From 44558701ff93118de40d5d5484e210149570f951 Mon Sep 17 00:00:00 2001 From: Will Newton Date: Mon, 2 Sep 2013 14:13:50 +0100 Subject: 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 * 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. --- benchtests/bench-string.h | 15 +++------------ 1 file changed, 3 insertions(+), 12 deletions(-) (limited to 'benchtests/bench-string.h') diff --git a/benchtests/bench-string.h b/benchtests/bench-string.h index 2fe8d9fae4..53e796a90d 100644 --- a/benchtests/bench-string.h +++ b/benchtests/bench-string.h @@ -52,7 +52,7 @@ extern impl_t __start_impls[], __stop_impls[]; # include # define GL(x) _##x # define GLRO(x) _##x -# include +# include "bench-timing.h" # define TEST_FUNCTION test_main () @@ -61,6 +61,8 @@ extern impl_t __start_impls[], __stop_impls[]; # define OPT_RANDOM 10001 # define OPT_SEED 10002 +# define INNER_LOOP_ITERS 64 + unsigned char *buf1, *buf2; int ret, do_srandom; unsigned int seed; @@ -158,16 +160,6 @@ static impl_t *impl_array; if (!notall || impl->test) # endif /* ! (defined TEST_IFUNC && defined TEST_NAME) */ -# define HP_TIMING_BEST(best_time, start, end) \ - do \ - { \ - hp_timing_t tmptime; \ - HP_TIMING_DIFF (tmptime, start + _dl_hp_timing_overhead, end); \ - if (best_time > tmptime) \ - best_time = tmptime; \ - } \ - while (0) - # ifndef BUF1PAGES # define BUF1PAGES 1 # endif @@ -198,7 +190,6 @@ test_init (void) error (EXIT_FAILURE, errno, "mmap failed"); if (mprotect (buf2 + page_size, page_size, PROT_NONE)) error (EXIT_FAILURE, errno, "mprotect failed"); - HP_TIMING_DIFF_INIT (); if (do_srandom) { printf ("Setting seed to 0x%x\n", seed); -- cgit 1.4.1