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optional use of tsc-counter

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This commit is contained in:
Joachim Schöberl 2017-11-13 11:57:10 +01:00
parent 786acf0388
commit 5dc501af26
2 changed files with 27 additions and 3 deletions
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6
libsrc/general/profiler.cpp
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@ -88,7 +88,11 @@ namespace netgen
if (counts[i] != 0 || usedcounter[i] != 0) if (counts[i] != 0 || usedcounter[i] != 0)
{ {
//fprintf(prof,"job %3i calls %8i, time %6.2f sec",i,counts[i],double(tottimes[i]) / CLOCKS_PER_SEC); //fprintf(prof,"job %3i calls %8i, time %6.2f sec",i,counts[i],double(tottimes[i]) / CLOCKS_PER_SEC);
fprintf(prof,"calls %8li, time %6.2f sec",counts[i],double(tottimes[i]) / CLOCKS_PER_SEC); #ifndef USE_TSC
fprintf(prof,"calls %8li, time %6.2f sec",counts[i],double(tottimes[i]) / CLOCKS_PER_SEC);
#else
fprintf(prof,"calls %8li, time %6.2f sec",counts[i],double(tottimes[i]) / 2.7e9);
#endif
if(usedcounter[i]) if(usedcounter[i])
fprintf(prof," %s",names[i].c_str()); fprintf(prof," %s",names[i].c_str());
else else

24
libsrc/general/profiler.hpp
View File

@ -17,6 +17,12 @@
#define VT_TRACER(n) #define VT_TRACER(n)
#endif #endif
// #define USE_TSC
#ifdef USE_TSC
#include <x86intrin.h> // for __rdtsc() CPU time step counter
#endif
namespace netgen namespace netgen
{ {
@ -35,7 +41,7 @@ public:
NgProfiler(); NgProfiler();
~NgProfiler(); ~NgProfiler();
static int CreateTimer (const string & name); static int CreateTimer (const string & name);
#ifndef USE_TSC
static void StartTimer (int nr) static void StartTimer (int nr)
{ {
starttimes[nr] = clock(); counts[nr]++; starttimes[nr] = clock(); counts[nr]++;
@ -47,7 +53,21 @@ public:
tottimes[nr] += clock()-starttimes[nr]; tottimes[nr] += clock()-starttimes[nr];
VT_USER_END (const_cast<char*> (names[nr].c_str())); VT_USER_END (const_cast<char*> (names[nr].c_str()));
} }
#else
static void StartTimer (int nr)
{
starttimes[nr] = __rdtsc(); counts[nr]++;
// VT_USER_START (const_cast<char*> (names[nr].c_str()));
// VT_USER_START ( (char * const) (names[nr].c_str()));
}
static void StopTimer (int nr)
{
tottimes[nr] += __rdtsc()-starttimes[nr];
VT_USER_END (const_cast<char*> (names[nr].c_str()));
}
#endif
//static void Print (ostream & ost); //static void Print (ostream & ost);
static void Print (FILE * prof); static void Print (FILE * prof);