Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760492Ab0HENsb (ORCPT ); Thu, 5 Aug 2010 09:48:31 -0400 Received: from cavan.codon.org.uk ([93.93.128.6]:52382 "EHLO cavan.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759795Ab0HENs3 (ORCPT ); Thu, 5 Aug 2010 09:48:29 -0400 Date: Thu, 5 Aug 2010 14:47:41 +0100 From: Matthew Garrett To: david@lang.hm Cc: "Paul E. McKenney" , Arve =?iso-8859-1?B?SGr4bm5lduVn?= , "Rafael J. Wysocki" , Arjan van de Ven , linux-pm@lists.linux-foundation.org, linux-kernel@vger.kernel.org, pavel@ucw.cz, florian@mickler.org, stern@rowland.harvard.edu, swetland@google.com, peterz@infradead.org, tglx@linutronix.de, alan@lxorguk.ukuu.org.uk Subject: Re: Attempted summary of suspend-blockers LKML thread Message-ID: <20100805134741.GC20565@srcf.ucam.org> References: <20100801054816.GI2470@linux.vnet.ibm.com> <20100804185520.GA2417@srcf.ucam.org> <201008042251.08266.rjw@sisk.pl> <20100804205654.GA4986@srcf.ucam.org> <20100804231003.GL24163@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.18 (2008-05-17) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: mjg59@cavan.codon.org.uk X-SA-Exim-Scanned: No (on cavan.codon.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 900 Lines: 20 On Wed, Aug 04, 2010 at 04:19:20PM -0700, david@lang.hm wrote: > only consider the activity of a subset of processes when deciding if we > should suspend or not. If the decision is to suspend, freeze everything. > > you (and many other people) are confusing what I've proposed (use cgroups > to indicate what processes to care about and what ones to not care about > when deciding to suspend/go to idle) with the prior cgroup proposal (use > cgroups to freeze a subset of tasks while leaving others runnable) The decision on whether or not to go to sleep isn't the difficult bit of this problem space. -- Matthew Garrett | mjg59@srcf.ucam.org -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/