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authorWill Newton <will.newton@linaro.org>2013-09-02 14:13:50 +0100
committerWill Newton <will.newton@linaro.org>2013-09-04 15:40:12 +0100
commit44558701ff93118de40d5d5484e210149570f951 (patch)
tree852abdc5179f2da33311bb53fbd226d88c086b56 /benchtests/bench-memmove.c
parentcae16d66756dfb76b6b4c804e5eb1218d587c60f (diff)
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benchtests: Switch string benchmarks to use bench-timing.h.
Switch the string benchmarks to using bench-timing.h instead of hp-timing.h directly. This allows the string benchmarks to be run usefully on architectures such as ARM that do not have support for hp-timing.h. In order to do this the tests have been changed from timing each individual call and picking the lowest execution time recorded to timing a number of calls and taking the mean execution time. ChangeLog: 2013-09-04 Will Newton <will.newton@linaro.org> * benchtests/bench-timing.h (TIMING_PRINT_MEAN): New macro. * benchtests/bench-string.h: Include bench-timing.h instead of including hp-timing.h directly. (INNER_LOOP_ITERS): New define. (HP_TIMING_BEST): Delete macro. (test_init): Remove call to HP_TIMING_DIFF_INIT. * benchtests/bench-memccpy.c: Use bench-timing.h macros instead of hp-timing.h macros. * benchtests/bench-memchr.c: Likewise. * benchtests/bench-memcmp.c: Likewise. * benchtests/bench-memcpy.c: Likewise. * benchtests/bench-memmem.c: Likewise. * benchtests/bench-memmove.c: Likewise. * benchtests/bench-memset.c: Likewise. * benchtests/bench-rawmemchr.c: Likewise. * benchtests/bench-strcasecmp.c: Likewise. * benchtests/bench-strcasestr.c: Likewise. * benchtests/bench-strcat.c: Likewise. * benchtests/bench-strchr.c: Likewise. * benchtests/bench-strcmp.c: Likewise. * benchtests/bench-strcpy.c: Likewise. * benchtests/bench-strcpy_chk.c: Likewise. * benchtests/bench-strlen.c: Likewise. * benchtests/bench-strncasecmp.c: Likewise. * benchtests/bench-strncat.c: Likewise. * benchtests/bench-strncmp.c: Likewise. * benchtests/bench-strncpy.c: Likewise. * benchtests/bench-strnlen.c: Likewise. * benchtests/bench-strpbrk.c: Likewise. * benchtests/bench-strrchr.c: Likewise. * benchtests/bench-strspn.c: Likewise. * benchtests/bench-strstr.c: Likewise.
Diffstat (limited to 'benchtests/bench-memmove.c')
-rw-r--r--benchtests/bench-memmove.c34
1 files changed, 14 insertions, 20 deletions
diff --git a/benchtests/bench-memmove.c b/benchtests/bench-memmove.c
index 8925606..332d6af 100644
--- a/benchtests/bench-memmove.c
+++ b/benchtests/bench-memmove.c
@@ -67,6 +67,9 @@ static void
do_one_test (impl_t *impl, char *dst, char *src, const char *orig_src,
size_t len)
{
+ size_t i, iters = INNER_LOOP_ITERS;
+ timing_t start, stop, cur;
+
memcpy (src, orig_src, len);
#ifdef TEST_BCOPY
CALL (impl, src, dst, len);
@@ -91,27 +94,20 @@ do_one_test (impl_t *impl, char *dst, char *src, const char *orig_src,
return;
}
- if (HP_TIMING_AVAIL)
+ TIMING_NOW (start);
+ for (i = 0; i < iters; ++i)
{
- hp_timing_t start __attribute ((unused));
- hp_timing_t stop __attribute ((unused));
- hp_timing_t best_time = ~ (hp_timing_t) 0;
- size_t i;
-
- for (i = 0; i < 32; ++i)
- {
- HP_TIMING_NOW (start);
#ifdef TEST_BCOPY
- CALL (impl, src, dst, len);
+ CALL (impl, src, dst, len);
#else
- CALL (impl, dst, src, len);
+ CALL (impl, dst, src, len);
#endif
- HP_TIMING_NOW (stop);
- HP_TIMING_BEST (best_time, start, stop);
- }
-
- printf ("\t%zd", (size_t) best_time);
}
+ TIMING_NOW (stop);
+
+ TIMING_DIFF (cur, start, stop);
+
+ TIMING_PRINT_MEAN ((double) cur, (double) iters);
}
static void
@@ -134,14 +130,12 @@ do_test (size_t align1, size_t align2, size_t len)
for (i = 0, j = 1; i < len; i++, j += 23)
s1[i] = j;
- if (HP_TIMING_AVAIL)
- printf ("Length %4zd, alignment %2zd/%2zd:", len, align1, align2);
+ printf ("Length %4zd, alignment %2zd/%2zd:", len, align1, align2);
FOR_EACH_IMPL (impl, 0)
do_one_test (impl, s2, (char *) (buf2 + align1), s1, len);
- if (HP_TIMING_AVAIL)
- putchar ('\n');
+ putchar ('\n');
}
int