From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail191.messagelabs.com (mail191.messagelabs.com [216.82.242.19]) by kanga.kvack.org (Postfix) with SMTP id 9B8356B0044 for ; Tue, 27 Oct 2009 17:00:10 -0400 (EDT) From: Frans Pop Subject: Re: [PATCH 2/2] page allocator: Direct reclaim should always obey watermarks Date: Tue, 27 Oct 2009 22:00:04 +0100 References: <1255689446-3858-1-git-send-email-mel@csn.ul.ie> <20091016223237.GE32397@csn.ul.ie> <200910170128.29086.elendil@planet.nl> In-Reply-To: <200910170128.29086.elendil@planet.nl> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200910272200.07614.elendil@planet.nl> Sender: owner-linux-mm@kvack.org To: Mel Gorman Cc: David Rientjes , Andrew Morton , stable , "Rafael J. Wysocki" , David Miller , reinette chatre , Kalle Valo , "John W. Linville" , Pekka Enberg , Bartlomiej Zolnierkiewicz , Karol Lewandowski , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, "linux-mm@kvack.org" List-ID: On Saturday 17 October 2009, Frans Pop wrote: > On Saturday 17 October 2009, Mel Gorman wrote: > > Frans, you reported that both patches in combination reduced the > > number of failures. Was it in fact just the kswapd change that made > > the difference? > > I will retest both patches (as I already mailed you privately > yesterday), but not today. The improvement with the combination was > real, but I'm not sure which patch is the reason. I think the second, > but I need to verify. > > I've done another 30 boots or so today, mainly in the "akpm" merge, and > I've found new patterns that will help me nail down the regression. But > ATM I can't see straight anymore, so it will have to wait until > tomorrow. Again sorry for the delay, but I needed to retest these with various kernels as the results were inconclusive. AFAICT neither of the two patches makes a significant difference for my test case. Not sure if my initial test was broken or that it was just a case where the timings worked out favorably. Cheers, FJP -- 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