Dirk Müller 38640c4809 lib/raid6: skip benchmark of non-chosen xor_syndrome functions ...

In commit fe5cbc6e06c7 ("md/raid6 algorithms: delta syndrome functions")
a xor_syndrome() benchmarking was added also to the raid6_choose_gen()
function. However, the results of that benchmarking were intentionally
discarded and did not influence the choice. It picked the
xor_syndrome() variant related to the best performing gen_syndrome().

Reduce runtime of raid6_choose_gen() without modifying its outcome by
only benchmarking the xor_syndrome() of the best gen_syndrome() variant.

For a HZ=250 x86_64 system with avx2 and without avx512 this removes
5 out of 6 xor() benchmarks, saving 340ms of raid6 initialization time.

Signed-off-by: Dirk Müller <dmueller@suse.de>
Signed-off-by: Song Liu <song@kernel.org>

2022-01-06 08:37:03 -08:00

..

test

x86: update AS_* macros to binutils >=2.23, supporting ADX and AVX2

2020-04-09 00:12:48 +09:00

.gitignore

.gitignore: add SPDX License Identifier

2020-03-25 11:50:48 +01:00

algos.c

lib/raid6: skip benchmark of non-chosen xor_syndrome functions

2022-01-06 08:37:03 -08:00

altivec.uc

lib/raid6: Build proper raid6test files on powerpc

2018-03-20 16:47:52 +11:00

avx2.c

x86: update AS_* macros to binutils >=2.23, supporting ADX and AVX2

2020-04-09 00:12:48 +09:00

avx512.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 48

2019-05-24 17:27:13 +02:00

int.uc

md/raid6 algorithms: xor_syndrome() for generic int

2015-04-22 08:00:42 +10:00

Makefile

isystem: delete global -isystem compile option

2021-09-22 09:26:24 +09:00

mktables.c

raid6/test: fix a compilation warning

2020-01-13 11:44:09 -08:00

mmx.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 48

2019-05-24 17:27:13 +02:00

neon.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

2019-06-19 17:09:55 +02:00

neon.uc

lib/raid6: use vdupq_n_u8 to avoid endianness warnings

2019-02-28 17:44:51 +00:00

recov_avx2.c

x86: update AS_* macros to binutils >=2.23, supporting ADX and AVX2

2020-04-09 00:12:48 +09:00

recov_avx512.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441

2019-06-05 17:37:17 +02:00

recov_neon_inner.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441

2019-06-05 17:37:17 +02:00

recov_neon.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441

2019-06-05 17:37:17 +02:00

recov_s390xc.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

recov_ssse3.c

x86: remove always-defined CONFIG_AS_SSSE3

2020-04-09 00:01:59 +09:00

recov.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 48

2019-05-24 17:27:13 +02:00

s390vx.uc

RAID/s390: remove invalid 'r' inline asm operand modifier

2019-06-11 09:48:25 +02:00

sse1.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 48

2019-05-24 17:27:13 +02:00

sse2.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 48

2019-05-24 17:27:13 +02:00

unroll.awk

lib: raid6: fix awk build warnings

2019-12-09 18:55:03 +01:00

vpermxor.uc

lib/raid6/altivec: Add vpermxor implementation for raid6 Q syndrome

2018-03-20 16:47:25 +11:00

x86.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 48

2019-05-24 17:27:13 +02:00