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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-memmem.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-memmem.c')
-rw-r--r--benchtests/bench-memmem.c36
1 files changed, 14 insertions, 22 deletions
diff --git a/benchtests/bench-memmem.c b/benchtests/bench-memmem.c
index ca758a8..b8f8a8b 100644
--- a/benchtests/bench-memmem.c
+++ b/benchtests/bench-memmem.c
@@ -60,23 +60,19 @@ static void
do_one_test (impl_t *impl, const void *haystack, size_t haystack_len,
const void *needle, size_t needle_len, const void *expected)
{
- if (HP_TIMING_AVAIL)
+ size_t i, iters = INNER_LOOP_ITERS;
+ timing_t start, stop, cur;
+
+ 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;
+ CALL (impl, haystack, haystack_len, needle, needle_len);
+ }
+ TIMING_NOW (stop);
- for (i = 0; i < 32; ++i)
- {
- HP_TIMING_NOW (start);
- CALL (impl, haystack, haystack_len, needle, needle_len);
- HP_TIMING_NOW (stop);
- HP_TIMING_BEST (best_time, start, stop);
- }
+ TIMING_DIFF (cur, start, stop);
- printf ("\t%zd", (size_t) best_time);
- }
+ TIMING_PRINT_MEAN ((double) cur, (double) iters);
}
static void
@@ -87,16 +83,14 @@ do_test (const char *str, size_t len, size_t idx)
memcpy (tmpbuf, buf1 + idx, len);
memcpy (buf1 + idx, str, len);
- if (HP_TIMING_AVAIL)
- printf ("String %s, offset %zd:", str, idx);
+ printf ("String %s, offset %zd:", str, idx);
FOR_EACH_IMPL (impl, 0)
do_one_test (impl, buf1, BUF1PAGES * page_size, str, len, buf1 + idx);
memcpy (buf1 + idx, tmpbuf, len);
- if (HP_TIMING_AVAIL)
- putchar ('\n');
+ putchar ('\n');
}
static void
@@ -120,15 +114,13 @@ do_random_tests (void)
buf1[idx + off] = ch;
}
- if (HP_TIMING_AVAIL)
- printf ("String %.*s, offset %zd:", (int) len, buf1 + idx, idx);
+ printf ("String %.*s, offset %zd:", (int) len, buf1 + idx, idx);
FOR_EACH_IMPL (impl, 0)
do_one_test (impl, buf1, BUF1PAGES * page_size, buf1 + idx, len,
buf1 + idx);
- if (HP_TIMING_AVAIL)
- putchar ('\n');
+ putchar ('\n');
memcpy (buf1 + idx, tmpbuf, len);
}