From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tomasz Chmielewski Subject: Re: very poor ext3 write performance on big filesystems? Date: Tue, 19 Feb 2008 15:54:12 +0100 Message-ID: <47BAED94.3040103@wpkg.org> References: <47B980AC.2080806@wpkg.org> <20080218141640.GC12568@mit.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit To: Theodore Tso , Andi Kleen , Tomasz Chmielewski , LKML , LKML Return-path: Received: from mail.syneticon.net ([213.239.212.131]:53631 "EHLO mail2.syneticon.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752029AbYBSOyW (ORCPT ); Tue, 19 Feb 2008 09:54:22 -0500 In-Reply-To: <20080218141640.GC12568@mit.edu> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: Theodore Tso schrieb: (...) > The following ld_preload can help in some cases. Mutt has this hack > encoded in for maildir directories, which helps. It doesn't work very reliable for me. For some reason, it hangs for me sometimes (doesn't remove any files, rm -rf just stalls), or segfaults. As most of the ideas here in this thread assume (re)creating a new filesystem from scratch - would perhaps playing with /proc/sys/vm/dirty_ratio and /proc/sys/vm/dirty_background_ratio help a bit? -- Tomasz Chmielewski http://wpkg.org