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- add compile option to change innermost loop into a function call

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to measure function call overhead.
- always call dump fn so I can do regression test
This commit is contained in:
Bryce Denney 2002-04-16 16:08:18 +00:00
parent 8d53729ed3
commit b6c94bebdb
1 changed files with 19 additions and 3 deletions
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22
bochs-performance/testcases/blur.c
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@ -1,6 +1,6 @@
/* /*
* *
* $Id: blur.c,v 1.2 2002-04-16 14:30:47 bdenney Exp $ * $Id: blur.c,v 1.3 2002-04-16 16:08:18 bdenney Exp $
* *
*/ */
@ -17,6 +17,13 @@ int array2[MAX][MAX];
#define DEFAULT_TIMES 1000 #define DEFAULT_TIMES 1000
#ifdef BLUR_USE_FUNCTION_CALL
void blur_func (int *sum, int *data)
{
*sum += *data;
}
#endif
void blur() void blur()
{ {
int sum; int sum;
@ -26,8 +33,13 @@ void blur()
{ {
sum = 0; sum = 0;
for (x2=x-BLUR_WINDOW_HALF; x2<=x+BLUR_WINDOW_HALF; x2++) for (x2=x-BLUR_WINDOW_HALF; x2<=x+BLUR_WINDOW_HALF; x2++)
for (y2=y-BLUR_WINDOW_HALF; y2<=y+BLUR_WINDOW_HALF; y2++) for (y2=y-BLUR_WINDOW_HALF; y2<=y+BLUR_WINDOW_HALF; y2++) {
#ifdef BLUR_USE_FUNCTION_CALL
blur_func (&sum, &array[x2][y2]);
#else
sum += array[x2][y2]; sum += array[x2][y2];
#endif
}
array2[x][y] = sum; array2[x][y] = sum;
} }
} }
@ -71,6 +83,7 @@ int main (int argc, char *argv[])
{ {
int i; int i;
int times = 0; int times = 0;
FILE *out;
if (argc>1) { if (argc>1) {
assert (sscanf (argv[1], "%d", &times) == 1); assert (sscanf (argv[1], "%d", &times) == 1);
} else { } else {
@ -84,6 +97,9 @@ int main (int argc, char *argv[])
stop_timer(); stop_timer();
report_time (stdout, times); report_time (stdout, times);
//fprintf (stderr, "-----------------------------------\n"); //fprintf (stderr, "-----------------------------------\n");
//dump_array (stderr); out = fopen ("blur.out", "w");
assert (out != NULL);
dump_array (out);
fclose (out);
return 0; return 0;
} }