00001 #include "Profiler.h"
00002 #include "debuget.h"
00003
00004 const float Profiler::HistCurve = 4.05;
00005
00006 float Profiler::buckets[Profiler::HistSize];
00007
00008 unsigned int Profiler::infosOffset=offsetof(ProfilerOfSize<1>,infos);
00009
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00014 Profiler::Timer::Timer(unsigned int id, Profiler* prof) : _prof(prof), _id(id), _parent(-1U), _t(0L) {
00015 if(_prof!=NULL)
00016 _prof->setCurrent(*this);
00017 }
00018
00019 Profiler::Timer::~Timer() {
00020 if(_prof!=NULL)
00021 _prof->finished(*this);
00022 }
00023
00024 void Profiler::Timer::setID(unsigned int id, Profiler* prof) {
00025 _id=id;
00026 _prof=prof;
00027 if(_prof!=NULL)
00028 _prof->setCurrent(*this);
00029 }
00030
00031 Profiler::SectionInfo::SectionInfo()
00032 : totalTime(0L),lastTime(0L),totalInterval(0L),childTime(0L),execExpAvg(0),interExpAvg(0),calls(0)
00033 {
00034 name[0]='\0';
00035 for(unsigned int j=0; j<HistSize; j++)
00036 execHist[j]=interHist[j]=0;
00037 }
00038
00039 void Profiler::SectionInfo::reset() {
00040 totalTime.Set(0L);
00041 lastTime.Set();
00042 totalInterval.Set(0L);
00043 childTime.Set(0L);
00044 execExpAvg=0;
00045 interExpAvg=0;
00046 for(unsigned int j=0; j<HistSize; j++)
00047 execHist[j]=interHist[j]=0;
00048 calls=0;
00049 }
00050
00051 void Profiler::initBuckets() {
00052 float g=HistTime/pow(HistSize,HistCurve)/1000;
00053 for(unsigned int i=1; i<=HistSize; i++)
00054 buckets[i-1]=g*pow(i,HistCurve);
00055 }
00056
00057 unsigned int Profiler::getNewID(const char* name) {
00058 ASSERTRETVAL(sectionsUsed<maxSections,"Too many sections registered (increase ProfilerOfSize<MaxSections>)",-1U);
00059 SectionInfo * infos=getInfos();
00060 #ifdef DEBUG
00061 for(unsigned int i=0; i<sectionsUsed; i++)
00062 ASSERTRETVAL(strncmp(infos[i].name,name,MaxSectionNameLen-1)!=0,"Already using name " << name,-1U);
00063 #endif
00064 unsigned int id=sectionsUsed++;
00065 strncpy(infos[id].name,name,MaxSectionNameLen-1);
00066 infos[id].name[MaxSectionNameLen-1]='\0';
00067 return id;
00068 }
00069
00070 std::string Profiler::report() {
00071 char tmp[255];
00072 SectionInfo * infos=getInfos();
00073 sprintf(tmp,"Profiling information since: %f to %f\n",startTime.Value(),TimeET().Value());
00074 std::string ans(tmp);
00075 for(unsigned int i=0; i<sectionsUsed; i++) {
00076 sprintf(tmp,"%s:\n",infos[i].name); ans+=tmp;
00077 unsigned int calls=infos[i].calls;
00078 sprintf(tmp,"\t%d calls\n",calls); ans+=tmp;
00079 if(calls>0) {
00080 sprintf(tmp,"\t%f ms avg\n",infos[i].totalTime.Value()/calls*1000); ans+=tmp;
00081 sprintf(tmp,"\t%f ms exp.avg\n",infos[i].execExpAvg*1000); ans+=tmp;
00082 sprintf(tmp,"\t%f ms avg child time (%f%%)\n",infos[i].childTime.Value()/calls*1000,((int)(infos[i].childTime.Value()/infos[i].totalTime.Value()*1000))/10.0); ans+=tmp;
00083 sprintf(tmp,"\t%f ms avg inter (%f fps)\n",infos[i].totalInterval.Value()/calls*1000,calls/infos[i].totalInterval.Value()); ans+=tmp;
00084 sprintf(tmp,"\t%f ms exp.avg (%f fps)\n",infos[i].interExpAvg*1000,1/infos[i].interExpAvg); ans+=tmp;
00085 ans+="\tExec: ";
00086 for(unsigned int j=0; j<HistSize; j++) {
00087 sprintf(tmp,"%d ",infos[i].execHist[j]);
00088 ans+=tmp;
00089 }
00090 ans+="\n\tInter: ";
00091 for(unsigned int j=0; j<HistSize; j++) {
00092 sprintf(tmp,"%d ",infos[i].interHist[j]);
00093 ans+=tmp;
00094 }
00095 ans+="\n";
00096 }
00097 }
00098 ans+="Bucket distribution (in ms):\n\t0";
00099 for(unsigned int j=0; j<HistSize; j++) {
00100 sprintf(tmp,"<%.3g, ",buckets[j]*1000);
00101 ans+=tmp;
00102 }
00103 ans+="\n";
00104 return ans;
00105 }
00106
00107 void Profiler::reset() {
00108 SectionInfo * infos=getInfos();
00109 for(unsigned int i=0; i<sectionsUsed; i++)
00110 infos[i].reset();
00111 startTime.Set();
00112 }
00113
00114 Profiler::Profiler(unsigned int mx)
00115 : curSection(-1U), startTime(), gamma(.85), maxSections(mx), sectionsUsed(0)
00116 { }
00117
00118
00119 void Profiler::setCurrent(Timer& tr) {
00120 SectionInfo& info=getInfos()[tr._id];
00121 tr._parent=curSection;
00122 curSection=tr._id;
00123 info.calls++;
00124 if(info.calls>1) {
00125 TimeET diff=info.lastTime.Age();
00126 info.totalInterval+=diff;
00127 if(info.calls==2)
00128 info.interExpAvg=diff.Value();
00129 else
00130 info.interExpAvg=info.interExpAvg*gamma+(float)diff.Value()*(1-gamma);
00131 if(diff.Value()*1000>HistTime)
00132 info.interHist[HistSize-1]++;
00133 else
00134 info.interHist[getBucket(diff.Value())]++;
00135 }
00136 tr._t.Set();
00137 info.lastTime=tr._t;
00138 }
00139
00140 void Profiler::finished(Timer& tr) {
00141 TimeET diff=tr.elapsed();
00142 SectionInfo& info=getInfos()[tr._id];
00143 info.totalTime+=diff;
00144 if(tr._parent!=-1U)
00145 getInfos()[tr._parent].childTime+=diff;
00146
00147 if(info.calls==1)
00148 info.execExpAvg=diff.Value();
00149 else
00150 info.execExpAvg=info.execExpAvg*gamma+(float)diff.Value()*(1-gamma);
00151 if(diff.Value()*1000>HistTime)
00152 info.execHist[HistSize-1]++;
00153 else
00154 info.execHist[getBucket(diff.Value())]++;
00155
00156
00157 curSection=tr._parent;
00158 }
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