8201168: Move GC command line constraint functions to GC specific files
Reviewed-by: gziemski, sjohanss
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/gc/cms/commandLineFlagConstraintsCMS.cpp Tue Apr 10 12:17:16 2018 +0200
@@ -0,0 +1,241 @@
+/*
+ * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "gc/cms/commandLineFlagConstraintsCMS.hpp"
+#include "gc/cms/concurrentMarkSweepGeneration.inline.hpp"
+#include "gc/shared/cardTableRS.hpp"
+#include "gc/shared/collectedHeap.hpp"
+#include "gc/shared/genCollectedHeap.hpp"
+#include "gc/shared/commandLineFlagConstraintsGC.hpp"
+#include "memory/universe.hpp"
+#include "runtime/commandLineFlagRangeList.hpp"
+#include "runtime/globals_extension.hpp"
+#include "utilities/globalDefinitions.hpp"
+
+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;
+}
+
+Flag::Error ParallelGCThreadsConstraintFuncCMS(uint value, bool verbose) {
+ // 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;
+ }
+ return ParallelGCThreadsAndCMSWorkQueueDrainThreshold(value, CMSWorkQueueDrainThreshold, verbose);
+}
+Flag::Error ParGCStridesPerThreadConstraintFunc(uintx value, bool verbose) {
+ 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;
+ }
+ return Flag::SUCCESS;
+}
+
+Flag::Error ParGCCardsPerStrideChunkConstraintFunc(intx value, bool verbose) {
+ if (UseConcMarkSweepGC) {
+ // ParGCCardsPerStrideChunk should be compared with card table size.
+ size_t heap_size = Universe::heap()->reserved_region().word_size();
+ CardTableRS* ct = GenCollectedHeap::heap()->rem_set();
+ size_t card_table_size = ct->cards_required(heap_size) - 1; // Valid card table size
+
+ if ((size_t)value > card_table_size) {
+ CommandLineError::print(verbose,
+ "ParGCCardsPerStrideChunk (" INTX_FORMAT ") is too large for the heap size and "
+ "must be less than or equal to card table size (" SIZE_FORMAT ")\n",
+ value, card_table_size);
+ return Flag::VIOLATES_CONSTRAINT;
+ }
+
+ // ParGCCardsPerStrideChunk is used with n_strides(ParallelGCThreads*ParGCStridesPerThread)
+ // from CardTableRS::process_stride(). Note that ParGCStridesPerThread is already checked
+ // not to make an overflow with ParallelGCThreads from its constraint function.
+ uintx n_strides = ParallelGCThreads * ParGCStridesPerThread;
+ uintx ergo_max = max_uintx / n_strides;
+ if ((uintx)value > ergo_max) {
+ CommandLineError::print(verbose,
+ "ParGCCardsPerStrideChunk (" INTX_FORMAT ") must be "
+ "less than or equal to ergonomic maximum (" UINTX_FORMAT ")\n",
+ value, ergo_max);
+ return Flag::VIOLATES_CONSTRAINT;
+ }
+ }
+ return Flag::SUCCESS;
+}
+
+Flag::Error CMSOldPLABMinConstraintFunc(size_t value, bool verbose) {
+ Flag::Error status = Flag::SUCCESS;
+
+ if (UseConcMarkSweepGC) {
+ 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);
+ }
+ return status;
+}
+
+Flag::Error CMSOldPLABMaxConstraintFunc(size_t value, bool verbose) {
+ Flag::Error status = Flag::SUCCESS;
+
+ if (UseConcMarkSweepGC) {
+ status = MaxPLABSizeBounds("CMSOldPLABMax", value, verbose);
+ }
+ return status;
+}
+
+static Flag::Error CMSReservedAreaConstraintFunc(const char* name, size_t value, bool verbose) {
+ if (UseConcMarkSweepGC) {
+ ConcurrentMarkSweepGeneration* cms = (ConcurrentMarkSweepGeneration*)GenCollectedHeap::heap()->old_gen();
+ const size_t ergo_max = cms->cmsSpace()->max_flag_size_for_task_size();
+ if (value > ergo_max) {
+ CommandLineError::print(verbose,
+ "%s (" SIZE_FORMAT ") must be "
+ "less than or equal to ergonomic maximum (" SIZE_FORMAT ") "
+ "which is based on the maximum size of the old generation of the Java heap\n",
+ name, value, ergo_max);
+ return Flag::VIOLATES_CONSTRAINT;
+ }
+ }
+
+ return Flag::SUCCESS;
+}
+
+Flag::Error CMSRescanMultipleConstraintFunc(size_t value, bool verbose) {
+ Flag::Error status = CMSReservedAreaConstraintFunc("CMSRescanMultiple", value, verbose);
+
+ if (status == Flag::SUCCESS && UseConcMarkSweepGC) {
+ // CMSParRemarkTask::do_dirty_card_rescan_tasks requires CompactibleFreeListSpace::rescan_task_size()
+ // to be aligned to CardTable::card_size * BitsPerWord.
+ // Note that rescan_task_size() will be aligned if CMSRescanMultiple is a multiple of 'HeapWordSize'
+ // because rescan_task_size() is CardTable::card_size / HeapWordSize * BitsPerWord.
+ if (value % HeapWordSize != 0) {
+ CommandLineError::print(verbose,
+ "CMSRescanMultiple (" SIZE_FORMAT ") must be "
+ "a multiple of " SIZE_FORMAT "\n",
+ value, HeapWordSize);
+ status = Flag::VIOLATES_CONSTRAINT;
+ }
+ }
+
+ return status;
+}
+
+Flag::Error CMSConcMarkMultipleConstraintFunc(size_t value, bool verbose) {
+ return CMSReservedAreaConstraintFunc("CMSConcMarkMultiple", value, verbose);
+}
+
+Flag::Error CMSPrecleanDenominatorConstraintFunc(uintx value, bool verbose) {
+ 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;
+ }
+ return Flag::SUCCESS;
+}
+
+Flag::Error CMSPrecleanNumeratorConstraintFunc(uintx value, bool verbose) {
+ if (UseConcMarkSweepGC && (value >= CMSPrecleanDenominator)) {
+ CommandLineError::print(verbose,
+ "CMSPrecleanNumerator (" UINTX_FORMAT ") must be "
+ "less than CMSPrecleanDenominator (" UINTX_FORMAT ")\n",
+ value, CMSPrecleanDenominator);
+ return Flag::VIOLATES_CONSTRAINT;
+ }
+ return Flag::SUCCESS;
+}
+
+Flag::Error CMSSamplingGrainConstraintFunc(uintx value, bool verbose) {
+ if (UseConcMarkSweepGC) {
+ size_t max_capacity = GenCollectedHeap::heap()->young_gen()->max_capacity();
+ if (value > max_uintx - max_capacity) {
+ CommandLineError::print(verbose,
+ "CMSSamplingGrain (" UINTX_FORMAT ") must be "
+ "less than or equal to ergonomic maximum (" SIZE_FORMAT ")\n",
+ value, max_uintx - max_capacity);
+ return Flag::VIOLATES_CONSTRAINT;
+ }
+ }
+ return Flag::SUCCESS;
+}
+
+Flag::Error CMSWorkQueueDrainThresholdConstraintFunc(uintx value, bool verbose) {
+ if (UseConcMarkSweepGC) {
+ return ParallelGCThreadsAndCMSWorkQueueDrainThreshold(ParallelGCThreads, value, verbose);
+ }
+ return Flag::SUCCESS;
+}
+
+Flag::Error CMSBitMapYieldQuantumConstraintFunc(size_t value, bool verbose) {
+ // Skip for current default value.
+ if (UseConcMarkSweepGC && FLAG_IS_CMDLINE(CMSBitMapYieldQuantum)) {
+ // CMSBitMapYieldQuantum should be compared with mark bitmap size.
+ ConcurrentMarkSweepGeneration* cms = (ConcurrentMarkSweepGeneration*)GenCollectedHeap::heap()->old_gen();
+ size_t bitmap_size = cms->collector()->markBitMap()->sizeInWords();
+
+ if (value > bitmap_size) {
+ CommandLineError::print(verbose,
+ "CMSBitMapYieldQuantum (" SIZE_FORMAT ") must "
+ "be less than or equal to bitmap size (" SIZE_FORMAT ") "
+ "whose size corresponds to the size of old generation of the Java heap\n",
+ value, bitmap_size);
+ return Flag::VIOLATES_CONSTRAINT;
+ }
+ }
+ return Flag::SUCCESS;
+}
+
+Flag::Error OldPLABSizeConstraintFuncCMS(size_t value, bool verbose) {
+ 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().
+ return MaxPLABSizeBounds("OldPLABSize", value, verbose);
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/gc/cms/commandLineFlagConstraintsCMS.hpp Tue Apr 10 12:17:16 2018 +0200
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_GC_CMS_COMMANDLINEFLAGCONSTRAINTSCMS_HPP
+#define SHARE_GC_CMS_COMMANDLINEFLAGCONSTRAINTSCMS_HPP
+
+#include "runtime/globals.hpp"
+#include "utilities/globalDefinitions.hpp"
+
+// CMS Flag Constraints
+Flag::Error ParGCStridesPerThreadConstraintFunc(uintx value, bool verbose);
+Flag::Error ParGCCardsPerStrideChunkConstraintFunc(intx value, bool verbose);
+Flag::Error CMSOldPLABMinConstraintFunc(size_t value, bool verbose);
+Flag::Error CMSOldPLABMaxConstraintFunc(size_t value, bool verbose);
+Flag::Error CMSRescanMultipleConstraintFunc(size_t value, bool verbose);
+Flag::Error CMSConcMarkMultipleConstraintFunc(size_t value, bool verbose);
+Flag::Error CMSPrecleanDenominatorConstraintFunc(uintx value, bool verbose);
+Flag::Error CMSPrecleanNumeratorConstraintFunc(uintx value, bool verbose);
+Flag::Error CMSSamplingGrainConstraintFunc(uintx value, bool verbose);
+Flag::Error CMSWorkQueueDrainThresholdConstraintFunc(uintx value, bool verbose);
+Flag::Error CMSBitMapYieldQuantumConstraintFunc(size_t value, bool verbose);
+
+// CMS Subconstraints
+Flag::Error ParallelGCThreadsConstraintFuncCMS(uint value, bool verbose);
+Flag::Error OldPLABSizeConstraintFuncCMS(size_t value, bool verbose);
+
+#endif // SHARE_GC_CMS_COMMANDLINEFLAGCONSTRAINTSCMS_HPP
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/gc/g1/commandLineFlagConstraintsG1.cpp Tue Apr 10 12:17:16 2018 +0200
@@ -0,0 +1,167 @@
+/*
+ * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "gc/g1/heapRegionBounds.inline.hpp"
+#include "runtime/commandLineFlagRangeList.hpp"
+#include "runtime/globals_extension.hpp"
+#include "utilities/globalDefinitions.hpp"
+
+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 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::VIOLATES_CONSTRAINT;
+ } else {
+ 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;
+ }
+}
+
+Flag::Error MaxGCPauseMillisConstraintFuncG1(uintx value, bool verbose) {
+ 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;
+ }
+
+ return Flag::SUCCESS;
+}
+
+Flag::Error GCPauseIntervalMillisConstraintFuncG1(uintx value, bool verbose) {
+ 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 (FLAG_IS_DEFAULT(MaxGCPauseMillis)) {
+ CommandLineError::print(verbose,
+ "GCPauseIntervalMillis cannot be set "
+ "without setting MaxGCPauseMillis\n");
+ 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;
+ }
+ }
+ }
+
+ return Flag::SUCCESS;
+}
+
+Flag::Error NewSizeConstraintFuncG1(size_t value, bool verbose) {
+#ifdef _LP64
+ // 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 // _LP64
+ return Flag::SUCCESS;
+}
+
+size_t MaxSizeForHeapAlignmentG1() {
+ return HeapRegionBounds::max_size();
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/gc/g1/commandLineFlagConstraintsG1.hpp Tue Apr 10 12:17:16 2018 +0200
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_GC_G1_COMMANDLINEFLAGCONSTRAINTSG1_HPP
+#define SHARE_GC_G1_COMMANDLINEFLAGCONSTRAINTSG1_HPP
+
+#include "runtime/globals.hpp"
+#include "utilities/globalDefinitions.hpp"
+
+// G1 Flag Constraints
+Flag::Error G1RSetRegionEntriesConstraintFunc(intx value, bool verbose);
+Flag::Error G1RSetSparseRegionEntriesConstraintFunc(intx value, bool verbose);
+Flag::Error G1HeapRegionSizeConstraintFunc(size_t value, bool verbose);
+Flag::Error G1NewSizePercentConstraintFunc(uintx value, bool verbose);
+Flag::Error G1MaxNewSizePercentConstraintFunc(uintx value, bool verbose);
+
+// G1 Subconstraints
+Flag::Error MaxGCPauseMillisConstraintFuncG1(uintx value, bool verbose);
+Flag::Error GCPauseIntervalMillisConstraintFuncG1(uintx value, bool verbose);
+Flag::Error MaxSizeForHeapAlignmentG1(const char* name, size_t value, bool verbose);
+Flag::Error NewSizeConstraintFuncG1(size_t value, bool verbose);
+
+size_t MaxSizeForHeapAlignmentG1();
+
+#endif // SHARE_GC_SHARED_COMMANDLINEFLAGCONSTRAINTSG1_HPP
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/gc/parallel/commandLineFlagConstraintsParallel.cpp Tue Apr 10 12:17:16 2018 +0200
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "runtime/commandLineFlagRangeList.hpp"
+#include "runtime/globals.hpp"
+#include "utilities/globalDefinitions.hpp"
+
+Flag::Error ParallelGCThreadsConstraintFuncParallel(uint value, bool verbose) {
+ // 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;
+ }
+ return Flag::SUCCESS;
+}
+
+Flag::Error InitialTenuringThresholdConstraintFuncParallel(uintx value, bool verbose) {
+ // InitialTenuringThreshold is only used for ParallelGC.
+ 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;
+ }
+ return Flag::SUCCESS;
+}
+
+Flag::Error MaxTenuringThresholdConstraintFuncParallel(uintx value, bool verbose) {
+ // As only ParallelGC uses 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;
+ }
+
+ return Flag::SUCCESS;
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/gc/parallel/commandLineFlagConstraintsParallel.hpp Tue Apr 10 12:17:16 2018 +0200
@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_GC_PARALLEL_COMMANDLINEFLAGCONSTRAINTSPARALLEL_HPP
+#define SHARE_GC_PARALLEL_COMMANDLINEFLAGCONSTRAINTSPARALLEL_HPP
+
+#include "runtime/globals.hpp"
+#include "utilities/globalDefinitions.hpp"
+
+// Parallel Subconstraints
+Flag::Error ParallelGCThreadsConstraintFuncParallel(uint value, bool verbose);
+Flag::Error InitialTenuringThresholdConstraintFuncParallel(uintx value, bool verbose);
+Flag::Error MaxTenuringThresholdConstraintFuncParallel(uintx value, bool verbose);
+
+#endif // SHARE_GC_PARALLEL_COMMANDLINEFLAGCONSTRAINTSPARALLEL_HPP
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/gc/shared/commandLineFlagConstraintsGC.cpp Tue Apr 10 12:17:16 2018 +0200
@@ -0,0 +1,471 @@
+/*
+ * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "gc/shared/collectedHeap.hpp"
+#include "gc/shared/collectorPolicy.hpp"
+#include "gc/shared/commandLineFlagConstraintsGC.hpp"
+#include "gc/shared/genCollectedHeap.hpp"
+#include "gc/shared/plab.hpp"
+#include "gc/shared/threadLocalAllocBuffer.hpp"
+#include "runtime/arguments.hpp"
+#include "runtime/commandLineFlagRangeList.hpp"
+#include "runtime/globals.hpp"
+#include "runtime/globals_extension.hpp"
+#include "runtime/thread.inline.hpp"
+#include "utilities/align.hpp"
+#include "utilities/defaultStream.hpp"
+#include "utilities/macros.hpp"
+#if INCLUDE_ALL_GCS
+#include "gc/cms/commandLineFlagConstraintsCMS.hpp"
+#include "gc/g1/commandLineFlagConstraintsG1.hpp"
+#include "gc/parallel/commandLineFlagConstraintsParallel.hpp"
+#endif
+#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.
+
+// 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
+ status = ParallelGCThreadsConstraintFuncParallel(value, verbose);
+ if (status != Flag::SUCCESS) {
+ return status;
+ }
+
+ status = ParallelGCThreadsConstraintFuncCMS(value, verbose);
+ if (status != Flag::SUCCESS) {
+ return status;
+ }
+#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 || UseParallelGC) && (value < PLAB::min_size())) {
+ CommandLineError::print(verbose,
+ "%s (" SIZE_FORMAT ") must be "
+ "greater than or equal to ergonomic PLAB minimum size (" SIZE_FORMAT ")\n",
+ name, value, PLAB::min_size());
+ return Flag::VIOLATES_CONSTRAINT;
+ }
+#endif // INCLUDE_ALL_GCS
+ return Flag::SUCCESS;
+}
+
+Flag::Error MaxPLABSizeBounds(const char* name, size_t value, bool verbose) {
+#if INCLUDE_ALL_GCS
+ if ((UseConcMarkSweepGC || UseG1GC || UseParallelGC) && (value > PLAB::max_size())) {
+ CommandLineError::print(verbose,
+ "%s (" SIZE_FORMAT ") must be "
+ "less than or equal to ergonomic PLAB maximum size (" SIZE_FORMAT ")\n",
+ name, value, PLAB::max_size());
+ return Flag::VIOLATES_CONSTRAINT;
+ }
+#endif // INCLUDE_ALL_GCS
+ return Flag::SUCCESS;
+}
+
+static Flag::Error MinMaxPLABSizeBounds(const char* name, size_t value, bool verbose) {
+ Flag::Error status = MinPLABSizeBounds(name, value, verbose);
+
+ if (status == Flag::SUCCESS) {
+ return MaxPLABSizeBounds(name, value, verbose);
+ }
+ 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) {
+ return OldPLABSizeConstraintFuncCMS(value, verbose);
+ } else {
+ status = MinMaxPLABSizeBounds("OldPLABSize", value, verbose);
+ }
+#endif
+ return status;
+}
+
+Flag::Error MinHeapFreeRatioConstraintFunc(uintx value, bool verbose) {
+ if (value > MaxHeapFreeRatio) {
+ CommandLineError::print(verbose,
+ "MinHeapFreeRatio (" UINTX_FORMAT ") must be "
+ "less than or equal to MaxHeapFreeRatio (" UINTX_FORMAT ")\n",
+ value, MaxHeapFreeRatio);
+ return Flag::VIOLATES_CONSTRAINT;
+ } else {
+ return Flag::SUCCESS;
+ }
+}
+
+Flag::Error MaxHeapFreeRatioConstraintFunc(uintx value, bool verbose) {
+ if (value < MinHeapFreeRatio) {
+ CommandLineError::print(verbose,
+ "MaxHeapFreeRatio (" UINTX_FORMAT ") must be "
+ "greater than or equal to MinHeapFreeRatio (" UINTX_FORMAT ")\n",
+ value, MinHeapFreeRatio);
+ return Flag::VIOLATES_CONSTRAINT;
+ } 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 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 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",
+ value, MaxMetaspaceFreeRatio);
+ return Flag::VIOLATES_CONSTRAINT;
+ } else {
+ return Flag::SUCCESS;
+ }
+}
+
+Flag::Error MaxMetaspaceFreeRatioConstraintFunc(uintx value, bool verbose) {
+ if (value < MinMetaspaceFreeRatio) {
+ CommandLineError::print(verbose,
+ "MaxMetaspaceFreeRatio (" UINTX_FORMAT ") must be "
+ "greater than or equal to MinMetaspaceFreeRatio (" UINTX_FORMAT ")\n",
+ value, MinMetaspaceFreeRatio);
+ return Flag::VIOLATES_CONSTRAINT;
+ } else {
+ return Flag::SUCCESS;
+ }
+}
+
+Flag::Error InitialTenuringThresholdConstraintFunc(uintx value, bool verbose) {
+#if INCLUDE_ALL_GCS
+ Flag::Error status = InitialTenuringThresholdConstraintFuncParallel(value, verbose);
+ if (status != Flag::SUCCESS) {
+ return status;
+ }
+#endif
+
+ return Flag::SUCCESS;
+}
+
+Flag::Error MaxTenuringThresholdConstraintFunc(uintx value, bool verbose) {
+#if INCLUDE_ALL_GCS
+ Flag::Error status = MaxTenuringThresholdConstraintFuncParallel(value, verbose);
+ if (status != Flag::SUCCESS) {
+ return status;
+ }
+#endif
+
+ // MaxTenuringThreshold=0 means NeverTenure=false && AlwaysTenure=true
+ if ((value == 0) && (NeverTenure || !AlwaysTenure)) {
+ 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;
+}
+
+Flag::Error MaxGCPauseMillisConstraintFunc(uintx value, bool verbose) {
+#if INCLUDE_ALL_GCS
+ Flag::Error status = MaxGCPauseMillisConstraintFuncG1(value, verbose);
+ if (status != Flag::SUCCESS) {
+ return status;
+ }
+#endif
+
+ return Flag::SUCCESS;
+}
+
+Flag::Error GCPauseIntervalMillisConstraintFunc(uintx value, bool verbose) {
+#if INCLUDE_ALL_GCS
+ Flag::Error status = GCPauseIntervalMillisConstraintFuncG1(value, verbose);
+ if (status != Flag::SUCCESS) {
+ return status;
+ }
+#endif
+
+ return Flag::SUCCESS;
+}
+
+Flag::Error InitialBootClassLoaderMetaspaceSizeConstraintFunc(size_t value, bool verbose) {
+ size_t aligned_max = align_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;
+}
+
+// To avoid an overflow by 'align_up(value, alignment)'.
+static Flag::Error MaxSizeForAlignment(const char* name, size_t value, size_t alignment, bool verbose) {
+ size_t aligned_max = ((max_uintx - alignment) & ~(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;
+}
+
+static Flag::Error MaxSizeForHeapAlignment(const char* name, size_t value, bool verbose) {
+ size_t heap_alignment;
+
+#if INCLUDE_ALL_GCS
+ if (UseG1GC) {
+ // For G1 GC, we don't know until G1CollectorPolicy is created.
+ heap_alignment = MaxSizeForHeapAlignmentG1();
+ } else
+#endif
+ {
+ heap_alignment = CollectorPolicy::compute_heap_alignment();
+ }
+
+ return MaxSizeForAlignment(name, value, heap_alignment, verbose);
+}
+
+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 HeapBaseMinAddressConstraintFunc(size_t value, bool verbose) {
+ // If an overflow happened in Arguments::set_heap_size(), MaxHeapSize will have too large a value.
+ // Check for this by ensuring that MaxHeapSize plus the requested min base address still fit within max_uintx.
+ if (UseCompressedOops && FLAG_IS_ERGO(MaxHeapSize) && (value > (max_uintx - MaxHeapSize))) {
+ CommandLineError::print(verbose,
+ "HeapBaseMinAddress (" SIZE_FORMAT ") or MaxHeapSize (" SIZE_FORMAT ") is too large. "
+ "Sum of them must be less than or equal to maximum of size_t (" SIZE_FORMAT ")\n",
+ value, MaxHeapSize, max_uintx);
+ return Flag::VIOLATES_CONSTRAINT;
+ }
+
+ return MaxSizeForHeapAlignment("HeapBaseMinAddress", value, verbose);
+}
+
+Flag::Error NewSizeConstraintFunc(size_t value, bool verbose) {
+#if INCLUDE_ALL_GCS
+ Flag::Error status = NewSizeConstraintFuncG1(value, verbose);
+ if (status != Flag::SUCCESS) {
+ return status;
+ }
+#endif
+
+ 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;
+ }
+ if (value > (ThreadLocalAllocBuffer::max_size() * HeapWordSize)) {
+ CommandLineError::print(verbose,
+ "MinTLABSize (" SIZE_FORMAT ") must be "
+ "less than or equal to ergonomic TLAB maximum (" SIZE_FORMAT ")\n",
+ value, ThreadLocalAllocBuffer::max_size() * HeapWordSize);
+ return Flag::VIOLATES_CONSTRAINT;
+ }
+ 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;
+}
+
+// We will protect overflow from ThreadLocalAllocBuffer::record_slow_allocation(),
+// so AfterMemoryInit type is enough to check.
+Flag::Error TLABWasteIncrementConstraintFunc(uintx value, bool verbose) {
+ if (UseTLAB) {
+ size_t refill_waste_limit = Thread::current()->tlab().refill_waste_limit();
+
+ // Compare with 'max_uintx' as ThreadLocalAllocBuffer::_refill_waste_limit is 'size_t'.
+ if (refill_waste_limit > (max_uintx - value)) {
+ CommandLineError::print(verbose,
+ "TLABWasteIncrement (" UINTX_FORMAT ") must be "
+ "less than or equal to ergonomic TLAB waste increment maximum size(" SIZE_FORMAT ")\n",
+ value, (max_uintx - refill_waste_limit));
+ 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;
+ }
+}
+
+Flag::Error SurvivorAlignmentInBytesConstraintFunc(intx value, bool verbose) {
+ if (value != 0) {
+ if (!is_power_of_2(value)) {
+ CommandLineError::print(verbose,
+ "SurvivorAlignmentInBytes (" INTX_FORMAT ") must be "
+ "power of 2\n",
+ value);
+ return Flag::VIOLATES_CONSTRAINT;
+ }
+ if (value < ObjectAlignmentInBytes) {
+ CommandLineError::print(verbose,
+ "SurvivorAlignmentInBytes (" INTX_FORMAT ") must be "
+ "greater than or equal to ObjectAlignmentInBytes (" INTX_FORMAT ")\n",
+ value, ObjectAlignmentInBytes);
+ return Flag::VIOLATES_CONSTRAINT;
+ }
+ }
+ return Flag::SUCCESS;
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/gc/shared/commandLineFlagConstraintsGC.hpp Tue Apr 10 12:17:16 2018 +0200
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_GC_SHARED_COMMANDLINEFLAGCONSTRAINTSGC_HPP
+#define SHARE_GC_SHARED_COMMANDLINEFLAGCONSTRAINTSGC_HPP
+
+#include "utilities/globalDefinitions.hpp"
+#include "utilities/macros.hpp"
+#if INCLUDE_ALL_GCS
+#include "gc/cms/commandLineFlagConstraintsCMS.hpp"
+#include "gc/g1/commandLineFlagConstraintsG1.hpp"
+#include "gc/parallel/commandLineFlagConstraintsParallel.hpp"
+#endif
+
+/*
+ * Here we have GC arguments constraints functions, which are called automatically
+ * whenever flag's value changes. If the constraint fails the function should return
+ * an appropriate error value.
+ */
+
+Flag::Error ParallelGCThreadsConstraintFunc(uint value, bool verbose);
+Flag::Error ConcGCThreadsConstraintFunc(uint value, bool verbose);
+Flag::Error YoungPLABSizeConstraintFunc(size_t value, bool verbose);
+Flag::Error OldPLABSizeConstraintFunc(size_t value, bool verbose);
+Flag::Error MinHeapFreeRatioConstraintFunc(uintx value, bool verbose);
+Flag::Error MaxHeapFreeRatioConstraintFunc(uintx value, bool verbose);
+Flag::Error SoftRefLRUPolicyMSPerMBConstraintFunc(intx value, bool verbose);
+Flag::Error MarkStackSizeConstraintFunc(size_t value, bool verbose);
+Flag::Error MinMetaspaceFreeRatioConstraintFunc(uintx value, bool verbose);
+Flag::Error MaxMetaspaceFreeRatioConstraintFunc(uintx value, bool verbose);
+Flag::Error InitialTenuringThresholdConstraintFunc(uintx value, bool verbose);
+Flag::Error MaxTenuringThresholdConstraintFunc(uintx value, bool verbose);
+
+Flag::Error MaxGCPauseMillisConstraintFunc(uintx value, bool verbose);
+Flag::Error GCPauseIntervalMillisConstraintFunc(uintx value, bool verbose);
+Flag::Error InitialBootClassLoaderMetaspaceSizeConstraintFunc(size_t value, bool verbose);
+Flag::Error InitialHeapSizeConstraintFunc(size_t value, bool verbose);
+Flag::Error MaxHeapSizeConstraintFunc(size_t value, bool verbose);
+Flag::Error HeapBaseMinAddressConstraintFunc(size_t value, bool verbose);
+Flag::Error NewSizeConstraintFunc(size_t value, bool verbose);
+Flag::Error MinTLABSizeConstraintFunc(size_t value, bool verbose);
+Flag::Error TLABSizeConstraintFunc(size_t value, bool verbose);
+Flag::Error TLABWasteIncrementConstraintFunc(uintx value, bool verbose);
+Flag::Error SurvivorRatioConstraintFunc(uintx value, bool verbose);
+Flag::Error MetaspaceSizeConstraintFunc(size_t value, bool verbose);
+Flag::Error MaxMetaspaceSizeConstraintFunc(size_t value, bool verbose);
+Flag::Error SurvivorAlignmentInBytesConstraintFunc(intx value, bool verbose);
+
+// Internal
+Flag::Error MaxPLABSizeBounds(const char* name, size_t value, bool verbose);
+
+#endif // SHARE_GC_SHARED_COMMANDLINEFLAGCONSTRAINTSGC_HPP
--- a/src/hotspot/share/runtime/commandLineFlagConstraintList.cpp Tue Apr 10 12:15:07 2018 +0200
+++ b/src/hotspot/share/runtime/commandLineFlagConstraintList.cpp Tue Apr 10 12:17:16 2018 +0200
@@ -25,11 +25,10 @@
#include "precompiled.hpp"
#include "classfile/stringTable.hpp"
#include "classfile/symbolTable.hpp"
-#include "gc/shared/referenceProcessor.hpp"
+#include "gc/shared/commandLineFlagConstraintsGC.hpp"
#include "runtime/arguments.hpp"
#include "runtime/commandLineFlagConstraintList.hpp"
#include "runtime/commandLineFlagConstraintsCompiler.hpp"
-#include "runtime/commandLineFlagConstraintsGC.hpp"
#include "runtime/commandLineFlagConstraintsRuntime.hpp"
#include "runtime/os.hpp"
#include "utilities/macros.hpp"
--- a/src/hotspot/share/runtime/commandLineFlagConstraintsGC.cpp Tue Apr 10 12:15:07 2018 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,810 +0,0 @@
-/*
- * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#include "precompiled.hpp"
-#include "gc/shared/collectedHeap.hpp"
-#include "gc/shared/collectorPolicy.hpp"
-#include "gc/shared/genCollectedHeap.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 "runtime/thread.inline.hpp"
-#include "utilities/align.hpp"
-#include "utilities/defaultStream.hpp"
-
-#if INCLUDE_ALL_GCS
-#include "gc/cms/concurrentMarkSweepGeneration.inline.hpp"
-#include "gc/g1/g1_globals.hpp"
-#include "gc/g1/heapRegionBounds.inline.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 || UseParallelGC) && (value < PLAB::min_size())) {
- CommandLineError::print(verbose,
- "%s (" SIZE_FORMAT ") must be "
- "greater than or equal to ergonomic PLAB minimum size (" SIZE_FORMAT ")\n",
- name, value, PLAB::min_size());
- return Flag::VIOLATES_CONSTRAINT;
- }
-#endif // INCLUDE_ALL_GCS
- return Flag::SUCCESS;
-}
-
-static Flag::Error MaxPLABSizeBounds(const char* name, size_t value, bool verbose) {
-#if INCLUDE_ALL_GCS
- if ((UseConcMarkSweepGC || UseG1GC || UseParallelGC) && (value > PLAB::max_size())) {
- CommandLineError::print(verbose,
- "%s (" SIZE_FORMAT ") must be "
- "less than or equal to ergonomic PLAB maximum size (" SIZE_FORMAT ")\n",
- name, value, PLAB::max_size());
- return Flag::VIOLATES_CONSTRAINT;
- }
-#endif // INCLUDE_ALL_GCS
- return Flag::SUCCESS;
-}
-
-static Flag::Error MinMaxPLABSizeBounds(const char* name, size_t value, bool verbose) {
- Flag::Error status = MinPLABSizeBounds(name, value, verbose);
-
- if (status == Flag::SUCCESS) {
- return MaxPLABSizeBounds(name, value, verbose);
- }
- 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,
- "MinHeapFreeRatio (" UINTX_FORMAT ") must be "
- "less than or equal to MaxHeapFreeRatio (" UINTX_FORMAT ")\n",
- value, MaxHeapFreeRatio);
- return Flag::VIOLATES_CONSTRAINT;
- } else {
- return Flag::SUCCESS;
- }
-}
-
-Flag::Error MaxHeapFreeRatioConstraintFunc(uintx value, bool verbose) {
- if (value < MinHeapFreeRatio) {
- CommandLineError::print(verbose,
- "MaxHeapFreeRatio (" UINTX_FORMAT ") must be "
- "greater than or equal to MinHeapFreeRatio (" UINTX_FORMAT ")\n",
- value, MinHeapFreeRatio);
- return Flag::VIOLATES_CONSTRAINT;
- } 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",
- value, MaxMetaspaceFreeRatio);
- return Flag::VIOLATES_CONSTRAINT;
- } else {
- return Flag::SUCCESS;
- }
-}
-
-Flag::Error MaxMetaspaceFreeRatioConstraintFunc(uintx value, bool verbose) {
- if (value < MinMetaspaceFreeRatio) {
- CommandLineError::print(verbose,
- "MaxMetaspaceFreeRatio (" UINTX_FORMAT ") must be "
- "greater than or equal to MinMetaspaceFreeRatio (" UINTX_FORMAT ")\n",
- value, MinMetaspaceFreeRatio);
- return Flag::VIOLATES_CONSTRAINT;
- } else {
- return Flag::SUCCESS;
- }
-}
-
-Flag::Error InitialTenuringThresholdConstraintFunc(uintx value, bool verbose) {
-#if INCLUDE_ALL_GCS
- // InitialTenuringThreshold is only used for ParallelGC.
- 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;
- }
-#endif
- return Flag::SUCCESS;
-}
-
-Flag::Error MaxTenuringThresholdConstraintFunc(uintx value, bool verbose) {
-#if INCLUDE_ALL_GCS
- // As only ParallelGC uses 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;
- }
-#endif
-
- // MaxTenuringThreshold=0 means NeverTenure=false && AlwaysTenure=true
- if ((value == 0) && (NeverTenure || !AlwaysTenure)) {
- 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 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::VIOLATES_CONSTRAINT;
- } else {
- 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 ParGCCardsPerStrideChunkConstraintFunc(intx value, bool verbose) {
-#if INCLUDE_ALL_GCS
- if (UseConcMarkSweepGC) {
- // ParGCCardsPerStrideChunk should be compared with card table size.
- size_t heap_size = Universe::heap()->reserved_region().word_size();
- CardTableRS* ct = GenCollectedHeap::heap()->rem_set();
- size_t card_table_size = ct->cards_required(heap_size) - 1; // Valid card table size
-
- if ((size_t)value > card_table_size) {
- CommandLineError::print(verbose,
- "ParGCCardsPerStrideChunk (" INTX_FORMAT ") is too large for the heap size and "
- "must be less than or equal to card table size (" SIZE_FORMAT ")\n",
- value, card_table_size);
- return Flag::VIOLATES_CONSTRAINT;
- }
-
- // ParGCCardsPerStrideChunk is used with n_strides(ParallelGCThreads*ParGCStridesPerThread)
- // from CardTableRS::process_stride(). Note that ParGCStridesPerThread is already checked
- // not to make an overflow with ParallelGCThreads from its constraint function.
- uintx n_strides = ParallelGCThreads * ParGCStridesPerThread;
- uintx ergo_max = max_uintx / n_strides;
- if ((uintx)value > ergo_max) {
- CommandLineError::print(verbose,
- "ParGCCardsPerStrideChunk (" INTX_FORMAT ") must be "
- "less than or equal to ergonomic maximum (" UINTX_FORMAT ")\n",
- value, ergo_max);
- return Flag::VIOLATES_CONSTRAINT;
- }
- }
-#endif
- return Flag::SUCCESS;
-}
-
-Flag::Error CMSOldPLABMinConstraintFunc(size_t value, bool verbose) {
- Flag::Error status = Flag::SUCCESS;
-
-#if INCLUDE_ALL_GCS
- if (UseConcMarkSweepGC) {
- 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;
- }
-}
-
-static Flag::Error CMSReservedAreaConstraintFunc(const char* name, size_t value, bool verbose) {
-#if INCLUDE_ALL_GCS
- if (UseConcMarkSweepGC) {
- ConcurrentMarkSweepGeneration* cms = (ConcurrentMarkSweepGeneration*)GenCollectedHeap::heap()->old_gen();
- const size_t ergo_max = cms->cmsSpace()->max_flag_size_for_task_size();
- if (value > ergo_max) {
- CommandLineError::print(verbose,
- "%s (" SIZE_FORMAT ") must be "
- "less than or equal to ergonomic maximum (" SIZE_FORMAT ") "
- "which is based on the maximum size of the old generation of the Java heap\n",
- name, value, ergo_max);
- return Flag::VIOLATES_CONSTRAINT;
- }
- }
-#endif
-
- return Flag::SUCCESS;
-}
-
-Flag::Error CMSRescanMultipleConstraintFunc(size_t value, bool verbose) {
- Flag::Error status = CMSReservedAreaConstraintFunc("CMSRescanMultiple", value, verbose);
-
-#if INCLUDE_ALL_GCS
- if (status == Flag::SUCCESS && UseConcMarkSweepGC) {
- // CMSParRemarkTask::do_dirty_card_rescan_tasks requires CompactibleFreeListSpace::rescan_task_size()
- // to be aligned to CardTable::card_size * BitsPerWord.
- // Note that rescan_task_size() will be aligned if CMSRescanMultiple is a multiple of 'HeapWordSize'
- // because rescan_task_size() is CardTable::card_size / HeapWordSize * BitsPerWord.
- if (value % HeapWordSize != 0) {
- CommandLineError::print(verbose,
- "CMSRescanMultiple (" SIZE_FORMAT ") must be "
- "a multiple of " SIZE_FORMAT "\n",
- value, HeapWordSize);
- status = Flag::VIOLATES_CONSTRAINT;
- }
- }
-#endif
-
- return status;
-}
-
-Flag::Error CMSConcMarkMultipleConstraintFunc(size_t value, bool verbose) {
- return CMSReservedAreaConstraintFunc("CMSConcMarkMultiple", value, verbose);
-}
-
-Flag::Error CMSPrecleanDenominatorConstraintFunc(uintx value, bool verbose) {
-#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;
- }
-#endif
- return Flag::SUCCESS;
-}
-
-Flag::Error CMSPrecleanNumeratorConstraintFunc(uintx value, bool verbose) {
-#if INCLUDE_ALL_GCS
- if (UseConcMarkSweepGC && (value >= CMSPrecleanDenominator)) {
- CommandLineError::print(verbose,
- "CMSPrecleanNumerator (" UINTX_FORMAT ") must be "
- "less than CMSPrecleanDenominator (" UINTX_FORMAT ")\n",
- value, CMSPrecleanDenominator);
- return Flag::VIOLATES_CONSTRAINT;
- }
-#endif
- return Flag::SUCCESS;
-}
-
-Flag::Error CMSSamplingGrainConstraintFunc(uintx value, bool verbose) {
-#if INCLUDE_ALL_GCS
- if (UseConcMarkSweepGC) {
- size_t max_capacity = GenCollectedHeap::heap()->young_gen()->max_capacity();
- if (value > max_uintx - max_capacity) {
- CommandLineError::print(verbose,
- "CMSSamplingGrain (" UINTX_FORMAT ") must be "
- "less than or equal to ergonomic maximum (" SIZE_FORMAT ")\n",
- value, max_uintx - max_capacity);
- 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 CMSBitMapYieldQuantumConstraintFunc(size_t value, bool verbose) {
-#if INCLUDE_ALL_GCS
- // Skip for current default value.
- if (UseConcMarkSweepGC && FLAG_IS_CMDLINE(CMSBitMapYieldQuantum)) {
- // CMSBitMapYieldQuantum should be compared with mark bitmap size.
- ConcurrentMarkSweepGeneration* cms = (ConcurrentMarkSweepGeneration*)GenCollectedHeap::heap()->old_gen();
- size_t bitmap_size = cms->collector()->markBitMap()->sizeInWords();
-
- if (value > bitmap_size) {
- CommandLineError::print(verbose,
- "CMSBitMapYieldQuantum (" SIZE_FORMAT ") must "
- "be less than or equal to bitmap size (" SIZE_FORMAT ") "
- "whose size corresponds to the size of old generation of the Java heap\n",
- value, bitmap_size);
- return Flag::VIOLATES_CONSTRAINT;
- }
- }
-#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 (FLAG_IS_DEFAULT(MaxGCPauseMillis)) {
- CommandLineError::print(verbose,
- "GCPauseIntervalMillis cannot be set "
- "without setting MaxGCPauseMillis\n");
- 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 = align_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;
-}
-
-// To avoid an overflow by 'align_up(value, alignment)'.
-static Flag::Error MaxSizeForAlignment(const char* name, size_t value, size_t alignment, bool verbose) {
- size_t aligned_max = ((max_uintx - alignment) & ~(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;
-}
-
-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();
- }
-
- return MaxSizeForAlignment(name, value, heap_alignment, verbose);
-}
-
-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 HeapBaseMinAddressConstraintFunc(size_t value, bool verbose) {
- // If an overflow happened in Arguments::set_heap_size(), MaxHeapSize will have too large a value.
- // Check for this by ensuring that MaxHeapSize plus the requested min base address still fit within max_uintx.
- if (UseCompressedOops && FLAG_IS_ERGO(MaxHeapSize) && (value > (max_uintx - MaxHeapSize))) {
- CommandLineError::print(verbose,
- "HeapBaseMinAddress (" SIZE_FORMAT ") or MaxHeapSize (" SIZE_FORMAT ") is too large. "
- "Sum of them must be less than or equal to maximum of size_t (" SIZE_FORMAT ")\n",
- value, MaxHeapSize, max_uintx);
- return Flag::VIOLATES_CONSTRAINT;
- }
-
- return MaxSizeForHeapAlignment("HeapBaseMinAddress", value, verbose);
-}
-
-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;
- }
- if (value > (ThreadLocalAllocBuffer::max_size() * HeapWordSize)) {
- CommandLineError::print(verbose,
- "MinTLABSize (" SIZE_FORMAT ") must be "
- "less than or equal to ergonomic TLAB maximum (" SIZE_FORMAT ")\n",
- value, ThreadLocalAllocBuffer::max_size() * HeapWordSize);
- return Flag::VIOLATES_CONSTRAINT;
- }
- 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;
-}
-
-// We will protect overflow from ThreadLocalAllocBuffer::record_slow_allocation(),
-// so AfterMemoryInit type is enough to check.
-Flag::Error TLABWasteIncrementConstraintFunc(uintx value, bool verbose) {
- if (UseTLAB) {
- size_t refill_waste_limit = Thread::current()->tlab().refill_waste_limit();
-
- // Compare with 'max_uintx' as ThreadLocalAllocBuffer::_refill_waste_limit is 'size_t'.
- if (refill_waste_limit > (max_uintx - value)) {
- CommandLineError::print(verbose,
- "TLABWasteIncrement (" UINTX_FORMAT ") must be "
- "less than or equal to ergonomic TLAB waste increment maximum size(" SIZE_FORMAT ")\n",
- value, (max_uintx - refill_waste_limit));
- 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;
- }
-}
-
-Flag::Error SurvivorAlignmentInBytesConstraintFunc(intx value, bool verbose) {
- if (value != 0) {
- if (!is_power_of_2(value)) {
- CommandLineError::print(verbose,
- "SurvivorAlignmentInBytes (" INTX_FORMAT ") must be "
- "power of 2\n",
- value);
- return Flag::VIOLATES_CONSTRAINT;
- }
- if (value < ObjectAlignmentInBytes) {
- CommandLineError::print(verbose,
- "SurvivorAlignmentInBytes (" INTX_FORMAT ") must be "
- "greater than or equal to ObjectAlignmentInBytes (" INTX_FORMAT ")\n",
- value, ObjectAlignmentInBytes);
- return Flag::VIOLATES_CONSTRAINT;
- }
- }
- return Flag::SUCCESS;
-}
--- a/src/hotspot/share/runtime/commandLineFlagConstraintsGC.hpp Tue Apr 10 12:15:07 2018 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,84 +0,0 @@
-/*
- * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#ifndef SHARE_VM_RUNTIME_COMMANDLINEFLAGCONSTRAINTSGC_HPP
-#define SHARE_VM_RUNTIME_COMMANDLINEFLAGCONSTRAINTSGC_HPP
-
-#include "runtime/globals.hpp"
-#include "utilities/globalDefinitions.hpp"
-
-/*
- * Here we have GC arguments constraints functions, which are called automatically
- * whenever flag's value changes. If the constraint fails the function should return
- * an appropriate error value.
- */
-
-Flag::Error ParallelGCThreadsConstraintFunc(uint value, bool verbose);
-Flag::Error ConcGCThreadsConstraintFunc(uint value, bool verbose);
-Flag::Error YoungPLABSizeConstraintFunc(size_t value, bool verbose);
-Flag::Error OldPLABSizeConstraintFunc(size_t value, bool verbose);
-Flag::Error MinHeapFreeRatioConstraintFunc(uintx value, bool verbose);
-Flag::Error MaxHeapFreeRatioConstraintFunc(uintx value, bool verbose);
-Flag::Error SoftRefLRUPolicyMSPerMBConstraintFunc(intx value, bool verbose);
-Flag::Error MinMetaspaceFreeRatioConstraintFunc(uintx value, bool verbose);
-Flag::Error MaxMetaspaceFreeRatioConstraintFunc(uintx value, bool verbose);
-Flag::Error InitialTenuringThresholdConstraintFunc(uintx value, bool verbose);
-Flag::Error MaxTenuringThresholdConstraintFunc(uintx value, bool verbose);
-
-#if INCLUDE_ALL_GCS
-Flag::Error G1RSetRegionEntriesConstraintFunc(intx value, bool verbose);
-Flag::Error G1RSetSparseRegionEntriesConstraintFunc(intx value, bool verbose);
-Flag::Error G1HeapRegionSizeConstraintFunc(size_t value, bool verbose);
-Flag::Error G1NewSizePercentConstraintFunc(uintx value, bool verbose);
-Flag::Error G1MaxNewSizePercentConstraintFunc(uintx value, bool verbose);
-#endif // INCLUDE_ALL_GCS
-
-Flag::Error ParGCStridesPerThreadConstraintFunc(uintx value, bool verbose);
-Flag::Error ParGCCardsPerStrideChunkConstraintFunc(intx value, bool verbose);
-Flag::Error CMSOldPLABMinConstraintFunc(size_t value, bool verbose);
-Flag::Error CMSOldPLABMaxConstraintFunc(size_t value, bool verbose);
-Flag::Error MarkStackSizeConstraintFunc(size_t value, bool verbose);
-Flag::Error CMSRescanMultipleConstraintFunc(size_t value, bool verbose);
-Flag::Error CMSConcMarkMultipleConstraintFunc(size_t value, bool verbose);
-Flag::Error CMSPrecleanDenominatorConstraintFunc(uintx value, bool verbose);
-Flag::Error CMSPrecleanNumeratorConstraintFunc(uintx value, bool verbose);
-Flag::Error CMSSamplingGrainConstraintFunc(uintx value, bool verbose);
-Flag::Error CMSWorkQueueDrainThresholdConstraintFunc(uintx value, bool verbose);
-Flag::Error CMSBitMapYieldQuantumConstraintFunc(size_t value, bool verbose);
-Flag::Error MaxGCPauseMillisConstraintFunc(uintx value, bool verbose);
-Flag::Error GCPauseIntervalMillisConstraintFunc(uintx value, bool verbose);
-Flag::Error InitialBootClassLoaderMetaspaceSizeConstraintFunc(size_t value, bool verbose);
-Flag::Error InitialHeapSizeConstraintFunc(size_t value, bool verbose);
-Flag::Error MaxHeapSizeConstraintFunc(size_t value, bool verbose);
-Flag::Error HeapBaseMinAddressConstraintFunc(size_t value, bool verbose);
-Flag::Error NewSizeConstraintFunc(size_t value, bool verbose);
-Flag::Error MinTLABSizeConstraintFunc(size_t value, bool verbose);
-Flag::Error TLABSizeConstraintFunc(size_t value, bool verbose);
-Flag::Error TLABWasteIncrementConstraintFunc(uintx value, bool verbose);
-Flag::Error SurvivorRatioConstraintFunc(uintx value, bool verbose);
-Flag::Error MetaspaceSizeConstraintFunc(size_t value, bool verbose);
-Flag::Error MaxMetaspaceSizeConstraintFunc(size_t value, bool verbose);
-Flag::Error SurvivorAlignmentInBytesConstraintFunc(intx value, bool verbose);
-
-#endif /* SHARE_VM_RUNTIME_COMMANDLINEFLAGCONSTRAINTSGC_HPP */