mirror of
https://github.com/openjdk/jdk.git
synced 2025-09-20 19:14:38 +02:00
8078556: Runtime: implement ranges (optionally constraints) for those flags that have them missing
JEP 245: implement ranges and constraints for runtime flags. Co-authored-by: Goetz Lindenmaier <goetz.lindenmaier@sap.com> Reviewed-by: coleenp, ddmitriev, jiangli, goetz
This commit is contained in:
Gerard Ziemski
parent
7b389d3533
commit
22838597ea
17 changed files with 225 additions and 57 deletions
|
|
@ -891,9 +891,11 @@ public:
|
|||
/* typically, at most a few retries are needed */ \
|
||||
product(intx, SuspendRetryCount, 50, \
|
||||
"Maximum retry count for an external suspend request") \
|
||||
range(0, max_intx) \
|
||||
\
|
||||
product(intx, SuspendRetryDelay, 5, \
|
||||
"Milliseconds to delay per retry (* current_retry_count)") \
|
||||
range(0, max_intx) \
|
||||
\
|
||||
product(bool, AssertOnSuspendWaitFailure, false, \
|
||||
"Assert/Guarantee on external suspend wait failure") \
|
||||
|
|
@ -1332,6 +1334,7 @@ public:
|
|||
"Maximum allowable local JNI handle capacity to " \
|
||||
"EnsureLocalCapacity() and PushLocalFrame(), " \
|
||||
"where <= 0 is unlimited, default: 65536") \
|
||||
range(min_intx, max_intx) \
|
||||
\
|
||||
product(bool, EagerXrunInit, false, \
|
||||
"Eagerly initialize -Xrun libraries; allows startup profiling, " \
|
||||
|
|
@ -1367,7 +1370,7 @@ public:
|
|||
product(intx, ContendedPaddingWidth, 128, \
|
||||
"How many bytes to pad the fields/classes marked @Contended with")\
|
||||
range(0, 8192) \
|
||||
constraint(ContendedPaddingWidthConstraintFunc,AtParse) \
|
||||
constraint(ContendedPaddingWidthConstraintFunc,AfterErgo) \
|
||||
\
|
||||
product(bool, EnableContended, true, \
|
||||
"Enable @Contended annotation support") \
|
||||
|
|
@ -1380,6 +1383,8 @@ public:
|
|||
\
|
||||
product(intx, BiasedLockingStartupDelay, 4000, \
|
||||
"Number of milliseconds to wait before enabling biased locking") \
|
||||
range(0, (intx)(max_jint-(max_jint%PeriodicTask::interval_gran))) \
|
||||
constraint(BiasedLockingStartupDelayFunc,AfterErgo) \
|
||||
\
|
||||
diagnostic(bool, PrintBiasedLockingStatistics, false, \
|
||||
"Print statistics of biased locking in JVM") \
|
||||
|
|
@ -1387,14 +1392,20 @@ public:
|
|||
product(intx, BiasedLockingBulkRebiasThreshold, 20, \
|
||||
"Threshold of number of revocations per type to try to " \
|
||||
"rebias all objects in the heap of that type") \
|
||||
range(0, max_intx) \
|
||||
constraint(BiasedLockingBulkRebiasThresholdFunc,AfterErgo) \
|
||||
\
|
||||
product(intx, BiasedLockingBulkRevokeThreshold, 40, \
|
||||
"Threshold of number of revocations per type to permanently " \
|
||||
"revoke biases of all objects in the heap of that type") \
|
||||
range(0, max_intx) \
|
||||
constraint(BiasedLockingBulkRevokeThresholdFunc,AfterErgo) \
|
||||
\
|
||||
product(intx, BiasedLockingDecayTime, 25000, \
|
||||
"Decay time (in milliseconds) to re-enable bulk rebiasing of a " \
|
||||
"type after previous bulk rebias") \
|
||||
range(500, max_intx) \
|
||||
constraint(BiasedLockingDecayTimeFunc,AfterErgo) \
|
||||
\
|
||||
/* tracing */ \
|
||||
\
|
||||
|
|
@ -1419,8 +1430,9 @@ public:
|
|||
product(bool, StressLdcRewrite, false, \
|
||||
"Force ldc -> ldc_w rewrite during RedefineClasses") \
|
||||
\
|
||||
product(intx, TraceRedefineClasses, 0, \
|
||||
product(uintx, TraceRedefineClasses, 0, \
|
||||
"Trace level for JVMTI RedefineClasses") \
|
||||
range(0, 0xFFFFFFFF) \
|
||||
\
|
||||
/* change to false by default sometime after Mustang */ \
|
||||
product(bool, VerifyMergedCPBytecodes, true, \
|
||||
|
|
@ -2169,6 +2181,7 @@ public:
|
|||
\
|
||||
product_pd(uint64_t, MaxRAM, \
|
||||
"Real memory size (in bytes) used to set maximum heap size") \
|
||||
range(0, 0XFFFFFFFFFFFFFFFF) \
|
||||
\
|
||||
product(size_t, ErgoHeapSizeLimit, 0, \
|
||||
"Maximum ergonomically set heap size (in bytes); zero means use " \
|
||||
|
|
@ -2677,10 +2690,13 @@ public:
|
|||
product(intx, PrintSafepointStatisticsCount, 300, \
|
||||
"Total number of safepoint statistics collected " \
|
||||
"before printing them out") \
|
||||
range(1, max_intx) \
|
||||
\
|
||||
product(intx, PrintSafepointStatisticsTimeout, -1, \
|
||||
"Print safepoint statistics only when safepoint takes " \
|
||||
"more than PrintSafepointSatisticsTimeout in millis") \
|
||||
LP64_ONLY(range(-1, max_intx/MICROUNITS)) \
|
||||
NOT_LP64(range(-1, max_intx)) \
|
||||
\
|
||||
product(bool, TraceSafepointCleanupTime, false, \
|
||||
"Print the break down of clean up tasks performed during " \
|
||||
|
|
@ -2729,6 +2745,7 @@ public:
|
|||
diagnostic(intx, MinPassesBeforeFlush, 10, \
|
||||
"Minimum number of sweeper passes before an nmethod " \
|
||||
"can be flushed") \
|
||||
range(0, max_intx) \
|
||||
\
|
||||
product(bool, UseCodeAging, true, \
|
||||
"Insert counter to detect warm methods") \
|
||||
|
|
@ -3089,21 +3106,29 @@ public:
|
|||
product(intx, SelfDestructTimer, 0, \
|
||||
"Will cause VM to terminate after a given time (in minutes) " \
|
||||
"(0 means off)") \
|
||||
range(0, max_intx) \
|
||||
\
|
||||
product(intx, MaxJavaStackTraceDepth, 1024, \
|
||||
"The maximum number of lines in the stack trace for Java " \
|
||||
"exceptions (0 means all)") \
|
||||
range(0, max_jint/2) \
|
||||
\
|
||||
/* notice: the max range value here is max_jint, not max_intx */ \
|
||||
/* because of overflow issue */ \
|
||||
NOT_EMBEDDED(diagnostic(intx, GuaranteedSafepointInterval, 1000, \
|
||||
"Guarantee a safepoint (at least) every so many milliseconds " \
|
||||
"(0 means none)")) \
|
||||
NOT_EMBEDDED(range(0, max_jint)) \
|
||||
\
|
||||
EMBEDDED_ONLY(product(intx, GuaranteedSafepointInterval, 0, \
|
||||
"Guarantee a safepoint (at least) every so many milliseconds " \
|
||||
"(0 means none)")) \
|
||||
EMBEDDED_ONLY(range(0, max_jint)) \
|
||||
\
|
||||
product(intx, SafepointTimeoutDelay, 10000, \
|
||||
"Delay in milliseconds for option SafepointTimeout") \
|
||||
LP64_ONLY(range(0, max_intx/MICROUNITS)) \
|
||||
NOT_LP64(range(0, max_intx)) \
|
||||
\
|
||||
product(intx, NmethodSweepActivity, 10, \
|
||||
"Removes cold nmethods from code cache if > 0. Higher values " \
|
||||
|
|
@ -3187,6 +3212,7 @@ public:
|
|||
product(intx, ProfileIntervalsTicks, 100, \
|
||||
"Number of ticks between printing of interval profile " \
|
||||
"(+ProfileIntervals)") \
|
||||
range(0, max_intx) \
|
||||
\
|
||||
notproduct(intx, ScavengeALotInterval, 1, \
|
||||
"Interval between which scavenge will occur with +ScavengeALot") \
|
||||
|
|
@ -3220,14 +3246,17 @@ public:
|
|||
diagnostic(intx, MallocVerifyInterval, 0, \
|
||||
"If non-zero, verify C heap after every N calls to " \
|
||||
"malloc/realloc/free") \
|
||||
range(0, max_intx) \
|
||||
\
|
||||
diagnostic(intx, MallocVerifyStart, 0, \
|
||||
"If non-zero, start verifying C heap after Nth call to " \
|
||||
"malloc/realloc/free") \
|
||||
range(0, max_intx) \
|
||||
\
|
||||
diagnostic(uintx, MallocMaxTestWords, 0, \
|
||||
"If non-zero, maximum number of words that malloc/realloc can " \
|
||||
"allocate (for testing only)") \
|
||||
range(0, max_uintx) \
|
||||
\
|
||||
product(intx, TypeProfileWidth, 2, \
|
||||
"Number of receiver types to record in call/cast profile") \
|
||||
|
|
@ -3459,10 +3488,12 @@ public:
|
|||
product(intx, DeferThrSuspendLoopCount, 4000, \
|
||||
"(Unstable) Number of times to iterate in safepoint loop " \
|
||||
"before blocking VM threads ") \
|
||||
range(-1, max_jint-1) \
|
||||
\
|
||||
product(intx, DeferPollingPageLoopCount, -1, \
|
||||
"(Unsafe,Unstable) Number of iterations in safepoint loop " \
|
||||
"before changing safepoint polling page to RO ") \
|
||||
range(-1, max_jint-1) \
|
||||
\
|
||||
product(intx, SafepointSpinBeforeYield, 2000, "(Unstable)") \
|
||||
range(0, max_intx) \
|
||||
|
|
@ -3477,23 +3508,25 @@ public:
|
|||
/* stack parameters */ \
|
||||
product_pd(intx, StackYellowPages, \
|
||||
"Number of yellow zone (recoverable overflows) pages") \
|
||||
range(1, max_intx) \
|
||||
range(MIN_STACK_YELLOW_PAGES, (DEFAULT_STACK_YELLOW_PAGES+5)) \
|
||||
\
|
||||
product_pd(intx, StackRedPages, \
|
||||
"Number of red zone (unrecoverable overflows) pages") \
|
||||
range(1, max_intx) \
|
||||
range(MIN_STACK_RED_PAGES, (DEFAULT_STACK_RED_PAGES+2)) \
|
||||
\
|
||||
/* greater stack shadow pages can't generate instruction to bang stack */ \
|
||||
product_pd(intx, StackShadowPages, \
|
||||
"Number of shadow zone (for overflow checking) pages " \
|
||||
"this should exceed the depth of the VM and native call stack") \
|
||||
range(1, 50) \
|
||||
range(MIN_STACK_SHADOW_PAGES, (DEFAULT_STACK_SHADOW_PAGES+30)) \
|
||||
\
|
||||
product_pd(intx, ThreadStackSize, \
|
||||
"Thread Stack Size (in Kbytes)") \
|
||||
range(0, max_intx-os::vm_page_size()) \
|
||||
\
|
||||
product_pd(intx, VMThreadStackSize, \
|
||||
"Non-Java Thread Stack Size (in Kbytes)") \
|
||||
range(0, max_intx/(1 * K)) \
|
||||
\
|
||||
product_pd(intx, CompilerThreadStackSize, \
|
||||
"Compiler Thread Stack Size (in Kbytes)") \
|
||||
|
|
@ -3503,7 +3536,8 @@ public:
|
|||
\
|
||||
/* code cache parameters */ \
|
||||
/* ppc64/tiered compilation has large code-entry alignment. */ \
|
||||
develop(uintx, CodeCacheSegmentSize, 64 PPC64_ONLY(+64) NOT_PPC64(TIERED_ONLY(+64)),\
|
||||
develop(uintx, CodeCacheSegmentSize, \
|
||||
64 PPC64_ONLY(+64) NOT_PPC64(TIERED_ONLY(+64)), \
|
||||
"Code cache segment size (in bytes) - smallest unit of " \
|
||||
"allocation") \
|
||||
range(1, 1024) \
|
||||
|
|
@ -3670,6 +3704,7 @@ public:
|
|||
product(intx, VMThreadPriority, -1, \
|
||||
"The native priority at which the VM thread should run " \
|
||||
"(-1 means no change)") \
|
||||
range(-1, 127) \
|
||||
\
|
||||
product(bool, CompilerThreadHintNoPreempt, true, \
|
||||
"(Solaris only) Give compiler threads an extra quanta") \
|
||||
|
|
@ -3679,33 +3714,43 @@ public:
|
|||
\
|
||||
product(intx, JavaPriority1_To_OSPriority, -1, \
|
||||
"Map Java priorities to OS priorities") \
|
||||
range(-1, 127) \
|
||||
\
|
||||
product(intx, JavaPriority2_To_OSPriority, -1, \
|
||||
"Map Java priorities to OS priorities") \
|
||||
range(-1, 127) \
|
||||
\
|
||||
product(intx, JavaPriority3_To_OSPriority, -1, \
|
||||
"Map Java priorities to OS priorities") \
|
||||
range(-1, 127) \
|
||||
\
|
||||
product(intx, JavaPriority4_To_OSPriority, -1, \
|
||||
"Map Java priorities to OS priorities") \
|
||||
range(-1, 127) \
|
||||
\
|
||||
product(intx, JavaPriority5_To_OSPriority, -1, \
|
||||
"Map Java priorities to OS priorities") \
|
||||
range(-1, 127) \
|
||||
\
|
||||
product(intx, JavaPriority6_To_OSPriority, -1, \
|
||||
"Map Java priorities to OS priorities") \
|
||||
range(-1, 127) \
|
||||
\
|
||||
product(intx, JavaPriority7_To_OSPriority, -1, \
|
||||
"Map Java priorities to OS priorities") \
|
||||
range(-1, 127) \
|
||||
\
|
||||
product(intx, JavaPriority8_To_OSPriority, -1, \
|
||||
"Map Java priorities to OS priorities") \
|
||||
range(-1, 127) \
|
||||
\
|
||||
product(intx, JavaPriority9_To_OSPriority, -1, \
|
||||
"Map Java priorities to OS priorities") \
|
||||
range(-1, 127) \
|
||||
\
|
||||
product(intx, JavaPriority10_To_OSPriority,-1, \
|
||||
"Map Java priorities to OS priorities") \
|
||||
range(-1, 127) \
|
||||
\
|
||||
experimental(bool, UseCriticalJavaThreadPriority, false, \
|
||||
"Java thread priority 10 maps to critical scheduling priority") \
|
||||
|
|
@ -3886,6 +3931,7 @@ public:
|
|||
\
|
||||
product(size_t, MaxDirectMemorySize, 0, \
|
||||
"Maximum total size of NIO direct-buffer allocations") \
|
||||
range(0, (size_t)SIZE_MAX) \
|
||||
\
|
||||
/* Flags used for temporary code during development */ \
|
||||
\
|
||||
|
|
@ -3914,6 +3960,8 @@ public:
|
|||
\
|
||||
product(intx, PerfDataSamplingInterval, 50, \
|
||||
"Data sampling interval (in milliseconds)") \
|
||||
range(PeriodicTask::min_interval, max_jint) \
|
||||
constraint(PerfDataSamplingIntervalFunc, AfterErgo) \
|
||||
\
|
||||
develop(bool, PerfTraceDataCreation, false, \
|
||||
"Trace creation of Performance Data Entries") \
|
||||
|
|
@ -3927,9 +3975,11 @@ public:
|
|||
product(intx, PerfDataMemorySize, 64*K, \
|
||||
"Size of performance data memory region. Will be rounded " \
|
||||
"up to a multiple of the native os page size.") \
|
||||
range(128, 32*64*K) \
|
||||
\
|
||||
product(intx, PerfMaxStringConstLength, 1024, \
|
||||
"Maximum PerfStringConstant string length before truncation") \
|
||||
range(32, 32*K) \
|
||||
\
|
||||
product(bool, PerfAllowAtExitRegistration, false, \
|
||||
"Allow registration of atexit() methods") \
|
||||
|
|
@ -3989,10 +4039,10 @@ public:
|
|||
"If PrintSharedArchiveAndExit is true, also print the shared " \
|
||||
"dictionary") \
|
||||
\
|
||||
product(size_t, SharedReadWriteSize, NOT_LP64(12*M) LP64_ONLY(16*M), \
|
||||
product(size_t, SharedReadWriteSize, NOT_LP64(12*M) LP64_ONLY(16*M), \
|
||||
"Size of read-write space for metadata (in bytes)") \
|
||||
\
|
||||
product(size_t, SharedReadOnlySize, NOT_LP64(12*M) LP64_ONLY(16*M), \
|
||||
product(size_t, SharedReadOnlySize, NOT_LP64(12*M) LP64_ONLY(16*M), \
|
||||
"Size of read-only space for metadata (in bytes)") \
|
||||
\
|
||||
product(uintx, SharedMiscDataSize, NOT_LP64(2*M) LP64_ONLY(4*M), \
|
||||
|
|
@ -4007,6 +4057,7 @@ public:
|
|||
\
|
||||
product(uintx, SharedSymbolTableBucketSize, 4, \
|
||||
"Average number of symbols per bucket in shared table") \
|
||||
range(2, 246) \
|
||||
\
|
||||
diagnostic(bool, IgnoreUnverifiableClassesDuringDump, false, \
|
||||
"Do not quit -Xshare:dump even if we encounter unverifiable " \
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue