From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1425256AbeE1PyO (ORCPT ); Mon, 28 May 2018 11:54:14 -0400 Received: from mx2.suse.de ([195.135.220.15]:43835 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1425224AbeE1PyF (ORCPT ); Mon, 28 May 2018 11:54:05 -0400 Date: Mon, 28 May 2018 14:03:18 +0200 From: Michal Hocko To: kernel test robot Cc: Tejun Heo , LKML , lkp@01.org Subject: Re: [lkp-robot] [mm, memcontrol] 309fe96bfc: vm-scalability.throughput +23.0% improvement Message-ID: <20180528120318.GB27180@dhcp22.suse.cz> References: <20180528114019.GF9904@yexl-desktop> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180528114019.GF9904@yexl-desktop> User-Agent: Mutt/1.9.5 (2018-04-13) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon 28-05-18 19:40:19, kernel test robot wrote: > > Greeting, > > FYI, we noticed a +23.0% improvement of vm-scalability.throughput due to commit: > > > commit: 309fe96bfc0ae387f53612927a8f0dc3eb056efd ("mm, memcontrol: implement memory.swap.events") > https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master This doesn't make any sense to me. The patch merely adds an accounting. It doesn't optimize anything. So I strongly suspect the result is just misleading or the test (environment) misconfigured. Not the first time I am seeing something like that I am afraid. -- Michal Hocko SUSE Labs From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============9216722471830525400==" MIME-Version: 1.0 From: Michal Hocko To: lkp@lists.01.org Subject: Re: [lkp-robot] [mm, memcontrol] 309fe96bfc: vm-scalability.throughput +23.0% improvement Date: Mon, 28 May 2018 14:03:18 +0200 Message-ID: <20180528120318.GB27180@dhcp22.suse.cz> In-Reply-To: <20180528114019.GF9904@yexl-desktop> List-Id: --===============9216722471830525400== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable On Mon 28-05-18 19:40:19, kernel test robot wrote: > = > Greeting, > = > FYI, we noticed a +23.0% improvement of vm-scalability.throughput due to = commit: > = > = > commit: 309fe96bfc0ae387f53612927a8f0dc3eb056efd ("mm, memcontrol: implem= ent memory.swap.events") > https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master This doesn't make any sense to me. The patch merely adds an accounting. It doesn't optimize anything. So I strongly suspect the result is just misleading or the test (environment) misconfigured. Not the first time I am seeing something like that I am afraid. -- = Michal Hocko SUSE Labs --===============9216722471830525400==--