view base/Profiler.cpp @ 299:576be0d0d218

* Merge transform directory from sv-match-alignment branch
  (the previous comment included notes for this stuff, but I missed it
  in the actual merge)
* Fix crash when a transform fails to create an output model and the
  thread that created the transform then deletes its input model thinking
  it's no longer needed, even though the transform run thread is still
  using it -- fix is to wait() on the transform before returning the
  null output model

/* -*- 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 <vector>
#include <algorithm>
#include <set>
#include <map>

using std::cerr;
using std::endl;

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((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((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(), i->second);
    }

    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_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()
{
    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;
}
 
#endif