From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Rafael J. Wysocki" Subject: Re: [linux-pm] [RFC] Asynchronous suspend/resume - test results Date: Thu, 24 Dec 2009 23:10:42 +0100 Message-ID: <200912242310.42615.rjw@sisk.pl> References: <200912210140.19713.rjw@sisk.pl> <200912232146.29339.rjw@sisk.pl> <4B32D2D6.3030707@crca.org.au> Mime-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-2" Content-Transfer-Encoding: 7bit Return-path: Received: from ogre.sisk.pl ([217.79.144.158]:55280 "EHLO ogre.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755449AbZLXWK2 (ORCPT ); Thu, 24 Dec 2009 17:10:28 -0500 In-Reply-To: <4B32D2D6.3030707@crca.org.au> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Nigel Cunningham Cc: pm list , ACPI Devel Maling List , Dmitry Torokhov , Linus Torvalds , LKML , Jiri Slaby On Thursday 24 December 2009, Nigel Cunningham wrote: > Hi. Hi, > I built the async branch of your tree and tested it, also running > 2.6.33-rc1 + TuxOnIce for comparison. Dmesg for both are attached. Is > there anything I can/should be doing for you on top of this? No, thanks a lot. > I'll try Dmitry's patch on top of this a little later - other things to do first. No need for that, the patchset contains an equivalent of the Dmitry's patch. > I noticed that you were doing standard deviations in your stats - how > many runs were you basing them on? I usually run 10 iterations of suspend-resume for each configuration. The raw data are at http://www.sisk.pl/kernel/data/async-suspend-updated.pdf if you're interested. > Not sure that I can be bothered to do too many - too much else to do! Sure, thanks a lot anyway. Your data confirn that there's a measurable gain from suspending and resuming devices asynchronously. Have a merry Christmas and happy new year, Rafael