From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <45A6D118.5030508@yahoo.com.au> Date: Fri, 12 Jan 2007 11:06:48 +1100 From: Nick Piggin MIME-Version: 1.0 Subject: Re: [REGRESSION] 2.6.19/2.6.20-rc3 buffered write slowdown References: <20070110223731.GC44411608@melbourne.sgi.com> <20070110230855.GF44411608@melbourne.sgi.com> <45A57333.6060904@yahoo.com.au> <20070111003158.GT33919298@melbourne.sgi.com> <45A58DFA.8050304@yahoo.com.au> <20070111012404.GW33919298@melbourne.sgi.com> <45A602F0.1090405@yahoo.com.au> In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Christoph Lameter Cc: David Chinner , linux-kernel@vger.kernel.org, linux-mm@kvack.org List-ID: Christoph Lameter wrote: > On Thu, 11 Jan 2007, Nick Piggin wrote: > > >>You're not turning on zone_reclaim, by any chance, are you? > > > It is not a NUMA system so zone reclaim is not available. Ah yes... Can't you force it on if you have a NUMA complied kernel? > zone reclaim was > already in 2.6.16. Well it was a long shot, but that is something that has had a few changes recently and is something that could interact badly with the global pdflush. -- SUSE Labs, Novell Inc. Send instant messages to your online friends http://au.messenger.yahoo.com -- 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: email@kvack.org