From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx114.postini.com [74.125.245.114]) by kanga.kvack.org (Postfix) with SMTP id AEA256B0070 for ; Fri, 7 Sep 2012 20:16:53 -0400 (EDT) Received: by dadi14 with SMTP id i14so98156dad.14 for ; Fri, 07 Sep 2012 17:16:53 -0700 (PDT) Date: Sat, 8 Sep 2012 09:16:43 +0900 From: Minchan Kim Subject: Re: [PATCH 2/2] mm: support MIGRATE_DISCARD Message-ID: <20120908001643.GA2538@barrios> References: <1346832673-12512-1-git-send-email-minchan@kernel.org> <1346832673-12512-2-git-send-email-minchan@kernel.org> <20120905105611.GI11266@suse.de> <20120906053112.GA16231@bbox> <20120906082935.GN11266@suse.de> <20120906090325.GO11266@suse.de> <20120907022434.GG16231@bbox> <20120907082145.GV11266@suse.de> <20120907093203.GX11266@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20120907093203.GX11266@suse.de> Sender: owner-linux-mm@kvack.org List-ID: To: Mel Gorman Cc: Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Bartlomiej Zolnierkiewicz , Marek Szyprowski , Michal Nazarewicz , Rik van Riel On Fri, Sep 07, 2012 at 10:32:03AM +0100, Mel Gorman wrote: > On Fri, Sep 07, 2012 at 09:21:45AM +0100, Mel Gorman wrote: > > > > So other than the mix up of order parameters I think this should work. > > > > But I'd be wrong, isolated page accounting is not fixed up so it will > eventually hang on too_many_isolated. It turns out it is necessary Good spot. > to pass in zone after all. The following patch passed a high order > allocation stress test. To actually exercise the path I had compaction > call reclaim_clean_pages_from_list() in a separate debugging patch. > > Minchan, can you test your CMA allocation latency test with this patch? > If the figures are satisfactory could you add them to the changelog and > consider replacing the MIGRATE_DISCARD pair of patches with this version > please? Of course, I will do next week. Thanks! -- Kind Regards, Minchan Kim -- 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