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Reallocate buffers for every run in strlen 

Try and avoid influencing performance of neighbouring functions.
This commit is contained in:
Siddhesh Poyarekar 2018-08-16 14:09:56 +05:30
parent 953a5a4a59
commit 34f86d6168
2 changed files with 13 additions and 7 deletions
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3
ChangeLog
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@ -1,5 +1,8 @@
2018-08-16 Siddhesh Poyarekar <siddhesh@sourceware.org>
* benchtests/bench-strlen.c (do_test): Allocate buffers before
every strlen call.
* benchtests/bench-strlen.c: Print performance numbers in json.
2018-08-16 Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com>

17
benchtests/bench-strlen.c
View File

@ -96,12 +96,6 @@ do_test (json_ctx_t *json_ctx, size_t align, size_t len)
if (align + sizeof(CHAR) * len >= page_size)
return;
CHAR *buf = (CHAR *) (buf1);
for (i = 0; i < len; ++i)
buf[align + i] = 1 + 11111 * i % MAX_CHAR;
buf[align + len] = 0;
json_element_object_begin (json_ctx);
json_attr_uint (json_ctx, "length", len);
json_attr_uint (json_ctx, "alignment", align);
@ -109,7 +103,16 @@ do_test (json_ctx_t *json_ctx, size_t align, size_t len)
FOR_EACH_IMPL (impl, 0)
do_one_test (json_ctx, impl, (CHAR *) (buf + align), len);
{
CHAR *buf = (CHAR *) (buf1);
for (i = 0; i < len; ++i)
buf[align + i] = 1 + 11111 * i % MAX_CHAR;
buf[align + len] = 0;
do_one_test (json_ctx, impl, (CHAR *) (buf + align), len);
alloc_bufs ();
}
json_array_end (json_ctx);
json_element_object_end (json_ctx);