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comparison: src/share/vm/runtime/timer.cpp
src/share/vm/runtime/timer.cpp
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- f90c822e73f8
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| 1 /* | |
| 2 * Copyright (c) 1997, 2014, 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 | |
| 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 | |
| 38 #ifdef TARGET_OS_FAMILY_aix | |
| 39 # include "os_aix.inline.hpp" | |
| 40 #endif | |
| 41 #ifdef TARGET_OS_FAMILY_bsd | |
| 42 # include "os_bsd.inline.hpp" | |
| 43 #endif | |
| 44 | |
| 45 double TimeHelper::counter_to_seconds(jlong counter) { | |
| 46 double count = (double) counter; | |
| 47 double freq = (double) os::elapsed_frequency(); | |
| 48 return counter/freq; | |
| 49 } | |
| 50 | |
| 51 void elapsedTimer::add(elapsedTimer t) { | |
| 52 _counter += t._counter; | |
| 53 } | |
| 54 | |
| 55 void elapsedTimer::start() { | |
| 56 if (!_active) { | |
| 57 _active = true; | |
| 58 _start_counter = os::elapsed_counter(); | |
| 59 } | |
| 60 } | |
| 61 | |
| 62 void elapsedTimer::stop() { | |
| 63 if (_active) { | |
| 64 _counter += os::elapsed_counter() - _start_counter; | |
| 65 _active = false; | |
| 66 } | |
| 67 } | |
| 68 | |
| 69 double elapsedTimer::seconds() const { | |
| 70 return TimeHelper::counter_to_seconds(_counter); | |
| 71 } | |
| 72 | |
| 73 jlong elapsedTimer::milliseconds() const { | |
| 74 jlong ticks_per_ms = os::elapsed_frequency() / 1000; | |
| 75 return _counter / ticks_per_ms; | |
| 76 } | |
| 77 | |
| 78 jlong elapsedTimer::active_ticks() const { | |
| 79 if (!_active) { | |
| 80 return ticks(); | |
| 81 } | |
| 82 jlong counter = _counter + os::elapsed_counter() - _start_counter; | |
| 83 return counter; | |
| 84 } | |
| 85 | |
| 86 void TimeStamp::update_to(jlong ticks) { | |
| 87 _counter = ticks; | |
| 88 if (_counter == 0) _counter = 1; | |
| 89 assert(is_updated(), "must not look clear"); | |
| 90 } | |
| 91 | |
| 92 void TimeStamp::update() { | |
| 93 update_to(os::elapsed_counter()); | |
| 94 } | |
| 95 | |
| 96 double TimeStamp::seconds() const { | |
| 97 assert(is_updated(), "must not be clear"); | |
| 98 jlong new_count = os::elapsed_counter(); | |
| 99 return TimeHelper::counter_to_seconds(new_count - _counter); | |
| 100 } | |
| 101 | |
| 102 jlong TimeStamp::milliseconds() const { | |
| 103 assert(is_updated(), "must not be clear"); | |
| 104 | |
| 105 jlong new_count = os::elapsed_counter(); | |
| 106 jlong count = new_count - _counter; | |
| 107 jlong ticks_per_ms = os::elapsed_frequency() / 1000; | |
| 108 return count / ticks_per_ms; | |
| 109 } | |
| 110 | |
| 111 jlong TimeStamp::ticks_since_update() const { | |
| 112 assert(is_updated(), "must not be clear"); | |
| 113 return os::elapsed_counter() - _counter; | |
| 114 } | |
| 115 | |
| 116 TraceTime::TraceTime(const char* title, | |
| 117 bool doit) { | |
| 118 _active = doit; | |
| 119 _verbose = true; | |
| 120 | |
| 121 if (_active) { | |
| 122 _accum = NULL; | |
| 123 tty->stamp(PrintGCTimeStamps); | |
| 124 tty->print("[%s", title); | |
| 125 tty->flush(); | |
| 126 _t.start(); | |
| 127 } | |
| 128 } | |
| 129 | |
| 130 TraceTime::TraceTime(const char* title, | |
| 131 elapsedTimer* accumulator, | |
| 132 bool doit, | |
| 133 bool verbose) { | |
| 134 _active = doit; | |
| 135 _verbose = verbose; | |
| 136 if (_active) { | |
| 137 if (_verbose) { | |
| 138 tty->stamp(PrintGCTimeStamps); | |
| 139 tty->print("[%s", title); | |
| 140 tty->flush(); | |
| 141 } | |
| 142 _accum = accumulator; | |
| 143 _t.start(); | |
| 144 } | |
| 145 } | |
| 146 | |
| 147 TraceTime::~TraceTime() { | |
| 148 if (_active) { | |
| 149 _t.stop(); | |
| 150 if (_accum!=NULL) _accum->add(_t); | |
| 151 if (_verbose) { | |
| 152 tty->print_cr(", %3.7f secs]", _t.seconds()); | |
| 153 tty->flush(); | |
| 154 } | |
| 155 } | |
| 156 } | |
| 157 | |
| 158 TraceCPUTime::TraceCPUTime(bool doit, | |
| 159 bool print_cr, | |
| 160 outputStream *logfile) : | |
| 161 _active(doit), | |
| 162 _print_cr(print_cr), | |
| 163 _starting_user_time(0.0), | |
| 164 _starting_system_time(0.0), | |
| 165 _starting_real_time(0.0), | |
| 166 _logfile(logfile), | |
| 167 _error(false) { | |
| 168 if (_active) { | |
| 169 if (logfile != NULL) { | |
| 170 _logfile = logfile; | |
| 171 } else { | |
| 172 _logfile = tty; | |
| 173 } | |
| 174 | |
| 175 _error = !os::getTimesSecs(&_starting_real_time, | |
| 176 &_starting_user_time, | |
| 177 &_starting_system_time); | |
| 178 } | |
| 179 } | |
| 180 | |
| 181 TraceCPUTime::~TraceCPUTime() { | |
| 182 if (_active) { | |
| 183 bool valid = false; | |
| 184 if (!_error) { | |
| 185 double real_secs; // walk clock time | |
| 186 double system_secs; // system time | |
| 187 double user_secs; // user time for all threads | |
| 188 | |
| 189 double real_time, user_time, system_time; | |
| 190 valid = os::getTimesSecs(&real_time, &user_time, &system_time); | |
| 191 if (valid) { | |
| 192 | |
| 193 user_secs = user_time - _starting_user_time; | |
| 194 system_secs = system_time - _starting_system_time; | |
| 195 real_secs = real_time - _starting_real_time; | |
| 196 | |
| 197 _logfile->print(" [Times: user=%3.2f sys=%3.2f, real=%3.2f secs] ", | |
| 198 user_secs, system_secs, real_secs); | |
| 199 | |
| 200 } else { | |
| 201 _logfile->print("[Invalid result in TraceCPUTime]"); | |
| 202 } | |
| 203 } else { | |
| 204 _logfile->print("[Error in TraceCPUTime]"); | |
| 205 } | |
| 206 if (_print_cr) { | |
| 207 _logfile->cr(); | |
| 208 } | |
| 209 _logfile->flush(); | |
| 210 } | |
| 211 } |
