thodg/libgit2/tests/perf/helper__perf__timer.c

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• Hash : d97ba7f6
  Author :
  Date : 2015-02-06T15:45:59
  

  Large merge perf test.

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• tests/perf/helper__perf__timer.c

• #include "clar_libgit2.h"
  #include "helper__perf__timer.h"
  
  #if defined(GIT_WIN32)
  
  void perf__timer__start(perf_timer *t)
  {
  	QueryPerformanceCounter(&t->time_started);
  }
  
  void perf__timer__stop(perf_timer *t)
  {
  	LARGE_INTEGER time_now;
  	QueryPerformanceCounter(&time_now);
  
  	t->sum.QuadPart += (time_now.QuadPart - t->time_started.QuadPart);
  }
  
  void perf__timer__report(perf_timer *t, const char *fmt, ...)
  {
  	va_list arglist;
  	LARGE_INTEGER freq;
  	double fraction;
  
  	QueryPerformanceFrequency(&freq);
  
  	fraction = ((double)t->sum.QuadPart) / ((double)freq.QuadPart);
  
  	printf("%10.3f: ", fraction);
  
  	va_start(arglist, fmt);
  	vprintf(fmt, arglist);
  	va_end(arglist);
  
  	printf("\n");
  }
  
  #else
  
  #include <sys/time.h>
  
  static uint32_t now_in_ms(void)
  {
  	struct timeval now;
  	gettimeofday(&now, NULL);
  	return (uint32_t)((now.tv_sec * 1000) + (now.tv_usec / 1000));
  }
  
  void perf__timer__start(perf_timer *t)
  {
  	t->time_started = now_in_ms();
  }
  
  void perf__timer__stop(perf_timer *t)
  {
  	uint32_t now = now_in_ms();
  	t->sum += (now - t->time_started);
  }
  
  void perf__timer__report(perf_timer *t, const char *fmt, ...)
  {
  	va_list arglist;
  
  	printf("%10.3f: ", ((double)t->sum) / 1000);
  
  	va_start(arglist, fmt);
  	vprintf(fmt, arglist);
  	va_end(arglist);
  
  	printf("\n");
  }
  
  #endif
  

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