src/hotspot/share/gc/shared/gcCause.cpp
author rkennke
Mon, 10 Dec 2018 15:47:44 +0100
changeset 52925 9c18c9d839d3
parent 52918 f94c7929a44b
child 55002 da9840e2f7da
permissions -rw-r--r--
8214259: Implementation: JEP 189: Shenandoah: A Low-Pause-Time Garbage Collector (Experimental) Reviewed-by: kvn, roland, shade, coleenp, lmesnik, pliden, jgeorge, ihse, erikj Contributed-by: Christine Flood <chf@redhat.com>, Aleksey Shipilev <shade@redhat.com>, Roland Westrelin <rwestrel@redhat.com>, Zhenygu Gu <zgu@redhat.com>, Andrew Haley <aph@redhat.com>, Andrew Dinn <adinn@redhat.com>, Mario Torre <mtorre@redhat.com>, Roman Kennke <rkennke@redhat.com>
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
     1
/*
52811
ff04b71bf6f1 8214388: CDS dumping fails with java heap fragmentation
iklam
parents: 50525
diff changeset
     2
 * Copyright (c) 2002, 2018, Oracle and/or its affiliates. All rights reserved.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
     3
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
489c9b5090e2 Initial load
duke
parents:
diff changeset
     4
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
     5
 * This code is free software; you can redistribute it and/or modify it
489c9b5090e2 Initial load
duke
parents:
diff changeset
     6
 * under the terms of the GNU General Public License version 2 only, as
489c9b5090e2 Initial load
duke
parents:
diff changeset
     7
 * published by the Free Software Foundation.
489c9b5090e2 Initial load
duke
parents:
diff changeset
     8
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
     9
 * This code is distributed in the hope that it will be useful, but WITHOUT
489c9b5090e2 Initial load
duke
parents:
diff changeset
    10
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
489c9b5090e2 Initial load
duke
parents:
diff changeset
    11
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
489c9b5090e2 Initial load
duke
parents:
diff changeset
    12
 * version 2 for more details (a copy is included in the LICENSE file that
489c9b5090e2 Initial load
duke
parents:
diff changeset
    13
 * accompanied this code).
489c9b5090e2 Initial load
duke
parents:
diff changeset
    14
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
    15
 * You should have received a copy of the GNU General Public License version
489c9b5090e2 Initial load
duke
parents:
diff changeset
    16
 * 2 along with this work; if not, write to the Free Software Foundation,
489c9b5090e2 Initial load
duke
parents:
diff changeset
    17
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
489c9b5090e2 Initial load
duke
parents:
diff changeset
    18
 *
5547
f4b087cbb361 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 1
diff changeset
    19
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
f4b087cbb361 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 1
diff changeset
    20
 * or visit www.oracle.com if you need additional information or have any
f4b087cbb361 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 1
diff changeset
    21
 * questions.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    22
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
    23
 */
489c9b5090e2 Initial load
duke
parents:
diff changeset
    24
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6058
diff changeset
    25
#include "precompiled.hpp"
30764
fec48bf5a827 8079792: GC directory structure cleanup
pliden
parents: 28935
diff changeset
    26
#include "gc/shared/gcCause.hpp"
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    27
489c9b5090e2 Initial load
duke
parents:
diff changeset
    28
const char* GCCause::to_string(GCCause::Cause cause) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    29
  switch (cause) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    30
    case _java_lang_system_gc:
489c9b5090e2 Initial load
duke
parents:
diff changeset
    31
      return "System.gc()";
489c9b5090e2 Initial load
duke
parents:
diff changeset
    32
489c9b5090e2 Initial load
duke
parents:
diff changeset
    33
    case _full_gc_alot:
489c9b5090e2 Initial load
duke
parents:
diff changeset
    34
      return "FullGCAlot";
489c9b5090e2 Initial load
duke
parents:
diff changeset
    35
489c9b5090e2 Initial load
duke
parents:
diff changeset
    36
    case _scavenge_alot:
489c9b5090e2 Initial load
duke
parents:
diff changeset
    37
      return "ScavengeAlot";
489c9b5090e2 Initial load
duke
parents:
diff changeset
    38
489c9b5090e2 Initial load
duke
parents:
diff changeset
    39
    case _allocation_profiler:
489c9b5090e2 Initial load
duke
parents:
diff changeset
    40
      return "Allocation Profiler";
489c9b5090e2 Initial load
duke
parents:
diff changeset
    41
489c9b5090e2 Initial load
duke
parents:
diff changeset
    42
    case _jvmti_force_gc:
489c9b5090e2 Initial load
duke
parents:
diff changeset
    43
      return "JvmtiEnv ForceGarbageCollection";
489c9b5090e2 Initial load
duke
parents:
diff changeset
    44
489c9b5090e2 Initial load
duke
parents:
diff changeset
    45
    case _gc_locker:
489c9b5090e2 Initial load
duke
parents:
diff changeset
    46
      return "GCLocker Initiated GC";
489c9b5090e2 Initial load
duke
parents:
diff changeset
    47
489c9b5090e2 Initial load
duke
parents:
diff changeset
    48
    case _heap_inspection:
489c9b5090e2 Initial load
duke
parents:
diff changeset
    49
      return "Heap Inspection Initiated GC";
489c9b5090e2 Initial load
duke
parents:
diff changeset
    50
489c9b5090e2 Initial load
duke
parents:
diff changeset
    51
    case _heap_dump:
489c9b5090e2 Initial load
duke
parents:
diff changeset
    52
      return "Heap Dump Initiated GC";
489c9b5090e2 Initial load
duke
parents:
diff changeset
    53
26183
bbe259d3c8bc 8055098: WB API should be extended to provide information about size and age of object.
tschatzl
parents: 22234
diff changeset
    54
    case _wb_young_gc:
bbe259d3c8bc 8055098: WB API should be extended to provide information about size and age of object.
tschatzl
parents: 22234
diff changeset
    55
      return "WhiteBox Initiated Young GC";
bbe259d3c8bc 8055098: WB API should be extended to provide information about size and age of object.
tschatzl
parents: 22234
diff changeset
    56
27900
d24cd7a1ed38 8065579: WB method to start G1 concurrent mark cycle should be introduced
tschatzl
parents: 27008
diff changeset
    57
    case _wb_conc_mark:
d24cd7a1ed38 8065579: WB method to start G1 concurrent mark cycle should be introduced
tschatzl
parents: 27008
diff changeset
    58
      return "WhiteBox Initiated Concurrent Mark";
d24cd7a1ed38 8065579: WB method to start G1 concurrent mark cycle should be introduced
tschatzl
parents: 27008
diff changeset
    59
37149
f025738bbada 8152113: Remove _last_ditch_collection GC-cause and avoid expanding heap on Metaspace OOM
sjohanss
parents: 31032
diff changeset
    60
    case _wb_full_gc:
f025738bbada 8152113: Remove _last_ditch_collection GC-cause and avoid expanding heap on Metaspace OOM
sjohanss
parents: 31032
diff changeset
    61
      return "WhiteBox Initiated Full GC";
f025738bbada 8152113: Remove _last_ditch_collection GC-cause and avoid expanding heap on Metaspace OOM
sjohanss
parents: 31032
diff changeset
    62
52811
ff04b71bf6f1 8214388: CDS dumping fails with java heap fragmentation
iklam
parents: 50525
diff changeset
    63
    case _archive_time_gc:
ff04b71bf6f1 8214388: CDS dumping fails with java heap fragmentation
iklam
parents: 50525
diff changeset
    64
      return "Full GC for -Xshare:dump";
ff04b71bf6f1 8214388: CDS dumping fails with java heap fragmentation
iklam
parents: 50525
diff changeset
    65
10998
0f494e39593d 7110190: GCCause::to_string missing case for _adaptive_size_policy
brutisso
parents: 8295
diff changeset
    66
    case _no_gc:
0f494e39593d 7110190: GCCause::to_string missing case for _adaptive_size_policy
brutisso
parents: 8295
diff changeset
    67
      return "No GC";
0f494e39593d 7110190: GCCause::to_string missing case for _adaptive_size_policy
brutisso
parents: 8295
diff changeset
    68
0f494e39593d 7110190: GCCause::to_string missing case for _adaptive_size_policy
brutisso
parents: 8295
diff changeset
    69
    case _allocation_failure:
0f494e39593d 7110190: GCCause::to_string missing case for _adaptive_size_policy
brutisso
parents: 8295
diff changeset
    70
      return "Allocation Failure";
0f494e39593d 7110190: GCCause::to_string missing case for _adaptive_size_policy
brutisso
parents: 8295
diff changeset
    71
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    72
    case _tenured_generation_full:
489c9b5090e2 Initial load
duke
parents:
diff changeset
    73
      return "Tenured Generation Full";
489c9b5090e2 Initial load
duke
parents:
diff changeset
    74
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 11576
diff changeset
    75
    case _metadata_GC_threshold:
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 11576
diff changeset
    76
      return "Metadata GC Threshold";
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    77
37149
f025738bbada 8152113: Remove _last_ditch_collection GC-cause and avoid expanding heap on Metaspace OOM
sjohanss
parents: 31032
diff changeset
    78
    case _metadata_GC_clear_soft_refs:
f025738bbada 8152113: Remove _last_ditch_collection GC-cause and avoid expanding heap on Metaspace OOM
sjohanss
parents: 31032
diff changeset
    79
      return "Metadata GC Clear Soft References";
f025738bbada 8152113: Remove _last_ditch_collection GC-cause and avoid expanding heap on Metaspace OOM
sjohanss
parents: 31032
diff changeset
    80
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    81
    case _cms_generation_full:
489c9b5090e2 Initial load
duke
parents:
diff changeset
    82
      return "CMS Generation Full";
489c9b5090e2 Initial load
duke
parents:
diff changeset
    83
489c9b5090e2 Initial load
duke
parents:
diff changeset
    84
    case _cms_initial_mark:
489c9b5090e2 Initial load
duke
parents:
diff changeset
    85
      return "CMS Initial Mark";
489c9b5090e2 Initial load
duke
parents:
diff changeset
    86
489c9b5090e2 Initial load
duke
parents:
diff changeset
    87
    case _cms_final_remark:
489c9b5090e2 Initial load
duke
parents:
diff changeset
    88
      return "CMS Final Remark";
489c9b5090e2 Initial load
duke
parents:
diff changeset
    89
18025
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 13728
diff changeset
    90
    case _cms_concurrent_mark:
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 13728
diff changeset
    91
      return "CMS Concurrent Mark";
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 13728
diff changeset
    92
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    93
    case _old_generation_expanded_on_last_scavenge:
489c9b5090e2 Initial load
duke
parents:
diff changeset
    94
      return "Old Generation Expanded On Last Scavenge";
489c9b5090e2 Initial load
duke
parents:
diff changeset
    95
489c9b5090e2 Initial load
duke
parents:
diff changeset
    96
    case _old_generation_too_full_to_scavenge:
489c9b5090e2 Initial load
duke
parents:
diff changeset
    97
      return "Old Generation Too Full To Scavenge";
489c9b5090e2 Initial load
duke
parents:
diff changeset
    98
10998
0f494e39593d 7110190: GCCause::to_string missing case for _adaptive_size_policy
brutisso
parents: 8295
diff changeset
    99
    case _adaptive_size_policy:
0f494e39593d 7110190: GCCause::to_string missing case for _adaptive_size_policy
brutisso
parents: 8295
diff changeset
   100
      return "Ergonomics";
0f494e39593d 7110190: GCCause::to_string missing case for _adaptive_size_policy
brutisso
parents: 8295
diff changeset
   101
6058
9c9aec6ab47d 6944166: G1: explicit GCs are not always handled correctly
tonyp
parents: 5547
diff changeset
   102
    case _g1_inc_collection_pause:
9c9aec6ab47d 6944166: G1: explicit GCs are not always handled correctly
tonyp
parents: 5547
diff changeset
   103
      return "G1 Evacuation Pause";
9c9aec6ab47d 6944166: G1: explicit GCs are not always handled correctly
tonyp
parents: 5547
diff changeset
   104
11576
e0bef5ca4602 6976060: G1: humongous object allocations should initiate marking cycles when necessary
brutisso
parents: 10998
diff changeset
   105
    case _g1_humongous_allocation:
e0bef5ca4602 6976060: G1: humongous object allocations should initiate marking cycles when necessary
brutisso
parents: 10998
diff changeset
   106
      return "G1 Humongous Allocation";
e0bef5ca4602 6976060: G1: humongous object allocations should initiate marking cycles when necessary
brutisso
parents: 10998
diff changeset
   107
52918
f94c7929a44b 8212657: Implementation of JDK-8204089 Promptly Return Unused Committed Memory from G1
tschatzl
parents: 52811
diff changeset
   108
    case _g1_periodic_collection:
f94c7929a44b 8212657: Implementation of JDK-8204089 Promptly Return Unused Committed Memory from G1
tschatzl
parents: 52811
diff changeset
   109
      return "G1 Periodic Collection";
f94c7929a44b 8212657: Implementation of JDK-8204089 Promptly Return Unused Committed Memory from G1
tschatzl
parents: 52811
diff changeset
   110
31032
8e72621ca186 8072913: [REDO] GCCause should distinguish jcmd GC.run from System.gc()
ysuenaga
parents: 30764
diff changeset
   111
    case _dcmd_gc_run:
8e72621ca186 8072913: [REDO] GCCause should distinguish jcmd GC.run from System.gc()
ysuenaga
parents: 30764
diff changeset
   112
      return "Diagnostic Command";
8e72621ca186 8072913: [REDO] GCCause should distinguish jcmd GC.run from System.gc()
ysuenaga
parents: 30764
diff changeset
   113
52925
9c18c9d839d3 8214259: Implementation: JEP 189: Shenandoah: A Low-Pause-Time Garbage Collector (Experimental)
rkennke
parents: 52918
diff changeset
   114
    case _shenandoah_allocation_failure_evac:
9c18c9d839d3 8214259: Implementation: JEP 189: Shenandoah: A Low-Pause-Time Garbage Collector (Experimental)
rkennke
parents: 52918
diff changeset
   115
      return "Allocation Failure During Evacuation";
9c18c9d839d3 8214259: Implementation: JEP 189: Shenandoah: A Low-Pause-Time Garbage Collector (Experimental)
rkennke
parents: 52918
diff changeset
   116
9c18c9d839d3 8214259: Implementation: JEP 189: Shenandoah: A Low-Pause-Time Garbage Collector (Experimental)
rkennke
parents: 52918
diff changeset
   117
    case _shenandoah_stop_vm:
9c18c9d839d3 8214259: Implementation: JEP 189: Shenandoah: A Low-Pause-Time Garbage Collector (Experimental)
rkennke
parents: 52918
diff changeset
   118
      return "Stopping VM";
9c18c9d839d3 8214259: Implementation: JEP 189: Shenandoah: A Low-Pause-Time Garbage Collector (Experimental)
rkennke
parents: 52918
diff changeset
   119
9c18c9d839d3 8214259: Implementation: JEP 189: Shenandoah: A Low-Pause-Time Garbage Collector (Experimental)
rkennke
parents: 52918
diff changeset
   120
    case _shenandoah_concurrent_gc:
9c18c9d839d3 8214259: Implementation: JEP 189: Shenandoah: A Low-Pause-Time Garbage Collector (Experimental)
rkennke
parents: 52918
diff changeset
   121
      return "Concurrent GC";
9c18c9d839d3 8214259: Implementation: JEP 189: Shenandoah: A Low-Pause-Time Garbage Collector (Experimental)
rkennke
parents: 52918
diff changeset
   122
9c18c9d839d3 8214259: Implementation: JEP 189: Shenandoah: A Low-Pause-Time Garbage Collector (Experimental)
rkennke
parents: 52918
diff changeset
   123
    case _shenandoah_traversal_gc:
9c18c9d839d3 8214259: Implementation: JEP 189: Shenandoah: A Low-Pause-Time Garbage Collector (Experimental)
rkennke
parents: 52918
diff changeset
   124
      return "Traversal GC";
9c18c9d839d3 8214259: Implementation: JEP 189: Shenandoah: A Low-Pause-Time Garbage Collector (Experimental)
rkennke
parents: 52918
diff changeset
   125
9c18c9d839d3 8214259: Implementation: JEP 189: Shenandoah: A Low-Pause-Time Garbage Collector (Experimental)
rkennke
parents: 52918
diff changeset
   126
    case _shenandoah_upgrade_to_full_gc:
9c18c9d839d3 8214259: Implementation: JEP 189: Shenandoah: A Low-Pause-Time Garbage Collector (Experimental)
rkennke
parents: 52918
diff changeset
   127
      return "Upgrade To Full GC";
9c18c9d839d3 8214259: Implementation: JEP 189: Shenandoah: A Low-Pause-Time Garbage Collector (Experimental)
rkennke
parents: 52918
diff changeset
   128
50525
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental)
pliden
parents: 49054
diff changeset
   129
    case _z_timer:
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental)
pliden
parents: 49054
diff changeset
   130
      return "Timer";
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental)
pliden
parents: 49054
diff changeset
   131
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental)
pliden
parents: 49054
diff changeset
   132
    case _z_warmup:
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental)
pliden
parents: 49054
diff changeset
   133
      return "Warmup";
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental)
pliden
parents: 49054
diff changeset
   134
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental)
pliden
parents: 49054
diff changeset
   135
    case _z_allocation_rate:
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental)
pliden
parents: 49054
diff changeset
   136
      return "Allocation Rate";
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental)
pliden
parents: 49054
diff changeset
   137
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental)
pliden
parents: 49054
diff changeset
   138
    case _z_allocation_stall:
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental)
pliden
parents: 49054
diff changeset
   139
      return "Allocation Stall";
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental)
pliden
parents: 49054
diff changeset
   140
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental)
pliden
parents: 49054
diff changeset
   141
    case _z_proactive:
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental)
pliden
parents: 49054
diff changeset
   142
      return "Proactive";
767cdb97f103 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental)
pliden
parents: 49054
diff changeset
   143
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   144
    case _last_gc_cause:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   145
      return "ILLEGAL VALUE - last gc cause - ILLEGAL VALUE";
489c9b5090e2 Initial load
duke
parents:
diff changeset
   146
489c9b5090e2 Initial load
duke
parents:
diff changeset
   147
    default:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   148
      return "unknown GCCause";
489c9b5090e2 Initial load
duke
parents:
diff changeset
   149
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   150
  ShouldNotReachHere();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   151
}