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| author | Wilco Dijkstra <wilco.dijkstra@arm.com> | 2023-03-03 12:54:45 +0000 |
|---|---|---|
| committer | Wilco Dijkstra <wilco.dijkstra@arm.com> | 2023-03-08 18:36:25 +0000 |
| commit | dcfcb8e3928f68706e2bfa7527de363a899d2a69 (patch) | |
| tree | e6c0676c34c7be018b41162a2a3c1ed0bfd6897d /benchtests/bench-memchr.c | |
| parent | 73a284f618aa81d2bd1f93b299ac5dbf95f396b1 (diff) | |
| download | glibc-dcfcb8e3928f68706e2bfa7527de363a899d2a69.tar.gz glibc-dcfcb8e3928f68706e2bfa7527de363a899d2a69.tar.xz glibc-dcfcb8e3928f68706e2bfa7527de363a899d2a69.zip | |
Benchtests: Remove simple_mem(r)chr
Instead of benchmarking slow byte oriented loops, include the optimized generic memchr/memrchr implementation. Adjust iteration count to reduce benchmark time. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'benchtests/bench-memchr.c')
| -rw-r--r-- | benchtests/bench-memchr.c | 40 |
1 files changed, 22 insertions, 18 deletions
diff --git a/benchtests/bench-memchr.c b/benchtests/bench-memchr.c index b99995e293..90bd3879e3 100644 --- a/benchtests/bench-memchr.c +++ b/benchtests/bench-memchr.c @@ -16,6 +16,8 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ +#include "json-lib.h" + #ifndef WIDE # define SMALL_CHAR 127 #else @@ -31,35 +33,25 @@ # endif /* WIDE */ # include "bench-string.h" -# ifndef WIDE -# define SIMPLE_MEMCHR simple_memchr -# else -# define SIMPLE_MEMCHR simple_wmemchr -# endif /* WIDE */ +typedef void *(*proto_t) (const void *, int, size_t); -typedef CHAR *(*proto_t) (const CHAR *, int, size_t); -CHAR *SIMPLE_MEMCHR (const CHAR *, int, size_t); +void * +generic_memchr (const void *, int, size_t); -IMPL (SIMPLE_MEMCHR, 0) IMPL (MEMCHR, 1) -CHAR * -SIMPLE_MEMCHR (const CHAR *s, int c, size_t n) -{ - while (n--) - if (*s++ == (CHAR) c) - return (CHAR *) s - 1; - return NULL; -} +# ifndef WIDE +IMPL (generic_memchr, 0) +# endif + #endif /* !USE_AS_MEMRCHR */ -#include "json-lib.h" static void do_one_test (json_ctx_t *json_ctx, impl_t *impl, const CHAR *s, int c, size_t n) { - size_t i, iters = INNER_LOOP_ITERS_LARGE; + size_t i, iters = INNER_LOOP_ITERS; timing_t start, stop, cur; TIMING_NOW (start); @@ -250,3 +242,15 @@ test_main (void) } #include <support/test-driver.c> + +#ifndef WIDE +# ifndef USE_AS_MEMRCHR +# undef MEMCHR +# define MEMCHR generic_memchr +# include <string/memchr.c> +# else +# undef MEMRCHR +# define MEMRCHR generic_memrchr +# include <string/memrchr.c> +# endif +#endif |