Mercurial > hg > truffle
annotate src/share/vm/runtime/timer.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 | f08d439fab8c |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 1997, 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 "oops/oop.inline.hpp" | |
| 27 #include "runtime/timer.hpp" | |
| 28 #include "utilities/ostream.hpp" | |
| 29 #ifdef TARGET_OS_FAMILY_linux | |
| 30 # include "os_linux.inline.hpp" | |
| 31 #endif | |
| 32 #ifdef TARGET_OS_FAMILY_solaris | |
| 33 # include "os_solaris.inline.hpp" | |
| 34 #endif | |
| 35 #ifdef TARGET_OS_FAMILY_windows | |
| 36 # include "os_windows.inline.hpp" | |
| 37 #endif | |
| 0 | 38 |
| 39 | |
| 40 void elapsedTimer::add(elapsedTimer t) { | |
| 41 _counter += t._counter; | |
| 42 } | |
| 43 | |
| 44 void elapsedTimer::start() { | |
| 45 if (!_active) { | |
| 46 _active = true; | |
| 47 _start_counter = os::elapsed_counter(); | |
| 48 } | |
| 49 } | |
| 50 | |
| 51 void elapsedTimer::stop() { | |
| 52 if (_active) { | |
| 53 _counter += os::elapsed_counter() - _start_counter; | |
| 54 _active = false; | |
| 55 } | |
| 56 } | |
| 57 | |
| 58 double elapsedTimer::seconds() const { | |
| 59 double count = (double) _counter; | |
| 60 double freq = (double) os::elapsed_frequency(); | |
| 61 return count/freq; | |
| 62 } | |
| 63 | |
| 64 jlong elapsedTimer::milliseconds() const { | |
| 65 jlong ticks_per_ms = os::elapsed_frequency() / 1000; | |
| 66 return _counter / ticks_per_ms; | |
| 67 } | |
| 68 | |
| 69 jlong elapsedTimer::active_ticks() const { | |
| 70 if (!_active) { | |
| 71 return ticks(); | |
| 72 } | |
| 73 jlong counter = _counter + os::elapsed_counter() - _start_counter; | |
| 74 return counter; | |
| 75 } | |
| 76 | |
| 77 void TimeStamp::update_to(jlong ticks) { | |
| 78 _counter = ticks; | |
| 79 if (_counter == 0) _counter = 1; | |
| 80 assert(is_updated(), "must not look clear"); | |
| 81 } | |
| 82 | |
| 83 void TimeStamp::update() { | |
| 84 update_to(os::elapsed_counter()); | |
| 85 } | |
| 86 | |
| 87 double TimeStamp::seconds() const { | |
| 88 assert(is_updated(), "must not be clear"); | |
| 89 jlong new_count = os::elapsed_counter(); | |
| 90 double count = (double) new_count - _counter; | |
| 91 double freq = (double) os::elapsed_frequency(); | |
| 92 return count/freq; | |
| 93 } | |
| 94 | |
| 95 jlong TimeStamp::milliseconds() const { | |
| 96 assert(is_updated(), "must not be clear"); | |
| 97 | |
| 98 jlong new_count = os::elapsed_counter(); | |
| 99 jlong count = new_count - _counter; | |
| 100 jlong ticks_per_ms = os::elapsed_frequency() / 1000; | |
| 101 return count / ticks_per_ms; | |
| 102 } | |
| 103 | |
| 104 jlong TimeStamp::ticks_since_update() const { | |
| 105 assert(is_updated(), "must not be clear"); | |
| 106 return os::elapsed_counter() - _counter; | |
| 107 } | |
| 108 | |
| 109 TraceTime::TraceTime(const char* title, | |
| 110 bool doit, | |
| 111 bool print_cr, | |
| 112 outputStream* logfile) { | |
| 113 _active = doit; | |
| 114 _verbose = true; | |
| 115 _print_cr = print_cr; | |
| 116 _logfile = (logfile != NULL) ? logfile : tty; | |
| 117 | |
| 118 if (_active) { | |
| 119 _accum = NULL; | |
| 120 if (PrintGCTimeStamps) { | |
| 121 _logfile->stamp(); | |
| 122 _logfile->print(": "); | |
| 123 } | |
| 124 _logfile->print("[%s", title); | |
| 125 _logfile->flush(); | |
| 126 _t.start(); | |
| 127 } | |
| 128 } | |
| 129 | |
| 130 TraceTime::TraceTime(const char* title, | |
| 131 elapsedTimer* accumulator, | |
| 132 bool doit, | |
| 133 bool verbose, | |
| 134 outputStream* logfile) { | |
| 135 _active = doit; | |
| 136 _verbose = verbose; | |
| 137 _print_cr = true; | |
| 138 _logfile = (logfile != NULL) ? logfile : tty; | |
| 139 if (_active) { | |
| 140 if (_verbose) { | |
| 141 if (PrintGCTimeStamps) { | |
| 142 _logfile->stamp(); | |
| 143 _logfile->print(": "); | |
| 144 } | |
| 145 _logfile->print("[%s", title); | |
| 146 _logfile->flush(); | |
| 147 } | |
| 148 _accum = accumulator; | |
| 149 _t.start(); | |
| 150 } | |
| 151 } | |
| 152 | |
| 153 TraceTime::~TraceTime() { | |
| 154 if (_active) { | |
| 155 _t.stop(); | |
| 156 if (_accum!=NULL) _accum->add(_t); | |
| 157 if (_verbose) { | |
| 158 if (_print_cr) { | |
| 159 _logfile->print_cr(", %3.7f secs]", _t.seconds()); | |
| 160 } else { | |
| 161 _logfile->print(", %3.7f secs]", _t.seconds()); | |
| 162 } | |
| 163 _logfile->flush(); | |
| 164 } | |
| 165 } | |
| 166 } | |
| 167 | |
| 168 TraceCPUTime::TraceCPUTime(bool doit, | |
| 169 bool print_cr, | |
| 170 outputStream *logfile) : | |
| 171 _active(doit), | |
| 172 _print_cr(print_cr), | |
| 173 _starting_user_time(0.0), | |
| 174 _starting_system_time(0.0), | |
| 175 _starting_real_time(0.0), | |
| 176 _logfile(logfile), | |
| 177 _error(false) { | |
| 178 if (_active) { | |
| 179 if (logfile != NULL) { | |
| 180 _logfile = logfile; | |
| 181 } else { | |
| 182 _logfile = tty; | |
| 183 } | |
| 184 | |
| 185 _error = !os::getTimesSecs(&_starting_real_time, | |
| 186 &_starting_user_time, | |
| 187 &_starting_system_time); | |
| 188 } | |
| 189 } | |
| 190 | |
| 191 TraceCPUTime::~TraceCPUTime() { | |
| 192 if (_active) { | |
| 193 bool valid = false; | |
| 194 if (!_error) { | |
| 195 double real_secs; // walk clock time | |
| 196 double system_secs; // system time | |
| 197 double user_secs; // user time for all threads | |
| 198 | |
| 199 double real_time, user_time, system_time; | |
| 200 valid = os::getTimesSecs(&real_time, &user_time, &system_time); | |
| 201 if (valid) { | |
| 202 | |
| 203 user_secs = user_time - _starting_user_time; | |
| 204 system_secs = system_time - _starting_system_time; | |
| 205 real_secs = real_time - _starting_real_time; | |
| 206 | |
| 207 _logfile->print(" [Times: user=%3.2f sys=%3.2f, real=%3.2f secs] ", | |
| 208 user_secs, system_secs, real_secs); | |
| 209 | |
| 210 } else { | |
| 211 _logfile->print("[Invalid result in TraceCPUTime]"); | |
| 212 } | |
| 213 } else { | |
| 214 _logfile->print("[Error in TraceCPUTime]"); | |
| 215 } | |
| 216 if (_print_cr) { | |
| 217 _logfile->print_cr(""); | |
| 218 } | |
| 219 } | |
| 220 } |