annotate src/share/vm/services/runtimeService.cpp @ 4006:436b4a3231bf

7098194: integrate macosx-port changes Summary: Integrate bsd-port/hotspot and macosx-port/hotspot changes as of 2011.09.29. Reviewed-by: kvn, dholmes, never, phh Contributed-by: Christos Zoulas <christos@zoulas.com>, Greg Lewis <glewis@eyesbeyond.com>, Kurt Miller <kurt@intricatesoftware.com>, Alexander Strange <astrange@apple.com>, Mike Swingler <swingler@apple.com>, Roger Hoover <rhoover@apple.com>, Victor Hernandez <vhernandez@apple.com>, Pratik Solanki <psolanki@apple.com>
author dcubed
date Thu, 13 Oct 2011 09:35:42 -0700
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children fb19af007ffc
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1 /*
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2 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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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.
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22 *
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23 */
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24
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25 #include "precompiled.hpp"
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26 #include "classfile/classLoader.hpp"
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27 #include "services/attachListener.hpp"
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28 #include "services/management.hpp"
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29 #include "services/runtimeService.hpp"
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30 #include "utilities/dtrace.hpp"
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31 #include "utilities/exceptions.hpp"
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32
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33 #ifndef USDT2
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34 HS_DTRACE_PROBE_DECL(hs_private, safepoint__begin);
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35 HS_DTRACE_PROBE_DECL(hs_private, safepoint__end);
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36 #endif /* !USDT2 */
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37
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38 TimeStamp RuntimeService::_app_timer;
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39 TimeStamp RuntimeService::_safepoint_timer;
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40 PerfCounter* RuntimeService::_sync_time_ticks = NULL;
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41 PerfCounter* RuntimeService::_total_safepoints = NULL;
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42 PerfCounter* RuntimeService::_safepoint_time_ticks = NULL;
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43 PerfCounter* RuntimeService::_application_time_ticks = NULL;
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44 PerfCounter* RuntimeService::_thread_interrupt_signaled_count = NULL;
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45 PerfCounter* RuntimeService::_interrupted_before_count = NULL;
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46 PerfCounter* RuntimeService::_interrupted_during_count = NULL;
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47
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48 void RuntimeService::init() {
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49 // Make sure the VM version is initialized
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50 Abstract_VM_Version::initialize();
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51
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52 if (UsePerfData) {
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53 EXCEPTION_MARK;
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54
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55 _sync_time_ticks =
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56 PerfDataManager::create_counter(SUN_RT, "safepointSyncTime",
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57 PerfData::U_Ticks, CHECK);
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58
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59 _total_safepoints =
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60 PerfDataManager::create_counter(SUN_RT, "safepoints",
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61 PerfData::U_Events, CHECK);
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62
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63 _safepoint_time_ticks =
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64 PerfDataManager::create_counter(SUN_RT, "safepointTime",
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65 PerfData::U_Ticks, CHECK);
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66
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67 _application_time_ticks =
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68 PerfDataManager::create_counter(SUN_RT, "applicationTime",
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69 PerfData::U_Ticks, CHECK);
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70
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71
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72 // create performance counters for jvm_version and its capabilities
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73 PerfDataManager::create_constant(SUN_RT, "jvmVersion", PerfData::U_None,
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74 (jlong) Abstract_VM_Version::jvm_version(), CHECK);
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75
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76 // I/O interruption related counters
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77
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78 // thread signaling via os::interrupt()
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79
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80 _thread_interrupt_signaled_count =
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81 PerfDataManager::create_counter(SUN_RT,
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82 "threadInterruptSignaled", PerfData::U_Events, CHECK);
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83
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84 // OS_INTRPT via "check before" in _INTERRUPTIBLE
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85
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86 _interrupted_before_count =
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87 PerfDataManager::create_counter(SUN_RT, "interruptedBeforeIO",
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88 PerfData::U_Events, CHECK);
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89
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90 // OS_INTRPT via "check during" in _INTERRUPTIBLE
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91
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92 _interrupted_during_count =
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93 PerfDataManager::create_counter(SUN_RT, "interruptedDuringIO",
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94 PerfData::U_Events, CHECK);
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95
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96 // The capabilities counter is a binary representation of the VM capabilities in string.
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97 // This string respresentation simplifies the implementation of the client side
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98 // to parse the value.
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99 char capabilities[65];
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100 size_t len = sizeof(capabilities);
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101 memset((void*) capabilities, '0', len);
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102 capabilities[len-1] = '\0';
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103 capabilities[0] = AttachListener::is_attach_supported() ? '1' : '0';
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104 #ifdef KERNEL
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105 capabilities[1] = '1';
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106 #endif // KERNEL
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107 PerfDataManager::create_string_constant(SUN_RT, "jvmCapabilities",
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108 capabilities, CHECK);
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109 }
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110 }
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111
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112 void RuntimeService::record_safepoint_begin() {
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113 #ifndef USDT2
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114 HS_DTRACE_PROBE(hs_private, safepoint__begin);
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115 #else /* USDT2 */
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116 HS_PRIVATE_SAFEPOINT_BEGIN();
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117 #endif /* USDT2 */
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118
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119 // Print the time interval in which the app was executing
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120 if (PrintGCApplicationConcurrentTime) {
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121 gclog_or_tty->print_cr("Application time: %3.7f seconds",
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122 last_application_time_sec());
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123 }
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124
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125 // update the time stamp to begin recording safepoint time
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126 _safepoint_timer.update();
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127 if (UsePerfData) {
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128 _total_safepoints->inc();
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129 if (_app_timer.is_updated()) {
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130 _application_time_ticks->inc(_app_timer.ticks_since_update());
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131 }
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132 }
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133 }
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134
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135 void RuntimeService::record_safepoint_synchronized() {
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136 if (UsePerfData) {
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137 _sync_time_ticks->inc(_safepoint_timer.ticks_since_update());
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138 }
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139 }
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140
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141 void RuntimeService::record_safepoint_end() {
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142 #ifndef USDT2
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143 HS_DTRACE_PROBE(hs_private, safepoint__end);
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144 #else /* USDT2 */
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145 HS_PRIVATE_SAFEPOINT_END();
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146 #endif /* USDT2 */
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147
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148 // Print the time interval for which the app was stopped
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149 // during the current safepoint operation.
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150 if (PrintGCApplicationStoppedTime) {
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151 gclog_or_tty->print_cr("Total time for which application threads "
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152 "were stopped: %3.7f seconds",
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153 last_safepoint_time_sec());
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154 }
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155
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156 // update the time stamp to begin recording app time
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157 _app_timer.update();
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158 if (UsePerfData) {
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159 _safepoint_time_ticks->inc(_safepoint_timer.ticks_since_update());
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160 }
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161 }
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162
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163 void RuntimeService::record_application_start() {
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164 // update the time stamp to begin recording app time
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165 _app_timer.update();
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166 }
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167
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168 // Don't need to record application end because we currently
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169 // exit at a safepoint and record_safepoint_begin() handles updating
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170 // the application time counter at VM exit.
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171
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172 jlong RuntimeService::safepoint_sync_time_ms() {
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173 return UsePerfData ?
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174 Management::ticks_to_ms(_sync_time_ticks->get_value()) : -1;
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175 }
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176
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177 jlong RuntimeService::safepoint_count() {
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178 return UsePerfData ?
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179 _total_safepoints->get_value() : -1;
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180 }
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181 jlong RuntimeService::safepoint_time_ms() {
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182 return UsePerfData ?
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183 Management::ticks_to_ms(_safepoint_time_ticks->get_value()) : -1;
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184 }
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185
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186 jlong RuntimeService::application_time_ms() {
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187 return UsePerfData ?
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188 Management::ticks_to_ms(_application_time_ticks->get_value()) : -1;
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189 }
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190
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191 void RuntimeService::record_interrupted_before_count() {
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192 if (UsePerfData) {
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193 _interrupted_before_count->inc();
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194 }
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195 }
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196
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197 void RuntimeService::record_interrupted_during_count() {
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198 if (UsePerfData) {
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199 _interrupted_during_count->inc();
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200 }
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201 }
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202
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203 void RuntimeService::record_thread_interrupt_signaled_count() {
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204 if (UsePerfData) {
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205 _thread_interrupt_signaled_count->inc();
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206 }
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207 }