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Bump up the runtime for "short" benchmarks

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Some benchmarks with a very short runtime show significantly
different results across runs on Aarch64 - up to tens of percents.
Increasing the runtime to 100ms+ makes the deviation under 5%.

Tested on Aarch64 and x86-64.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>

	* benchtests/bench-memccpy.c: Replace INNER_LOOP_ITERS
	with INNER_LOOP_ITERS_LARGE.
	* benchtests/bench-memchr.c: Likewise.
	* benchtests/bench-rawmemchr.c: Likewise.
	* benchtests/bench-strcat.c: Likewise.
	* benchtests/bench-strchr.c: Likewise.
	* benchtests/bench-string.h: Likewise.
	* benchtests/bench-strlen.c: Likewise.
	* benchtests/bench-strncpy.c: Likewise.
	* benchtests/bench-strnlen.c: Likewise.
This commit is contained in:
Anton Youdkevitch
2019-06-28 13:38:07 +01:00
committed by Wilco Dijkstra
parent 507f55c05f
commit afe23eb0f1
10 changed files with 22 additions and 8 deletions
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2
benchtests/bench-memccpy.c
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@@ -41,7 +41,7 @@ static void
do_one_test (impl_t *impl, void *dst, const void *src, int c, size_t len,
size_t n)
{
size_t i, iters = INNER_LOOP_ITERS;
size_t i, iters = INNER_LOOP_ITERS_LARGE;
timing_t start, stop, cur;
TIMING_NOW (start);