jdk8-mips64-public/hotspot: src/share/vm/gc_implementation/parallelScavenge/vmPSOperations.cpp@7246a374a9f2

6458402: 3 jvmti tests fail with CMS and +ExplicitGCInvokesConcurrent
Summary: Make JvmtiGCMark safe to run non-safepoint and instrument CMS
Reviewed-by: ysr, dcubed

     1 /*

     2  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  *

    23  */

    25 #include "precompiled.hpp"

    26 #include "gc_implementation/parallelScavenge/parallelScavengeHeap.inline.hpp"

    27 #include "gc_implementation/parallelScavenge/psMarkSweep.hpp"

    28 #include "gc_implementation/parallelScavenge/psScavenge.hpp"

    29 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp"

    30 #include "gc_implementation/parallelScavenge/vmPSOperations.hpp"

    31 #include "memory/gcLocker.inline.hpp"

    32 #include "utilities/dtrace.hpp"

    34 // The following methods are used by the parallel scavenge collector

    35 VM_ParallelGCFailedAllocation::VM_ParallelGCFailedAllocation(size_t size,

    36   bool is_tlab, unsigned int gc_count) :

    37   VM_GC_Operation(gc_count),

    38   _size(size),

    39   _is_tlab(is_tlab),

    40   _result(NULL)

    41 {

    42 }

    44 void VM_ParallelGCFailedAllocation::doit() {

    45   SvcGCMarker sgcm(SvcGCMarker::MINOR);

    47   ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();

    48   assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "must be a ParallelScavengeHeap");

    50   GCCauseSetter gccs(heap, _gc_cause);

    51   _result = heap->failed_mem_allocate(_size, _is_tlab);

    53   if (_result == NULL && GC_locker::is_active_and_needs_gc()) {

    54     set_gc_locked();

    55   }

    56 }

    58 VM_ParallelGCFailedPermanentAllocation::VM_ParallelGCFailedPermanentAllocation(size_t size,

    59   unsigned int gc_count, unsigned int full_gc_count) :

    60   VM_GC_Operation(gc_count, full_gc_count, true /* full */),

    61   _size(size),

    62   _result(NULL)

    63 {

    64 }

    66 void VM_ParallelGCFailedPermanentAllocation::doit() {

    67   SvcGCMarker sgcm(SvcGCMarker::FULL);

    69   ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();

    70   assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "must be a ParallelScavengeHeap");

    72   GCCauseSetter gccs(heap, _gc_cause);

    73   _result = heap->failed_permanent_mem_allocate(_size);

    74   if (_result == NULL && GC_locker::is_active_and_needs_gc()) {

    75     set_gc_locked();

    76   }

    77 }

    79 // Only used for System.gc() calls

    80 VM_ParallelGCSystemGC::VM_ParallelGCSystemGC(unsigned int gc_count,

    81                                              unsigned int full_gc_count,

    82                                              GCCause::Cause gc_cause) :

    83   VM_GC_Operation(gc_count, full_gc_count, true /* full */)

    84 {

    85   _gc_cause = gc_cause;

    86 }

    88 void VM_ParallelGCSystemGC::doit() {

    89   SvcGCMarker sgcm(SvcGCMarker::FULL);

    91   ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();

    92   assert(heap->kind() == CollectedHeap::ParallelScavengeHeap,

    93     "must be a ParallelScavengeHeap");

    95   GCCauseSetter gccs(heap, _gc_cause);

    96   if (_gc_cause == GCCause::_gc_locker

    97       DEBUG_ONLY(|| _gc_cause == GCCause::_scavenge_alot)) {

    98     // If (and only if) the scavenge fails, this will invoke a full gc.

    99     heap->invoke_scavenge();

   100   } else {

   101     heap->invoke_full_gc(false);

   102   }

   103 }

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

src/share/vm/gc_implementation/parallelScavenge/vmPSOperations.cpp@7246a374a9f2

src/share/vm/gc_implementation/parallelScavenge/vmPSOperations.cpp