test/benchmarks/clib/memset.c

   1 /*
   2     Copyright © 2003, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #include <sys/time.h>
   7 #include <stdio.h>
   8 #include <string.h>
   9
  10 #include <exec/types.h>
  11 #include <exec/memory.h>
  12 #include <proto/exec.h>
  13
  14 #define BUFFERSIZE (10*1024*1024) // 10 MB
  15 #define FUNCTION   memset
  16
  17 int main()
  18 {
  19     struct timeval  tv_start,
  20                     tv_end;
  21     APTR            buffer = NULL;
  22     UBYTE           patterns[] = { 0x15, 0x25, 0x65, 0x42 };
  23     int             count   = 300;
  24     double          elapsed = 0.0;
  25     int             i;
  26
  27     buffer = AllocVec(BUFFERSIZE, MEMF_ANY);
  28
  29     gettimeofday(&tv_start, NULL);
  30
  31     for(i = 0; i < count; i++)
  32     {
  33         FUNCTION(buffer, 0, BUFFERSIZE);
  34     }
  35
  36     gettimeofday(&tv_end, NULL);
  37
  38     elapsed = ((double)(((tv_end.tv_sec * 1000000) + tv_end.tv_usec)
  39             - ((tv_start.tv_sec * 1000000) + tv_start.tv_usec)))/1000000.;
  40
  41     printf
  42     (
  43         "Clearing memory\n"
  44         "---------------\n"
  45         "Elapsed time:     %f seconds\n"
  46         "Number of bytes:  %f\n"
  47         "Bytes per second: %f\n",
  48         elapsed, (double) count * BUFFERSIZE,
  49         (double) count * BUFFERSIZE / elapsed
  50     );
  51
  52     gettimeofday(&tv_start, NULL);
  53
  54     for(i = 0; i < count; i++)
  55     {
  56         FUNCTION(buffer, patterns[i % sizeof(patterns)], BUFFERSIZE);
  57     }
  58
  59     gettimeofday(&tv_end, NULL);
  60
  61     elapsed = ((double)(((tv_end.tv_sec * 1000000) + tv_end.tv_usec)
  62             - ((tv_start.tv_sec * 1000000) + tv_start.tv_usec)))/1000000.;
  63
  64     printf
  65     (
  66         "Filling memory with pattern\n"
  67         "---------------------------\n"
  68         "Elapsed time:     %f seconds\n"
  69         "Number of bytes:  %f\n"
  70         "Bytes per second: %f\n",
  71         elapsed, (double) count * BUFFERSIZE,
  72         (double) count * BUFFERSIZE / elapsed
  73     );
  74     FreeVec(buffer);
  75
  76     return 0;
  77 }