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(parent: de614e5) | patch
crypto: twofish - disable AVX2 implementation
authorJussi Kivilinna <jussi.kivilinna@iki.fi>
Sun, 2 Jun 2013 16:51:47 +0000 (19:51 +0300)
committerHerbert Xu <herbert@gondor.apana.org.au>
Wed, 5 Jun 2013 08:33:22 +0000 (16:33 +0800)
commit3ef91f21a66826cf1003bb7b3c51ac2de4c28182
tree70196d4c039d76131a86ca9e41d66ee1ad5d8262tree | snapshot
parentde614e561b9c633073caae8f86399aa8923ef85dcommit | diff
crypto: twofish - disable AVX2 implementation

It appears that the performance of 'vpgatherdd' is suboptimal for this kind of
workload (tested on Core i5-4570) and causes twofish_avx2 to be significantly
slower than twofish_avx. So disable the AVX2 implementation to avoid
performance regressions.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto/Kconfig diff | blob | history
Domain: System / Kernel;