test/benchmarks/clib/benchmark.h

   1 /*
   2     Copyright © 2008, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #include <boost/preprocessor/repetition/repeat.hpp>
   7 #include <sys/time.h>
   8 #include <stdlib.h>
   9 #include <stdio.h>
  10
  11 #define TIMER(name) \
  12     struct timeval name ## _start; \
  13     struct timeval name ## _stop
  14
  15 #define START(name) gettimeofday(& name ## _start, NULL);
  16
  17 #define STOP(name) gettimeofday(& name ## _stop, NULL);
  18
  19 #define ELAPSED(name) ((double)(((name ## _stop.tv_sec * 1000000) + name ## _stop.tv_usec) - ((name ## _start.tv_sec * 1000000) + name ## _start.tv_usec))/1000000.0)
  20
  21 #define BENCHMARK_UNIVERSAL(name, count, bufsize) \
  22     TIMER(name); \
  23     START(name); \
  24     long name ## _i; \
  25     for(name ## _i = 0; name ## _i < count/100; name ## _i++) { \
  26         BOOST_PP_REPEAT(100, BENCHMARK,name ## _i); \
  27     } \
  28     STOP(name);
  29
  30 #define BENCHMARK_OPERATION(name, count) \
  31     BENCHMARK_UNIVERSAL(name, count, 1); \
  32     printf(#name " %.2lf operations/s\n", 1.0 * count / ELAPSED(name));
  33
  34
  35 #define BENCHMARK_BUFFER(name, count, bufsize) \
  36     BENCHMARK_UNIVERSAL(name, count, bufsize) \
  37     printf(#name " %.2lf bytes/s\n", 1.0 * bufsize * count / ELAPSED(name));