Mercurial > hg > graal-compiler
annotate src/share/vm/services/runtimeService.cpp @ 10185:d50cc62e94ff
8012715: G1: GraphKit accesses PtrQueue::_index as int but is size_t
Summary: In graphKit INT operations were generated to access PtrQueue::_index which has type size_t. This is 64 bit on 64-bit machines. No problems occur on little endian machines as long as the index fits into 32 bit, but on big endian machines the upper part is read, which is zero. This leads to unnecessary branches to the slow path in the runtime.
Reviewed-by: twisti, johnc
Contributed-by: Martin Doerr <martin.doerr@sap.com>
| author | johnc |
|---|---|
| date | Wed, 24 Apr 2013 14:48:43 -0700 |
| parents | 07a4efc5ed14 |
| children | 0db3ba3f6870 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2003, 2012, 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" | |
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32 #include "utilities/macros.hpp" |
| 0 | 33 |
| 4006 | 34 #ifndef USDT2 |
| 0 | 35 HS_DTRACE_PROBE_DECL(hs_private, safepoint__begin); |
| 36 HS_DTRACE_PROBE_DECL(hs_private, safepoint__end); | |
| 4006 | 37 #endif /* !USDT2 */ |
| 0 | 38 |
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39 #if INCLUDE_MANAGEMENT |
| 0 | 40 TimeStamp RuntimeService::_app_timer; |
| 41 TimeStamp RuntimeService::_safepoint_timer; | |
| 42 PerfCounter* RuntimeService::_sync_time_ticks = NULL; | |
| 43 PerfCounter* RuntimeService::_total_safepoints = NULL; | |
| 44 PerfCounter* RuntimeService::_safepoint_time_ticks = NULL; | |
| 45 PerfCounter* RuntimeService::_application_time_ticks = NULL; | |
| 46 PerfCounter* RuntimeService::_thread_interrupt_signaled_count = NULL; | |
| 47 PerfCounter* RuntimeService::_interrupted_before_count = NULL; | |
| 48 PerfCounter* RuntimeService::_interrupted_during_count = NULL; | |
| 49 | |
| 50 void RuntimeService::init() { | |
| 51 // Make sure the VM version is initialized | |
| 52 Abstract_VM_Version::initialize(); | |
| 53 | |
| 54 if (UsePerfData) { | |
| 55 EXCEPTION_MARK; | |
| 56 | |
| 57 _sync_time_ticks = | |
| 58 PerfDataManager::create_counter(SUN_RT, "safepointSyncTime", | |
| 59 PerfData::U_Ticks, CHECK); | |
| 60 | |
| 61 _total_safepoints = | |
| 62 PerfDataManager::create_counter(SUN_RT, "safepoints", | |
| 63 PerfData::U_Events, CHECK); | |
| 64 | |
| 65 _safepoint_time_ticks = | |
| 66 PerfDataManager::create_counter(SUN_RT, "safepointTime", | |
| 67 PerfData::U_Ticks, CHECK); | |
| 68 | |
| 69 _application_time_ticks = | |
| 70 PerfDataManager::create_counter(SUN_RT, "applicationTime", | |
| 71 PerfData::U_Ticks, CHECK); | |
| 72 | |
| 73 | |
| 74 // create performance counters for jvm_version and its capabilities | |
| 75 PerfDataManager::create_constant(SUN_RT, "jvmVersion", PerfData::U_None, | |
| 76 (jlong) Abstract_VM_Version::jvm_version(), CHECK); | |
| 77 | |
| 78 // I/O interruption related counters | |
| 79 | |
| 80 // thread signaling via os::interrupt() | |
| 81 | |
| 82 _thread_interrupt_signaled_count = | |
| 83 PerfDataManager::create_counter(SUN_RT, | |
| 84 "threadInterruptSignaled", PerfData::U_Events, CHECK); | |
| 85 | |
| 86 // OS_INTRPT via "check before" in _INTERRUPTIBLE | |
| 87 | |
| 88 _interrupted_before_count = | |
| 89 PerfDataManager::create_counter(SUN_RT, "interruptedBeforeIO", | |
| 90 PerfData::U_Events, CHECK); | |
| 91 | |
| 92 // OS_INTRPT via "check during" in _INTERRUPTIBLE | |
| 93 | |
| 94 _interrupted_during_count = | |
| 95 PerfDataManager::create_counter(SUN_RT, "interruptedDuringIO", | |
| 96 PerfData::U_Events, CHECK); | |
| 97 | |
| 98 // The capabilities counter is a binary representation of the VM capabilities in string. | |
| 99 // This string respresentation simplifies the implementation of the client side | |
| 100 // to parse the value. | |
| 101 char capabilities[65]; | |
| 102 size_t len = sizeof(capabilities); | |
| 103 memset((void*) capabilities, '0', len); | |
| 104 capabilities[len-1] = '\0'; | |
| 105 capabilities[0] = AttachListener::is_attach_supported() ? '1' : '0'; | |
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106 #if INCLUDE_SERVICES |
| 0 | 107 capabilities[1] = '1'; |
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108 #endif // INCLUDE_SERVICES |
| 0 | 109 PerfDataManager::create_string_constant(SUN_RT, "jvmCapabilities", |
| 110 capabilities, CHECK); | |
| 111 } | |
| 112 } | |
| 113 | |
| 114 void RuntimeService::record_safepoint_begin() { | |
| 4006 | 115 #ifndef USDT2 |
| 0 | 116 HS_DTRACE_PROBE(hs_private, safepoint__begin); |
| 4006 | 117 #else /* USDT2 */ |
| 118 HS_PRIVATE_SAFEPOINT_BEGIN(); | |
| 119 #endif /* USDT2 */ | |
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120 |
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121 // Print the time interval in which the app was executing |
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122 if (PrintGCApplicationConcurrentTime) { |
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123 gclog_or_tty->date_stamp(PrintGCDateStamps); |
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124 gclog_or_tty->stamp(PrintGCTimeStamps); |
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125 gclog_or_tty->print_cr("Application time: %3.7f seconds", |
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126 last_application_time_sec()); |
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127 } |
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128 |
| 0 | 129 // update the time stamp to begin recording safepoint time |
| 130 _safepoint_timer.update(); | |
| 131 if (UsePerfData) { | |
| 132 _total_safepoints->inc(); | |
| 133 if (_app_timer.is_updated()) { | |
| 134 _application_time_ticks->inc(_app_timer.ticks_since_update()); | |
| 135 } | |
| 136 } | |
| 137 } | |
| 138 | |
| 139 void RuntimeService::record_safepoint_synchronized() { | |
| 140 if (UsePerfData) { | |
| 141 _sync_time_ticks->inc(_safepoint_timer.ticks_since_update()); | |
| 142 } | |
| 143 } | |
| 144 | |
| 145 void RuntimeService::record_safepoint_end() { | |
| 4006 | 146 #ifndef USDT2 |
| 0 | 147 HS_DTRACE_PROBE(hs_private, safepoint__end); |
| 4006 | 148 #else /* USDT2 */ |
| 149 HS_PRIVATE_SAFEPOINT_END(); | |
| 150 #endif /* USDT2 */ | |
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151 |
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152 // Print the time interval for which the app was stopped |
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153 // during the current safepoint operation. |
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154 if (PrintGCApplicationStoppedTime) { |
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155 gclog_or_tty->date_stamp(PrintGCDateStamps); |
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156 gclog_or_tty->stamp(PrintGCTimeStamps); |
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157 gclog_or_tty->print_cr("Total time for which application threads " |
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158 "were stopped: %3.7f seconds", |
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159 last_safepoint_time_sec()); |
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160 } |
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161 |
| 0 | 162 // update the time stamp to begin recording app time |
| 163 _app_timer.update(); | |
| 164 if (UsePerfData) { | |
| 165 _safepoint_time_ticks->inc(_safepoint_timer.ticks_since_update()); | |
| 166 } | |
| 167 } | |
| 168 | |
| 169 void RuntimeService::record_application_start() { | |
| 170 // update the time stamp to begin recording app time | |
| 171 _app_timer.update(); | |
| 172 } | |
| 173 | |
| 174 // Don't need to record application end because we currently | |
| 175 // exit at a safepoint and record_safepoint_begin() handles updating | |
| 176 // the application time counter at VM exit. | |
| 177 | |
| 178 jlong RuntimeService::safepoint_sync_time_ms() { | |
| 179 return UsePerfData ? | |
| 180 Management::ticks_to_ms(_sync_time_ticks->get_value()) : -1; | |
| 181 } | |
| 182 | |
| 183 jlong RuntimeService::safepoint_count() { | |
| 184 return UsePerfData ? | |
| 185 _total_safepoints->get_value() : -1; | |
| 186 } | |
| 187 jlong RuntimeService::safepoint_time_ms() { | |
| 188 return UsePerfData ? | |
| 189 Management::ticks_to_ms(_safepoint_time_ticks->get_value()) : -1; | |
| 190 } | |
| 191 | |
| 192 jlong RuntimeService::application_time_ms() { | |
| 193 return UsePerfData ? | |
| 194 Management::ticks_to_ms(_application_time_ticks->get_value()) : -1; | |
| 195 } | |
| 196 | |
| 197 void RuntimeService::record_interrupted_before_count() { | |
| 198 if (UsePerfData) { | |
| 199 _interrupted_before_count->inc(); | |
| 200 } | |
| 201 } | |
| 202 | |
| 203 void RuntimeService::record_interrupted_during_count() { | |
| 204 if (UsePerfData) { | |
| 205 _interrupted_during_count->inc(); | |
| 206 } | |
| 207 } | |
| 208 | |
| 209 void RuntimeService::record_thread_interrupt_signaled_count() { | |
| 210 if (UsePerfData) { | |
| 211 _thread_interrupt_signaled_count->inc(); | |
| 212 } | |
| 213 } | |
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214 |
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215 #endif // INCLUDE_MANAGEMENT |