Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/shared/collectorCounters.hpp @ 14307:7ab52431bc9f
8020277: Young GC could be extremely slow due to assertion in ObjectStartArray::object_starts_in_range
8009462: Young GC's (ParNewGC and SerialGC) have unexpected variances.
Summary: Removed the assertion slowing down GC.
Reviewed-by: stefank, mgerdin
author | sjohanss |
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date | Mon, 20 Jan 2014 12:56:18 +0100 |
parents | b9a9ed0f8eeb |
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rev | line source |
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0 | 1 /* |
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7197424: update copyright year to match last edit in jdk8 hotspot repository
mikael
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2 * Copyright (c) 2002, 2012, 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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c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
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20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_GC_IMPLEMENTATION_SHARED_COLLECTORCOUNTERS_HPP |
26 #define SHARE_VM_GC_IMPLEMENTATION_SHARED_COLLECTORCOUNTERS_HPP | |
27 | |
28 #include "runtime/perfData.hpp" | |
29 | |
0 | 30 // CollectorCounters is a holder class for performance counters |
31 // that track a collector | |
32 | |
6197 | 33 class CollectorCounters: public CHeapObj<mtGC> { |
0 | 34 friend class VMStructs; |
35 | |
36 private: | |
37 PerfCounter* _invocations; | |
38 PerfCounter* _time; | |
39 PerfVariable* _last_entry_time; | |
40 PerfVariable* _last_exit_time; | |
41 | |
42 // Constant PerfData types don't need to retain a reference. | |
43 // However, it's a good idea to document them here. | |
44 // PerfStringConstant* _name; | |
45 | |
46 char* _name_space; | |
47 | |
48 public: | |
49 | |
50 CollectorCounters(const char* name, int ordinal); | |
51 | |
52 ~CollectorCounters() { | |
6197 | 53 if (_name_space != NULL) FREE_C_HEAP_ARRAY(char, _name_space, mtGC); |
0 | 54 } |
55 | |
56 inline PerfCounter* invocation_counter() const { return _invocations; } | |
57 | |
58 inline PerfCounter* time_counter() const { return _time; } | |
59 | |
60 inline PerfVariable* last_entry_counter() const { return _last_entry_time; } | |
61 | |
62 inline PerfVariable* last_exit_counter() const { return _last_exit_time; } | |
63 | |
64 const char* name_space() const { return _name_space; } | |
65 }; | |
66 | |
67 class TraceCollectorStats: public PerfTraceTimedEvent { | |
68 | |
69 protected: | |
70 CollectorCounters* _c; | |
71 | |
72 public: | |
73 inline TraceCollectorStats(CollectorCounters* c) : | |
74 PerfTraceTimedEvent(c->time_counter(), c->invocation_counter()), | |
75 _c(c) { | |
76 | |
77 if (UsePerfData) { | |
78 _c->last_entry_counter()->set_value(os::elapsed_counter()); | |
79 } | |
80 } | |
81 | |
82 inline ~TraceCollectorStats() { | |
83 if (UsePerfData) _c->last_exit_counter()->set_value(os::elapsed_counter()); | |
84 } | |
85 }; | |
1972 | 86 |
87 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_COLLECTORCOUNTERS_HPP |