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8134995: [REDO] GC: implement ranges (optionally constraints) for those flags that have them missing
Add ranges and constraint functions for GC flags. Reviewed-by: kbarrett, jmasa, jwilhelm, gziemski, zmajo
This commit is contained in:
Sangheon Kim
parent
3f29249aee
commit
b112b31e5b
14 changed files with 728 additions and 99 deletions
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@ -23,16 +23,19 @@
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*/
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#include "precompiled.hpp"
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#include "gc/shared/collectedHeap.hpp"
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#include "gc/shared/collectorPolicy.hpp"
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#include "gc/shared/threadLocalAllocBuffer.hpp"
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#include "runtime/arguments.hpp"
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#include "runtime/commandLineFlagConstraintsGC.hpp"
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#include "runtime/commandLineFlagRangeList.hpp"
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#include "runtime/globals.hpp"
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#include "runtime/globals_extension.hpp"
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#include "utilities/defaultStream.hpp"
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#if INCLUDE_ALL_GCS
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#include "gc/g1/g1_globals.hpp"
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#include "gc/g1/heapRegionBounds.inline.hpp"
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#include "gc/parallel/parallelScavengeHeap.hpp"
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#include "gc/shared/plab.hpp"
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#endif // INCLUDE_ALL_GCS
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#ifdef COMPILER1
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@ -42,6 +45,71 @@
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#include "opto/c2_globals.hpp"
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#endif // COMPILER2
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// Some flags that have default values that indicate that the
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// JVM should automatically determine an appropriate value
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// for that flag. In those cases it is only appropriate for the
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// constraint checking to be done if the user has specified the
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// value(s) of the flag(s) on the command line. In the constraint
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// checking functions, FLAG_IS_CMDLINE() is used to check if
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// the flag has been set by the user and so should be checked.
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#if INCLUDE_ALL_GCS
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static Flag::Error ParallelGCThreadsAndCMSWorkQueueDrainThreshold(uint threads, uintx threshold, bool verbose) {
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// CMSWorkQueueDrainThreshold is verified to be less than max_juint
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if (UseConcMarkSweepGC && (threads > (uint)(max_jint / (uint)threshold))) {
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CommandLineError::print(verbose,
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"ParallelGCThreads (" UINT32_FORMAT ") or CMSWorkQueueDrainThreshold ("
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UINTX_FORMAT ") is too large\n",
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threads, threshold);
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return Flag::VIOLATES_CONSTRAINT;
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}
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return Flag::SUCCESS;
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}
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#endif
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// As ParallelGCThreads differs among GC modes, we need constraint function.
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Flag::Error ParallelGCThreadsConstraintFunc(uint value, bool verbose) {
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Flag::Error status = Flag::SUCCESS;
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#if INCLUDE_ALL_GCS
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// Parallel GC passes ParallelGCThreads when creating GrowableArray as 'int' type parameter.
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// So can't exceed with "max_jint"
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if (UseParallelGC && (value > (uint)max_jint)) {
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CommandLineError::print(verbose,
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"ParallelGCThreads (" UINT32_FORMAT ") must be "
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"less than or equal to " UINT32_FORMAT " for Parallel GC\n",
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value, max_jint);
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return Flag::VIOLATES_CONSTRAINT;
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}
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// To avoid overflow at ParScanClosure::do_oop_work.
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if (UseConcMarkSweepGC && (value > (max_jint / 10))) {
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CommandLineError::print(verbose,
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"ParallelGCThreads (" UINT32_FORMAT ") must be "
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"less than or equal to " UINT32_FORMAT " for CMS GC\n",
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value, (max_jint / 10));
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return Flag::VIOLATES_CONSTRAINT;
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}
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status = ParallelGCThreadsAndCMSWorkQueueDrainThreshold(value, CMSWorkQueueDrainThreshold, verbose);
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#endif
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return status;
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}
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// As ConcGCThreads should be smaller than ParallelGCThreads,
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// we need constraint function.
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Flag::Error ConcGCThreadsConstraintFunc(uint value, bool verbose) {
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#if INCLUDE_ALL_GCS
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// CMS and G1 GCs use ConcGCThreads.
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if ((UseConcMarkSweepGC || UseG1GC) && (value > ParallelGCThreads)) {
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CommandLineError::print(verbose,
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"ConcGCThreads (" UINT32_FORMAT ") must be "
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"less than or equal to ParallelGCThreads (" UINT32_FORMAT ")\n",
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value, ParallelGCThreads);
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return Flag::VIOLATES_CONSTRAINT;
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}
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#endif
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return Flag::SUCCESS;
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}
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static Flag::Error MinPLABSizeBounds(const char* name, size_t value, bool verbose) {
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#if INCLUDE_ALL_GCS
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if ((UseConcMarkSweepGC || UseG1GC) && (value < PLAB::min_size())) {
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@ -69,16 +137,40 @@ static Flag::Error MaxPLABSizeBounds(const char* name, size_t value, bool verbos
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}
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static Flag::Error MinMaxPLABSizeBounds(const char* name, size_t value, bool verbose) {
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if (MinPLABSizeBounds(name, value, verbose) == Flag::SUCCESS) {
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Flag::Error status = MinPLABSizeBounds(name, value, verbose);
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if (status == Flag::SUCCESS) {
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return MaxPLABSizeBounds(name, value, verbose);
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}
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return Flag::VIOLATES_CONSTRAINT;
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return status;
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}
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Flag::Error YoungPLABSizeConstraintFunc(size_t value, bool verbose) {
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return MinMaxPLABSizeBounds("YoungPLABSize", value, verbose);
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}
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Flag::Error OldPLABSizeConstraintFunc(size_t value, bool verbose) {
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Flag::Error status = Flag::SUCCESS;
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#if INCLUDE_ALL_GCS
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if (UseConcMarkSweepGC) {
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if (value == 0) {
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CommandLineError::print(verbose,
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"OldPLABSize (" SIZE_FORMAT ") must be greater than 0",
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value);
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return Flag::VIOLATES_CONSTRAINT;
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}
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// For CMS, OldPLABSize is the number of free blocks of a given size that are used when
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// replenishing the local per-worker free list caches.
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// For more details, please refer to Arguments::set_cms_and_parnew_gc_flags().
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status = MaxPLABSizeBounds("OldPLABSize", value, verbose);
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} else {
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status = MinMaxPLABSizeBounds("OldPLABSize", value, verbose);
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}
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#endif
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return status;
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}
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Flag::Error MinHeapFreeRatioConstraintFunc(uintx value, bool verbose) {
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if (value > MaxHeapFreeRatio) {
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CommandLineError::print(verbose,
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@ -103,6 +195,23 @@ Flag::Error MaxHeapFreeRatioConstraintFunc(uintx value, bool verbose) {
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}
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}
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static Flag::Error CheckMaxHeapSizeAndSoftRefLRUPolicyMSPerMB(size_t maxHeap, intx softRef, bool verbose) {
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if ((softRef > 0) && ((maxHeap / M) > (max_uintx / softRef))) {
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CommandLineError::print(verbose,
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"Desired lifetime of SoftReferences cannot be expressed correctly. "
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"MaxHeapSize (" SIZE_FORMAT ") or SoftRefLRUPolicyMSPerMB "
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"(" INTX_FORMAT ") is too large\n",
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maxHeap, softRef);
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return Flag::VIOLATES_CONSTRAINT;
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} else {
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return Flag::SUCCESS;
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}
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}
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Flag::Error SoftRefLRUPolicyMSPerMBConstraintFunc(intx value, bool verbose) {
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return CheckMaxHeapSizeAndSoftRefLRUPolicyMSPerMB(MaxHeapSize, value, verbose);
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}
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Flag::Error MinMetaspaceFreeRatioConstraintFunc(uintx value, bool verbose) {
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if (value > MaxMetaspaceFreeRatio) {
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CommandLineError::print(verbose,
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@ -127,45 +236,111 @@ Flag::Error MaxMetaspaceFreeRatioConstraintFunc(uintx value, bool verbose) {
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}
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}
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// GC workaround for "-XX:+UseConcMarkSweepGC"
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// which sets InitialTenuringThreshold to 7 but leaves MaxTenuringThreshold remaining at 6
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// and therefore would invalidate the constraint
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#define UseConcMarkSweepGCWorkaroundIfNeeded(initial, max) { \
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if ((initial == 7) && (max == 6)) { \
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return Flag::SUCCESS; \
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} \
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}
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Flag::Error InitialTenuringThresholdConstraintFunc(uintx value, bool verbose) {
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UseConcMarkSweepGCWorkaroundIfNeeded(value, MaxTenuringThreshold);
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if (value > MaxTenuringThreshold) {
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CommandLineError::print(verbose,
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"InitialTenuringThreshold (" UINTX_FORMAT ") must be "
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"less than or equal to MaxTenuringThreshold (" UINTX_FORMAT ")\n",
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value, MaxTenuringThreshold);
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return Flag::VIOLATES_CONSTRAINT;
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} else {
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return Flag::SUCCESS;
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#if INCLUDE_ALL_GCS
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// InitialTenuringThreshold is only used for ParallelGC.
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if (UseParallelGC && (value > MaxTenuringThreshold)) {
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CommandLineError::print(verbose,
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"InitialTenuringThreshold (" UINTX_FORMAT ") must be "
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"less than or equal to MaxTenuringThreshold (" UINTX_FORMAT ")\n",
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value, MaxTenuringThreshold);
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return Flag::VIOLATES_CONSTRAINT;
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}
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#endif
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return Flag::SUCCESS;
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}
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Flag::Error MaxTenuringThresholdConstraintFunc(uintx value, bool verbose) {
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UseConcMarkSweepGCWorkaroundIfNeeded(InitialTenuringThreshold, value);
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if (value < InitialTenuringThreshold) {
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#if INCLUDE_ALL_GCS
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// As only ParallelGC uses InitialTenuringThreshold,
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// we don't need to compare InitialTenuringThreshold with MaxTenuringThreshold.
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if (UseParallelGC && (value < InitialTenuringThreshold)) {
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CommandLineError::print(verbose,
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"MaxTenuringThreshold (" UINTX_FORMAT ") must be "
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"greater than or equal to InitialTenuringThreshold (" UINTX_FORMAT ")\n",
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value, InitialTenuringThreshold);
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return Flag::VIOLATES_CONSTRAINT;
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}
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#endif
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// MaxTenuringThreshold=0 means NeverTenure=false && AlwaysTenure=true
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if ((value == 0) && (NeverTenure || !AlwaysTenure)) {
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CommandLineError::print(verbose,
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"MaxTenuringThreshold (0) should match to NeverTenure=false "
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"&& AlwaysTenure=true. But we have NeverTenure=%s "
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"AlwaysTenure=%s\n",
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NeverTenure ? "true" : "false",
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AlwaysTenure ? "true" : "false");
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return Flag::VIOLATES_CONSTRAINT;
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}
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return Flag::SUCCESS;
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}
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#if INCLUDE_ALL_GCS
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Flag::Error G1RSetRegionEntriesConstraintFunc(intx value, bool verbose) {
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if (!UseG1GC) return Flag::SUCCESS;
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// Default value of G1RSetRegionEntries=0 means will be set ergonomically.
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// Minimum value is 1.
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if (FLAG_IS_CMDLINE(G1RSetRegionEntries) && (value < 1)) {
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CommandLineError::print(verbose,
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"G1RSetRegionEntries (" INTX_FORMAT ") must be "
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"greater than or equal to 1\n",
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value);
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return Flag::VIOLATES_CONSTRAINT;
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} else {
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return Flag::SUCCESS;
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}
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}
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Flag::Error G1RSetSparseRegionEntriesConstraintFunc(intx value, bool verbose) {
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if (!UseG1GC) return Flag::SUCCESS;
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// Default value of G1RSetSparseRegionEntries=0 means will be set ergonomically.
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// Minimum value is 1.
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if (FLAG_IS_CMDLINE(G1RSetSparseRegionEntries) && (value < 1)) {
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CommandLineError::print(verbose,
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"G1RSetSparseRegionEntries (" INTX_FORMAT ") must be "
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"greater than or equal to 1\n",
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value);
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return Flag::VIOLATES_CONSTRAINT;
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} else {
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return Flag::SUCCESS;
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}
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}
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Flag::Error G1YoungSurvRateNumRegionsSummaryConstraintFunc(intx value, bool verbose) {
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if (!UseG1GC) return Flag::SUCCESS;
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if (value > (intx)HeapRegionBounds::target_number()) {
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CommandLineError::print(verbose,
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"G1YoungSurvRateNumRegionsSummary (" INTX_FORMAT ") must be "
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"less than or equal to region count (" SIZE_FORMAT ")\n",
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value, HeapRegionBounds::target_number());
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return Flag::VIOLATES_CONSTRAINT;
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} else {
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return Flag::SUCCESS;
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}
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}
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Flag::Error G1HeapRegionSizeConstraintFunc(size_t value, bool verbose) {
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if (!UseG1GC) return Flag::SUCCESS;
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// Default value of G1HeapRegionSize=0 means will be set ergonomically.
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if (FLAG_IS_CMDLINE(G1HeapRegionSize) && (value < HeapRegionBounds::min_size())) {
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CommandLineError::print(verbose,
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"G1HeapRegionSize (" SIZE_FORMAT ") must be "
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"greater than or equal to ergonomic heap region minimum size\n",
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value);
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return Flag::VIOLATES_CONSTRAINT;
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} else {
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return Flag::SUCCESS;
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}
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}
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#if INCLUDE_ALL_GCS
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Flag::Error G1NewSizePercentConstraintFunc(uintx value, bool verbose) {
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if (!UseG1GC) return Flag::SUCCESS;
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if (value > G1MaxNewSizePercent) {
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CommandLineError::print(verbose,
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"G1NewSizePercent (" UINTX_FORMAT ") must be "
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@ -178,6 +353,8 @@ Flag::Error G1NewSizePercentConstraintFunc(uintx value, bool verbose) {
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}
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Flag::Error G1MaxNewSizePercentConstraintFunc(uintx value, bool verbose) {
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if (!UseG1GC) return Flag::SUCCESS;
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if (value < G1NewSizePercent) {
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CommandLineError::print(verbose,
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"G1MaxNewSizePercent (" UINTX_FORMAT ") must be "
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@ -188,15 +365,56 @@ Flag::Error G1MaxNewSizePercentConstraintFunc(uintx value, bool verbose) {
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return Flag::SUCCESS;
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}
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}
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#endif // INCLUDE_ALL_GCS
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Flag::Error CMSOldPLABMinConstraintFunc(size_t value, bool verbose) {
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if (value > CMSOldPLABMax) {
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Flag::Error ParGCStridesPerThreadConstraintFunc(uintx value, bool verbose) {
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#if INCLUDE_ALL_GCS
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if (UseConcMarkSweepGC && (value > ((uintx)max_jint / (uintx)ParallelGCThreads))) {
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CommandLineError::print(verbose,
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"CMSOldPLABMin (" SIZE_FORMAT ") must be "
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"less than or equal to CMSOldPLABMax (" SIZE_FORMAT ")\n",
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value, CMSOldPLABMax);
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"ParGCStridesPerThread (" UINTX_FORMAT ") must be "
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"less than or equal to ergonomic maximum (" UINTX_FORMAT ")\n",
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value, ((uintx)max_jint / (uintx)ParallelGCThreads));
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return Flag::VIOLATES_CONSTRAINT;
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}
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#endif
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return Flag::SUCCESS;
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}
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Flag::Error CMSOldPLABMinConstraintFunc(size_t value, bool verbose) {
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Flag::Error status = Flag::SUCCESS;
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#if INCLUDE_ALL_GCS
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if (UseConcMarkSweepGC) {
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if (value > CMSOldPLABMax) {
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CommandLineError::print(verbose,
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"CMSOldPLABMin (" SIZE_FORMAT ") must be "
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"less than or equal to CMSOldPLABMax (" SIZE_FORMAT ")\n",
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value, CMSOldPLABMax);
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return Flag::VIOLATES_CONSTRAINT;
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}
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status = MaxPLABSizeBounds("CMSOldPLABMin", value, verbose);
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}
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#endif
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return status;
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}
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Flag::Error CMSOldPLABMaxConstraintFunc(size_t value, bool verbose) {
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Flag::Error status = Flag::SUCCESS;
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#if INCLUDE_ALL_GCS
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if (UseConcMarkSweepGC) {
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status = MaxPLABSizeBounds("CMSOldPLABMax", value, verbose);
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}
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#endif
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return status;
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}
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Flag::Error MarkStackSizeConstraintFunc(size_t value, bool verbose) {
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if (value > MarkStackSizeMax) {
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CommandLineError::print(verbose,
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"MarkStackSize (" SIZE_FORMAT ") must be "
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"less than or equal to MarkStackSizeMax (" SIZE_FORMAT ")\n",
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value, MarkStackSizeMax);
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return Flag::VIOLATES_CONSTRAINT;
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} else {
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return Flag::SUCCESS;
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@ -204,23 +422,212 @@ Flag::Error CMSOldPLABMinConstraintFunc(size_t value, bool verbose) {
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}
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Flag::Error CMSPrecleanDenominatorConstraintFunc(uintx value, bool verbose) {
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if (value <= CMSPrecleanNumerator) {
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#if INCLUDE_ALL_GCS
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if (UseConcMarkSweepGC && (value <= CMSPrecleanNumerator)) {
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CommandLineError::print(verbose,
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"CMSPrecleanDenominator (" UINTX_FORMAT ") must be "
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"strickly greater than CMSPrecleanNumerator (" UINTX_FORMAT ")\n",
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value, CMSPrecleanNumerator);
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return Flag::VIOLATES_CONSTRAINT;
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}
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#endif
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return Flag::SUCCESS;
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}
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Flag::Error CMSPrecleanNumeratorConstraintFunc(uintx value, bool verbose) {
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#if INCLUDE_ALL_GCS
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if (UseConcMarkSweepGC && (value >= CMSPrecleanDenominator)) {
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CommandLineError::print(verbose,
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"CMSPrecleanNumerator (" UINTX_FORMAT ") must be "
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"less than CMSPrecleanDenominator (" UINTX_FORMAT ")\n",
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value, CMSPrecleanDenominator);
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return Flag::VIOLATES_CONSTRAINT;
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}
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#endif
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return Flag::SUCCESS;
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}
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Flag::Error CMSWorkQueueDrainThresholdConstraintFunc(uintx value, bool verbose) {
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#if INCLUDE_ALL_GCS
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if (UseConcMarkSweepGC) {
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return ParallelGCThreadsAndCMSWorkQueueDrainThreshold(ParallelGCThreads, value, verbose);
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}
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#endif
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return Flag::SUCCESS;
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}
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Flag::Error MaxGCPauseMillisConstraintFunc(uintx value, bool verbose) {
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#if INCLUDE_ALL_GCS
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if (UseG1GC && FLAG_IS_CMDLINE(MaxGCPauseMillis) && (value >= GCPauseIntervalMillis)) {
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CommandLineError::print(verbose,
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"MaxGCPauseMillis (" UINTX_FORMAT ") must be "
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"less than GCPauseIntervalMillis (" UINTX_FORMAT ")\n",
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value, GCPauseIntervalMillis);
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return Flag::VIOLATES_CONSTRAINT;
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}
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#endif
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return Flag::SUCCESS;
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}
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Flag::Error GCPauseIntervalMillisConstraintFunc(uintx value, bool verbose) {
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#if INCLUDE_ALL_GCS
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if (UseG1GC) {
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if (FLAG_IS_CMDLINE(GCPauseIntervalMillis)) {
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if (value < 1) {
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CommandLineError::print(verbose,
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"GCPauseIntervalMillis (" UINTX_FORMAT ") must be "
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"greater than or equal to 1\n",
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value);
|
||||
return Flag::VIOLATES_CONSTRAINT;
|
||||
}
|
||||
if (value <= MaxGCPauseMillis) {
|
||||
CommandLineError::print(verbose,
|
||||
"GCPauseIntervalMillis (" UINTX_FORMAT ") must be "
|
||||
"greater than MaxGCPauseMillis (" UINTX_FORMAT ")\n",
|
||||
value, MaxGCPauseMillis);
|
||||
return Flag::VIOLATES_CONSTRAINT;
|
||||
}
|
||||
}
|
||||
}
|
||||
#endif
|
||||
return Flag::SUCCESS;
|
||||
}
|
||||
|
||||
Flag::Error InitialBootClassLoaderMetaspaceSizeConstraintFunc(size_t value, bool verbose) {
|
||||
size_t aligned_max = (size_t)align_size_down(max_uintx/2, Metaspace::reserve_alignment_words());
|
||||
if (value > aligned_max) {
|
||||
CommandLineError::print(verbose,
|
||||
"InitialBootClassLoaderMetaspaceSize (" SIZE_FORMAT ") must be "
|
||||
"less than or equal to aligned maximum value (" SIZE_FORMAT ")\n",
|
||||
value, aligned_max);
|
||||
return Flag::VIOLATES_CONSTRAINT;
|
||||
}
|
||||
return Flag::SUCCESS;
|
||||
}
|
||||
|
||||
static Flag::Error MaxSizeForHeapAlignment(const char* name, size_t value, bool verbose) {
|
||||
// For G1 GC, we don't know until G1CollectorPolicy is created.
|
||||
size_t heap_alignment;
|
||||
|
||||
#if INCLUDE_ALL_GCS
|
||||
if (UseG1GC) {
|
||||
heap_alignment = HeapRegionBounds::max_size();
|
||||
} else
|
||||
#endif
|
||||
{
|
||||
heap_alignment = CollectorPolicy::compute_heap_alignment();
|
||||
}
|
||||
|
||||
// Not to overflow 'align_size_up(value, _heap_alignment) used from CollectorPolicy::initialize_flags()'.
|
||||
size_t aligned_max = ((max_uintx - heap_alignment) & ~(heap_alignment-1));
|
||||
if (value > aligned_max) {
|
||||
CommandLineError::print(verbose,
|
||||
"%s (" SIZE_FORMAT ") must be "
|
||||
"less than or equal to aligned maximum value (" SIZE_FORMAT ")\n",
|
||||
name, value, aligned_max);
|
||||
return Flag::VIOLATES_CONSTRAINT;
|
||||
}
|
||||
return Flag::SUCCESS;
|
||||
}
|
||||
|
||||
Flag::Error InitialHeapSizeConstraintFunc(size_t value, bool verbose) {
|
||||
return MaxSizeForHeapAlignment("InitialHeapSize", value, verbose);
|
||||
}
|
||||
|
||||
Flag::Error MaxHeapSizeConstraintFunc(size_t value, bool verbose) {
|
||||
Flag::Error status = MaxSizeForHeapAlignment("MaxHeapSize", value, verbose);
|
||||
|
||||
if (status == Flag::SUCCESS) {
|
||||
status = CheckMaxHeapSizeAndSoftRefLRUPolicyMSPerMB(value, SoftRefLRUPolicyMSPerMB, verbose);
|
||||
}
|
||||
return status;
|
||||
}
|
||||
|
||||
Flag::Error NewSizeConstraintFunc(size_t value, bool verbose) {
|
||||
#ifdef _LP64
|
||||
#if INCLUDE_ALL_GCS
|
||||
// Overflow would happen for uint type variable of YoungGenSizer::_min_desired_young_length
|
||||
// when the value to be assigned exceeds uint range.
|
||||
// i.e. result of '(uint)(NewSize / region size(1~32MB))'
|
||||
// So maximum of NewSize should be 'max_juint * 1M'
|
||||
if (UseG1GC && (value > (max_juint * 1 * M))) {
|
||||
CommandLineError::print(verbose,
|
||||
"NewSize (" SIZE_FORMAT ") must be less than ergonomic maximum value\n",
|
||||
value);
|
||||
return Flag::VIOLATES_CONSTRAINT;
|
||||
}
|
||||
#endif // INCLUDE_ALL_GCS
|
||||
#endif // _LP64
|
||||
return Flag::SUCCESS;
|
||||
}
|
||||
|
||||
Flag::Error MinTLABSizeConstraintFunc(size_t value, bool verbose) {
|
||||
// At least, alignment reserve area is needed.
|
||||
if (value < ThreadLocalAllocBuffer::alignment_reserve_in_bytes()) {
|
||||
CommandLineError::print(verbose,
|
||||
"MinTLABSize (" SIZE_FORMAT ") must be "
|
||||
"greater than or equal to reserved area in TLAB (" SIZE_FORMAT ")\n",
|
||||
value, ThreadLocalAllocBuffer::alignment_reserve_in_bytes());
|
||||
return Flag::VIOLATES_CONSTRAINT;
|
||||
} else {
|
||||
return Flag::SUCCESS;
|
||||
}
|
||||
}
|
||||
|
||||
Flag::Error CMSPrecleanNumeratorConstraintFunc(uintx value, bool verbose) {
|
||||
if (value > (CMSPrecleanDenominator - 1)) {
|
||||
Flag::Error TLABSizeConstraintFunc(size_t value, bool verbose) {
|
||||
// Skip for default value of zero which means set ergonomically.
|
||||
if (FLAG_IS_CMDLINE(TLABSize)) {
|
||||
if (value < MinTLABSize) {
|
||||
CommandLineError::print(verbose,
|
||||
"TLABSize (" SIZE_FORMAT ") must be "
|
||||
"greater than or equal to MinTLABSize (" SIZE_FORMAT ")\n",
|
||||
value, MinTLABSize);
|
||||
return Flag::VIOLATES_CONSTRAINT;
|
||||
}
|
||||
if (value > (ThreadLocalAllocBuffer::max_size() * HeapWordSize)) {
|
||||
CommandLineError::print(verbose,
|
||||
"TLABSize (" SIZE_FORMAT ") must be "
|
||||
"less than or equal to ergonomic TLAB maximum size (" SIZE_FORMAT ")\n",
|
||||
value, (ThreadLocalAllocBuffer::max_size() * HeapWordSize));
|
||||
return Flag::VIOLATES_CONSTRAINT;
|
||||
}
|
||||
}
|
||||
return Flag::SUCCESS;
|
||||
}
|
||||
|
||||
Flag::Error SurvivorRatioConstraintFunc(uintx value, bool verbose) {
|
||||
if (FLAG_IS_CMDLINE(SurvivorRatio) &&
|
||||
(value > (MaxHeapSize / Universe::heap()->collector_policy()->space_alignment()))) {
|
||||
CommandLineError::print(verbose,
|
||||
"CMSPrecleanNumerator (" UINTX_FORMAT ") must be "
|
||||
"less than or equal to CMSPrecleanDenominator - 1 (" UINTX_FORMAT ")\n",
|
||||
value, CMSPrecleanDenominator - 1);
|
||||
"SurvivorRatio (" UINTX_FORMAT ") must be "
|
||||
"less than or equal to ergonomic SurvivorRatio maximum (" SIZE_FORMAT ")\n",
|
||||
value,
|
||||
(MaxHeapSize / Universe::heap()->collector_policy()->space_alignment()));
|
||||
return Flag::VIOLATES_CONSTRAINT;
|
||||
} else {
|
||||
return Flag::SUCCESS;
|
||||
}
|
||||
}
|
||||
|
||||
Flag::Error MetaspaceSizeConstraintFunc(size_t value, bool verbose) {
|
||||
if (value > MaxMetaspaceSize) {
|
||||
CommandLineError::print(verbose,
|
||||
"MetaspaceSize (" SIZE_FORMAT ") must be "
|
||||
"less than or equal to MaxMetaspaceSize (" SIZE_FORMAT ")\n",
|
||||
value, MaxMetaspaceSize);
|
||||
return Flag::VIOLATES_CONSTRAINT;
|
||||
} else {
|
||||
return Flag::SUCCESS;
|
||||
}
|
||||
}
|
||||
|
||||
Flag::Error MaxMetaspaceSizeConstraintFunc(size_t value, bool verbose) {
|
||||
if (value < MetaspaceSize) {
|
||||
CommandLineError::print(verbose,
|
||||
"MaxMetaspaceSize (" SIZE_FORMAT ") must be "
|
||||
"greater than or equal to MetaspaceSize (" SIZE_FORMAT ")\n",
|
||||
value, MaxMetaspaceSize);
|
||||
return Flag::VIOLATES_CONSTRAINT;
|
||||
} else {
|
||||
return Flag::SUCCESS;
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue