From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bill Davidsen Subject: Re: Was: [RFC PATCH 2.6.23.1] md: add dm-raid1 read balancing Date: Thu, 08 Nov 2007 12:24:34 -0500 Message-ID: <47334652.6040109@tmr.com> References: <1194084522.1353.10.camel@localhost> <87fxziju0z.fsf@informatik.uni-tuebingen.de> <1194520008.17369.19.camel@localhost> <87prykaeh6.fsf@informatik.uni-tuebingen.de> <20071108120625.7e0572b1@bree.surriel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20071108120625.7e0572b1@bree.surriel.com> Sender: linux-raid-owner@vger.kernel.org To: Rik van Riel Cc: Goswin von Brederlow , konstantin.sharlaimov@gmail.com, linux-raid , "; Ingo Molnar" , "; Neil Brown" List-Id: linux-raid.ids Rik van Riel wrote: > On Thu, 08 Nov 2007 17:28:37 +0100 > Goswin von Brederlow wrote: > > >> Maybe you need more parameter: >> > > Generally a bad idea, unless you can come up with sane defaults (which > do not need tuning 99% of the time) or you can derive these parameters > automatically from the RAID configuration (unlikely with RAID 1?). > > Before turning Konstantin's nice and simple code into something complex, > it would be good to see benchmark results show that the complexity is > actually needed. > > I was about to post a question about the benefit of all this logic, I'll trim before posting... -- bill davidsen CTO TMR Associates, Inc Doing interesting things with small computers since 1979