Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757926Ab0FBLvi (ORCPT ); Wed, 2 Jun 2010 07:51:38 -0400 Received: from earthlight.etchedpixels.co.uk ([81.2.110.250]:44316 "EHLO www.etchedpixels.co.uk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752078Ab0FBLvg (ORCPT ); Wed, 2 Jun 2010 07:51:36 -0400 Date: Wed, 2 Jun 2010 12:58:11 +0100 From: Alan Cox To: Peter Zijlstra Cc: Thomas Gleixner , Arve =?ISO-8859-14?B?SGr4bm5l?= =?ISO-8859-14?B?duVn?= , "Rafael J. Wysocki" , Florian Mickler , Matthew Garrett , Alan Stern , Paul@smtp1.linux-foundation.org, LKML , felipe.balbi@nokia.com, Linux OMAP Mailing List , Linux PM Subject: Re: [linux-pm] [PATCH 0/8] Suspend block api (version 8) Message-ID: <20100602125811.4ae414e2@lxorguk.ukuu.org.uk> In-Reply-To: <1275469851.27810.30775.camel@twins> References: <201005302202.39511.rjw@sisk.pl> <201005312347.24251.rjw@sisk.pl> <1275469851.27810.30775.camel@twins> X-Mailer: Claws Mail 3.7.6 (GTK+ 2.18.9; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 961 Lines: 28 On Wed, 02 Jun 2010 11:10:51 +0200 Peter Zijlstra wrote: > On Wed, 2010-06-02 at 10:29 +0200, Thomas Gleixner wrote: > > > > If I understood you correctly then you can shutdown the CPU in idle > > completelty already, but that's not enough due to: > > > > 1) crappy applications keeping the cpu away from idle > > 2) timers firing > > > > Would solving those two issues be sufficient for you or am I missing > > something ? > > Aren't the container snapshot/resume people fighting the same set of > problems here? And virtualisation - its a big one for virtualisation because if you've got 1000 misbehaving guests generating 100 wakeups a second you've got a problem .... Alan -- 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/