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186 lines
4.2 KiB
186 lines
4.2 KiB
/*
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Rosegarden
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A sequencer and musical notation editor.
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This program is Copyright 2000-2008
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Guillaume Laurent <glaurent@telegraph-road.org>,
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Chris Cannam <cannam@all-day-breakfast.com>,
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Richard Bown <bownie@bownie.com>
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The moral right of the authors to claim authorship of this work
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has been asserted.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version. See the file
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COPYING included with this distribution for more information.
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*/
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#include <iostream>
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#include "Profiler.h"
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#include <vector>
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#include <algorithm>
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//#define NO_TIMING 1
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#ifdef NDEBUG
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#define NO_TIMING 1
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#endif
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using std::cerr;
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using std::endl;
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namespace Rosegarden
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{
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Profiles* Profiles::m_instance = 0;
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Profiles* Profiles::getInstance()
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{
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if (!m_instance) m_instance = new Profiles();
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return m_instance;
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}
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Profiles::Profiles()
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{
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}
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Profiles::~Profiles()
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{
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dump();
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}
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void Profiles::accumulate(const char* id, clock_t time, RealTime rt)
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{
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#ifndef NO_TIMING
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ProfilePair &pair(m_profiles[id]);
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++pair.first;
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pair.second.first += time;
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pair.second.second = pair.second.second + rt;
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TimePair &timePair(m_lastCalls[id]);
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timePair.first = time;
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timePair.second = rt;
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#endif
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}
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void Profiles::dump()
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{
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#ifndef NO_TIMING
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cerr << "Profiles::dump() :\n";
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// I'm finding these two confusing dumped out in random order,
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// so I'm going to sort them alphabetically:
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std::vector<const char *> profileNames;
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for (ProfileMap::iterator i = m_profiles.begin();
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i != m_profiles.end(); ++i) {
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profileNames.push_back((*i).first);
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}
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std::sort(profileNames.begin(), profileNames.end());
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for (std::vector<const char *>::iterator i = profileNames.begin();
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i != profileNames.end(); ++i) {
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cerr << "-> " << *i << ": CPU: "
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<< m_profiles[*i].first << " calls, "
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<< int((m_profiles[*i].second.first * 1000.0) / CLOCKS_PER_SEC) << "ms, "
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<< (((double)m_profiles[*i].second.first * 1000000.0 /
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(double)m_profiles[*i].first) / CLOCKS_PER_SEC) << "us/call"
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<< endl;
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cerr << "-> " << *i << ": real: "
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<< m_profiles[*i].first << " calls, "
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<< m_profiles[*i].second.second << ", "
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<< (m_profiles[*i].second.second / m_profiles[*i].first)
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<< "/call"
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<< endl;
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cerr << "-> " << *i << ": last: CPU: "
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<< int((m_lastCalls[*i].first * 1000.0) / CLOCKS_PER_SEC) << "ms, "
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<< " real: "
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<< m_lastCalls[*i].second << endl;
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}
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cerr << "Profiles::dump() finished\n";
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#endif
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}
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Profiler::Profiler(const char* c, bool showOnDestruct)
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: m_c(c),
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m_showOnDestruct(showOnDestruct)
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{
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#ifndef NO_TIMING
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m_startCPU = clock();
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struct timeval tv;
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(void)gettimeofday(&tv, 0);
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m_startTime = RealTime(tv.tv_sec, tv.tv_usec * 1000);
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#endif
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}
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void
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Profiler::update()
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{
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#ifndef NO_TIMING
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clock_t elapsedCPU = clock() - m_startCPU;
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struct timeval tv;
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(void)gettimeofday(&tv, 0);
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RealTime elapsedTime = RealTime(tv.tv_sec, tv.tv_usec * 1000) - m_startTime;
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cerr << "Profiler : id = " << m_c
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<< " - elapsed so far = " << ((elapsedCPU * 1000) / CLOCKS_PER_SEC)
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<< "ms CPU, " << elapsedTime << " real" << endl;
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#endif
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}
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Profiler::~Profiler()
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{
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#ifndef NO_TIMING
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clock_t elapsedCPU = clock() - m_startCPU;
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struct timeval tv;
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(void)gettimeofday(&tv, 0);
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RealTime elapsedTime = RealTime(tv.tv_sec, tv.tv_usec * 1000) - m_startTime;
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Profiles::getInstance()->accumulate(m_c, elapsedCPU, elapsedTime);
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if (m_showOnDestruct)
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cerr << "Profiler : id = " << m_c
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<< " - elapsed = " << ((elapsedCPU * 1000) / CLOCKS_PER_SEC)
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<< "ms CPU, " << elapsedTime << " real" << endl;
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#endif
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}
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}
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/* A little usage demo
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int main()
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{
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{
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Profiler foo("test");
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sleep(1);
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}
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{
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Profiler foo("test");
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sleep(1);
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}
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{
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Profiler foo("test2");
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sleep(1);
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}
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Profiles::getInstance()->dump();
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return 0;
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}
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*/
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