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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
/*
Sonic Visualiser
An audio file viewer and annotation editor.
Centre for Digital Music, Queen Mary, University of London.
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.
*/
/*
This is a modified version of a source file from the
Rosegarden MIDI and audio sequencer and notation editor.
This file copyright 2000-2006 Chris Cannam, Guillaume Laurent,
and QMUL.
*/
#include <iostream>
#include "Profiler.h"
#include <cstdio>
#include <vector>
#include <algorithm>
#include <set>
#include <map>
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(
#ifndef NO_TIMING
const char* id, clock_t time, RealTime rt
#else
const char*, clock_t, RealTime
#endif
)
{
#ifndef NO_TIMING
ProfilePair &pair(m_profiles[id]);
++pair.first;
pair.second.first += time;
pair.second.second = pair.second.second + rt;
TimePair &lastPair(m_lastCalls[id]);
lastPair.first = time;
lastPair.second = rt;
TimePair &worstPair(m_worstCalls[id]);
if (time > worstPair.first) {
worstPair.first = time;
}
if (rt > worstPair.second) {
worstPair.second = rt;
}
#endif
}
void Profiles::dump() const
{
#ifndef NO_TIMING
fprintf(stderr, "Profiling points:\n");
fprintf(stderr, "\nBy name:\n");
typedef std::set<const char *, std::less<std::string> > StringSet;
StringSet profileNames;
for (ProfileMap::const_iterator i = m_profiles.begin();
i != m_profiles.end(); ++i) {
profileNames.insert(i->first);
}
for (StringSet::const_iterator i = profileNames.begin();
i != profileNames.end(); ++i) {
ProfileMap::const_iterator j = m_profiles.find(*i);
if (j == m_profiles.end()) continue;
const ProfilePair &pp(j->second);
fprintf(stderr, "%s(%d):\n", *i, pp.first);
fprintf(stderr, "\tCPU: \t%.9g ms/call \t[%d ms total]\n",
(((double)pp.second.first * 1000.0 /
(double)pp.first) / CLOCKS_PER_SEC),
int((double(pp.second.first) * 1000.0) / CLOCKS_PER_SEC));
fprintf(stderr, "\tReal: \t%s ms \t[%s ms total]\n",
((pp.second.second / pp.first) * 1000).toString().c_str(),
(pp.second.second * 1000).toString().c_str());
WorstCallMap::const_iterator k = m_worstCalls.find(*i);
if (k == m_worstCalls.end()) continue;
const TimePair &wc(k->second);
fprintf(stderr, "\tWorst:\t%s ms/call \t[%d ms CPU]\n",
(wc.second * 1000).toString().c_str(),
int((double(wc.first) * 1000.0) / CLOCKS_PER_SEC));
}
typedef std::multimap<RealTime, const char *> TimeRMap;
typedef std::multimap<int, const char *> IntRMap;
TimeRMap totmap, avgmap, worstmap;
IntRMap ncallmap;
for (ProfileMap::const_iterator i = m_profiles.begin();
i != m_profiles.end(); ++i) {
totmap.insert(TimeRMap::value_type(i->second.second.second, i->first));
avgmap.insert(TimeRMap::value_type(i->second.second.second /
i->second.first, i->first));
ncallmap.insert(IntRMap::value_type(i->second.first, i->first));
}
for (WorstCallMap::const_iterator i = m_worstCalls.begin();
i != m_worstCalls.end(); ++i) {
worstmap.insert(TimeRMap::value_type(i->second.second,
i->first));
}
fprintf(stderr, "\nBy total:\n");
for (TimeRMap::const_iterator i = totmap.end(); i != totmap.begin(); ) {
--i;
fprintf(stderr, "%-40s %s ms\n", i->second,
(i->first * 1000).toString().c_str());
}
fprintf(stderr, "\nBy average:\n");
for (TimeRMap::const_iterator i = avgmap.end(); i != avgmap.begin(); ) {
--i;
fprintf(stderr, "%-40s %s ms\n", i->second,
(i->first * 1000).toString().c_str());
}
fprintf(stderr, "\nBy worst case:\n");
for (TimeRMap::const_iterator i = worstmap.end(); i != worstmap.begin(); ) {
--i;
fprintf(stderr, "%-40s %s ms\n", i->second,
(i->first * 1000).toString().c_str());
}
fprintf(stderr, "\nBy number of calls:\n");
for (IntRMap::const_iterator i = ncallmap.end(); i != ncallmap.begin(); ) {
--i;
fprintf(stderr, "%-40s %d\n", i->second, i->first);
}
#endif
}
#ifndef NO_TIMING
Profiler::Profiler(const char* c, bool showOnDestruct) :
m_c(c),
m_showOnDestruct(showOnDestruct),
m_ended(false)
{
m_startCPU = clock();
struct timeval tv;
(void)gettimeofday(&tv, 0);
m_startTime = RealTime::fromTimeval(tv);
}
void
Profiler::update() const
{
clock_t elapsedCPU = clock() - m_startCPU;
struct timeval tv;
(void)gettimeofday(&tv, 0);
RealTime elapsedTime = RealTime::fromTimeval(tv) - m_startTime;
cerr << "Profiler : id = " << m_c
<< " - elapsed so far = " << ((elapsedCPU * 1000) / CLOCKS_PER_SEC)
<< "ms CPU, " << elapsedTime << " real" << endl;
}
Profiler::~Profiler()
{
if (!m_ended) end();
}
void
Profiler::end()
{
clock_t elapsedCPU = clock() - m_startCPU;
struct timeval tv;
(void)gettimeofday(&tv, 0);
RealTime elapsedTime = RealTime::fromTimeval(tv) - 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;
m_ended = true;
}
#endif
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