Return-Path: Received: from milhouse.imppc.org ([213.151.98.37]:29201 "EHLO milhouse.imppc.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751209Ab1CPQw7 (ORCPT ); Wed, 16 Mar 2011 12:52:59 -0400 Message-ID: <4D80EAE9.6000603@imppc.org> Date: Wed, 16 Mar 2011 17:52:57 +0100 From: Judith Flo Gaya To: Jim Rees CC: Chuck Lever , "linux-nfs@vger.kernel.org" Subject: Re: problem with nfs latency during high IO References: <526EE4AA-ABD2-4452-9C3A-C000BD3CFC60@oracle.com> <4D7FA11F.5020604@imppc.org> <21A84B17-E061-4441-9181-100AC8E473E2@oracle.com> <4D7FDB14.6090908@imppc.org> <9CC4990D-6969-4788-8B52-BA5AF2743DE3@oracle.com> <4D7FE0E8.5050701@imppc.org> <16BF52F0-4D1A-4B68-ADEE-DC70255A139C@oracle.com> <4D80A2DE.2030507@imppc.org> <20110316151827.GA12187@merit.edu> <20110316153129.GB12187@merit.edu> In-Reply-To: <20110316153129.GB12187@merit.edu> Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Sender: linux-nfs-owner@vger.kernel.org List-ID: MIME-Version: 1.0 THanks a lot to both for your suggestions and help. I already filed a bug [1] to bugzilla. j [1] https://bugzilla.redhat.com/show_bug.cgi?id=688232 On 03/16/2011 04:31 PM, Jim Rees wrote: > Jim Rees wrote: > > I think 5 is the minimum for dirty_ratio, although this doesn't seem to be > documented anywhere. If you want to set it lower, you have to use > dirty_bytes instead of dirty_ratio. > > Never mind, I just looked at the code and the 5% limit seems to have been > removed later. Last time I looked at this code was 3 years ago. -- Judith Flo Gaya Systems Administrator IMPPC e-mail: jflo@imppc.org Tel (+34) 93 554-3079 Fax (+34) 93 465-1472 Institut de Medicina Predictiva i Personalitzada del C?ncer Crta Can Ruti, Cam? de les Escoles s/n 08916 Badalona, Barcelona, Spain http://www.imppc.org