From: Herbert Xu Subject: Re: [PATCH 2/2] crypto: blowfish - disable AVX2 implementation Date: Wed, 5 Jun 2013 16:34:25 +0800 Message-ID: <20130605083425.GA12202@gondor.apana.org.au> References: <20130602165147.25743.88831.stgit@localhost6.localdomain6> <20130602165152.25743.90142.stgit@localhost6.localdomain6> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-crypto@vger.kernel.org, "David S. Miller" To: Jussi Kivilinna Return-path: Received: from ringil.hengli.com.au ([178.18.16.133]:47536 "EHLO fornost.hengli.com.au" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752988Ab3FEIe3 (ORCPT ); Wed, 5 Jun 2013 04:34:29 -0400 Content-Disposition: inline In-Reply-To: <20130602165152.25743.90142.stgit@localhost6.localdomain6> Sender: linux-crypto-owner@vger.kernel.org List-ID: On Sun, Jun 02, 2013 at 07:51:52PM +0300, Jussi Kivilinna wrote: > It appears that the performance of 'vpgatherdd' is suboptimal for this kind of > workload (tested on Core i5-4570) and causes blowfish-avx2 to be significantly > slower than blowfish-amd64. So disable the AVX2 implementation to avoid > performance regressions. > > Signed-off-by: Jussi Kivilinna Both patches applied to crypto. I presume you're working on a more permanent solution on this? Thanks, -- Email: Herbert Xu Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt