From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f178.google.com (mail-pd0-f178.google.com [209.85.192.178]) by kanga.kvack.org (Postfix) with ESMTP id 8ACD36B0032 for ; Wed, 10 Dec 2014 01:32:37 -0500 (EST) Received: by mail-pd0-f178.google.com with SMTP id r10so2145289pdi.37 for ; Tue, 09 Dec 2014 22:32:37 -0800 (PST) Received: from lgeamrelo04.lge.com (lgeamrelo04.lge.com. [156.147.1.127]) by mx.google.com with ESMTP id v6si5215252pdr.119.2014.12.09.22.32.34 for ; Tue, 09 Dec 2014 22:32:36 -0800 (PST) Date: Wed, 10 Dec 2014 15:36:28 +0900 From: Joonsoo Kim Subject: Re: [PATCH 0/4] enhance compaction success rate Message-ID: <20141210063628.GB13371@js1304-P5Q-DELUXE> References: <1418022980-4584-1-git-send-email-iamjoonsoo.kim@lge.com> <54856C72.4040705@suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <54856C72.4040705@suse.cz> Sender: owner-linux-mm@kvack.org List-ID: To: Vlastimil Babka Cc: Andrew Morton , Mel Gorman , David Rientjes , Rik van Riel , linux-mm@kvack.org, linux-kernel@vger.kernel.org On Mon, Dec 08, 2014 at 10:16:34AM +0100, Vlastimil Babka wrote: > On 12/08/2014 08:16 AM, Joonsoo Kim wrote: > >This patchset aims at increase of compaction success rate. Changes are > >related to compaction finish condition and freepage isolation condition. > > > > From these changes, I did stress highalloc test in mmtests with nonmovable > >order 7 allocation configuration, and success rate (%) at phase 1 are, > > > >Base Patch-1 Patch-3 Patch-4 > >55.00 57.00 62.67 64.00 > > > >And, compaction success rate (%) on same test are, > > > >Base Patch-1 Patch-3 Patch-4 > >18.47 28.94 35.13 41.50 > > Did you test Patch-2 separately? Any difference to Patch 1? I didn't test it separately. I guess that there is no remarkable difference because it just slightly changes page stealing logic, not compaction logic. Compaction success rate would not be affected by patch 2, but, I will check it next time. Thanks. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org