Mercurial > hg > truffle
view src/cpu/sparc/vm/c1_globals_sparc.hpp @ 1837:c99c53f07c14
6692906: CMS: parallel concurrent marking may be prone to hanging or stalling mutators for periods of time
Summary: Inserted missing yield(check)s in closures used during the work-stealing phase of parallel concurrent marking, a missing synchronous yield-request in the cms perm gen allocation path, and a terminator-terminator for the offer_termination invocation that monitors the yield status of the concurrent marking task. Elaborated some documentation comments and made some task queue termination loop flags configurable at start-up to aid debugging in the field.
Reviewed-by: jmasa, johnc, poonam
author | ysr |
---|---|
date | Wed, 29 Sep 2010 16:17:02 -0700 |
parents | c18cbe5936b8 |
children | d5d065957597 |
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/* * Copyright (c) 2000, 2007, 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. * */ // Sets the default values for platform dependent flags used by the client compiler. // (see c1_globals.hpp) #ifndef TIERED define_pd_global(bool, BackgroundCompilation, true ); define_pd_global(bool, CICompileOSR, true ); define_pd_global(bool, InlineIntrinsics, true ); define_pd_global(bool, PreferInterpreterNativeStubs, false); define_pd_global(bool, ProfileTraps, false); define_pd_global(bool, UseOnStackReplacement, true ); define_pd_global(bool, TieredCompilation, false); define_pd_global(intx, CompileThreshold, 1000 ); // Design center runs on 1.3.1 define_pd_global(intx, Tier2CompileThreshold, 1500 ); define_pd_global(intx, Tier3CompileThreshold, 2000 ); define_pd_global(intx, Tier4CompileThreshold, 2500 ); define_pd_global(intx, BackEdgeThreshold, 100000); define_pd_global(intx, Tier2BackEdgeThreshold, 100000); define_pd_global(intx, Tier3BackEdgeThreshold, 100000); define_pd_global(intx, Tier4BackEdgeThreshold, 100000); define_pd_global(intx, OnStackReplacePercentage, 1400 ); define_pd_global(bool, UseTLAB, true ); define_pd_global(bool, ProfileInterpreter, false); define_pd_global(intx, FreqInlineSize, 325 ); define_pd_global(bool, ResizeTLAB, true ); define_pd_global(intx, ReservedCodeCacheSize, 32*M ); define_pd_global(intx, CodeCacheExpansionSize, 32*K ); define_pd_global(uintx,CodeCacheMinBlockLength, 1); define_pd_global(uintx,PermSize, 12*M ); define_pd_global(uintx,MaxPermSize, 64*M ); define_pd_global(bool, NeverActAsServerClassMachine, true ); define_pd_global(intx, NewSizeThreadIncrease, 16*K ); define_pd_global(uint64_t,MaxRAM, 1ULL*G); define_pd_global(intx, InitialCodeCacheSize, 160*K); #endif // !TIERED define_pd_global(bool, UseTypeProfile, false); define_pd_global(bool, RoundFPResults, false); define_pd_global(bool, LIRFillDelaySlots, true ); define_pd_global(bool, OptimizeSinglePrecision, false); define_pd_global(bool, CSEArrayLength, true ); define_pd_global(bool, TwoOperandLIRForm, false); define_pd_global(intx, SafepointPollOffset, 0 );