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Restoring Perfcounts

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This commit is contained in:
Guido Cossu 2017-10-24 13:32:02 +01:00
parent 657779374b
commit 2986aa76f8
2 changed files with 15 additions and 18 deletions
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3
lib/perfmon/PerfCount.h
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@ -90,10 +90,9 @@ inline uint64_t cyclecount(void){
}
#elif defined __x86_64__
inline uint64_t cyclecount(void){
//return __rdtsc();
return __rdtsc();
// unsigned int dummy;
// return __rdtscp(&dummy);
return 0; // <- remove this;
}
#else

30
lib/perfmon/Stat.cc
View File

@ -57,37 +57,35 @@ void PmuStat::start(void)
pmu_start();
++count;
xmemctrs(&mrstart, &mwstart);
//tstart = __rdtsc();
tstart=0;
tstart = __rdtsc();
#endif
}
void PmuStat::enter(int t)
{
#ifdef __x86_64__
counters[0][t] = 0;//__rdpmc(0);
counters[1][t] = 0;//__rdpmc(1);
counters[2][t] = 0;//__rdpmc((1<<30)|0);
counters[3][t] = 0;//__rdpmc((1<<30)|1);
counters[4][t] = 0;//__rdpmc((1<<30)|2);
counters[5][t] = 0;//__rdtsc();
counters[0][t] = __rdpmc(0);
counters[1][t] = __rdpmc(1);
counters[2][t] = __rdpmc((1<<30)|0);
counters[3][t] = __rdpmc((1<<30)|1);
counters[4][t] = __rdpmc((1<<30)|2);
counters[5][t] = __rdtsc();
#endif
}
void PmuStat::exit(int t)
{
#ifdef __x86_64__
counters[0][t] = 0;//__rdpmc(0) - counters[0][t];
counters[1][t] = 0;// __rdpmc(1) - counters[1][t];
counters[2][t] = 0;// __rdpmc((1<<30)|0) - counters[2][t];
counters[3][t] = 0;// __rdpmc((1<<30)|1) - counters[3][t];
counters[4][t] = 0;// __rdpmc((1<<30)|2) - counters[4][t];
counters[5][t] = 0;// __rdtsc() - counters[5][t];
counters[0][t] = __rdpmc(0) - counters[0][t];
counters[1][t] = __rdpmc(1) - counters[1][t];
counters[2][t] = __rdpmc((1<<30)|0) - counters[2][t];
counters[3][t] = __rdpmc((1<<30)|1) - counters[3][t];
counters[4][t] = __rdpmc((1<<30)|2) - counters[4][t];
counters[5][t] = __rdtsc() - counters[5][t];
#endif
}
void PmuStat::accum(int nthreads)
{
#ifdef __x86_64__
// tend = __rdtsc();
tend =0 ;
tend = __rdtsc();
xmemctrs(&mrend, &mwend);
pmu_stop();
for (int t = 0; t < nthreads; ++t) {