jdk8-mips64-public/hotspot: src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.inline.hpp@39b01ab7035a

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

     1 /*

     2  * Copyright 2006 Sun Microsystems, Inc.  All Rights Reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  *

    23  */

    25 inline size_t ParallelScavengeHeap::total_invocations()

    26 {

    27   return UseParallelOldGC ? PSParallelCompact::total_invocations() :

    28     PSMarkSweep::total_invocations();

    29 }

    31 inline void ParallelScavengeHeap::invoke_scavenge()

    32 {

    33   PSScavenge::invoke();

    34 }

    36 inline void ParallelScavengeHeap::invoke_full_gc(bool maximum_compaction)

    37 {

    38   if (UseParallelOldGC) {

    39     PSParallelCompact::invoke(maximum_compaction);

    40   } else {

    41     PSMarkSweep::invoke(maximum_compaction);

    42   }

    43 }

    45 inline bool ParallelScavengeHeap::is_in_young(oop p) {

    46   return young_gen()->is_in_reserved(p);

    47 }

    49 inline bool ParallelScavengeHeap::is_in_old_or_perm(oop p) {

    50   return old_gen()->is_in_reserved(p) || perm_gen()->is_in_reserved(p);

    51 }

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.inline.hpp@39b01ab7035a

src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.inline.hpp