 product(intx, MaxRecursiveInlineLevel, 1, \
2939 "maximum number of nested recursive calls that are inlined") \ 2976 "maximum number of nested recursive calls that are inlined") \
2940 \ 2977 \
2978 develop(intx, MaxForceInlineLevel, 100, \
2979 "maximum number of nested @ForceInline calls that are inlined") \
2980 \
2941 product_pd(intx, InlineSmallCode, \ 2981 product_pd(intx, InlineSmallCode, \
2942 "Only inline already compiled methods if their code size is " \ 2982 "Only inline already compiled methods if their code size is " \
2943 "less than this") \ 2983 "less than this") \
2944 \ 2984 \
2945 product(intx, MaxInlineSize, 35, \ 2985 product(intx, MaxInlineSize, 35, \
2946 "maximum bytecode size of a method to be inlined") \ 2986 "The maximum bytecode size of a method to be inlined") \
2947 \ 2987 \
2948 product_pd(intx, FreqInlineSize, \ 2988 product_pd(intx, FreqInlineSize, \
2949 "maximum bytecode size of a frequent method to be inlined") \ 2989 "The maximum bytecode size of a frequent method to be inlined") \
2950 \ 2990 \
2951 product(intx, MaxTrivialSize, 6, \ 2991 product(intx, MaxTrivialSize, 6, \
2952 "maximum bytecode size of a trivial method to be inlined") \ 2992 "The maximum bytecode size of a trivial method to be inlined") \
2953 \ 2993 \
2954 product(intx, MinInliningThreshold, 250, \ 2994 product(intx, MinInliningThreshold, 250, \
2955 "min. invocation count a method needs to have to be inlined") \ 2995 "The minimum invocation count a method needs to have to be " \
2996 "inlined") \
2956 \ 2997 \
2957 develop(intx, MethodHistogramCutoff, 100, \ 2998 develop(intx, MethodHistogramCutoff, 100, \
2958 "cutoff value for method invoc. histogram (+CountCalls)") \ 2999 "The cutoff value for method invocation histogram (+CountCalls)") \
2959 \ 3000 \
2960 develop(intx, ProfilerNumberOfInterpretedMethods, 25, \ 3001 develop(intx, ProfilerNumberOfInterpretedMethods, 25, \
2961 "# of interpreted methods to show in profile") \ 3002 "Number of interpreted methods to show in profile") \
2962 \ 3003 \
2963 develop(intx, ProfilerNumberOfCompiledMethods, 25, \ 3004 develop(intx, ProfilerNumberOfCompiledMethods, 25, \
2964 "# of compiled methods to show in profile") \ 3005 "Number of compiled methods to show in profile") \
2965 \ 3006 \
2966 develop(intx, ProfilerNumberOfStubMethods, 25, \ 3007 develop(intx, ProfilerNumberOfStubMethods, 25, \
2967 "# of stub methods to show in profile") \ 3008 "Number of stub methods to show in profile") \
2968 \ 3009 \
2969 develop(intx, ProfilerNumberOfRuntimeStubNodes, 25, \ 3010 develop(intx, ProfilerNumberOfRuntimeStubNodes, 25, \
2970 "# of runtime stub nodes to show in profile") \ 3011 "Number of runtime stub nodes to show in profile") \
2971 \ 3012 \
2972 product(intx, ProfileIntervalsTicks, 100, \ 3013 product(intx, ProfileIntervalsTicks, 100, \
2973 "# of ticks between printing of interval profile " \ 3014 "Number of ticks between printing of interval profile " \
2974 "(+ProfileIntervals)") \ 3015 "(+ProfileIntervals)") \
2975 \ 3016 \
2976 notproduct(intx, ScavengeALotInterval, 1, \ 3017 notproduct(intx, ScavengeALotInterval, 1, \
2977 "Interval between which scavenge will occur with +ScavengeALot") \ 3018 "Interval between which scavenge will occur with +ScavengeALot") \
2978 \ 3019 \
2989 develop(intx, DontYieldALotInterval, 10, \ 3030 develop(intx, DontYieldALotInterval, 10, \
2990 "Interval between which yields will be dropped (milliseconds)") \ 3031 "Interval between which yields will be dropped (milliseconds)") \
2991 \ 3032 \
2992 develop(intx, MinSleepInterval, 1, \ 3033 develop(intx, MinSleepInterval, 1, \
2993 "Minimum sleep() interval (milliseconds) when " \ 3034 "Minimum sleep() interval (milliseconds) when " \
2994 "ConvertSleepToYield is off (used for SOLARIS)") \ 3035 "ConvertSleepToYield is off (used for Solaris)") \
2995 \ 3036 \
2996 develop(intx, ProfilerPCTickThreshold, 15, \ 3037 develop(intx, ProfilerPCTickThreshold, 15, \
2997 "Number of ticks in a PC buckets to be a hotspot") \ 3038 "Number of ticks in a PC buckets to be a hotspot") \
2998 \ 3039 \
2999 notproduct(intx, DeoptimizeALotInterval, 5, \ 3040 notproduct(intx, DeoptimizeALotInterval, 5, \
3000 "Number of exits until DeoptimizeALot kicks in") \ 3041 "Number of exits until DeoptimizeALot kicks in") \
3001 \ 3042 \
3002 notproduct(intx, ZombieALotInterval, 5, \ 3043 notproduct(intx, ZombieALotInterval, 5, \
3003 "Number of exits until ZombieALot kicks in") \ 3044 "Number of exits until ZombieALot kicks in") \
3004 \ 3045 \
3005 develop(bool, StressNonEntrant, false, \
3006 "Mark nmethods non-entrant at registration") \
3007 \
3008 diagnostic(intx, MallocVerifyInterval, 0, \ 3046 diagnostic(intx, MallocVerifyInterval, 0, \
3009 "if non-zero, verify C heap after every N calls to " \ 3047 "If non-zero, verify C heap after every N calls to " \
3010 "malloc/realloc/free") \ 3048 "malloc/realloc/free") \
3011 \ 3049 \
3012 diagnostic(intx, MallocVerifyStart, 0, \ 3050 diagnostic(intx, MallocVerifyStart, 0, \
3013 "if non-zero, start verifying C heap after Nth call to " \ 3051 "If non-zero, start verifying C heap after Nth call to " \
3014 "malloc/realloc/free") \ 3052 "malloc/realloc/free") \
3015 \ 3053 \
3016 diagnostic(uintx, MallocMaxTestWords, 0, \ 3054 diagnostic(uintx, MallocMaxTestWords, 0, \
3017 "if non-zero, max # of Words that malloc/realloc can allocate " \ 3055 "If non-zero, maximum number of words that malloc/realloc can " \
3018 "(for testing only)") \ 3056 "allocate (for testing only)") \
3019 \ 3057 \
3020 product_pd(intx, TypeProfileWidth, \ 3058 product(intx, TypeProfileWidth, 2, \
3021 "number of receiver types to record in call/cast profile") \ 3059 "Number of receiver types to record in call/cast profile") \
3022 \ 3060 \
3023 product_pd(intx, MethodProfileWidth, \ 3061 product_pd(intx, MethodProfileWidth, \
3024 "number of methods to record in call profile") \ 3062 "number of methods to record in call profile") \
3025 \ 3063 \
3026 develop(intx, BciProfileWidth, 2, \ 3064 develop(intx, BciProfileWidth, 2, \
3027 "number of return bci's to record in ret profile") \ 3065 "Number of return bci's to record in ret profile") \
3028 \ 3066 \
3029 product(intx, PerMethodRecompilationCutoff, 400, \ 3067 product(intx, PerMethodRecompilationCutoff, 400, \
3030 "After recompiling N times, stay in the interpreter (-1=>'Inf')") \ 3068 "After recompiling N times, stay in the interpreter (-1=>'Inf')") \
3031 \ 3069 \
3032 product(intx, PerBytecodeRecompilationCutoff, 200, \ 3070 product(intx, PerBytecodeRecompilationCutoff, 200, \
3089 \ 3127 \
3090 product(uintx, TLABWasteTargetPercent, 1, \ 3128 product(uintx, TLABWasteTargetPercent, 1, \
3091 "Percentage of Eden that can be wasted") \ 3129 "Percentage of Eden that can be wasted") \
3092 \ 3130 \
3093 product(uintx, TLABRefillWasteFraction, 64, \ 3131 product(uintx, TLABRefillWasteFraction, 64, \
3094 "Max TLAB waste at a refill (internal fragmentation)") \ 3132 "Maximum TLAB waste at a refill (internal fragmentation)") \
3095 \ 3133 \
3096 product(uintx, TLABWasteIncrement, 4, \ 3134 product(uintx, TLABWasteIncrement, 4, \
3097 "Increment allowed waste at slow allocation") \ 3135 "Increment allowed waste at slow allocation") \
3098 \ 3136 \
3099 product(uintx, SurvivorRatio, 8, \ 3137 product(uintx, SurvivorRatio, 8, \
3100 "Ratio of eden/survivor space size") \ 3138 "Ratio of eden/survivor space size") \
3101 \ 3139 \
3102 product(uintx, NewRatio, 2, \ 3140 product(uintx, NewRatio, 2, \
3103 "Ratio of new/old generation sizes") \ 3141 "Ratio of old/new generation sizes") \
3104 \ 3142 \
3105 product_pd(uintx, NewSizeThreadIncrease, \ 3143 product_pd(uintx, NewSizeThreadIncrease, \
3106 "Additional size added to desired new generation size per " \ 3144 "Additional size added to desired new generation size per " \
3107 "non-daemon thread (in bytes)") \ 3145 "non-daemon thread (in bytes)") \
3108 \ 3146 \
3115 product(uintx, CompressedClassSpaceSize, 1*G, \ 3153 product(uintx, CompressedClassSpaceSize, 1*G, \
3116 "Maximum size of class area in Metaspace when compressed " \ 3154 "Maximum size of class area in Metaspace when compressed " \
3117 "class pointers are used") \ 3155 "class pointers are used") \
3118 \ 3156 \
3119 product(uintx, MinHeapFreeRatio, 40, \ 3157 product(uintx, MinHeapFreeRatio, 40, \
3120 "Min percentage of heap free after GC to avoid expansion") \ 3158 "The minimum percentage of heap free after GC to avoid expansion."\
3159 " For most GCs this applies to the old generation. In G1 it" \
3160 " applies to the whole heap. Not supported by ParallelGC.") \
3121 \ 3161 \
3122 product(uintx, MaxHeapFreeRatio, 70, \ 3162 product(uintx, MaxHeapFreeRatio, 70, \
3123 "Max percentage of heap free after GC to avoid shrinking") \ 3163 "The maximum percentage of heap free after GC to avoid shrinking."\
3164 " For most GCs this applies to the old generation. In G1 it" \
3165 " applies to the whole heap. Not supported by ParallelGC.") \
3124 \ 3166 \
3125 product(intx, SoftRefLRUPolicyMSPerMB, 1000, \ 3167 product(intx, SoftRefLRUPolicyMSPerMB, 1000, \
3126 "Number of milliseconds per MB of free space in the heap") \ 3168 "Number of milliseconds per MB of free space in the heap") \
3127 \ 3169 \
3128 product(uintx, MinHeapDeltaBytes, ScaleForWordSize(128*K), \ 3170 product(uintx, MinHeapDeltaBytes, ScaleForWordSize(128*K), \
3129 "Min change in heap space due to GC (in bytes)") \ 3171 "The minimum change in heap space due to GC (in bytes)") \
3130 \ 3172 \
3131 product(uintx, MinMetaspaceExpansion, ScaleForWordSize(256*K), \ 3173 product(uintx, MinMetaspaceExpansion, ScaleForWordSize(256*K), \
3132 "Min expansion of Metaspace (in bytes)") \ 3174 "The minimum expansion of Metaspace (in bytes)") \
3133 \ 3175 \
3134 product(uintx, MinMetaspaceFreeRatio, 40, \ 3176 product(uintx, MinMetaspaceFreeRatio, 40, \
3135 "Min percentage of Metaspace free after GC to avoid expansion") \ 3177 "The minimum percentage of Metaspace free after GC to avoid " \
3178 "expansion") \
3136 \ 3179 \
3137 product(uintx, MaxMetaspaceFreeRatio, 70, \ 3180 product(uintx, MaxMetaspaceFreeRatio, 70, \
3138 "Max percentage of Metaspace free after GC to avoid shrinking") \ 3181 "The maximum percentage of Metaspace free after GC to avoid " \
3182 "shrinking") \
3139 \ 3183 \
3140 product(uintx, MaxMetaspaceExpansion, ScaleForWordSize(4*M), \ 3184 product(uintx, MaxMetaspaceExpansion, ScaleForWordSize(4*M), \
3141 "Max expansion of Metaspace without full GC (in bytes)") \ 3185 "The maximum expansion of Metaspace without full GC (in bytes)") \
3142 \ 3186 \
3143 product(uintx, QueuedAllocationWarningCount, 0, \ 3187 product(uintx, QueuedAllocationWarningCount, 0, \
3144 "Number of times an allocation that queues behind a GC " \ 3188 "Number of times an allocation that queues behind a GC " \
3145 "will retry before printing a warning") \ 3189 "will retry before printing a warning") \
3146 \ 3190 \
3158 \ 3202 \
3159 product(uintx, TargetSurvivorRatio, 50, \ 3203 product(uintx, TargetSurvivorRatio, 50, \
3160 "Desired percentage of survivor space used after scavenge") \ 3204 "Desired percentage of survivor space used after scavenge") \
3161 \ 3205 \
3162 product(uintx, MarkSweepDeadRatio, 5, \ 3206 product(uintx, MarkSweepDeadRatio, 5, \
3163 "Percentage (0-100) of the old gen allowed as dead wood." \ 3207 "Percentage (0-100) of the old gen allowed as dead wood. " \
3164 "Serial mark sweep treats this as both the min and max value." \ 3208 "Serial mark sweep treats this as both the minimum and maximum " \
3165 "CMS uses this value only if it falls back to mark sweep." \ 3209 "value. " \
3166 "Par compact uses a variable scale based on the density of the" \ 3210 "CMS uses this value only if it falls back to mark sweep. " \
3167 "generation and treats this as the max value when the heap is" \ 3211 "Par compact uses a variable scale based on the density of the " \
3168 "either completely full or completely empty. Par compact also" \ 3212 "generation and treats this as the maximum value when the heap " \
3169 "has a smaller default value; see arguments.cpp.") \ 3213 "is either completely full or completely empty. Par compact " \
3214 "also has a smaller default value; see arguments.cpp.") \
3170 \ 3215 \
3171 product(uintx, MarkSweepAlwaysCompactCount, 4, \ 3216 product(uintx, MarkSweepAlwaysCompactCount, 4, \
3172 "How often should we fully compact the heap (ignoring the dead " \ 3217 "How often should we fully compact the heap (ignoring the dead " \
3173 "space parameters)") \ 3218 "space parameters)") \
3174 \ 3219 \
3183 \ 3228 \
3184 product(intx, PrintFLSCensus, 0, \ 3229 product(intx, PrintFLSCensus, 0, \
3185 "Census for CMS' FreeListSpace") \ 3230 "Census for CMS' FreeListSpace") \
3186 \ 3231 \
3187 develop(uintx, GCExpandToAllocateDelayMillis, 0, \ 3232 develop(uintx, GCExpandToAllocateDelayMillis, 0, \
3188 "Delay in ms between expansion and allocation") \ 3233 "Delay between expansion and allocation (in milliseconds)") \
3189 \ 3234 \
3190 develop(uintx, GCWorkerDelayMillis, 0, \ 3235 develop(uintx, GCWorkerDelayMillis, 0, \
3191 "Delay in ms in scheduling GC workers") \ 3236 "Delay in scheduling GC workers (in milliseconds)") \
3192 \ 3237 \
3193 product(intx, DeferThrSuspendLoopCount, 4000, \ 3238 product(intx, DeferThrSuspendLoopCount, 4000, \
3194 "(Unstable) Number of times to iterate in safepoint loop " \ 3239 "(Unstable) Number of times to iterate in safepoint loop " \
3195 " before blocking VM threads ") \ 3240 "before blocking VM threads ") \
3196 \ 3241 \
3197 product(intx, DeferPollingPageLoopCount, -1, \ 3242 product(intx, DeferPollingPageLoopCount, -1, \
3198 "(Unsafe,Unstable) Number of iterations in safepoint loop " \ 3243 "(Unsafe,Unstable) Number of iterations in safepoint loop " \
3199 "before changing safepoint polling page to RO ") \ 3244 "before changing safepoint polling page to RO ") \
3200 \ 3245 \
3201 product(intx, SafepointSpinBeforeYield, 2000, "(Unstable)") \ 3246 product(intx, SafepointSpinBeforeYield, 2000, "(Unstable)") \
3202 \ 3247 \
3203 product(bool, PSChunkLargeArrays, true, \ 3248 product(bool, PSChunkLargeArrays, true, \
3204 "true: process large arrays in chunks") \ 3249 "Process large arrays in chunks") \
3205 \ 3250 \
3206 product(uintx, GCDrainStackTargetSize, 64, \ 3251 product(uintx, GCDrainStackTargetSize, 64, \
3207 "how many entries we'll try to leave on the stack during " \ 3252 "Number of entries we will try to leave on the stack " \
3208 "parallel GC") \ 3253 "during parallel gc") \
3209 \ 3254 \
3210 /* stack parameters */ \ 3255 /* stack parameters */ \
3211 product_pd(intx, StackYellowPages, \ 3256 product_pd(intx, StackYellowPages, \
3212 "Number of yellow zone (recoverable overflows) pages") \ 3257 "Number of yellow zone (recoverable overflows) pages") \
3213 \ 3258 \
3214 product_pd(intx, StackRedPages, \ 3259 product_pd(intx, StackRedPages, \
3215 "Number of red zone (unrecoverable overflows) pages") \ 3260 "Number of red zone (unrecoverable overflows) pages") \
3216 \ 3261 \
3217 product_pd(intx, StackShadowPages, \ 3262 product_pd(intx, StackShadowPages, \
3218 "Number of shadow zone (for overflow checking) pages" \ 3263 "Number of shadow zone (for overflow checking) pages " \
3219 " this should exceed the depth of the VM and native call stack") \ 3264 "this should exceed the depth of the VM and native call stack") \
3220 \ 3265 \
3221 product_pd(intx, ThreadStackSize, \ 3266 product_pd(intx, ThreadStackSize, \
3222 "Thread Stack Size (in Kbytes)") \ 3267 "Thread Stack Size (in Kbytes)") \
3223 \ 3268 \
3224 product_pd(intx, VMThreadStackSize, \ 3269 product_pd(intx, VMThreadStackSize, \
3254 \ 3299 \
3255 product_pd(uintx, ReservedCodeCacheSize, \ 3300 product_pd(uintx, ReservedCodeCacheSize, \
3256 "Reserved code cache size (in bytes) - maximum code cache size") \ 3301 "Reserved code cache size (in bytes) - maximum code cache size") \
3257 \ 3302 \
3258 product(uintx, CodeCacheMinimumFreeSpace, 500*K, \ 3303 product(uintx, CodeCacheMinimumFreeSpace, 500*K, \
3259 "When less than X space left, we stop compiling.") \ 3304 "When less than X space left, we stop compiling") \
3260 \ 3305 \
3261 product_pd(uintx, CodeCacheExpansionSize, \ 3306 product_pd(uintx, CodeCacheExpansionSize, \
3262 "Code cache expansion size (in bytes)") \ 3307 "Code cache expansion size (in bytes)") \
3263 \ 3308 \
3264 develop_pd(uintx, CodeCacheMinBlockLength, \ 3309 develop_pd(uintx, CodeCacheMinBlockLength, \
3265 "Minimum number of segments in a code cache block.") \ 3310 "Minimum number of segments in a code cache block") \
3266 \ 3311 \
3267 notproduct(bool, ExitOnFullCodeCache, false, \ 3312 notproduct(bool, ExitOnFullCodeCache, false, \
3268 "Exit the VM if we fill the code cache.") \ 3313 "Exit the VM if we fill the code cache") \
3269 \ 3314 \
3270 product(bool, UseCodeCacheFlushing, true, \ 3315 product(bool, UseCodeCacheFlushing, true, \
3271 "Attempt to clean the code cache before shutting off compiler") \ 3316 "Remove cold/old nmethods from the code cache") \
3272 \ 3317 \
3273 /* interpreter debugging */ \ 3318 /* interpreter debugging */ \
3274 develop(intx, BinarySwitchThreshold, 5, \ 3319 develop(intx, BinarySwitchThreshold, 5, \
3275 "Minimal number of lookupswitch entries for rewriting to binary " \ 3320 "Minimal number of lookupswitch entries for rewriting to binary " \
3276 "switch") \ 3321 "switch") \
3277 \ 3322 \
3278 develop(intx, StopInterpreterAt, 0, \ 3323 develop(intx, StopInterpreterAt, 0, \
3279 "Stops interpreter execution at specified bytecode number") \ 3324 "Stop interpreter execution at specified bytecode number") \
3280 \ 3325 \
3281 develop(intx, TraceBytecodesAt, 0, \ 3326 develop(intx, TraceBytecodesAt, 0, \
3282 "Traces bytecodes starting with specified bytecode number") \ 3327 "Trace bytecodes starting with specified bytecode number") \
3283 \ 3328 \
3284 /* compiler interface */ \ 3329 /* compiler interface */ \
3285 develop(intx, CIStart, 0, \ 3330 develop(intx, CIStart, 0, \
3286 "the id of the first compilation to permit") \ 3331 "The id of the first compilation to permit") \
3287 \ 3332 \
3288 develop(intx, CIStop, -1, \ 3333 develop(intx, CIStop, -1, \
3289 "the id of the last compilation to permit") \ 3334 "The id of the last compilation to permit") \
3290 \ 3335 \
3291 develop(intx, CIStartOSR, 0, \ 3336 develop(intx, CIStartOSR, 0, \
3292 "the id of the first osr compilation to permit " \ 3337 "The id of the first osr compilation to permit " \
3293 "(CICountOSR must be on)") \ 3338 "(CICountOSR must be on)") \
3294 \ 3339 \
3295 develop(intx, CIStopOSR, -1, \ 3340 develop(intx, CIStopOSR, -1, \
3296 "the id of the last osr compilation to permit " \ 3341 "The id of the last osr compilation to permit " \
3297 "(CICountOSR must be on)") \ 3342 "(CICountOSR must be on)") \
3298 \ 3343 \
3299 develop(intx, CIBreakAtOSR, -1, \ 3344 develop(intx, CIBreakAtOSR, -1, \
3300 "id of osr compilation to break at") \ 3345 "The id of osr compilation to break at") \
3301 \ 3346 \
3302 develop(intx, CIBreakAt, -1, \ 3347 develop(intx, CIBreakAt, -1, \
3303 "id of compilation to break at") \ 3348 "The id of compilation to break at") \
3304 \ 3349 \
3305 product(ccstrlist, CompileOnly, "", \ 3350 product(ccstrlist, CompileOnly, "", \
3306 "List of methods (pkg/class.name) to restrict compilation to") \ 3351 "List of methods (pkg/class.name) to restrict compilation to") \
3307 \ 3352 \
3308 product(ccstr, CompileCommandFile, NULL, \ 3353 product(ccstr, CompileCommandFile, NULL, \
3317 product(ccstr, ReplayDataFile, NULL, \ 3362 product(ccstr, ReplayDataFile, NULL, \
3318 "File containing compilation replay information" \ 3363 "File containing compilation replay information" \
3319 "[default: ./replay_pid%p.log] (%p replaced with pid)") \ 3364 "[default: ./replay_pid%p.log] (%p replaced with pid)") \
3320 \ 3365 \
3321 develop(intx, ReplaySuppressInitializers, 2, \ 3366 develop(intx, ReplaySuppressInitializers, 2, \
3322 "Controls handling of class initialization during replay" \ 3367 "Control handling of class initialization during replay: " \
3323 "0 - don't do anything special" \ 3368 "0 - don't do anything special; " \
3324 "1 - treat all class initializers as empty" \ 3369 "1 - treat all class initializers as empty; " \
3325 "2 - treat class initializers for application classes as empty" \ 3370 "2 - treat class initializers for application classes as empty; " \
3326 "3 - allow all class initializers to run during bootstrap but" \ 3371 "3 - allow all class initializers to run during bootstrap but " \
3327 " pretend they are empty after starting replay") \ 3372 " pretend they are empty after starting replay") \
3328 \ 3373 \
3329 develop(bool, ReplayIgnoreInitErrors, false, \ 3374 develop(bool, ReplayIgnoreInitErrors, false, \
3330 "Ignore exceptions thrown during initialization for replay") \ 3375 "Ignore exceptions thrown during initialization for replay") \
3331 \ 3376 \
3350 \ 3395 \
3351 product(intx, ThreadPriorityPolicy, 0, \ 3396 product(intx, ThreadPriorityPolicy, 0, \
3352 "0 : Normal. "\ 3397 "0 : Normal. "\
3353 " VM chooses priorities that are appropriate for normal "\ 3398 " VM chooses priorities that are appropriate for normal "\
3354 " applications. On Solaris NORM_PRIORITY and above are mapped "\ 3399 " applications. On Solaris NORM_PRIORITY and above are mapped "\
3355 " to normal native priority. Java priorities below NORM_PRIORITY"\ 3400 " to normal native priority. Java priorities below " \
3356 " map to lower native priority values. On Windows applications"\ 3401 " NORM_PRIORITY map to lower native priority values. On "\
3357 " are allowed to use higher native priorities. However, with "\ 3402 " Windows applications are allowed to use higher native "\
3358 " ThreadPriorityPolicy=0, VM will not use the highest possible"\ 3403 " priorities. However, with ThreadPriorityPolicy=0, VM will "\
3359 " native priority, THREAD_PRIORITY_TIME_CRITICAL, as it may "\ 3404 " not use the highest possible native priority, "\
3360 " interfere with system threads. On Linux thread priorities "\ 3405 " THREAD_PRIORITY_TIME_CRITICAL, as it may interfere with "\
3361 " are ignored because the OS does not support static priority "\ 3406 " system threads. On Linux thread priorities are ignored "\
3362 " in SCHED_OTHER scheduling class which is the only choice for"\ 3407 " because the OS does not support static priority in "\
3408 " SCHED_OTHER scheduling class which is the only choice for "\
3363 " non-root, non-realtime applications. "\ 3409 " non-root, non-realtime applications. "\
3364 "1 : Aggressive. "\ 3410 "1 : Aggressive. "\
3365 " Java thread priorities map over to the entire range of "\ 3411 " Java thread priorities map over to the entire range of "\
3366 " native thread priorities. Higher Java thread priorities map "\ 3412 " native thread priorities. Higher Java thread priorities map "\
3367 " to higher native thread priorities. This policy should be "\ 3413 " to higher native thread priorities. This policy should be "\
3388 "(Solaris only) Give compiler threads an extra quanta") \ 3434 "(Solaris only) Give compiler threads an extra quanta") \
3389 \ 3435 \
3390 product(bool, VMThreadHintNoPreempt, false, \ 3436 product(bool, VMThreadHintNoPreempt, false, \
3391 "(Solaris only) Give VM thread an extra quanta") \ 3437 "(Solaris only) Give VM thread an extra quanta") \
3392 \ 3438 \
3393 product(intx, JavaPriority1_To_OSPriority, -1, "Map Java priorities to OS priorities") \ 3439 product(intx, JavaPriority1_To_OSPriority, -1, \
3394 product(intx, JavaPriority2_To_OSPriority, -1, "Map Java priorities to OS priorities") \ 3440 "Map Java priorities to OS priorities") \
3395 product(intx, JavaPriority3_To_OSPriority, -1, "Map Java priorities to OS priorities") \ 3441 \
3396 product(intx, JavaPriority4_To_OSPriority, -1, "Map Java priorities to OS priorities") \ 3442 product(intx, JavaPriority2_To_OSPriority, -1, \
3397 product(intx, JavaPriority5_To_OSPriority, -1, "Map Java priorities to OS priorities") \ 3443 "Map Java priorities to OS priorities") \
3398 product(intx, JavaPriority6_To_OSPriority, -1, "Map Java priorities to OS priorities") \ 3444 \
3399 product(intx, JavaPriority7_To_OSPriority, -1, "Map Java priorities to OS priorities") \ 3445 product(intx, JavaPriority3_To_OSPriority, -1, \
3400 product(intx, JavaPriority8_To_OSPriority, -1, "Map Java priorities to OS priorities") \ 3446 "Map Java priorities to OS priorities") \
3401 product(intx, JavaPriority9_To_OSPriority, -1, "Map Java priorities to OS priorities") \ 3447 \
3402 product(intx, JavaPriority10_To_OSPriority,-1, "Map Java priorities to OS priorities") \ 3448 product(intx, JavaPriority4_To_OSPriority, -1, \
3449 "Map Java priorities to OS priorities") \
3450 \
3451 product(intx, JavaPriority5_To_OSPriority, -1, \
3452 "Map Java priorities to OS priorities") \
3453 \
3454 product(intx, JavaPriority6_To_OSPriority, -1, \
3455 "Map Java priorities to OS priorities") \
3456 \
3457 product(intx, JavaPriority7_To_OSPriority, -1, \
3458 "Map Java priorities to OS priorities") \
3459 \
3460 product(intx, JavaPriority8_To_OSPriority, -1, \
3461 "Map Java priorities to OS priorities") \
3462 \
3463 product(intx, JavaPriority9_To_OSPriority, -1, \
3464 "Map Java priorities to OS priorities") \
3465 \
3466 product(intx, JavaPriority10_To_OSPriority,-1, \
3467 "Map Java priorities to OS priorities") \
3403 \ 3468 \
3404 experimental(bool, UseCriticalJavaThreadPriority, false, \ 3469 experimental(bool, UseCriticalJavaThreadPriority, false, \
3405 "Java thread priority 10 maps to critical scheduling priority") \ 3470 "Java thread priority 10 maps to critical scheduling priority") \
3406 \ 3471 \
3407 experimental(bool, UseCriticalCompilerThreadPriority, false, \ 3472 experimental(bool, UseCriticalCompilerThreadPriority, false, \
3428 /* Background Compilation */ \ 3493 /* Background Compilation */ \
3429 develop(intx, LongCompileThreshold, 50, \ 3494 develop(intx, LongCompileThreshold, 50, \
3430 "Used with +TraceLongCompiles") \ 3495 "Used with +TraceLongCompiles") \
3431 \ 3496 \
3432 product(intx, StarvationMonitorInterval, 200, \ 3497 product(intx, StarvationMonitorInterval, 200, \
3433 "Pause between each check in ms") \ 3498 "Pause between each check (in milliseconds)") \
3434 \ 3499 \
3435 /* recompilation */ \ 3500 /* recompilation */ \
3436 product_pd(intx, CompileThreshold, \ 3501 product_pd(intx, CompileThreshold, \
3437 "number of interpreted method invocations before (re-)compiling") \ 3502 "number of interpreted method invocations before (re-)compiling") \
3438 \ 3503 \
3439 product_pd(intx, BackEdgeThreshold, \ 3504 product_pd(intx, BackEdgeThreshold, \
3440 "Interpreter Back edge threshold at which an OSR compilation is invoked")\ 3505 "Interpreter Back edge threshold at which an OSR compilation is " \
3506 "invoked") \
3441 \ 3507 \
3442 product(intx, Tier0InvokeNotifyFreqLog, 7, \ 3508 product(intx, Tier0InvokeNotifyFreqLog, 7, \
3443 "Interpreter (tier 0) invocation notification frequency.") \ 3509 "Interpreter (tier 0) invocation notification frequency") \
3444 \ 3510 \
3445 product(intx, Tier2InvokeNotifyFreqLog, 11, \ 3511 product(intx, Tier2InvokeNotifyFreqLog, 11, \
3446 "C1 without MDO (tier 2) invocation notification frequency.") \ 3512 "C1 without MDO (tier 2) invocation notification frequency") \
3447 \ 3513 \
3448 product(intx, Tier3InvokeNotifyFreqLog, 10, \ 3514 product(intx, Tier3InvokeNotifyFreqLog, 10, \
3449 "C1 with MDO profiling (tier 3) invocation notification " \ 3515 "C1 with MDO profiling (tier 3) invocation notification " \
3450 "frequency.") \ 3516 "frequency") \
3451 \ 3517 \
3452 product(intx, Tier23InlineeNotifyFreqLog, 20, \ 3518 product(intx, Tier23InlineeNotifyFreqLog, 20, \
3453 "Inlinee invocation (tiers 2 and 3) notification frequency") \ 3519 "Inlinee invocation (tiers 2 and 3) notification frequency") \
3454 \ 3520 \
3455 product(intx, Tier0BackedgeNotifyFreqLog, 10, \ 3521 product(intx, Tier0BackedgeNotifyFreqLog, 10, \
3456 "Interpreter (tier 0) invocation notification frequency.") \ 3522 "Interpreter (tier 0) invocation notification frequency") \
3457 \ 3523 \
3458 product(intx, Tier2BackedgeNotifyFreqLog, 14, \ 3524 product(intx, Tier2BackedgeNotifyFreqLog, 14, \
3459 "C1 without MDO (tier 2) invocation notification frequency.") \ 3525 "C1 without MDO (tier 2) invocation notification frequency") \
3460 \ 3526 \
3461 product(intx, Tier3BackedgeNotifyFreqLog, 13, \ 3527 product(intx, Tier3BackedgeNotifyFreqLog, 13, \
3462 "C1 with MDO profiling (tier 3) invocation notification " \ 3528 "C1 with MDO profiling (tier 3) invocation notification " \
3463 "frequency.") \ 3529 "frequency") \
3464 \ 3530 \
3465 product(intx, Tier2CompileThreshold, 0, \ 3531 product(intx, Tier2CompileThreshold, 0, \
3466 "threshold at which tier 2 compilation is invoked") \ 3532 "threshold at which tier 2 compilation is invoked") \
3467 \ 3533 \
3468 product(intx, Tier2BackEdgeThreshold, 0, \ 3534 product(intx, Tier2BackEdgeThreshold, 0, \
3475 product(intx, Tier3MinInvocationThreshold, 100, \ 3541 product(intx, Tier3MinInvocationThreshold, 100, \
3476 "Minimum invocation to compile at tier 3") \ 3542 "Minimum invocation to compile at tier 3") \
3477 \ 3543 \
3478 product(intx, Tier3CompileThreshold, 2000, \ 3544 product(intx, Tier3CompileThreshold, 2000, \
3479 "Threshold at which tier 3 compilation is invoked (invocation " \ 3545 "Threshold at which tier 3 compilation is invoked (invocation " \
3480 "minimum must be satisfied.") \ 3546 "minimum must be satisfied") \
3481 \ 3547 \
3482 product(intx, Tier3BackEdgeThreshold, 60000, \ 3548 product(intx, Tier3BackEdgeThreshold, 60000, \
3483 "Back edge threshold at which tier 3 OSR compilation is invoked") \ 3549 "Back edge threshold at which tier 3 OSR compilation is invoked") \
3484 \ 3550 \
3485 product(intx, Tier4InvocationThreshold, 5000, \ 3551 product(intx, Tier4InvocationThreshold, 5000, \
3489 product(intx, Tier4MinInvocationThreshold, 600, \ 3555 product(intx, Tier4MinInvocationThreshold, 600, \
3490 "Minimum invocation to compile at tier 4") \ 3556 "Minimum invocation to compile at tier 4") \
3491 \ 3557 \
3492 product(intx, Tier4CompileThreshold, 15000, \ 3558 product(intx, Tier4CompileThreshold, 15000, \
3493 "Threshold at which tier 4 compilation is invoked (invocation " \ 3559 "Threshold at which tier 4 compilation is invoked (invocation " \
3494 "minimum must be satisfied.") \ 3560 "minimum must be satisfied") \
3495 \ 3561 \
3496 product(intx, Tier4BackEdgeThreshold, 40000, \ 3562 product(intx, Tier4BackEdgeThreshold, 40000, \
3497 "Back edge threshold at which tier 4 OSR compilation is invoked") \ 3563 "Back edge threshold at which tier 4 OSR compilation is invoked") \
3498 \ 3564 \
3499 product(intx, Tier3DelayOn, 5, \ 3565 product(intx, Tier3DelayOn, 5, \
3518 \ 3584 \
3519 product(intx, TieredStopAtLevel, 4, \ 3585 product(intx, TieredStopAtLevel, 4, \
3520 "Stop at given compilation level") \ 3586 "Stop at given compilation level") \
3521 \ 3587 \
3522 product(intx, Tier0ProfilingStartPercentage, 200, \ 3588 product(intx, Tier0ProfilingStartPercentage, 200, \
3523 "Start profiling in interpreter if the counters exceed tier 3" \ 3589 "Start profiling in interpreter if the counters exceed tier 3 " \
3524 "thresholds by the specified percentage") \ 3590 "thresholds by the specified percentage") \
3525 \ 3591 \
3526 product(uintx, IncreaseFirstTierCompileThresholdAt, 50, \ 3592 product(uintx, IncreaseFirstTierCompileThresholdAt, 50, \
3527 "Increase the compile threshold for C1 compilation if the code" \ 3593 "Increase the compile threshold for C1 compilation if the code " \
3528 "cache is filled by the specified percentage.") \ 3594 "cache is filled by the specified percentage") \
3529 \ 3595 \
3530 product(intx, TieredRateUpdateMinTime, 1, \ 3596 product(intx, TieredRateUpdateMinTime, 1, \
3531 "Minimum rate sampling interval (in milliseconds)") \ 3597 "Minimum rate sampling interval (in milliseconds)") \
3532 \ 3598 \
3533 product(intx, TieredRateUpdateMaxTime, 25, \ 3599 product(intx, TieredRateUpdateMaxTime, 25, \
3538 \ 3604 \
3539 product(bool, PrintTieredEvents, false, \ 3605 product(bool, PrintTieredEvents, false, \
3540 "Print tiered events notifications") \ 3606 "Print tiered events notifications") \
3541 \ 3607 \
3542 product_pd(intx, OnStackReplacePercentage, \ 3608 product_pd(intx, OnStackReplacePercentage, \
3543 "NON_TIERED number of method invocations/branches (expressed as %"\ 3609 "NON_TIERED number of method invocations/branches (expressed as " \
3544 "of CompileThreshold) before (re-)compiling OSR code") \ 3610 "% of CompileThreshold) before (re-)compiling OSR code") \
3545 \ 3611 \
3546 product(intx, InterpreterProfilePercentage, 33, \ 3612 product(intx, InterpreterProfilePercentage, 33, \
3547 "NON_TIERED number of method invocations/branches (expressed as %"\ 3613 "NON_TIERED number of method invocations/branches (expressed as " \
3548 "of CompileThreshold) before profiling in the interpreter") \ 3614 "% of CompileThreshold) before profiling in the interpreter") \
3549 \ 3615 \
3550 develop(intx, MaxRecompilationSearchLength, 10, \ 3616 develop(intx, MaxRecompilationSearchLength, 10, \
3551 "max. # frames to inspect searching for recompilee") \ 3617 "The maximum number of frames to inspect when searching for " \
3618 "recompilee") \
3552 \ 3619 \
3553 develop(intx, MaxInterpretedSearchLength, 3, \ 3620 develop(intx, MaxInterpretedSearchLength, 3, \
3554 "max. # interp. frames to skip when searching for recompilee") \ 3621 "The maximum number of interpreted frames to skip when searching "\
3622 "for recompilee") \
3555 \ 3623 \
3556 develop(intx, DesiredMethodLimit, 8000, \ 3624 develop(intx, DesiredMethodLimit, 8000, \
3557 "desired max. method size (in bytecodes) after inlining") \ 3625 "The desired maximum method size (in bytecodes) after inlining") \
3558 \ 3626 \
3559 develop(intx, HugeMethodLimit, 8000, \ 3627 develop(intx, HugeMethodLimit, 8000, \
3560 "don't compile methods larger than this if " \ 3628 "Don't compile methods larger than this if " \
3561 "+DontCompileHugeMethods") \ 3629 "+DontCompileHugeMethods") \
3562 \ 3630 \
3563 /* New JDK 1.4 reflection implementation */ \ 3631 /* New JDK 1.4 reflection implementation */ \
3564 \ 3632 \
3565 develop(bool, UseNewReflection, true, \ 3633 develop(bool, UseNewReflection, true, \
3577 product(bool, ReflectionWrapResolutionErrors, true, \ 3645 product(bool, ReflectionWrapResolutionErrors, true, \
3578 "Temporary flag for transition to AbstractMethodError wrapped " \ 3646 "Temporary flag for transition to AbstractMethodError wrapped " \
3579 "in InvocationTargetException. See 6531596") \ 3647 "in InvocationTargetException. See 6531596") \
3580 \ 3648 \
3581 develop(bool, VerifyLambdaBytecodes, false, \ 3649 develop(bool, VerifyLambdaBytecodes, false, \
3582 "Force verification of jdk 8 lambda metafactory bytecodes.") \ 3650 "Force verification of jdk 8 lambda metafactory bytecodes") \
3583 \ 3651 \
3584 develop(intx, FastSuperclassLimit, 8, \ 3652 develop(intx, FastSuperclassLimit, 8, \
3585 "Depth of hardwired instanceof accelerator array") \ 3653 "Depth of hardwired instanceof accelerator array") \
3586 \ 3654 \
3587 /* Properties for Java libraries */ \ 3655 /* Properties for Java libraries */ \
3601 "Testing Only: Use the new version while testing") \ 3669 "Testing Only: Use the new version while testing") \
3602 \ 3670 \
3603 /* flags for performance data collection */ \ 3671 /* flags for performance data collection */ \
3604 \ 3672 \
3605 product(bool, UsePerfData, falseInEmbedded, \ 3673 product(bool, UsePerfData, falseInEmbedded, \
3606 "Flag to disable jvmstat instrumentation for performance testing" \ 3674 "Flag to disable jvmstat instrumentation for performance testing "\
3607 "and problem isolation purposes.") \ 3675 "and problem isolation purposes") \
3608 \ 3676 \
3609 product(bool, PerfDataSaveToFile, false, \ 3677 product(bool, PerfDataSaveToFile, false, \
3610 "Save PerfData memory to hsperfdata_<pid> file on exit") \ 3678 "Save PerfData memory to hsperfdata_<pid> file on exit") \
3611 \ 3679 \
3612 product(ccstr, PerfDataSaveFile, NULL, \ 3680 product(ccstr, PerfDataSaveFile, NULL, \
3613 "Save PerfData memory to the specified absolute pathname," \ 3681 "Save PerfData memory to the specified absolute pathname. " \
3614 "%p in the file name if present will be replaced by pid") \ 3682 "The string %p in the file name (if present) " \
3615 \ 3683 "will be replaced by pid") \
3616 product(intx, PerfDataSamplingInterval, 50 /*ms*/, \ 3684 \
3617 "Data sampling interval in milliseconds") \ 3685 product(intx, PerfDataSamplingInterval, 50, \
3686 "Data sampling interval (in milliseconds)") \
3618 \ 3687 \
3619 develop(bool, PerfTraceDataCreation, false, \ 3688 develop(bool, PerfTraceDataCreation, false, \
3620 "Trace creation of Performance Data Entries") \ 3689 "Trace creation of Performance Data Entries") \
3621 \ 3690 \
3622 develop(bool, PerfTraceMemOps, false, \ 3691 develop(bool, PerfTraceMemOps, false, \
3637 \ 3706 \
3638 product(bool, PerfBypassFileSystemCheck, false, \ 3707 product(bool, PerfBypassFileSystemCheck, false, \
3639 "Bypass Win32 file system criteria checks (Windows Only)") \ 3708 "Bypass Win32 file system criteria checks (Windows Only)") \
3640 \ 3709 \
3641 product(intx, UnguardOnExecutionViolation, 0, \ 3710 product(intx, UnguardOnExecutionViolation, 0, \
3642 "Unguard page and retry on no-execute fault (Win32 only)" \ 3711 "Unguard page and retry on no-execute fault (Win32 only) " \
3643 "0=off, 1=conservative, 2=aggressive") \ 3712 "0=off, 1=conservative, 2=aggressive") \
3644 \ 3713 \
3645 /* Serviceability Support */ \ 3714 /* Serviceability Support */ \
3646 \ 3715 \
3647 product(bool, ManagementServer, false, \ 3716 product(bool, ManagementServer, false, \
3648 "Create JMX Management Server") \ 3717 "Create JMX Management Server") \
3649 \ 3718 \
3650 product(bool, DisableAttachMechanism, false, \ 3719 product(bool, DisableAttachMechanism, false, \
3651 "Disable mechanism that allows tools to attach to this VM") \ 3720 "Disable mechanism that allows tools to attach to this VM") \
3652 \ 3721 \
3653 product(bool, StartAttachListener, false, \ 3722 product(bool, StartAttachListener, false, \
3654 "Always start Attach Listener at VM startup") \ 3723 "Always start Attach Listener at VM startup") \
3655 \ 3724 \
3656 manageable(bool, PrintConcurrentLocks, false, \ 3725 manageable(bool, PrintConcurrentLocks, false, \
3669 \ 3738 \
3670 product(bool, RequireSharedSpaces, false, \ 3739 product(bool, RequireSharedSpaces, false, \
3671 "Require shared spaces for metadata") \ 3740 "Require shared spaces for metadata") \
3672 \ 3741 \
3673 product(bool, DumpSharedSpaces, false, \ 3742 product(bool, DumpSharedSpaces, false, \
3674 "Special mode: JVM reads a class list, loads classes, builds " \ 3743 "Special mode: JVM reads a class list, loads classes, builds " \
3675 "shared spaces, and dumps the shared spaces to a file to be " \ 3744 "shared spaces, and dumps the shared spaces to a file to be " \
3676 "used in future JVM runs.") \ 3745 "used in future JVM runs") \
3677 \ 3746 \
3678 product(bool, PrintSharedSpaces, false, \ 3747 product(bool, PrintSharedSpaces, false, \
3679 "Print usage of shared spaces") \ 3748 "Print usage of shared spaces") \
3680 \ 3749 \
3681 product(uintx, SharedReadWriteSize, NOT_LP64(12*M) LP64_ONLY(16*M), \ 3750 product(uintx, SharedReadWriteSize, NOT_LP64(12*M) LP64_ONLY(16*M), \
3744 \ 3813 \
3745 product(bool, RelaxAccessControlCheck, false, \ 3814 product(bool, RelaxAccessControlCheck, false, \
3746 "Relax the access control checks in the verifier") \ 3815 "Relax the access control checks in the verifier") \
3747 \ 3816 \
3748 diagnostic(bool, PrintDTraceDOF, false, \ 3817 diagnostic(bool, PrintDTraceDOF, false, \
3749 "Print the DTrace DOF passed to the system for JSDT probes") \ 3818 "Print the DTrace DOF passed to the system for JSDT probes") \
3750 \ 3819 \
3751 product(uintx, StringTableSize, defaultStringTableSize, \ 3820 product(uintx, StringTableSize, defaultStringTableSize, \
3752 "Number of buckets in the interned String table") \ 3821 "Number of buckets in the interned String table") \
3753 \ 3822 \
3823 experimental(uintx, SymbolTableSize, defaultSymbolTableSize, \
3824 "Number of buckets in the JVM internal Symbol table") \
3825 \
3754 develop(bool, TraceDefaultMethods, false, \ 3826 develop(bool, TraceDefaultMethods, false, \
3755 "Trace the default method processing steps") \ 3827 "Trace the default method processing steps") \
3756 \ 3828 \
3757 develop(bool, VerifyGenericSignatures, false, \ 3829 develop(bool, VerifyGenericSignatures, false, \
3758 "Abort VM on erroneous or inconsistent generic signatures") \ 3830 "Abort VM on erroneous or inconsistent generic signatures") \
3759 \ 3831 \
3760 product(bool, UseVMInterruptibleIO, false, \ 3832 product(bool, UseVMInterruptibleIO, false, \
3761 "(Unstable, Solaris-specific) Thread interrupt before or with " \ 3833 "(Unstable, Solaris-specific) Thread interrupt before or with " \
3762 "EINTR for I/O operations results in OS_INTRPT. The default value"\ 3834 "EINTR for I/O operations results in OS_INTRPT. The default " \
3763 " of this flag is true for JDK 6 and earlier") \ 3835 "value of this flag is true for JDK 6 and earlier") \
3764 \ 3836 \
3765 diagnostic(bool, WhiteBoxAPI, false, \ 3837 diagnostic(bool, WhiteBoxAPI, false, \
3766 "Enable internal testing APIs") \ 3838 "Enable internal testing APIs") \
3767 \ 3839 \
3768 product(bool, PrintGCCause, true, \ 3840 product(bool, PrintGCCause, true, \
3785 "Allocation less than this value will be allocated " \ 3857 "Allocation less than this value will be allocated " \
3786 "using malloc. Larger allocations will use mmap.") \ 3858 "using malloc. Larger allocations will use mmap.") \
3787 \ 3859 \
3788 product(bool, EnableTracing, false, \ 3860 product(bool, EnableTracing, false, \
3789 "Enable event-based tracing") \ 3861 "Enable event-based tracing") \
3862 \
3790 product(bool, UseLockedTracing, false, \ 3863 product(bool, UseLockedTracing, false, \
3791 "Use locked-tracing when doing event-based tracing") 3864 "Use locked-tracing when doing event-based tracing")
3792
3793 3865
3794 /* 3866 /*
3795 * Macros for factoring of globals 3867 * Macros for factoring of globals
3796 */ 3868 */
3797 3869