From mboxrd@z Thu Jan 1 00:00:00 1970 From: SoulBlazer Subject: Software Raid Cache Date: Fri, 21 Feb 2003 15:50:23 -0500 Sender: linux-raid-owner@vger.kernel.org Message-ID: <3E56910F.6050509@lamp-post.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: To: linux-raid@vger.kernel.org List-Id: linux-raid.ids I was wondering if it would be possible to set aside a large (larger) amount of system memory to act as cache for software raid. I have a few xeon systems here with 4-8gb of memory in them and based on watching the performance of some mylex raid cards jump up when we did a memory upgrade from 64mb -> 128mb I was wondering if the same would occur in linux. If this is even something doable (tweakable) Im wondering what the perf gain from allocating say 2 or 4gb just to raid cache would be. Comments ?