From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932094Ab2EKQiU (ORCPT ); Fri, 11 May 2012 12:38:20 -0400 Received: from mail-yx0-f174.google.com ([209.85.213.174]:48918 "EHLO mail-yx0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753019Ab2EKQiS convert rfc822-to-8bit (ORCPT ); Fri, 11 May 2012 12:38:18 -0400 MIME-Version: 1.0 In-Reply-To: <1336753616.14207.258.camel@gandalf.stny.rr.com> References: <1336753616.14207.258.camel@gandalf.stny.rr.com> Date: Fri, 11 May 2012 18:38:18 +0200 Message-ID: Subject: Re: Plumbers: Tweaking scheduler policy micro-conf RFP From: Vincent Guittot To: Steven Rostedt , Juri Lelli Cc: paulmck@linux.vnet.ibm.com, smuckle@quicinc.com, khilman@ti.com, Robin.Randhawa@arm.com, suresh.b.siddha@intel.com, thebigcorporation@gmail.com, venki@google.com, peterz@infradead.org, panto@antoniou-consulting.com, mingo@elte.hu, paul.brett@intel.com, pdeschrijver@nvidia.com, pjt@google.com, efault@gmx.de, fweisbec@gmail.com, geoff@infradead.org, tglx@linutronix.de, amit.kucheria@linaro.org, linux-kernel@vger.kernel.org, linaro-sched-sig@lists.linaro.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11 May 2012 18:26, Steven Rostedt wrote: > Not really specific to HW, but Juri Lelli has been working on a deadline > scheduler. Perhaps his work may be of interest. Yes for sure, if Juri is agree to present his work Vincent > > -- Steve > > > On Fri, 2012-05-11 at 18:16 +0200, Vincent Guittot wrote: >> This is a request-for-participation in a micro conference during the >> next Linux Plumber Conference (29-31st Aug). >> It'll require critical mass measured in talk submissions in the >> general area of scheduler and task management. >> >> If you're working on improving the the scheduler policy used to place >> a task on a CPU to suit your HW, we are inviting your participation >> and request you to submit a proposal to present your problem (e.g. >> power-efficiency) or a solution to solve said problem that should be >> considered by upstream developers. >> >> We've interacted with the people in To: list before in our quest to >> better understand how the scheduler works and we're hoping you all >> will consider participating in the micro-conf to help guide what kinds >> of ideas are likely to make it upstream. >> >> If you have ongoing work or ideas in the the following areas we're >> especially interested in hearing from you: >>  1. Consolidation of statistics with other frameworks (cpuidle, >> cpufreq, scheduler all seem to track their own statistics related to >> load, idleness, etc. Can this be converted to a library that is >> useable by all?) >>  2. Replacement for task consolidation on fewer CPUs aka. replacement >> for sched_mc >>  3. Improvement in the placement of activity beside tasks: timer, >> workqueue, IO, interruption >>  4. Instrumentation to calculate the compute capacity available on >> active cores and its utilization by a given workload >> >> We are thinking of organising the micro-conf as a Q & A session where >> a participant would state a problem and then there would be >> brainstorming on if this is indeed a problem and is so, how to achieve >> a solution. In other words, 20-30 minute slots of each Q & A >> >> 1. Problem statements with specific examples on why changing the >> default scheduler policy is desired >> 2. For each problem, if it is deemed not possible to accomplish easily >> today, brainstorming on what an acceptable solution would look like >> (frameworks to build upon, interfaces to use, related work in the >> area, key people to involve, etc.) >> >> Please email us if you will be attending the conference and interested >> in talking about this problem space. >> >> Regards, >> Amit & Vincent > >