From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753227Ab1CKSaL (ORCPT ); Fri, 11 Mar 2011 13:30:11 -0500 Received: from mx1.redhat.com ([209.132.183.28]:3035 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753092Ab1CKSaI (ORCPT ); Fri, 11 Mar 2011 13:30:08 -0500 Message-ID: <4D7A6A26.5000501@redhat.com> Date: Fri, 11 Mar 2011 19:29:58 +0100 From: Milan Broz User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.13) Gecko/20101213 Thunderbird/3.1.7 MIME-Version: 1.0 To: "Mario 'BitKoenig' Holbe" , Andi Kleen , dm-crypt@saout.de, linux-kernel@vger.kernel.org, Alasdair G Kergon Subject: Re: dm-crypt: Performance Regression 2.6.37 -> 2.6.38-rc8 References: <20110308164508.GA8729@darkside.kls.lan> <20110310165730.GC20504@alboin.amr.corp.intel.com> <20110310175411.GB25027@darkside.kls.lan> <20110311011842.GA5698@alboin.amr.corp.intel.com> <20110311180334.GA11382@darkside.kls.lan> In-Reply-To: <20110311180334.GA11382@darkside.kls.lan> X-Enigmail-Version: 1.1.2 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 03/11/2011 07:03 PM, Mario 'BitKoenig' Holbe wrote: >> You probably need to find some way >> to make pcrypt (parallel crypt layer) work for dmcrypt. That may >> actually give you more speedup too than your old hack because >> it can balance over more cores. dmcrypt is already using async crypto interface, it is ready for parallelization on this level. Perhaps the problem is that pcrypt is not yet implemented for needed algorithms? Milan