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1 /* |
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2 * Copyright 1997-2006 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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20 * CA 95054 USA or visit www.sun.com if you need additional information or |
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21 * have any questions. |
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22 * |
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23 */ |
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24 |
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25 # include "incls/_precompiled.incl" |
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26 # include "incls/_timer.cpp.incl" |
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27 |
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28 |
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29 void elapsedTimer::add(elapsedTimer t) { |
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30 _counter += t._counter; |
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31 } |
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32 |
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33 void elapsedTimer::start() { |
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34 if (!_active) { |
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35 _active = true; |
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36 _start_counter = os::elapsed_counter(); |
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37 } |
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38 } |
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39 |
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40 void elapsedTimer::stop() { |
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41 if (_active) { |
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42 _counter += os::elapsed_counter() - _start_counter; |
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43 _active = false; |
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44 } |
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45 } |
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46 |
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47 double elapsedTimer::seconds() const { |
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48 double count = (double) _counter; |
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49 double freq = (double) os::elapsed_frequency(); |
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50 return count/freq; |
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51 } |
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52 |
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53 jlong elapsedTimer::milliseconds() const { |
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54 jlong ticks_per_ms = os::elapsed_frequency() / 1000; |
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55 return _counter / ticks_per_ms; |
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56 } |
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57 |
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58 jlong elapsedTimer::active_ticks() const { |
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59 if (!_active) { |
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60 return ticks(); |
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61 } |
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62 jlong counter = _counter + os::elapsed_counter() - _start_counter; |
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63 return counter; |
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64 } |
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65 |
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66 void TimeStamp::update_to(jlong ticks) { |
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67 _counter = ticks; |
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68 if (_counter == 0) _counter = 1; |
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69 assert(is_updated(), "must not look clear"); |
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70 } |
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71 |
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72 void TimeStamp::update() { |
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73 update_to(os::elapsed_counter()); |
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74 } |
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75 |
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76 double TimeStamp::seconds() const { |
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77 assert(is_updated(), "must not be clear"); |
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78 jlong new_count = os::elapsed_counter(); |
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79 double count = (double) new_count - _counter; |
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80 double freq = (double) os::elapsed_frequency(); |
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81 return count/freq; |
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82 } |
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83 |
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84 jlong TimeStamp::milliseconds() const { |
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85 assert(is_updated(), "must not be clear"); |
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86 |
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87 jlong new_count = os::elapsed_counter(); |
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88 jlong count = new_count - _counter; |
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89 jlong ticks_per_ms = os::elapsed_frequency() / 1000; |
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90 return count / ticks_per_ms; |
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91 } |
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92 |
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93 jlong TimeStamp::ticks_since_update() const { |
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94 assert(is_updated(), "must not be clear"); |
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95 return os::elapsed_counter() - _counter; |
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96 } |
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97 |
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98 TraceTime::TraceTime(const char* title, |
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99 bool doit, |
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100 bool print_cr, |
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101 outputStream* logfile) { |
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102 _active = doit; |
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103 _verbose = true; |
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104 _print_cr = print_cr; |
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105 _logfile = (logfile != NULL) ? logfile : tty; |
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106 |
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107 if (_active) { |
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108 _accum = NULL; |
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109 if (PrintGCTimeStamps) { |
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110 _logfile->stamp(); |
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111 _logfile->print(": "); |
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112 } |
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113 _logfile->print("[%s", title); |
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114 _logfile->flush(); |
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115 _t.start(); |
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116 } |
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117 } |
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118 |
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119 TraceTime::TraceTime(const char* title, |
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120 elapsedTimer* accumulator, |
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121 bool doit, |
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122 bool verbose, |
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123 outputStream* logfile) { |
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124 _active = doit; |
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125 _verbose = verbose; |
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126 _print_cr = true; |
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127 _logfile = (logfile != NULL) ? logfile : tty; |
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128 if (_active) { |
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129 if (_verbose) { |
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130 if (PrintGCTimeStamps) { |
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131 _logfile->stamp(); |
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132 _logfile->print(": "); |
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133 } |
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134 _logfile->print("[%s", title); |
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135 _logfile->flush(); |
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136 } |
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137 _accum = accumulator; |
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138 _t.start(); |
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139 } |
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140 } |
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141 |
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142 TraceTime::~TraceTime() { |
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143 if (_active) { |
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144 _t.stop(); |
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145 if (_accum!=NULL) _accum->add(_t); |
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146 if (_verbose) { |
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147 if (_print_cr) { |
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148 _logfile->print_cr(", %3.7f secs]", _t.seconds()); |
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149 } else { |
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150 _logfile->print(", %3.7f secs]", _t.seconds()); |
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151 } |
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152 _logfile->flush(); |
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153 } |
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154 } |
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155 } |
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156 |
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157 TraceCPUTime::TraceCPUTime(bool doit, |
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158 bool print_cr, |
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159 outputStream *logfile) : |
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160 _active(doit), |
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161 _print_cr(print_cr), |
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162 _starting_user_time(0.0), |
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163 _starting_system_time(0.0), |
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164 _starting_real_time(0.0), |
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165 _logfile(logfile), |
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166 _error(false) { |
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167 if (_active) { |
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168 if (logfile != NULL) { |
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169 _logfile = logfile; |
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170 } else { |
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171 _logfile = tty; |
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172 } |
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173 |
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174 _error = !os::getTimesSecs(&_starting_real_time, |
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175 &_starting_user_time, |
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176 &_starting_system_time); |
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177 } |
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178 } |
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179 |
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180 TraceCPUTime::~TraceCPUTime() { |
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181 if (_active) { |
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182 bool valid = false; |
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183 if (!_error) { |
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184 double real_secs; // walk clock time |
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185 double system_secs; // system time |
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186 double user_secs; // user time for all threads |
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187 |
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188 double real_time, user_time, system_time; |
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189 valid = os::getTimesSecs(&real_time, &user_time, &system_time); |
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190 if (valid) { |
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191 |
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192 user_secs = user_time - _starting_user_time; |
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193 system_secs = system_time - _starting_system_time; |
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194 real_secs = real_time - _starting_real_time; |
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195 |
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196 _logfile->print(" [Times: user=%3.2f sys=%3.2f, real=%3.2f secs] ", |
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197 user_secs, system_secs, real_secs); |
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198 |
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199 } else { |
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200 _logfile->print("[Invalid result in TraceCPUTime]"); |
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201 } |
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202 } else { |
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203 _logfile->print("[Error in TraceCPUTime]"); |
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204 } |
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205 if (_print_cr) { |
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206 _logfile->print_cr(""); |
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207 } |
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208 } |
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209 } |