From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mel Gorman Subject: Re: [PATCH 0/3] Shrinkers and proportional reclaim Date: Thu, 22 May 2014 17:30:51 +0100 Message-ID: <20140522163051.GJ23991@suse.de> References: <1400749779-24879-1-git-send-email-mgorman@suse.de> <20140522161416.GD25013@yliu-dev.sh.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Cc: Andrew Morton , Johannes Weiner , Hugh Dickins , Tim Chen , Dave Chinner , Bob Liu , Jan Kara , Rik van Riel , Linux Kernel , Linux-MM , Linux-FSDevel To: Yuanhan Liu Return-path: Content-Disposition: inline In-Reply-To: <20140522161416.GD25013@yliu-dev.sh.intel.com> Sender: owner-linux-mm@kvack.org List-Id: linux-fsdevel.vger.kernel.org On Fri, May 23, 2014 at 12:14:16AM +0800, Yuanhan Liu wrote: > On Thu, May 22, 2014 at 10:09:36AM +0100, Mel Gorman wrote: > > This series is aimed at regressions noticed during reclaim activity. The > > first two patches are shrinker patches that were posted ages ago but never > > merged for reasons that are unclear to me. I'm posting them again to see if > > there was a reason they were dropped or if they just got lost. Dave? Time? > > The last patch adjusts proportional reclaim. Yuanhan Liu, can you retest > > the vm scalability test cases on a larger machine? Hugh, does this work > > for you on the memcg test cases? > > Sure, and here is the result. I applied these 3 patches on v3.15-rc6, > and head commit is 60c10afd. e82e0561 is the old commit that introduced > the regression. The testserver has 512G memory and 120 CPU. > > It's a simple result; if you need more data, I can gather them and send > it to you tomorrow: > > e82e0561 v3.15-rc6 60c10afd > ---------------------------------------- > 18560785 12232122 38868453 > -34% +109 > > As you can see, the performance is back, and it is way much better ;) > Thanks a lot for that and the quick response. It is much appreciated. -- Mel Gorman SUSE Labs -- 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 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751336AbaEVQa7 (ORCPT ); Thu, 22 May 2014 12:30:59 -0400 Received: from cantor2.suse.de ([195.135.220.15]:44579 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750747AbaEVQa5 (ORCPT ); Thu, 22 May 2014 12:30:57 -0400 Date: Thu, 22 May 2014 17:30:51 +0100 From: Mel Gorman To: Yuanhan Liu Cc: Andrew Morton , Johannes Weiner , Hugh Dickins , Tim Chen , Dave Chinner , Bob Liu , Jan Kara , Rik van Riel , Linux Kernel , Linux-MM , Linux-FSDevel Subject: Re: [PATCH 0/3] Shrinkers and proportional reclaim Message-ID: <20140522163051.GJ23991@suse.de> References: <1400749779-24879-1-git-send-email-mgorman@suse.de> <20140522161416.GD25013@yliu-dev.sh.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline In-Reply-To: <20140522161416.GD25013@yliu-dev.sh.intel.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, May 23, 2014 at 12:14:16AM +0800, Yuanhan Liu wrote: > On Thu, May 22, 2014 at 10:09:36AM +0100, Mel Gorman wrote: > > This series is aimed at regressions noticed during reclaim activity. The > > first two patches are shrinker patches that were posted ages ago but never > > merged for reasons that are unclear to me. I'm posting them again to see if > > there was a reason they were dropped or if they just got lost. Dave? Time? > > The last patch adjusts proportional reclaim. Yuanhan Liu, can you retest > > the vm scalability test cases on a larger machine? Hugh, does this work > > for you on the memcg test cases? > > Sure, and here is the result. I applied these 3 patches on v3.15-rc6, > and head commit is 60c10afd. e82e0561 is the old commit that introduced > the regression. The testserver has 512G memory and 120 CPU. > > It's a simple result; if you need more data, I can gather them and send > it to you tomorrow: > > e82e0561 v3.15-rc6 60c10afd > ---------------------------------------- > 18560785 12232122 38868453 > -34% +109 > > As you can see, the performance is back, and it is way much better ;) > Thanks a lot for that and the quick response. It is much appreciated. -- Mel Gorman SUSE Labs