Mercurial > hg > truffle
annotate src/share/vm/services/nmtDCmd.cpp @ 7412:3f84e17b6bca
8004802: jcmd VM.native_memory baseline=false crashes VM
Summary: NMT has to check option's value also to determine which command to execute
Reviewed-by: acorn, coleenp, hseigel
| author | zgu |
|---|---|
| date | Mon, 17 Dec 2012 13:14:02 -0500 |
| parents | d2a62e0f25eb |
| children | 06db4c0afbf3 |
| rev | line source |
|---|---|
| 6197 | 1 /* |
| 2 * Copyright (c) 2012, 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 */ | |
| 24 #include "precompiled.hpp" | |
| 25 #include "services/nmtDCmd.hpp" | |
| 26 #include "services/memReporter.hpp" | |
| 27 #include "services/memTracker.hpp" | |
| 28 #include "utilities/globalDefinitions.hpp" | |
| 29 | |
| 30 NMTDCmd::NMTDCmd(outputStream* output, | |
| 31 bool heap): DCmdWithParser(output, heap), | |
| 32 _summary("summary", "request runtime to report current memory summary, " \ | |
| 33 "which includes total reserved and committed memory, along " \ | |
| 34 "with memory usage summary by each subsytem.", | |
| 35 "BOOLEAN", false, "false"), | |
| 36 _detail("detail", "request runtime to report memory allocation >= " | |
| 37 "1K by each callsite.", | |
| 38 "BOOLEAN", false, "false"), | |
| 39 _baseline("baseline", "request runtime to baseline current memory usage, " \ | |
| 40 "so it can be compared against in later time.", | |
| 41 "BOOLEAN", false, "false"), | |
| 42 _summary_diff("summary.diff", "request runtime to report memory summary " \ | |
| 43 "comparison against previous baseline.", | |
| 44 "BOOLEAN", false, "false"), | |
| 45 _detail_diff("detail.diff", "request runtime to report memory detail " \ | |
| 46 "comparison against previous baseline, which shows the memory " \ | |
| 47 "allocation activities at different callsites.", | |
| 48 "BOOLEAN", false, "false"), | |
| 49 _shutdown("shutdown", "request runtime to shutdown itself and free the " \ | |
| 50 "memory used by runtime.", | |
| 51 "BOOLEAN", false, "false"), | |
| 52 #ifndef PRODUCT | |
| 53 _debug("debug", "print tracker statistics. Debug only, not thread safe", \ | |
| 54 "BOOLEAN", false, "false"), | |
| 55 #endif | |
| 56 _scale("scale", "Memory usage in which scale, KB, MB or GB", | |
| 57 "STRING", false, "KB") { | |
| 58 _dcmdparser.add_dcmd_option(&_summary); | |
| 59 _dcmdparser.add_dcmd_option(&_detail); | |
| 60 _dcmdparser.add_dcmd_option(&_baseline); | |
| 61 _dcmdparser.add_dcmd_option(&_summary_diff); | |
| 62 _dcmdparser.add_dcmd_option(&_detail_diff); | |
| 63 _dcmdparser.add_dcmd_option(&_shutdown); | |
| 64 #ifndef PRODUCT | |
| 65 _dcmdparser.add_dcmd_option(&_debug); | |
| 66 #endif | |
| 67 _dcmdparser.add_dcmd_option(&_scale); | |
| 68 } | |
| 69 | |
| 70 void NMTDCmd::execute(TRAPS) { | |
| 71 const char* scale_value = _scale.value(); | |
| 72 size_t scale_unit; | |
| 73 if (strcmp(scale_value, "KB") == 0 || strcmp(scale_value, "kb") == 0) { | |
| 74 scale_unit = K; | |
| 75 } else if (strcmp(scale_value, "MB") == 0 || | |
| 76 strcmp(scale_value, "mb") == 0) { | |
| 77 scale_unit = M; | |
| 78 } else if (strcmp(scale_value, "GB") == 0 || | |
| 79 strcmp(scale_value, "gb") == 0) { | |
| 80 scale_unit = G; | |
| 81 } else { | |
| 82 output()->print_cr("Incorrect scale value: %s", scale_value); | |
| 83 return; | |
| 84 } | |
| 85 | |
| 86 int nopt = 0; | |
|
7412
3f84e17b6bca
8004802: jcmd VM.native_memory baseline=false crashes VM
zgu
parents:
6197
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changeset
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87 if(_summary.is_set() && _summary.value()) { ++nopt; } |
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3f84e17b6bca
8004802: jcmd VM.native_memory baseline=false crashes VM
zgu
parents:
6197
diff
changeset
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88 if(_detail.is_set() && _detail.value()) { ++nopt; } |
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3f84e17b6bca
8004802: jcmd VM.native_memory baseline=false crashes VM
zgu
parents:
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diff
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89 if(_baseline.is_set() && _baseline.value()) { ++nopt; } |
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3f84e17b6bca
8004802: jcmd VM.native_memory baseline=false crashes VM
zgu
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90 if(_summary_diff.is_set() && _summary_diff.value()) { ++nopt; } |
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8004802: jcmd VM.native_memory baseline=false crashes VM
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91 if(_detail_diff.is_set() && _detail_diff.value()) { ++nopt; } |
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3f84e17b6bca
8004802: jcmd VM.native_memory baseline=false crashes VM
zgu
parents:
6197
diff
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92 if(_shutdown.is_set() && _shutdown.value()) { ++nopt; } |
| 6197 | 93 #ifndef PRODUCT |
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8004802: jcmd VM.native_memory baseline=false crashes VM
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94 if(_debug.is_set() && _debug.value()) { ++nopt; } |
| 6197 | 95 #endif |
| 96 | |
| 97 if(nopt > 1) { | |
| 98 output()->print_cr("At most one of the following option can be specified: " \ | |
| 99 "summary, detail, baseline, summary.diff, detail.diff, shutdown" | |
| 100 #ifndef PRODUCT | |
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101 ", debug" |
| 6197 | 102 #endif |
| 103 ); | |
| 104 return; | |
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8004802: jcmd VM.native_memory baseline=false crashes VM
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105 } else if (nopt == 0) { |
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3f84e17b6bca
8004802: jcmd VM.native_memory baseline=false crashes VM
zgu
parents:
6197
diff
changeset
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106 if (_summary.is_set()) { |
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3f84e17b6bca
8004802: jcmd VM.native_memory baseline=false crashes VM
zgu
parents:
6197
diff
changeset
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107 output()->print_cr("No command to execute"); |
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8004802: jcmd VM.native_memory baseline=false crashes VM
zgu
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108 return; |
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3f84e17b6bca
8004802: jcmd VM.native_memory baseline=false crashes VM
zgu
parents:
6197
diff
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109 } else { |
| 6197 | 110 _summary.set_value(true); |
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7412
3f84e17b6bca
8004802: jcmd VM.native_memory baseline=false crashes VM
zgu
parents:
6197
diff
changeset
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111 } |
| 6197 | 112 } |
| 113 | |
| 114 #ifndef PRODUCT | |
| 115 if (_debug.value()) { | |
| 116 output()->print_cr("debug command is NOT thread-safe, may cause crash"); | |
| 117 MemTracker::print_tracker_stats(output()); | |
| 118 return; | |
| 119 } | |
| 120 #endif | |
| 121 | |
| 122 // native memory tracking has to be on | |
| 123 if (!MemTracker::is_on() || MemTracker::shutdown_in_progress()) { | |
| 124 // if it is not on, what's the reason? | |
| 125 output()->print_cr(MemTracker::reason()); | |
| 126 return; | |
| 127 } | |
| 128 | |
| 129 if (_summary.value()) { | |
| 130 BaselineTTYOutputer outputer(output()); | |
| 131 MemTracker::print_memory_usage(outputer, scale_unit, true); | |
| 132 } else if (_detail.value()) { | |
| 133 BaselineTTYOutputer outputer(output()); | |
| 134 MemTracker::print_memory_usage(outputer, scale_unit, false); | |
| 135 } else if (_baseline.value()) { | |
| 136 if (MemTracker::baseline()) { | |
| 137 output()->print_cr("Successfully baselined."); | |
| 138 } else { | |
| 139 output()->print_cr("Baseline failed."); | |
| 140 } | |
| 141 } else if (_summary_diff.value()) { | |
| 142 if (MemTracker::has_baseline()) { | |
| 143 BaselineTTYOutputer outputer(output()); | |
| 144 MemTracker::compare_memory_usage(outputer, scale_unit, true); | |
| 145 } else { | |
| 146 output()->print_cr("No baseline to compare, run 'baseline' command first"); | |
| 147 } | |
| 148 } else if (_detail_diff.value()) { | |
| 149 if (MemTracker::has_baseline()) { | |
| 150 BaselineTTYOutputer outputer(output()); | |
| 151 MemTracker::compare_memory_usage(outputer, scale_unit, false); | |
| 152 } else { | |
| 153 output()->print_cr("No baseline to compare to, run 'baseline' command first"); | |
| 154 } | |
| 155 } else if (_shutdown.value()) { | |
| 156 MemTracker::shutdown(MemTracker::NMT_shutdown_user); | |
| 157 output()->print_cr("Shutdown is in progress, it will take a few moments to " \ | |
| 158 "completely shutdown"); | |
| 159 } else { | |
| 160 ShouldNotReachHere(); | |
| 161 output()->print_cr("Unknown command"); | |
| 162 } | |
| 163 } | |
| 164 | |
| 165 int NMTDCmd::num_arguments() { | |
| 166 ResourceMark rm; | |
| 167 NMTDCmd* dcmd = new NMTDCmd(NULL, false); | |
| 168 if (dcmd != NULL) { | |
| 169 DCmdMark mark(dcmd); | |
| 170 return dcmd->_dcmdparser.num_arguments(); | |
| 171 } else { | |
| 172 return 0; | |
| 173 } | |
| 174 } | |
| 175 |