Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755422Ab0HCHBE (ORCPT ); Tue, 3 Aug 2010 03:01:04 -0400 Received: from tuxonice.net ([74.207.252.127]:44591 "EHLO mail.tuxonice.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755298Ab0HCHBC (ORCPT ); Tue, 3 Aug 2010 03:01:02 -0400 X-Bogosity: Ham, spamicity=0.000000 Message-ID: <4C57BEA9.9020504@tuxonice.net> Date: Tue, 03 Aug 2010 17:00:57 +1000 From: Nigel Cunningham User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.11) Gecko/20100713 Thunderbird/3.0.6 MIME-Version: 1.0 To: Pavel Machek CC: "Rafael J. Wysocki" , Linux PM , LKML , TuxOnIce-devel Subject: Re: Nigel's current for-rafael queue References: <1275481160-31150-1-git-send-email-nigel@tuxonice.net> <20100803065543.GF3344@ucw.cz> In-Reply-To: <20100803065543.GF3344@ucw.cz> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1065 Lines: 28 Hi. On 03/08/10 16:55, Pavel Machek wrote: > On Wed 2010-06-02 22:18:59, Nigel Cunningham wrote: >> Hi all. >> >> Here is my current patch queue. >> >> Taken together, the patches implement the separation of low level >> block i/o into a separate file, switch from using swap_map_pages >> to extents stores prior to the 'header' page and implement fully >> asynchronous (rather than batched I/O). I have only run it under >> VMware so far, but would estimate a doubling in speed due to the >> async i/o. > > Do you have any numbers from real hw? Could similar speedup be > accomplished by just increasing the batch size? Yeah. I've been thinking I should really prepend a patch that lets you get the stats post-resume - unless you guys have some trick to enable you to read them that I haven't noticed yet :) Nigel -- 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/