From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nick Piggin Subject: Re: Where is the performance bottleneck? Date: Thu, 01 Sep 2005 03:25:36 +1000 Message-ID: <4315E810.4030305@yahoo.com.au> References: <20050829202529.GA32214@midnight.suse.cz> <20050831071126.GA7502@midnight.ucw.cz> <20050831072644.GF4018@suse.de> <4315A179.8070102@yahoo.com.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org To: Holger Kiehl Cc: Jens Axboe , Vojtech Pavlik , linux-raid , linux-kernel List-Id: linux-raid.ids Holger Kiehl wrote: > meminfo.dump: > > MemTotal: 8124172 kB > MemFree: 23564 kB > Buffers: 7825944 kB > Cached: 19216 kB > SwapCached: 0 kB > Active: 25708 kB > Inactive: 7835548 kB > HighTotal: 0 kB > HighFree: 0 kB > LowTotal: 8124172 kB > LowFree: 23564 kB > SwapTotal: 15631160 kB > SwapFree: 15631160 kB > Dirty: 3145604 kB Hmm OK, dirty memory is pinned pretty much exactly on dirty_ratio so maybe I've just led you on a goose chase. You could echo 5 > /proc/sys/vm/dirty_background_ratio echo 10 > /proc/sys/vm/dirty_ratio To further reduce dirty memory in the system, however this is a long shot, so please continue your interaction with the other people in the thread first. Thanks, Nick -- SUSE Labs, Novell Inc. Send instant messages to your online friends http://au.messenger.yahoo.com