Mercurial > hg > graal-compiler
annotate src/share/vm/gc_implementation/parallelScavenge/vmPSOperations.cpp @ 5964:21595f05bc93
7146246: G1: expose some of the -XX flags that drive which old regions to collect during mixed GCs
Summary: Make two G1 cmd line flags available in product builds: G1HeapWastePercent (previously called: G1OldReclaimableThresholdPercent) and G1MixedGCCountTarget (previous called: G1MaxMixedGCNum). Also changed the default of the former from 1% to 5% and the default for G1OldCSetRegionLiveThresholdPercent to 90%.
Reviewed-by: azeemj, jwilhelm, johnc
author | tonyp |
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date | Fri, 23 Mar 2012 10:53:19 -0400 |
parents | c9ca3f51cf41 |
children | da91efe96a93 |
rev | line source |
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0 | 1 /* |
2225 | 2 * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 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" | |
0 | 33 |
34 // The following methods are used by the parallel scavenge collector | |
35 VM_ParallelGCFailedAllocation::VM_ParallelGCFailedAllocation(size_t size, | |
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36 unsigned int gc_count) : |
2225 | 37 VM_GC_Operation(gc_count, GCCause::_allocation_failure), |
0 | 38 _size(size), |
39 _result(NULL) | |
40 { | |
41 } | |
42 | |
43 void VM_ParallelGCFailedAllocation::doit() { | |
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44 SvcGCMarker sgcm(SvcGCMarker::MINOR); |
0 | 45 |
46 ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap(); | |
47 assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "must be a ParallelScavengeHeap"); | |
48 | |
49 GCCauseSetter gccs(heap, _gc_cause); | |
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50 _result = heap->failed_mem_allocate(_size); |
0 | 51 |
52 if (_result == NULL && GC_locker::is_active_and_needs_gc()) { | |
53 set_gc_locked(); | |
54 } | |
55 } | |
56 | |
57 VM_ParallelGCFailedPermanentAllocation::VM_ParallelGCFailedPermanentAllocation(size_t size, | |
58 unsigned int gc_count, unsigned int full_gc_count) : | |
2225 | 59 VM_GC_Operation(gc_count, GCCause::_allocation_failure, full_gc_count, true /* full */), |
0 | 60 _size(size), |
61 _result(NULL) | |
62 { | |
63 } | |
64 | |
65 void VM_ParallelGCFailedPermanentAllocation::doit() { | |
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66 SvcGCMarker sgcm(SvcGCMarker::FULL); |
0 | 67 |
68 ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap(); | |
69 assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "must be a ParallelScavengeHeap"); | |
70 | |
71 GCCauseSetter gccs(heap, _gc_cause); | |
72 _result = heap->failed_permanent_mem_allocate(_size); | |
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73 if (_result == NULL && GC_locker::is_active_and_needs_gc()) { |
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74 set_gc_locked(); |
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75 } |
0 | 76 } |
77 | |
78 // Only used for System.gc() calls | |
79 VM_ParallelGCSystemGC::VM_ParallelGCSystemGC(unsigned int gc_count, | |
80 unsigned int full_gc_count, | |
81 GCCause::Cause gc_cause) : | |
2225 | 82 VM_GC_Operation(gc_count, gc_cause, full_gc_count, true /* full */) |
0 | 83 { |
84 } | |
85 | |
86 void VM_ParallelGCSystemGC::doit() { | |
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87 SvcGCMarker sgcm(SvcGCMarker::FULL); |
0 | 88 |
89 ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap(); | |
90 assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, | |
91 "must be a ParallelScavengeHeap"); | |
92 | |
93 GCCauseSetter gccs(heap, _gc_cause); | |
94 if (_gc_cause == GCCause::_gc_locker | |
95 DEBUG_ONLY(|| _gc_cause == GCCause::_scavenge_alot)) { | |
96 // If (and only if) the scavenge fails, this will invoke a full gc. | |
97 heap->invoke_scavenge(); | |
98 } else { | |
99 heap->invoke_full_gc(false); | |
100 } | |
101 } |