diff options
| author | Romain Dolbeau <[email protected]> | 2016-11-02 20:40:23 +0100 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2016-11-02 12:40:23 -0700 |
| commit | 7f547f85fe783a6ac69ce250b361436b9c4888a6 (patch) | |
| tree | a197e8503cbf9f9edebfac791f6afed2c2d66382 /man/man5/zfs-module-parameters.5 | |
| parent | 6d4210052be6c63032d693aa487f84955b0dae44 (diff) | |
Add parity generation/rebuild using AVX-512 for x86-64
avx512f should work on all AVX512 hardware, since it only uses
Foundation instructions.
avx512bw should be faster on hardware supporting the AVW512BW
extension. We can use full-width pshufb (instead of relying on the 256
bits AVX2 pshufb). As a side-effect, the code is also unrolled more.
Reviewed-by: Richard Laager <[email protected]>
Reviewed-by: Gvozden Neskovic <[email protected]>
Reviewed-by: Jinshan Xiong <[email protected]>
Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by: Romain Dolbeau <[email protected]>
Closes #5219
Diffstat (limited to 'man/man5/zfs-module-parameters.5')
| -rw-r--r-- | man/man5/zfs-module-parameters.5 | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/man/man5/zfs-module-parameters.5 b/man/man5/zfs-module-parameters.5 index 8e37a97e2..dc6601581 100644 --- a/man/man5/zfs-module-parameters.5 +++ b/man/man5/zfs-module-parameters.5 @@ -1775,6 +1775,8 @@ Possible options are: sse2 - implementation using SSE2 instruction set (64bit x86 only) ssse3 - implementation using SSSE3 instruction set (64bit x86 only) avx2 - implementation using AVX2 instruction set (64bit x86 only) + avx512f - implementation using AVX512F instruction set (64bit x86 only) + avx512bw - implementation using AVX512F & AVX512BW instruction sets (64bit x86 only) aarch64_neon - implementation using NEON (Aarch64/64 bit ARMv8 only) aarch64_neonx2 - implementation using NEON with more unrolling (Aarch64/64 bit ARMv8 only) .sp |