Mercurial > hg > truffle
annotate src/share/vm/services/runtimeService.cpp @ 2177:3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
Summary: move symbols from permgen into C heap and reference count them
Reviewed-by: never, acorn, jmasa, stefank
| author | coleenp |
|---|---|
| date | Thu, 27 Jan 2011 16:11:27 -0800 |
| parents | f95d63e2154a |
| children | 436b4a3231bf |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
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2 * Copyright (c) 2003, 2010, 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 "classfile/classLoader.hpp" | |
| 27 #include "services/attachListener.hpp" | |
| 28 #include "services/management.hpp" | |
| 29 #include "services/runtimeService.hpp" | |
| 30 #include "utilities/dtrace.hpp" | |
| 31 #include "utilities/exceptions.hpp" | |
| 0 | 32 |
| 33 HS_DTRACE_PROBE_DECL(hs_private, safepoint__begin); | |
| 34 HS_DTRACE_PROBE_DECL(hs_private, safepoint__end); | |
| 35 | |
| 36 TimeStamp RuntimeService::_app_timer; | |
| 37 TimeStamp RuntimeService::_safepoint_timer; | |
| 38 PerfCounter* RuntimeService::_sync_time_ticks = NULL; | |
| 39 PerfCounter* RuntimeService::_total_safepoints = NULL; | |
| 40 PerfCounter* RuntimeService::_safepoint_time_ticks = NULL; | |
| 41 PerfCounter* RuntimeService::_application_time_ticks = NULL; | |
| 42 PerfCounter* RuntimeService::_thread_interrupt_signaled_count = NULL; | |
| 43 PerfCounter* RuntimeService::_interrupted_before_count = NULL; | |
| 44 PerfCounter* RuntimeService::_interrupted_during_count = NULL; | |
| 45 | |
| 46 void RuntimeService::init() { | |
| 47 // Make sure the VM version is initialized | |
| 48 Abstract_VM_Version::initialize(); | |
| 49 | |
| 50 if (UsePerfData) { | |
| 51 EXCEPTION_MARK; | |
| 52 | |
| 53 _sync_time_ticks = | |
| 54 PerfDataManager::create_counter(SUN_RT, "safepointSyncTime", | |
| 55 PerfData::U_Ticks, CHECK); | |
| 56 | |
| 57 _total_safepoints = | |
| 58 PerfDataManager::create_counter(SUN_RT, "safepoints", | |
| 59 PerfData::U_Events, CHECK); | |
| 60 | |
| 61 _safepoint_time_ticks = | |
| 62 PerfDataManager::create_counter(SUN_RT, "safepointTime", | |
| 63 PerfData::U_Ticks, CHECK); | |
| 64 | |
| 65 _application_time_ticks = | |
| 66 PerfDataManager::create_counter(SUN_RT, "applicationTime", | |
| 67 PerfData::U_Ticks, CHECK); | |
| 68 | |
| 69 | |
| 70 // create performance counters for jvm_version and its capabilities | |
| 71 PerfDataManager::create_constant(SUN_RT, "jvmVersion", PerfData::U_None, | |
| 72 (jlong) Abstract_VM_Version::jvm_version(), CHECK); | |
| 73 | |
| 74 // I/O interruption related counters | |
| 75 | |
| 76 // thread signaling via os::interrupt() | |
| 77 | |
| 78 _thread_interrupt_signaled_count = | |
| 79 PerfDataManager::create_counter(SUN_RT, | |
| 80 "threadInterruptSignaled", PerfData::U_Events, CHECK); | |
| 81 | |
| 82 // OS_INTRPT via "check before" in _INTERRUPTIBLE | |
| 83 | |
| 84 _interrupted_before_count = | |
| 85 PerfDataManager::create_counter(SUN_RT, "interruptedBeforeIO", | |
| 86 PerfData::U_Events, CHECK); | |
| 87 | |
| 88 // OS_INTRPT via "check during" in _INTERRUPTIBLE | |
| 89 | |
| 90 _interrupted_during_count = | |
| 91 PerfDataManager::create_counter(SUN_RT, "interruptedDuringIO", | |
| 92 PerfData::U_Events, CHECK); | |
| 93 | |
| 94 // The capabilities counter is a binary representation of the VM capabilities in string. | |
| 95 // This string respresentation simplifies the implementation of the client side | |
| 96 // to parse the value. | |
| 97 char capabilities[65]; | |
| 98 size_t len = sizeof(capabilities); | |
| 99 memset((void*) capabilities, '0', len); | |
| 100 capabilities[len-1] = '\0'; | |
| 101 capabilities[0] = AttachListener::is_attach_supported() ? '1' : '0'; | |
| 102 #ifdef KERNEL | |
| 103 capabilities[1] = '1'; | |
| 104 #endif // KERNEL | |
| 105 PerfDataManager::create_string_constant(SUN_RT, "jvmCapabilities", | |
| 106 capabilities, CHECK); | |
| 107 } | |
| 108 } | |
| 109 | |
| 110 void RuntimeService::record_safepoint_begin() { | |
| 111 HS_DTRACE_PROBE(hs_private, safepoint__begin); | |
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112 |
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113 // Print the time interval in which the app was executing |
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114 if (PrintGCApplicationConcurrentTime) { |
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115 gclog_or_tty->print_cr("Application time: %3.7f seconds", |
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116 last_application_time_sec()); |
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117 } |
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118 |
| 0 | 119 // update the time stamp to begin recording safepoint time |
| 120 _safepoint_timer.update(); | |
| 121 if (UsePerfData) { | |
| 122 _total_safepoints->inc(); | |
| 123 if (_app_timer.is_updated()) { | |
| 124 _application_time_ticks->inc(_app_timer.ticks_since_update()); | |
| 125 } | |
| 126 } | |
| 127 } | |
| 128 | |
| 129 void RuntimeService::record_safepoint_synchronized() { | |
| 130 if (UsePerfData) { | |
| 131 _sync_time_ticks->inc(_safepoint_timer.ticks_since_update()); | |
| 132 } | |
| 133 } | |
| 134 | |
| 135 void RuntimeService::record_safepoint_end() { | |
| 136 HS_DTRACE_PROBE(hs_private, safepoint__end); | |
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137 |
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138 // Print the time interval for which the app was stopped |
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139 // during the current safepoint operation. |
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140 if (PrintGCApplicationStoppedTime) { |
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141 gclog_or_tty->print_cr("Total time for which application threads " |
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142 "were stopped: %3.7f seconds", |
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143 last_safepoint_time_sec()); |
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144 } |
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145 |
| 0 | 146 // update the time stamp to begin recording app time |
| 147 _app_timer.update(); | |
| 148 if (UsePerfData) { | |
| 149 _safepoint_time_ticks->inc(_safepoint_timer.ticks_since_update()); | |
| 150 } | |
| 151 } | |
| 152 | |
| 153 void RuntimeService::record_application_start() { | |
| 154 // update the time stamp to begin recording app time | |
| 155 _app_timer.update(); | |
| 156 } | |
| 157 | |
| 158 // Don't need to record application end because we currently | |
| 159 // exit at a safepoint and record_safepoint_begin() handles updating | |
| 160 // the application time counter at VM exit. | |
| 161 | |
| 162 jlong RuntimeService::safepoint_sync_time_ms() { | |
| 163 return UsePerfData ? | |
| 164 Management::ticks_to_ms(_sync_time_ticks->get_value()) : -1; | |
| 165 } | |
| 166 | |
| 167 jlong RuntimeService::safepoint_count() { | |
| 168 return UsePerfData ? | |
| 169 _total_safepoints->get_value() : -1; | |
| 170 } | |
| 171 jlong RuntimeService::safepoint_time_ms() { | |
| 172 return UsePerfData ? | |
| 173 Management::ticks_to_ms(_safepoint_time_ticks->get_value()) : -1; | |
| 174 } | |
| 175 | |
| 176 jlong RuntimeService::application_time_ms() { | |
| 177 return UsePerfData ? | |
| 178 Management::ticks_to_ms(_application_time_ticks->get_value()) : -1; | |
| 179 } | |
| 180 | |
| 181 void RuntimeService::record_interrupted_before_count() { | |
| 182 if (UsePerfData) { | |
| 183 _interrupted_before_count->inc(); | |
| 184 } | |
| 185 } | |
| 186 | |
| 187 void RuntimeService::record_interrupted_during_count() { | |
| 188 if (UsePerfData) { | |
| 189 _interrupted_during_count->inc(); | |
| 190 } | |
| 191 } | |
| 192 | |
| 193 void RuntimeService::record_thread_interrupt_signaled_count() { | |
| 194 if (UsePerfData) { | |
| 195 _thread_interrupt_signaled_count->inc(); | |
| 196 } | |
| 197 } |