Mon, 06 Oct 2014 10:11:13 +0200
8059466: Force young GC to initiate marking cycle when stat update is requested
Summary: Enable yc to be forced for stat update.
Reviewed-by: mgerdin, jcoomes
1 /*
2 * Copyright (c) 2002, 2013, 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.
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23 */
25 #include "precompiled.hpp"
26 #include "gc_interface/gcCause.hpp"
28 const char* GCCause::to_string(GCCause::Cause cause) {
29 switch (cause) {
30 case _java_lang_system_gc:
31 return "System.gc()";
33 case _full_gc_alot:
34 return "FullGCAlot";
36 case _scavenge_alot:
37 return "ScavengeAlot";
39 case _allocation_profiler:
40 return "Allocation Profiler";
42 case _jvmti_force_gc:
43 return "JvmtiEnv ForceGarbageCollection";
45 case _gc_locker:
46 return "GCLocker Initiated GC";
48 case _heap_inspection:
49 return "Heap Inspection Initiated GC";
51 case _heap_dump:
52 return "Heap Dump Initiated GC";
54 case _wb_young_gc:
55 return "WhiteBox Initiated Young GC";
57 case _update_allocation_context_stats_inc:
58 case _update_allocation_context_stats_full:
59 return "Update Allocation Context Stats";
61 case _no_gc:
62 return "No GC";
64 case _allocation_failure:
65 return "Allocation Failure";
67 case _tenured_generation_full:
68 return "Tenured Generation Full";
70 case _metadata_GC_threshold:
71 return "Metadata GC Threshold";
73 case _cms_generation_full:
74 return "CMS Generation Full";
76 case _cms_initial_mark:
77 return "CMS Initial Mark";
79 case _cms_final_remark:
80 return "CMS Final Remark";
82 case _cms_concurrent_mark:
83 return "CMS Concurrent Mark";
85 case _old_generation_expanded_on_last_scavenge:
86 return "Old Generation Expanded On Last Scavenge";
88 case _old_generation_too_full_to_scavenge:
89 return "Old Generation Too Full To Scavenge";
91 case _adaptive_size_policy:
92 return "Ergonomics";
94 case _g1_inc_collection_pause:
95 return "G1 Evacuation Pause";
97 case _g1_humongous_allocation:
98 return "G1 Humongous Allocation";
100 case _last_ditch_collection:
101 return "Last ditch collection";
103 case _last_gc_cause:
104 return "ILLEGAL VALUE - last gc cause - ILLEGAL VALUE";
106 default:
107 return "unknown GCCause";
108 }
109 ShouldNotReachHere();
110 }