annotate base/Profiler.cpp @ 960:5173e56e17f7

Fix fallthrough in switch (from coverity scan)
author Chris Cannam
date Wed, 03 Sep 2014 09:56:18 +0100 (2014-09-03)
parents e802e550a1f2
children 16dc7307d43a
rev   line source
Chris@49 1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
Chris@0 2
Chris@0 3 /*
Chris@52 4 Sonic Visualiser
Chris@52 5 An audio file viewer and annotation editor.
Chris@52 6 Centre for Digital Music, Queen Mary, University of London.
Chris@0 7
Chris@52 8 This program is free software; you can redistribute it and/or
Chris@52 9 modify it under the terms of the GNU General Public License as
Chris@52 10 published by the Free Software Foundation; either version 2 of the
Chris@52 11 License, or (at your option) any later version. See the file
Chris@52 12 COPYING included with this distribution for more information.
Chris@0 13 */
Chris@0 14
Chris@0 15 /*
Chris@0 16 This is a modified version of a source file from the
Chris@0 17 Rosegarden MIDI and audio sequencer and notation editor.
Chris@202 18 This file copyright 2000-2006 Chris Cannam, Guillaume Laurent,
Chris@202 19 and QMUL.
Chris@0 20 */
Chris@0 21
Chris@0 22 #include <iostream>
Chris@0 23 #include "Profiler.h"
Chris@0 24
Chris@658 25 #include <cstdio>
Chris@658 26
Chris@0 27 #include <vector>
Chris@0 28 #include <algorithm>
Chris@183 29 #include <set>
Chris@183 30 #include <map>
Chris@0 31
Chris@0 32 Profiles* Profiles::m_instance = 0;
Chris@0 33
Chris@0 34 Profiles* Profiles::getInstance()
Chris@0 35 {
Chris@0 36 if (!m_instance) m_instance = new Profiles();
Chris@0 37
Chris@0 38 return m_instance;
Chris@0 39 }
Chris@0 40
Chris@0 41 Profiles::Profiles()
Chris@0 42 {
Chris@0 43 }
Chris@0 44
Chris@0 45 Profiles::~Profiles()
Chris@0 46 {
Chris@0 47 dump();
Chris@0 48 }
Chris@0 49
Chris@259 50 void Profiles::accumulate(
Chris@259 51 #ifndef NO_TIMING
Chris@259 52 const char* id, clock_t time, RealTime rt
Chris@259 53 #else
Chris@259 54 const char*, clock_t, RealTime
Chris@259 55 #endif
Chris@259 56 )
Chris@0 57 {
Chris@0 58 #ifndef NO_TIMING
Chris@0 59 ProfilePair &pair(m_profiles[id]);
Chris@0 60 ++pair.first;
Chris@0 61 pair.second.first += time;
Chris@0 62 pair.second.second = pair.second.second + rt;
Chris@0 63
Chris@183 64 TimePair &lastPair(m_lastCalls[id]);
Chris@183 65 lastPair.first = time;
Chris@183 66 lastPair.second = rt;
Chris@183 67
Chris@183 68 TimePair &worstPair(m_worstCalls[id]);
Chris@183 69 if (time > worstPair.first) {
Chris@183 70 worstPair.first = time;
Chris@183 71 }
Chris@183 72 if (rt > worstPair.second) {
Chris@183 73 worstPair.second = rt;
Chris@183 74 }
Chris@0 75 #endif
Chris@0 76 }
Chris@0 77
Chris@183 78 void Profiles::dump() const
Chris@0 79 {
Chris@183 80 #ifndef NO_TIMING
Chris@0 81
Chris@183 82 fprintf(stderr, "Profiling points:\n");
Chris@0 83
Chris@183 84 fprintf(stderr, "\nBy name:\n");
Chris@183 85
Chris@183 86 typedef std::set<const char *, std::less<std::string> > StringSet;
Chris@183 87
Chris@183 88 StringSet profileNames;
Chris@183 89 for (ProfileMap::const_iterator i = m_profiles.begin();
Chris@183 90 i != m_profiles.end(); ++i) {
Chris@183 91 profileNames.insert(i->first);
Chris@0 92 }
Chris@0 93
Chris@183 94 for (StringSet::const_iterator i = profileNames.begin();
Chris@183 95 i != profileNames.end(); ++i) {
Chris@0 96
Chris@183 97 ProfileMap::const_iterator j = m_profiles.find(*i);
Chris@0 98
Chris@183 99 if (j == m_profiles.end()) continue;
Chris@0 100
Chris@183 101 const ProfilePair &pp(j->second);
Chris@0 102
Chris@183 103 fprintf(stderr, "%s(%d):\n", *i, pp.first);
Chris@183 104
Chris@183 105 fprintf(stderr, "\tCPU: \t%.9g ms/call \t[%d ms total]\n",
Chris@183 106 (((double)pp.second.first * 1000.0 /
Chris@183 107 (double)pp.first) / CLOCKS_PER_SEC),
Chris@183 108 int((pp.second.first * 1000.0) / CLOCKS_PER_SEC));
Chris@183 109
Chris@183 110 fprintf(stderr, "\tReal: \t%s ms \t[%s ms total]\n",
Chris@183 111 ((pp.second.second / pp.first) * 1000).toString().c_str(),
Chris@183 112 (pp.second.second * 1000).toString().c_str());
Chris@183 113
Chris@183 114 WorstCallMap::const_iterator k = m_worstCalls.find(*i);
Chris@183 115 if (k == m_worstCalls.end()) continue;
Chris@183 116
Chris@183 117 const TimePair &wc(k->second);
Chris@183 118
Chris@183 119 fprintf(stderr, "\tWorst:\t%s ms/call \t[%d ms CPU]\n",
Chris@183 120 (wc.second * 1000).toString().c_str(),
Chris@183 121 int((wc.first * 1000.0) / CLOCKS_PER_SEC));
Chris@0 122 }
Chris@0 123
Chris@183 124 typedef std::multimap<RealTime, const char *> TimeRMap;
Chris@183 125 typedef std::multimap<int, const char *> IntRMap;
Chris@183 126
Chris@183 127 TimeRMap totmap, avgmap, worstmap;
Chris@183 128 IntRMap ncallmap;
Chris@183 129
Chris@183 130 for (ProfileMap::const_iterator i = m_profiles.begin();
Chris@183 131 i != m_profiles.end(); ++i) {
Chris@183 132 totmap.insert(TimeRMap::value_type(i->second.second.second, i->first));
Chris@183 133 avgmap.insert(TimeRMap::value_type(i->second.second.second /
Chris@183 134 i->second.first, i->first));
Chris@183 135 ncallmap.insert(IntRMap::value_type(i->second.first, i->first));
Chris@183 136 }
Chris@183 137
Chris@183 138 for (WorstCallMap::const_iterator i = m_worstCalls.begin();
Chris@183 139 i != m_worstCalls.end(); ++i) {
Chris@183 140 worstmap.insert(TimeRMap::value_type(i->second.second,
Chris@183 141 i->first));
Chris@183 142 }
Chris@183 143
Chris@183 144
Chris@183 145 fprintf(stderr, "\nBy total:\n");
Chris@183 146 for (TimeRMap::const_iterator i = totmap.end(); i != totmap.begin(); ) {
Chris@183 147 --i;
Chris@183 148 fprintf(stderr, "%-40s %s ms\n", i->second,
Chris@183 149 (i->first * 1000).toString().c_str());
Chris@183 150 }
Chris@183 151
Chris@183 152 fprintf(stderr, "\nBy average:\n");
Chris@183 153 for (TimeRMap::const_iterator i = avgmap.end(); i != avgmap.begin(); ) {
Chris@183 154 --i;
Chris@183 155 fprintf(stderr, "%-40s %s ms\n", i->second,
Chris@183 156 (i->first * 1000).toString().c_str());
Chris@183 157 }
Chris@183 158
Chris@183 159 fprintf(stderr, "\nBy worst case:\n");
Chris@183 160 for (TimeRMap::const_iterator i = worstmap.end(); i != worstmap.begin(); ) {
Chris@183 161 --i;
Chris@183 162 fprintf(stderr, "%-40s %s ms\n", i->second,
Chris@408 163 (i->first * 1000).toString().c_str());
Chris@183 164 }
Chris@183 165
Chris@183 166 fprintf(stderr, "\nBy number of calls:\n");
Chris@183 167 for (IntRMap::const_iterator i = ncallmap.end(); i != ncallmap.begin(); ) {
Chris@183 168 --i;
Chris@183 169 fprintf(stderr, "%-40s %d\n", i->second, i->first);
Chris@183 170 }
Chris@183 171
Chris@0 172 #endif
Chris@0 173 }
Chris@0 174
Chris@183 175 #ifndef NO_TIMING
Chris@183 176
Chris@408 177 Profiler::Profiler(const char* c, bool showOnDestruct) :
Chris@408 178 m_c(c),
Chris@408 179 m_showOnDestruct(showOnDestruct),
Chris@408 180 m_ended(false)
Chris@0 181 {
Chris@0 182 m_startCPU = clock();
Chris@0 183
Chris@0 184 struct timeval tv;
Chris@0 185 (void)gettimeofday(&tv, 0);
Chris@26 186 m_startTime = RealTime::fromTimeval(tv);
Chris@0 187 }
Chris@0 188
Chris@0 189 void
Chris@183 190 Profiler::update() const
Chris@0 191 {
Chris@0 192 clock_t elapsedCPU = clock() - m_startCPU;
Chris@0 193
Chris@0 194 struct timeval tv;
Chris@0 195 (void)gettimeofday(&tv, 0);
Chris@26 196 RealTime elapsedTime = RealTime::fromTimeval(tv) - m_startTime;
Chris@0 197
Chris@0 198 cerr << "Profiler : id = " << m_c
Chris@0 199 << " - elapsed so far = " << ((elapsedCPU * 1000) / CLOCKS_PER_SEC)
Chris@0 200 << "ms CPU, " << elapsedTime << " real" << endl;
Chris@0 201 }
Chris@0 202
Chris@0 203 Profiler::~Profiler()
Chris@0 204 {
Chris@408 205 if (!m_ended) end();
Chris@408 206 }
Chris@408 207
Chris@408 208 void
Chris@408 209 Profiler::end()
Chris@408 210 {
Chris@0 211 clock_t elapsedCPU = clock() - m_startCPU;
Chris@0 212
Chris@0 213 struct timeval tv;
Chris@0 214 (void)gettimeofday(&tv, 0);
Chris@26 215 RealTime elapsedTime = RealTime::fromTimeval(tv) - m_startTime;
Chris@0 216
Chris@0 217 Profiles::getInstance()->accumulate(m_c, elapsedCPU, elapsedTime);
Chris@0 218
Chris@0 219 if (m_showOnDestruct)
Chris@0 220 cerr << "Profiler : id = " << m_c
Chris@0 221 << " - elapsed = " << ((elapsedCPU * 1000) / CLOCKS_PER_SEC)
Chris@0 222 << "ms CPU, " << elapsedTime << " real" << endl;
Chris@408 223
Chris@408 224 m_ended = true;
Chris@0 225 }
Chris@0 226
Chris@183 227 #endif
Chris@183 228