Mercurial > hg > openjdk > hsx16
view src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.inline.hpp @ 944:aa001a20bd61
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
6889757: G1: enable card mark elision for initializing writes from compiled code (ReduceInitialCardMarks)
Summary: Defer the (compiler-elided) card-mark upon a slow-path allocation until after the store and before the next subsequent safepoint; G1 now answers yes to can_elide_tlab_write_barriers().
Reviewed-by: jcoomes, kvn, never
author | ysr |
---|---|
date | Fri, 16 Oct 2009 02:05:46 -0700 |
parents | a61af66fc99e |
children |
line wrap: on
line source
/* * Copyright 2006 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ inline size_t ParallelScavengeHeap::total_invocations() { return UseParallelOldGC ? PSParallelCompact::total_invocations() : PSMarkSweep::total_invocations(); } inline void ParallelScavengeHeap::invoke_scavenge() { PSScavenge::invoke(); } inline void ParallelScavengeHeap::invoke_full_gc(bool maximum_compaction) { if (UseParallelOldGC) { PSParallelCompact::invoke(maximum_compaction); } else { PSMarkSweep::invoke(maximum_compaction); } } inline bool ParallelScavengeHeap::is_in_young(oop p) { return young_gen()->is_in_reserved(p); } inline bool ParallelScavengeHeap::is_in_old_or_perm(oop p) { return old_gen()->is_in_reserved(p) || perm_gen()->is_in_reserved(p); }