diff options
| author | Daniel Verkamp <dverkamp@chromium.org> | 2018-11-12 15:26:51 -0800 |
|---|---|---|
| committer | Shaohua Li <shli@fb.com> | 2018-12-20 08:53:23 -0800 |
| commit | 0437de4fa09fe59b57d12b785e4afb73b0f34c05 (patch) | |
| tree | 62790298d1b4b31fc33ac70a3bc224abfadeeeed /lib | |
| parent | 86919f9dd2dbb88bbbe4e381dc8e6b9e9a1b9eb5 (diff) | |
| download | linux-0-day-0437de4fa09fe59b57d12b785e4afb73b0f34c05.tar.gz linux-0-day-0437de4fa09fe59b57d12b785e4afb73b0f34c05.tar.xz | |
lib/raid6: sort algos in rough performance order
Sort the list of RAID6 algorithms in roughly decreasing order of
expected performance: newer instruction sets first (within each
architecture) and wider unrollings first.
This doesn't make any difference right now, since all functions are
benchmarked; a follow-up change will make use of this by optionally
choosing the first valid function rather than testing all of them.
The Itanium raid6_intx{16,32} entries are also moved down to be near the
other raid6_intx entries for clarity.
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Signed-off-by: Shaohua Li <shli@fb.com>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/raid6/algos.c | 76 |
1 files changed, 38 insertions, 38 deletions
diff --git a/lib/raid6/algos.c b/lib/raid6/algos.c index 5065b1e7e3275..a753ff56670fa 100644 --- a/lib/raid6/algos.c +++ b/lib/raid6/algos.c @@ -34,64 +34,64 @@ struct raid6_calls raid6_call; EXPORT_SYMBOL_GPL(raid6_call); const struct raid6_calls * const raid6_algos[] = { -#if defined(__ia64__) - &raid6_intx16, - &raid6_intx32, -#endif #if defined(__i386__) && !defined(__arch_um__) - &raid6_mmxx1, - &raid6_mmxx2, - &raid6_sse1x1, - &raid6_sse1x2, - &raid6_sse2x1, - &raid6_sse2x2, -#ifdef CONFIG_AS_AVX2 - &raid6_avx2x1, - &raid6_avx2x2, -#endif #ifdef CONFIG_AS_AVX512 - &raid6_avx512x1, &raid6_avx512x2, + &raid6_avx512x1, #endif -#endif -#if defined(__x86_64__) && !defined(__arch_um__) - &raid6_sse2x1, - &raid6_sse2x2, - &raid6_sse2x4, #ifdef CONFIG_AS_AVX2 - &raid6_avx2x1, &raid6_avx2x2, - &raid6_avx2x4, + &raid6_avx2x1, #endif + &raid6_sse2x2, + &raid6_sse2x1, + &raid6_sse1x2, + &raid6_sse1x1, + &raid6_mmxx2, + &raid6_mmxx1, +#endif +#if defined(__x86_64__) && !defined(__arch_um__) #ifdef CONFIG_AS_AVX512 - &raid6_avx512x1, - &raid6_avx512x2, &raid6_avx512x4, + &raid6_avx512x2, + &raid6_avx512x1, +#endif +#ifdef CONFIG_AS_AVX2 + &raid6_avx2x4, + &raid6_avx2x2, + &raid6_avx2x1, #endif + &raid6_sse2x4, + &raid6_sse2x2, + &raid6_sse2x1, #endif #ifdef CONFIG_ALTIVEC - &raid6_altivec1, - &raid6_altivec2, - &raid6_altivec4, - &raid6_altivec8, - &raid6_vpermxor1, - &raid6_vpermxor2, - &raid6_vpermxor4, &raid6_vpermxor8, + &raid6_vpermxor4, + &raid6_vpermxor2, + &raid6_vpermxor1, + &raid6_altivec8, + &raid6_altivec4, + &raid6_altivec2, + &raid6_altivec1, #endif #if defined(CONFIG_S390) &raid6_s390vx8, #endif - &raid6_intx1, - &raid6_intx2, - &raid6_intx4, - &raid6_intx8, #ifdef CONFIG_KERNEL_MODE_NEON - &raid6_neonx1, - &raid6_neonx2, - &raid6_neonx4, &raid6_neonx8, + &raid6_neonx4, + &raid6_neonx2, + &raid6_neonx1, +#endif +#if defined(__ia64__) + &raid6_intx32, + &raid6_intx16, #endif + &raid6_intx8, + &raid6_intx4, + &raid6_intx2, + &raid6_intx1, NULL }; |