From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751830AbdJBT4G (ORCPT ); Mon, 2 Oct 2017 15:56:06 -0400 Received: from mx2.suse.de ([195.135.220.15]:47571 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751291AbdJBT4E (ORCPT ); Mon, 2 Oct 2017 15:56:04 -0400 Date: Mon, 2 Oct 2017 21:56:01 +0200 From: Michal Hocko To: Shakeel Butt Cc: Tim Hockin , Roman Gushchin , Johannes Weiner , Tejun Heo , kernel-team@fb.com, David Rientjes , Linux MM , Vladimir Davydov , Tetsuo Handa , Andrew Morton , Cgroups , linux-doc@vger.kernel.org, "linux-kernel@vger.kernel.org" Subject: Re: [v8 0/4] cgroup-aware OOM killer Message-ID: <20171002195601.3jeocmmzyf2jl3dw@dhcp22.suse.cz> References: <20170927074319.o3k26kja43rfqmvb@dhcp22.suse.cz> <20170927162300.GA5623@castle.DHCP.thefacebook.com> <20171002122434.llbaarb6yw3o3mx3@dhcp22.suse.cz> <20171002192814.sad75tqklp3nmr4m@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: NeoMutt/20170609 (1.8.3) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon 02-10-17 12:45:18, Shakeel Butt wrote: > > I am sorry to cut the rest of your proposal because it simply goes over > > the scope of the proposed solution while the usecase you are mentioning > > is still possible. If we want to compare intermediate nodes (which seems > > to be the case) then we can always provide a knob to opt-in - be it your > > oom_gang or others. > > In the Roman's proposed solution we can already force the comparison > of intermediate nodes using 'oom_group', I am just requesting to > separate the killall semantics from it. oom_group _is_ about killall semantic. And comparing killable entities is just a natural thing to do. So I am not sure what you mean -- Michal Hocko SUSE Labs From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f199.google.com (mail-pf0-f199.google.com [209.85.192.199]) by kanga.kvack.org (Postfix) with ESMTP id 7D37A6B0033 for ; Mon, 2 Oct 2017 15:56:06 -0400 (EDT) Received: by mail-pf0-f199.google.com with SMTP id r83so13972542pfj.5 for ; Mon, 02 Oct 2017 12:56:06 -0700 (PDT) Received: from mx1.suse.de (mx2.suse.de. [195.135.220.15]) by mx.google.com with ESMTPS id r9si4358286pgp.132.2017.10.02.12.56.05 for (version=TLS1 cipher=AES128-SHA bits=128/128); Mon, 02 Oct 2017 12:56:05 -0700 (PDT) Date: Mon, 2 Oct 2017 21:56:01 +0200 From: Michal Hocko Subject: Re: [v8 0/4] cgroup-aware OOM killer Message-ID: <20171002195601.3jeocmmzyf2jl3dw@dhcp22.suse.cz> References: <20170927074319.o3k26kja43rfqmvb@dhcp22.suse.cz> <20170927162300.GA5623@castle.DHCP.thefacebook.com> <20171002122434.llbaarb6yw3o3mx3@dhcp22.suse.cz> <20171002192814.sad75tqklp3nmr4m@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: Shakeel Butt Cc: Tim Hockin , Roman Gushchin , Johannes Weiner , Tejun Heo , kernel-team@fb.com, David Rientjes , Linux MM , Vladimir Davydov , Tetsuo Handa , Andrew Morton , Cgroups , linux-doc@vger.kernel.org, "linux-kernel@vger.kernel.org" On Mon 02-10-17 12:45:18, Shakeel Butt wrote: > > I am sorry to cut the rest of your proposal because it simply goes over > > the scope of the proposed solution while the usecase you are mentioning > > is still possible. If we want to compare intermediate nodes (which seems > > to be the case) then we can always provide a knob to opt-in - be it your > > oom_gang or others. > > In the Roman's proposed solution we can already force the comparison > of intermediate nodes using 'oom_group', I am just requesting to > separate the killall semantics from it. oom_group _is_ about killall semantic. And comparing killable entities is just a natural thing to do. So I am not sure what you mean -- Michal Hocko 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