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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
/*
Rubber Band
An audio time-stretching and pitch-shifting library.
Copyright 2007-2008 Chris Cannam.
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 "Profiler.h"
#include <algorithm>
#include <set>
#include <string>
#include <map>
#include <cstdio>
namespace RubberBand {
#ifndef NO_TIMING
Profiler::ProfileMap
Profiler::m_profiles;
Profiler::WorstCallMap
Profiler::m_worstCalls;
void
Profiler::add(const char *id, float ms)
{
ProfileMap::iterator pmi = m_profiles.find(id);
if (pmi != m_profiles.end()) {
++pmi->second.first;
pmi->second.second += ms;
} else {
m_profiles[id] = TimePair(1, ms);
}
WorstCallMap::iterator wci = m_worstCalls.find(id);
if (wci != m_worstCalls.end()) {
if (ms > wci->second) wci->second = ms;
} else {
m_worstCalls[id] = ms;
}
}
void
Profiler::dump()
{
#ifdef PROFILE_CLOCKS
fprintf(stderr, "Profiling points [CPU time]:\n");
#else
fprintf(stderr, "Profiling points [Wall time]:\n");
#endif
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 TimePair &pp(j->second);
fprintf(stderr, "%s(%d):\n", *i, pp.first);
fprintf(stderr, "\tReal: \t%f ms \t[%f ms total]\n",
(pp.second / pp.first),
(pp.second));
WorstCallMap::const_iterator k = m_worstCalls.find(*i);
if (k == m_worstCalls.end()) continue;
fprintf(stderr, "\tWorst:\t%f ms/call\n", k->second);
}
typedef std::multimap<float, 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, i->first));
avgmap.insert(TimeRMap::value_type(i->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, i->first));
}
fprintf(stderr, "\nBy total:\n");
for (TimeRMap::const_iterator i = totmap.end(); i != totmap.begin(); ) {
--i;
fprintf(stderr, "%-40s %f ms\n", i->second, i->first);
}
fprintf(stderr, "\nBy average:\n");
for (TimeRMap::const_iterator i = avgmap.end(); i != avgmap.begin(); ) {
--i;
fprintf(stderr, "%-40s %f ms\n", i->second, i->first);
}
fprintf(stderr, "\nBy worst case:\n");
for (TimeRMap::const_iterator i = worstmap.end(); i != worstmap.begin(); ) {
--i;
fprintf(stderr, "%-40s %f ms\n", i->second, i->first);
}
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);
}
}
Profiler::Profiler(const char* c) :
m_c(c),
m_ended(false)
{
#ifdef PROFILE_CLOCKS
m_start = clock();
#else
(void)gettimeofday(&m_start, 0);
#endif
}
Profiler::~Profiler()
{
if (!m_ended) end();
}
void
Profiler::end()
{
#ifdef PROFILE_CLOCKS
clock_t end = clock();
clock_t elapsed = end - m_start;
float ms = float((double(elapsed) / double(CLOCKS_PER_SEC)) * 1000.0);
#else
struct timeval tv;
(void)gettimeofday(&tv, 0);
tv.tv_sec -= m_start.tv_sec;
if (tv.tv_usec < m_start.tv_usec) {
tv.tv_usec += 1000000;
tv.tv_sec -= 1;
}
tv.tv_usec -= m_start.tv_usec;
float ms = float((double(tv.tv_sec) + (double(tv.tv_usec) / 1000000.0)) * 1000.0);
#endif
add(m_c, ms);
m_ended = true;
}
#endif
}
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