From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932255AbcCNCXb (ORCPT ); Sun, 13 Mar 2016 22:23:31 -0400 Received: from mail-wm0-f50.google.com ([74.125.82.50]:34023 "EHLO mail-wm0-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751023AbcCNCX1 (ORCPT ); Sun, 13 Mar 2016 22:23:27 -0400 Message-ID: <1457922201.3680.44.camel@gmail.com> Subject: Re: [PATCHSET RFC cgroup/for-4.6] cgroup, sched: implement resource group and PRIO_RGRP From: Mike Galbraith To: Tejun Heo Cc: torvalds@linux-foundation.org, akpm@linux-foundation.org, a.p.zijlstra@chello.nl, mingo@redhat.com, lizefan@huawei.com, hannes@cmpxchg.org, pjt@google.com, linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, linux-api@vger.kernel.org, kernel-team@fb.com Date: Mon, 14 Mar 2016 03:23:21 +0100 In-Reply-To: <20160313150012.GB13405@htj.duckdns.org> References: <1457710888-31182-1-git-send-email-tj@kernel.org> <1457764019.10402.72.camel@gmail.com> <20160313150012.GB13405@htj.duckdns.org> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.16.5 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, 2016-03-13 at 11:00 -0400, Tejun Heo wrote: > There can be use cases where building cpu resource hierarchy which is > completely alien to how the rest of the system is organized is useful. Well, from my POV it's the "process" oriented thingy that's the alien, and one that wants to meet an alien juice resistant shovel ;-) Another example is cpusets. I use it, and I know beyond doubt that my employer's customers use it for RT/HPC purposes out in the wild, and that very much includes placing critical _threads_ in exclusive sets. -Mike From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mike Galbraith Subject: Re: [PATCHSET RFC cgroup/for-4.6] cgroup, sched: implement resource group and PRIO_RGRP Date: Mon, 14 Mar 2016 03:23:21 +0100 Message-ID: <1457922201.3680.44.camel@gmail.com> References: <1457710888-31182-1-git-send-email-tj@kernel.org> <1457764019.10402.72.camel@gmail.com> <20160313150012.GB13405@htj.duckdns.org> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20160313150012.GB13405-piEFEHQLUPpN0TnZuCh8vA@public.gmane.org> Sender: cgroups-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Tejun Heo Cc: torvalds-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org, akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org, a.p.zijlstra-/NLkJaSkS4VmR6Xm/wNWPw@public.gmane.org, mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org, hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org, pjt-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, kernel-team-b10kYP2dOMg@public.gmane.org List-Id: linux-api@vger.kernel.org On Sun, 2016-03-13 at 11:00 -0400, Tejun Heo wrote: > There can be use cases where building cpu resource hierarchy which is > completely alien to how the rest of the system is organized is useful. Well, from my POV it's the "process" oriented thingy that's the alien, and one that wants to meet an alien juice resistant shovel ;-) Another example is cpusets. I use it, and I know beyond doubt that my employer's customers use it for RT/HPC purposes out in the wild, and that very much includes placing critical _threads_ in exclusive sets. -Mike