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/* |
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Copyright (c) 2010-2013 Tommaso Urli |
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Tommaso Urli tommaso.urli@uniud.it University of Udine |
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Permission is hereby granted, free of charge, to any person obtaining |
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a copy of this software and associated documentation files (the |
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"Software"), to deal in the Software without restriction, including |
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without limitation the rights to use, copy, modify, merge, publish, |
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distribute, sublicense, and/or sell copies of the Software, and to |
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permit persons to whom the Software is furnished to do so, subject to |
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the following conditions: |
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The above copyright notice and this permission notice shall be |
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included in all copies or substantial portions of the Software. |
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE |
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LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
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OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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*/ |
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#ifndef WIN32 |
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#include <sys/time.h> |
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#else |
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#include <Windows.h> |
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#include <iomanip> |
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#endif |
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#include <iomanip> // std::setprecision |
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#include "sot/core/stop-watch.hh" |
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using std::map; |
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using std::ostringstream; |
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using std::string; |
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//#define START_PROFILER(name) getProfiler().start(name) |
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//#define STOP_PROFILER(name) getProfiler().stop(name) |
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Stopwatch &getProfiler() { |
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✓✓✓✗ ✓✗✗✗
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static Stopwatch s(REAL_TIME); // alternatives are CPU_TIME and REAL_TIME |
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return s; |
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} |
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Stopwatch::Stopwatch(StopwatchMode _mode) : active(true), mode(_mode) { |
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records_of = new map<string, PerformanceData>(); |
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} |
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✓✗ |
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Stopwatch::~Stopwatch() { delete records_of; } |
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void Stopwatch::set_mode(StopwatchMode new_mode) { mode = new_mode; } |
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bool Stopwatch::performance_exists(string perf_name) { |
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✓✗ |
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return (records_of->find(perf_name) != records_of->end()); |
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} |
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long double Stopwatch::take_time() { |
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✗✓ |
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if (mode == CPU_TIME) { |
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// Use ctime |
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return clock(); |
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✓✗ |
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} else if (mode == REAL_TIME) { |
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// Query operating system |
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#ifdef WIN32 |
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/* In case of usage under Windows */ |
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FILETIME ft; |
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LARGE_INTEGER intervals; |
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// Get the amount of 100 nanoseconds intervals elapsed since January 1, 1601 |
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// (UTC) |
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GetSystemTimeAsFileTime(&ft); |
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intervals.LowPart = ft.dwLowDateTime; |
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intervals.HighPart = ft.dwHighDateTime; |
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long double measure = intervals.QuadPart; |
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measure -= 116444736000000000.0; // Convert to UNIX epoch time |
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measure /= 10000000.0; // Convert to seconds |
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return measure; |
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#else |
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/* Linux, MacOS, ... */ |
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struct timeval tv; |
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gettimeofday(&tv, NULL); |
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long double measure = tv.tv_usec; |
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measure /= 1000000.0; // Convert to seconds |
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measure += tv.tv_sec; // Add seconds part |
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return measure; |
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#endif |
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} else { |
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// If mode == NONE, clock has not been initialized, then throw exception |
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throw StopwatchException("Clock not initialized to a time taking mode!"); |
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} |
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} |
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void Stopwatch::start(string perf_name) { |
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✗✓ |
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if (!active) return; |
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// Just works if not already present |
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✓✗✓✗
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records_of->insert(make_pair(perf_name, PerformanceData())); |
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PerformanceData &perf_info = records_of->find(perf_name)->second; |
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// Take ctime |
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perf_info.clock_start = take_time(); |
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// If this is a new start (i.e. not a restart) |
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// if (!perf_info.paused) |
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// perf_info.last_time = 0; |
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perf_info.paused = false; |
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} |
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void Stopwatch::stop(string perf_name) { |
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✗✓ |
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if (!active) return; |
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long double clock_end = take_time(); |
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// Try to recover performance data |
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✓✗✗✓
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if (!performance_exists(perf_name)) |
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throw StopwatchException("Performance not initialized."); |
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PerformanceData &perf_info = records_of->find(perf_name)->second; |
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// check whether the performance has been reset |
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✗✓ |
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if (perf_info.clock_start == 0) return; |
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perf_info.stops++; |
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long double lapse = clock_end - perf_info.clock_start; |
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✗✓ |
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if (mode == CPU_TIME) lapse /= (double)CLOCKS_PER_SEC; |
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// Update last time |
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perf_info.last_time = lapse; |
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// Update min/max time |
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✓✗ |
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if (lapse >= perf_info.max_time) perf_info.max_time = lapse; |
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✓✗✓✗
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if (lapse <= perf_info.min_time || perf_info.min_time == 0) |
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perf_info.min_time = lapse; |
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// Update total time |
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perf_info.total_time += lapse; |
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} |
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void Stopwatch::pause(string perf_name) { |
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if (!active) return; |
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long double clock_end = clock(); |
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// Try to recover performance data |
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if (!performance_exists(perf_name)) |
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throw StopwatchException("Performance not initialized."); |
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PerformanceData &perf_info = records_of->find(perf_name)->second; |
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// check whether the performance has been reset |
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if (perf_info.clock_start == 0) return; |
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long double lapse = clock_end - perf_info.clock_start; |
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// Update total time |
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perf_info.last_time += lapse; |
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perf_info.total_time += lapse; |
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} |
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void Stopwatch::reset_all() { |
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if (!active) return; |
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map<string, PerformanceData>::iterator it; |
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for (it = records_of->begin(); it != records_of->end(); ++it) { |
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reset(it->first); |
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} |
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} |
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void Stopwatch::report_all(int precision, std::ostream &output) { |
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if (!active) return; |
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output << "\n*** PROFILING RESULTS [ms] (min - avg - max - lastTime - " |
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"nSamples - totalTime) ***\n"; |
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map<string, PerformanceData>::iterator it; |
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for (it = records_of->begin(); it != records_of->end(); ++it) { |
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report(it->first, precision, output); |
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} |
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} |
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void Stopwatch::reset(string perf_name) { |
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if (!active) return; |
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// Try to recover performance data |
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if (!performance_exists(perf_name)) |
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throw StopwatchException("Performance not initialized."); |
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PerformanceData &perf_info = records_of->find(perf_name)->second; |
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perf_info.clock_start = 0; |
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perf_info.total_time = 0; |
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perf_info.min_time = 0; |
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perf_info.max_time = 0; |
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perf_info.last_time = 0; |
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perf_info.paused = false; |
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perf_info.stops = 0; |
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} |
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void Stopwatch::turn_on() { |
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std::cout << "Stopwatch active." << std::endl; |
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active = true; |
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} |
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void Stopwatch::turn_off() { |
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std::cout << "Stopwatch inactive." << std::endl; |
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active = false; |
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} |
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void Stopwatch::report(string perf_name, int precision, std::ostream &output) { |
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if (!active) return; |
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// Try to recover performance data |
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if (!performance_exists(perf_name)) |
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throw StopwatchException("Performance not initialized."); |
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PerformanceData &perf_info = records_of->find(perf_name)->second; |
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string pad = ""; |
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for (size_t i = perf_name.length(); i < STOP_WATCH_MAX_NAME_LENGTH; i++) |
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pad.append(" "); |
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output << perf_name << pad; |
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output << std::fixed << std::setprecision(precision) |
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<< (perf_info.min_time * 1e3) << "\t"; |
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output << std::fixed << std::setprecision(precision) |
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<< (perf_info.total_time * 1e3 / (long double)perf_info.stops) << "\t"; |
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output << std::fixed << std::setprecision(precision) |
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<< (perf_info.max_time * 1e3) << "\t"; |
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output << std::fixed << std::setprecision(precision) |
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<< (perf_info.last_time * 1e3) << "\t"; |
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output << std::fixed << std::setprecision(precision) << perf_info.stops |
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<< std::endl; |
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output << std::fixed << std::setprecision(precision) |
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<< perf_info.total_time * 1e3 << std::endl; |
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} |
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long double Stopwatch::get_time_so_far(string perf_name) { |
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// Try to recover performance data |
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if (!performance_exists(perf_name)) |
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throw StopwatchException("Performance not initialized."); |
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long double lapse = |
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(take_time() - (records_of->find(perf_name)->second).clock_start); |
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if (mode == CPU_TIME) lapse /= (double)CLOCKS_PER_SEC; |
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return lapse; |
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} |
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long double Stopwatch::get_total_time(string perf_name) { |
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// Try to recover performance data |
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if (!performance_exists(perf_name)) |
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throw StopwatchException("Performance not initialized."); |
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PerformanceData &perf_info = records_of->find(perf_name)->second; |
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return perf_info.total_time; |
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} |
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long double Stopwatch::get_average_time(string perf_name) { |
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// Try to recover performance data |
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if (!performance_exists(perf_name)) |
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throw StopwatchException("Performance not initialized."); |
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PerformanceData &perf_info = records_of->find(perf_name)->second; |
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return (perf_info.total_time / (long double)perf_info.stops); |
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} |
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long double Stopwatch::get_min_time(string perf_name) { |
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// Try to recover performance data |
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if (!performance_exists(perf_name)) |
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throw StopwatchException("Performance not initialized."); |
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PerformanceData &perf_info = records_of->find(perf_name)->second; |
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return perf_info.min_time; |
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} |
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long double Stopwatch::get_max_time(string perf_name) { |
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// Try to recover performance data |
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if (!performance_exists(perf_name)) |
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throw StopwatchException("Performance not initialized."); |
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PerformanceData &perf_info = records_of->find(perf_name)->second; |
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return perf_info.max_time; |
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} |
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long double Stopwatch::get_last_time(string perf_name) { |
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// Try to recover performance data |
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if (!performance_exists(perf_name)) |
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throw StopwatchException("Performance not initialized."); |
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PerformanceData &perf_info = records_of->find(perf_name)->second; |
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return perf_info.last_time; |
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} |