From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S268501AbUJMHD5 (ORCPT ); Wed, 13 Oct 2004 03:03:57 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S269157AbUJMHD5 (ORCPT ); Wed, 13 Oct 2004 03:03:57 -0400 Received: from fw.osdl.org ([65.172.181.6]:27777 "EHLO mail.osdl.org") by vger.kernel.org with ESMTP id S268501AbUJMHD4 (ORCPT ); Wed, 13 Oct 2004 03:03:56 -0400 Date: Wed, 13 Oct 2004 00:02:06 -0700 From: Andrew Morton To: Nathan Scott Cc: piggin@cyberone.com.au, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-xfs@oss.sgi.com Subject: Re: Page cache write performance issue Message-Id: <20041013000206.680132ad.akpm@osdl.org> In-Reply-To: <20041013063955.GA2079@frodo> References: <20041013054452.GB1618@frodo> <20041012231945.2aff9a00.akpm@osdl.org> <20041013063955.GA2079@frodo> X-Mailer: Sylpheed version 0.9.7 (GTK+ 1.2.10; i386-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Nathan Scott wrote: > > Hi Andrew, > > On Tue, Oct 12, 2004 at 11:19:45PM -0700, Andrew Morton wrote: > > Nathan Scott wrote: > > > > > > So, any ideas what happened to 2.6.9? > > > > Does reverting the below fix it up? > > Reverting that one improves things slightly - I move up from > ~4MB/sec to ~17MB/sec; thats just under a third of the 2.6.8 > numbers I was seeing though, unfortunately. > Well something else if fishy: how can you possibly achieve only 4MB/sec? Using floppy disks or something? Does the same happen on ext2? It's exactly a 500MB write on a 1000MB machine, yes? From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 13 Oct 2004 00:02:06 -0700 From: Andrew Morton Subject: Re: Page cache write performance issue Message-Id: <20041013000206.680132ad.akpm@osdl.org> In-Reply-To: <20041013063955.GA2079@frodo> References: <20041013054452.GB1618@frodo> <20041012231945.2aff9a00.akpm@osdl.org> <20041013063955.GA2079@frodo> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Nathan Scott Cc: piggin@cyberone.com.au, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-xfs@oss.sgi.com List-ID: Nathan Scott wrote: > > Hi Andrew, > > On Tue, Oct 12, 2004 at 11:19:45PM -0700, Andrew Morton wrote: > > Nathan Scott wrote: > > > > > > So, any ideas what happened to 2.6.9? > > > > Does reverting the below fix it up? > > Reverting that one improves things slightly - I move up from > ~4MB/sec to ~17MB/sec; thats just under a third of the 2.6.8 > numbers I was seeing though, unfortunately. > Well something else if fishy: how can you possibly achieve only 4MB/sec? Using floppy disks or something? Does the same happen on ext2? It's exactly a 500MB write on a 1000MB machine, yes? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: aart@kvack.org