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// -*- c-basic-offset: 4 -*-
/*
Rosegarden
A sequencer and musical notation editor.
This program is Copyright 2000-2008
Guillaume Laurent <[email protected]>,
Chris Cannam <[email protected]>,
Richard Bown <[email protected]>
The moral right of the authors to claim authorship of this work
has been asserted.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version. See the file
COPYING included with this distribution for more information.
*/
#include <iostream>
#include "Profiler.h"
#include <vector>
#include <algorithm>
//#define NO_TIMING 1
#ifdef NDEBUG
#define NO_TIMING 1
#endif
using std::cerr;
using std::endl;
namespace Rosegarden
{
Profiles* Profiles::m_instance = 0;
Profiles* Profiles::getInstance()
{
if (!m_instance) m_instance = new Profiles();
return m_instance;
}
Profiles::Profiles()
{
}
Profiles::~Profiles()
{
dump();
}
void Profiles::accumulate(const char* id, clock_t time, RealTime rt)
{
#ifndef NO_TIMING
ProfilePair &pair(m_profiles[id]);
++pair.first;
pair.second.first += time;
pair.second.second = pair.second.second + rt;
TimePair &timePair(m_lastCalls[id]);
timePair.first = time;
timePair.second = rt;
#endif
}
void Profiles::dump()
{
#ifndef NO_TIMING
cerr << "Profiles::dump() :\n";
// I'm finding these two confusing dumped out in random order,
// so I'm going to sort them alphabetically:
std::vector<const char *> profileNames;
for (ProfileMap::iterator i = m_profiles.begin();
i != m_profiles.end(); ++i) {
profileNames.push_back((*i).first);
}
std::sort(profileNames.begin(), profileNames.end());
for (std::vector<const char *>::iterator i = profileNames.begin();
i != profileNames.end(); ++i) {
cerr << "-> " << *i << ": CPU: "
<< m_profiles[*i].first << " calls, "
<< int((m_profiles[*i].second.first * 1000.0) / CLOCKS_PER_SEC) << "ms, "
<< (((double)m_profiles[*i].second.first * 1000000.0 /
(double)m_profiles[*i].first) / CLOCKS_PER_SEC) << "us/call"
<< endl;
cerr << "-> " << *i << ": real: "
<< m_profiles[*i].first << " calls, "
<< m_profiles[*i].second.second << ", "
<< (m_profiles[*i].second.second / m_profiles[*i].first)
<< "/call"
<< endl;
cerr << "-> " << *i << ": last: CPU: "
<< int((m_lastCalls[*i].first * 1000.0) / CLOCKS_PER_SEC) << "ms, "
<< " real: "
<< m_lastCalls[*i].second << endl;
}
cerr << "Profiles::dump() finished\n";
#endif
}
Profiler::Profiler(const char* c, bool showOnDestruct)
: m_c(c),
m_showOnDestruct(showOnDestruct)
{
#ifndef NO_TIMING
m_startCPU = clock();
struct timeval tv;
(void)gettimeofday(&tv, 0);
m_startTime = RealTime(tv.tv_sec, tv.tv_usec * 1000);
#endif
}
void
Profiler::update()
{
#ifndef NO_TIMING
clock_t elapsedCPU = clock() - m_startCPU;
struct timeval tv;
(void)gettimeofday(&tv, 0);
RealTime elapsedTime = RealTime(tv.tv_sec, tv.tv_usec * 1000) - m_startTime;
cerr << "Profiler : id = " << m_c
<< " - elapsed so far = " << ((elapsedCPU * 1000) / CLOCKS_PER_SEC)
<< "ms CPU, " << elapsedTime << " real" << endl;
#endif
}
Profiler::~Profiler()
{
#ifndef NO_TIMING
clock_t elapsedCPU = clock() - m_startCPU;
struct timeval tv;
(void)gettimeofday(&tv, 0);
RealTime elapsedTime = RealTime(tv.tv_sec, tv.tv_usec * 1000) - m_startTime;
Profiles::getInstance()->accumulate(m_c, elapsedCPU, elapsedTime);
if (m_showOnDestruct)
cerr << "Profiler : id = " << m_c
<< " - elapsed = " << ((elapsedCPU * 1000) / CLOCKS_PER_SEC)
<< "ms CPU, " << elapsedTime << " real" << endl;
#endif
}
}
/* A little usage demo
int main()
{
{
Profiler foo("test");
sleep(1);
}
{
Profiler foo("test");
sleep(1);
}
{
Profiler foo("test2");
sleep(1);
}
Profiles::getInstance()->dump();
return 0;
}
*/
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