jdk-sandbox: comparison hotspot/src/share/vm/runtime/commandLineFlagConstraintsGC.cpp

equal deleted inserted replaced

-:2083f82acec8
+:c56850e328fc
 * questions.
 *
 */
 #include "precompiled.hpp"
+#include "gc/shared/collectedHeap.hpp"
+#include "gc/shared/collectorPolicy.hpp"
+#include "gc/shared/threadLocalAllocBuffer.hpp"
 #include "runtime/arguments.hpp"
 #include "runtime/commandLineFlagConstraintsGC.hpp"
 #include "runtime/commandLineFlagRangeList.hpp"
 #include "runtime/globals.hpp"
+#include "runtime/globals_extension.hpp"
 #include "utilities/defaultStream.hpp"
 #if INCLUDE_ALL_GCS
 #include "gc/g1/g1_globals.hpp"
 #include "gc/g1/heapRegionBounds.inline.hpp"
-#include "gc/parallel/parallelScavengeHeap.hpp"
 #include "gc/shared/plab.hpp"
 #endif // INCLUDE_ALL_GCS
 #ifdef COMPILER1
 #include "c1/c1_globals.hpp"
 #endif // COMPILER1
 #ifdef COMPILER2
 #include "opto/c2_globals.hpp"
 #endif // COMPILER2
+// Some flags that have default values that indicate that the
+// JVM should automatically determine an appropriate value
+// for that flag.  In those cases it is only appropriate for the
+// constraint checking to be done if the user has specified the
+// value(s) of the flag(s) on the command line.  In the constraint
+// checking functions,  FLAG_IS_CMDLINE() is used to check if
+// the flag has been set by the user and so should be checked.
+#if INCLUDE_ALL_GCS
+static Flag::Error ParallelGCThreadsAndCMSWorkQueueDrainThreshold(uint threads, uintx threshold, bool verbose) {
+// CMSWorkQueueDrainThreshold is verified to be less than max_juint
+if (UseConcMarkSweepGC && (threads > (uint)(max_jint / (uint)threshold))) {
+CommandLineError::print(verbose,
+"ParallelGCThreads (" UINT32_FORMAT ") or CMSWorkQueueDrainThreshold ("
+UINTX_FORMAT ") is too large\n",
+threads, threshold);
+return Flag::VIOLATES_CONSTRAINT;
+}
+return Flag::SUCCESS;
+}
+#endif
+// As ParallelGCThreads differs among GC modes, we need constraint function.
+Flag::Error ParallelGCThreadsConstraintFunc(uint value, bool verbose) {
+Flag::Error status = Flag::SUCCESS;
+#if INCLUDE_ALL_GCS
+// Parallel GC passes ParallelGCThreads when creating GrowableArray as 'int' type parameter.
+// So can't exceed with "max_jint"
+if (UseParallelGC && (value > (uint)max_jint)) {
+CommandLineError::print(verbose,
+"ParallelGCThreads (" UINT32_FORMAT ") must be "
+"less than or equal to " UINT32_FORMAT " for Parallel GC\n",
+value, max_jint);
+return Flag::VIOLATES_CONSTRAINT;
+}
+// To avoid overflow at ParScanClosure::do_oop_work.
+if (UseConcMarkSweepGC && (value > (max_jint / 10))) {
+CommandLineError::print(verbose,
+"ParallelGCThreads (" UINT32_FORMAT ") must be "
+"less than or equal to " UINT32_FORMAT " for CMS GC\n",
+value, (max_jint / 10));
+return Flag::VIOLATES_CONSTRAINT;
+}
+status = ParallelGCThreadsAndCMSWorkQueueDrainThreshold(value, CMSWorkQueueDrainThreshold, verbose);
+#endif
+return status;
+}
+// As ConcGCThreads should be smaller than ParallelGCThreads,
+// we need constraint function.
+Flag::Error ConcGCThreadsConstraintFunc(uint value, bool verbose) {
+#if INCLUDE_ALL_GCS
+// CMS and G1 GCs use ConcGCThreads.
+if ((UseConcMarkSweepGC || UseG1GC) && (value > ParallelGCThreads)) {
+CommandLineError::print(verbose,
+"ConcGCThreads (" UINT32_FORMAT ") must be "
+"less than or equal to ParallelGCThreads (" UINT32_FORMAT ")\n",
+value, ParallelGCThreads);
+return Flag::VIOLATES_CONSTRAINT;
+}
+#endif
+return Flag::SUCCESS;
+}
 static Flag::Error MinPLABSizeBounds(const char* name, size_t value, bool verbose) {
 #if INCLUDE_ALL_GCS
 if ((UseConcMarkSweepGC || UseG1GC) && (value < PLAB::min_size())) {
 CommandLineError::print(verbose,
 "%s (" SIZE_FORMAT ") must be "
 #endif // INCLUDE_ALL_GCS
 return Flag::SUCCESS;
 }
 static Flag::Error MinMaxPLABSizeBounds(const char* name, size_t value, bool verbose) {
-if (MinPLABSizeBounds(name, value, verbose) == Flag::SUCCESS) {
+Flag::Error status = MinPLABSizeBounds(name, value, verbose);
+if (status == Flag::SUCCESS) {
 return MaxPLABSizeBounds(name, value, verbose);
 }
-return Flag::VIOLATES_CONSTRAINT;
+return status;
 }
 Flag::Error YoungPLABSizeConstraintFunc(size_t value, bool verbose) {
 return MinMaxPLABSizeBounds("YoungPLABSize", value, verbose);
+}
+Flag::Error OldPLABSizeConstraintFunc(size_t value, bool verbose) {
+Flag::Error status = Flag::SUCCESS;
+#if INCLUDE_ALL_GCS
+if (UseConcMarkSweepGC) {
+if (value == 0) {
+CommandLineError::print(verbose,
+"OldPLABSize (" SIZE_FORMAT ") must be greater than 0",
+value);
+return Flag::VIOLATES_CONSTRAINT;
+}
+// For CMS, OldPLABSize is the number of free blocks of a given size that are used when
+// replenishing the local per-worker free list caches.
+// For more details, please refer to Arguments::set_cms_and_parnew_gc_flags().
+status = MaxPLABSizeBounds("OldPLABSize", value, verbose);
+} else {
+status = MinMaxPLABSizeBounds("OldPLABSize", value, verbose);
+}
+#endif
+return status;
 }
 Flag::Error MinHeapFreeRatioConstraintFunc(uintx value, bool verbose) {
 if (value > MaxHeapFreeRatio) {
 CommandLineError::print(verbose,
 } else {
 return Flag::SUCCESS;
 }
 }
+static Flag::Error CheckMaxHeapSizeAndSoftRefLRUPolicyMSPerMB(size_t maxHeap, intx softRef, bool verbose) {
+if ((softRef > 0) && ((maxHeap / M) > (max_uintx / softRef))) {
+CommandLineError::print(verbose,
+"Desired lifetime of SoftReferences cannot be expressed correctly. "
+"MaxHeapSize (" SIZE_FORMAT ") or SoftRefLRUPolicyMSPerMB "
+"(" INTX_FORMAT ") is too large\n",
+maxHeap, softRef);
+return Flag::VIOLATES_CONSTRAINT;
+} else {
+return Flag::SUCCESS;
+}
+}
+Flag::Error SoftRefLRUPolicyMSPerMBConstraintFunc(intx value, bool verbose) {
+return CheckMaxHeapSizeAndSoftRefLRUPolicyMSPerMB(MaxHeapSize, value, verbose);
+}
 Flag::Error MinMetaspaceFreeRatioConstraintFunc(uintx value, bool verbose) {
 if (value > MaxMetaspaceFreeRatio) {
 CommandLineError::print(verbose,
 "MinMetaspaceFreeRatio (" UINTX_FORMAT ") must be "
 "less than or equal to MaxMetaspaceFreeRatio (" UINTX_FORMAT ")\n",
 } else {
 return Flag::SUCCESS;
 }
 }
-// GC workaround for "-XX:+UseConcMarkSweepGC"
-// which sets InitialTenuringThreshold to 7 but leaves MaxTenuringThreshold remaining at 6
-// and therefore would invalidate the constraint
-#define UseConcMarkSweepGCWorkaroundIfNeeded(initial, max) { \
-if ((initial == 7) && (max == 6)) { \
-return Flag::SUCCESS; \
-} \
-}
 Flag::Error InitialTenuringThresholdConstraintFunc(uintx value, bool verbose) {
-UseConcMarkSweepGCWorkaroundIfNeeded(value, MaxTenuringThreshold);
+#if INCLUDE_ALL_GCS
+// InitialTenuringThreshold is only used for ParallelGC.
-if (value > MaxTenuringThreshold) {
+if (UseParallelGC && (value > MaxTenuringThreshold)) {
 CommandLineError::print(verbose,
 "InitialTenuringThreshold (" UINTX_FORMAT ") must be "
 "less than or equal to MaxTenuringThreshold (" UINTX_FORMAT ")\n",
 value, MaxTenuringThreshold);
 return Flag::VIOLATES_CONSTRAINT;
-} else {
+}
-return Flag::SUCCESS;
+#endif
-}
+return Flag::SUCCESS;
 }
 Flag::Error MaxTenuringThresholdConstraintFunc(uintx value, bool verbose) {
-UseConcMarkSweepGCWorkaroundIfNeeded(InitialTenuringThreshold, value);
+#if INCLUDE_ALL_GCS
+// As only ParallelGC uses InitialTenuringThreshold,
-if (value < InitialTenuringThreshold) {
+// we don't need to compare InitialTenuringThreshold with MaxTenuringThreshold.
+if (UseParallelGC && (value < InitialTenuringThreshold)) {
 CommandLineError::print(verbose,
 "MaxTenuringThreshold (" UINTX_FORMAT ") must be "
 "greater than or equal to InitialTenuringThreshold (" UINTX_FORMAT ")\n",
 value, InitialTenuringThreshold);
 return Flag::VIOLATES_CONSTRAINT;
-} else {
+}
-return Flag::SUCCESS;
+#endif
-}
-}
+// MaxTenuringThreshold=0 means NeverTenure=false && AlwaysTenure=true
+if ((value == 0) && (NeverTenure || !AlwaysTenure)) {
-#if INCLUDE_ALL_GCS
+CommandLineError::print(verbose,
+"MaxTenuringThreshold (0) should match to NeverTenure=false "
+"&& AlwaysTenure=true. But we have NeverTenure=%s "
+"AlwaysTenure=%s\n",
+NeverTenure ? "true" : "false",
+AlwaysTenure ? "true" : "false");
+return Flag::VIOLATES_CONSTRAINT;
+}
+return Flag::SUCCESS;
+}
+#if INCLUDE_ALL_GCS
+Flag::Error G1RSetRegionEntriesConstraintFunc(intx value, bool verbose) {
+if (!UseG1GC) return Flag::SUCCESS;
+// Default value of G1RSetRegionEntries=0 means will be set ergonomically.
+// Minimum value is 1.
+if (FLAG_IS_CMDLINE(G1RSetRegionEntries) && (value < 1)) {
+CommandLineError::print(verbose,
+"G1RSetRegionEntries (" INTX_FORMAT ") must be "
+"greater than or equal to 1\n",
+value);
+return Flag::VIOLATES_CONSTRAINT;
+} else {
+return Flag::SUCCESS;
+}
+}
+Flag::Error G1RSetSparseRegionEntriesConstraintFunc(intx value, bool verbose) {
+if (!UseG1GC) return Flag::SUCCESS;
+// Default value of G1RSetSparseRegionEntries=0 means will be set ergonomically.
+// Minimum value is 1.
+if (FLAG_IS_CMDLINE(G1RSetSparseRegionEntries) && (value < 1)) {
+CommandLineError::print(verbose,
+"G1RSetSparseRegionEntries (" INTX_FORMAT ") must be "
+"greater than or equal to 1\n",
+value);
+return Flag::VIOLATES_CONSTRAINT;
+} else {
+return Flag::SUCCESS;
+}
+}
+Flag::Error G1YoungSurvRateNumRegionsSummaryConstraintFunc(intx value, bool verbose) {
+if (!UseG1GC) return Flag::SUCCESS;
+if (value > (intx)HeapRegionBounds::target_number()) {
+CommandLineError::print(verbose,
+"G1YoungSurvRateNumRegionsSummary (" INTX_FORMAT ") must be "
+"less than or equal to region count (" SIZE_FORMAT ")\n",
+value, HeapRegionBounds::target_number());
+return Flag::VIOLATES_CONSTRAINT;
+} else {
+return Flag::SUCCESS;
+}
+}
+Flag::Error G1HeapRegionSizeConstraintFunc(size_t value, bool verbose) {
+if (!UseG1GC) return Flag::SUCCESS;
+// Default value of G1HeapRegionSize=0 means will be set ergonomically.
+if (FLAG_IS_CMDLINE(G1HeapRegionSize) && (value < HeapRegionBounds::min_size())) {
+CommandLineError::print(verbose,
+"G1HeapRegionSize (" SIZE_FORMAT ") must be "
+"greater than or equal to ergonomic heap region minimum size\n",
+value);
+return Flag::VIOLATES_CONSTRAINT;
+} else {
+return Flag::SUCCESS;
+}
+}
 Flag::Error G1NewSizePercentConstraintFunc(uintx value, bool verbose) {
+if (!UseG1GC) return Flag::SUCCESS;
 if (value > G1MaxNewSizePercent) {
 CommandLineError::print(verbose,
 "G1NewSizePercent (" UINTX_FORMAT ") must be "
 "less than or equal to G1MaxNewSizePercent (" UINTX_FORMAT ")\n",
 value, G1MaxNewSizePercent);
 return Flag::SUCCESS;
 }
 }
 Flag::Error G1MaxNewSizePercentConstraintFunc(uintx value, bool verbose) {
+if (!UseG1GC) return Flag::SUCCESS;
 if (value < G1NewSizePercent) {
 CommandLineError::print(verbose,
 "G1MaxNewSizePercent (" UINTX_FORMAT ") must be "
 "greater than or equal to G1NewSizePercent (" UINTX_FORMAT ")\n",
 value, G1NewSizePercent);
 return Flag::VIOLATES_CONSTRAINT;
 } else {
 return Flag::SUCCESS;
 }
 }
 #endif // INCLUDE_ALL_GCS
+Flag::Error ParGCStridesPerThreadConstraintFunc(uintx value, bool verbose) {
+#if INCLUDE_ALL_GCS
+if (UseConcMarkSweepGC && (value > ((uintx)max_jint / (uintx)ParallelGCThreads))) {
+CommandLineError::print(verbose,
+"ParGCStridesPerThread (" UINTX_FORMAT ") must be "
+"less than or equal to ergonomic maximum (" UINTX_FORMAT ")\n",
+value, ((uintx)max_jint / (uintx)ParallelGCThreads));
+return Flag::VIOLATES_CONSTRAINT;
+}
+#endif
+return Flag::SUCCESS;
+}
 Flag::Error CMSOldPLABMinConstraintFunc(size_t value, bool verbose) {
-if (value > CMSOldPLABMax) {
+Flag::Error status = Flag::SUCCESS;
-CommandLineError::print(verbose,
-"CMSOldPLABMin (" SIZE_FORMAT ") must be "
+#if INCLUDE_ALL_GCS
-"less than or equal to CMSOldPLABMax (" SIZE_FORMAT ")\n",
+if (UseConcMarkSweepGC) {
-value, CMSOldPLABMax);
+if (value > CMSOldPLABMax) {
+CommandLineError::print(verbose,
+"CMSOldPLABMin (" SIZE_FORMAT ") must be "
+"less than or equal to CMSOldPLABMax (" SIZE_FORMAT ")\n",
+value, CMSOldPLABMax);
+return Flag::VIOLATES_CONSTRAINT;
+}
+status = MaxPLABSizeBounds("CMSOldPLABMin", value, verbose);
+}
+#endif
+return status;
+}
+Flag::Error CMSOldPLABMaxConstraintFunc(size_t value, bool verbose) {
+Flag::Error status = Flag::SUCCESS;
+#if INCLUDE_ALL_GCS
+if (UseConcMarkSweepGC) {
+status = MaxPLABSizeBounds("CMSOldPLABMax", value, verbose);
+}
+#endif
+return status;
+}
+Flag::Error MarkStackSizeConstraintFunc(size_t value, bool verbose) {
+if (value > MarkStackSizeMax) {
+CommandLineError::print(verbose,
+"MarkStackSize (" SIZE_FORMAT ") must be "
+"less than or equal to MarkStackSizeMax (" SIZE_FORMAT ")\n",
+value, MarkStackSizeMax);
 return Flag::VIOLATES_CONSTRAINT;
 } else {
 return Flag::SUCCESS;
 }
 }
 Flag::Error CMSPrecleanDenominatorConstraintFunc(uintx value, bool verbose) {
-if (value <= CMSPrecleanNumerator) {
+#if INCLUDE_ALL_GCS
+if (UseConcMarkSweepGC && (value <= CMSPrecleanNumerator)) {
 CommandLineError::print(verbose,
 "CMSPrecleanDenominator (" UINTX_FORMAT ") must be "
 "strickly greater than CMSPrecleanNumerator (" UINTX_FORMAT ")\n",
 value, CMSPrecleanNumerator);
 return Flag::VIOLATES_CONSTRAINT;
-} else {
+}
-return Flag::SUCCESS;
+#endif
-}
+return Flag::SUCCESS;
 }
 Flag::Error CMSPrecleanNumeratorConstraintFunc(uintx value, bool verbose) {
-if (value > (CMSPrecleanDenominator - 1)) {
+#if INCLUDE_ALL_GCS
+if (UseConcMarkSweepGC && (value >= CMSPrecleanDenominator)) {
 CommandLineError::print(verbose,
 "CMSPrecleanNumerator (" UINTX_FORMAT ") must be "
-"less than or equal to CMSPrecleanDenominator - 1 (" UINTX_FORMAT ")\n",
+"less than CMSPrecleanDenominator (" UINTX_FORMAT ")\n",
-value, CMSPrecleanDenominator - 1);
+value, CMSPrecleanDenominator);
+return Flag::VIOLATES_CONSTRAINT;
+}
+#endif
+return Flag::SUCCESS;
+}
+Flag::Error CMSWorkQueueDrainThresholdConstraintFunc(uintx value, bool verbose) {
+#if INCLUDE_ALL_GCS
+if (UseConcMarkSweepGC) {
+return ParallelGCThreadsAndCMSWorkQueueDrainThreshold(ParallelGCThreads, value, verbose);
+}
+#endif
+return Flag::SUCCESS;
+}
+Flag::Error MaxGCPauseMillisConstraintFunc(uintx value, bool verbose) {
+#if INCLUDE_ALL_GCS
+if (UseG1GC && FLAG_IS_CMDLINE(MaxGCPauseMillis) && (value >= GCPauseIntervalMillis)) {
+CommandLineError::print(verbose,
+"MaxGCPauseMillis (" UINTX_FORMAT ") must be "
+"less than GCPauseIntervalMillis (" UINTX_FORMAT ")\n",
+value, GCPauseIntervalMillis);
+return Flag::VIOLATES_CONSTRAINT;
+}
+#endif
+return Flag::SUCCESS;
+}
+Flag::Error GCPauseIntervalMillisConstraintFunc(uintx value, bool verbose) {
+#if INCLUDE_ALL_GCS
+if (UseG1GC) {
+if (FLAG_IS_CMDLINE(GCPauseIntervalMillis)) {
+if (value < 1) {
+CommandLineError::print(verbose,
+"GCPauseIntervalMillis (" UINTX_FORMAT ") must be "
+"greater than or equal to 1\n",
+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 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,
+"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;
 }
 }

changeset 33144	c56850e328fc
parent 32613	73bec9f941d7
child 34661	9a1d11d88ea0