From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751958AbdJYRCv (ORCPT ); Wed, 25 Oct 2017 13:02:51 -0400 Received: from rcdn-iport-2.cisco.com ([173.37.86.73]:17526 "EHLO rcdn-iport-2.cisco.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751705AbdJYRCu (ORCPT ); Wed, 25 Oct 2017 13:02:50 -0400 X-Greylist: delayed 554 seconds by postgrey-1.27 at vger.kernel.org; Wed, 25 Oct 2017 13:02:49 EDT X-IronPort-AV: E=Sophos;i="5.43,432,1503360000"; d="scan'208";a="315223311" Subject: Re: Detecting page cache trashing state To: "Ruslan Ruslichenko -X (rruslich - GLOBALLOGIC INC at Cisco)" , Johannes Weiner , Taras Kondratiuk Cc: Michal Hocko , linux-mm@kvack.org, xe-linux-external@cisco.com, linux-kernel@vger.kernel.org References: <150543458765.3781.10192373650821598320@takondra-t460s> <20170915143619.2ifgex2jxck2xt5u@dhcp22.suse.cz> <150549651001.4512.15084374619358055097@takondra-t460s> <20170918163434.GA11236@cmpxchg.org> From: Daniel Walker Message-ID: <8be3f051-0858-c014-96a7-a1903f063980@cisco.com> Date: Wed, 25 Oct 2017 09:53:35 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US X-Auto-Response-Suppress: DR, OOF, AutoReply Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 09/28/2017 08:49 AM, Ruslan Ruslichenko -X (rruslich - GLOBALLOGIC INC at Cisco) wrote: > Hi Johannes, > > Hopefully I was able to rebase the patch on top v4.9.26 (latest > supported version by us right now) > and test a bit. > The overall idea definitely looks promising, although I have one > question on usage. > Will it be able to account the time which processes spend on handling > major page faults > (including fs and iowait time) of refaulting page? Johannes, did you get a chance to review the changes from Ruslan ? Daniel