lib/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2025-08-07 06:43:00 +03:00
Code Activity

Bump up the runtime for "short" benchmarks

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

1
benchtests/bench-string.h
View File

@@ -125,6 +125,7 @@ extern impl_t __start_impls[], __stop_impls[];
# define OPT_SEED 10002
# define INNER_LOOP_ITERS 8192
# define INNER_LOOP_ITERS_LARGE 131072
# define INNER_LOOP_ITERS_MEDIUM 1024
# define INNER_LOOP_ITERS_SMALL 32