From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marc-Christian Petersen Subject: Re: RAID-0 read perf. decrease after 2.4.20 Date: Mon, 8 Dec 2003 14:11:04 +0100 Sender: linux-raid-owner@vger.kernel.org Message-ID: <200312081411.04057.m.c.p@wolk-project.de> References: Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Content-Disposition: inline To: Marcelo Tosatti , Mikael Johansson Cc: linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org, riel@redhat.com, knobi@knobisoft.de, Jens Axboe , mason@suse.com List-Id: linux-raid.ids On Monday 08 December 2003 13:47, Marcelo Tosatti wrote: Hi Marcelo, > 2.4.20-aa included rmap and some VM modifications most notably > "drop_behind()" logic which I believe should be the reason for the huge > read speedups. Can you please try it? Against 2.4.23. -aa tree never had -rmap :) ciao, Marc