Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758186Ab1ECAyA (ORCPT ); Mon, 2 May 2011 20:54:00 -0400 Received: from mail-qw0-f46.google.com ([209.85.216.46]:45032 "EHLO mail-qw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754601Ab1ECAx7 convert rfc822-to-8bit (ORCPT ); Mon, 2 May 2011 20:53:59 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=ZrpLindKgEANRcFRS3sxS2zm3dGbjRIebqbY4yPcNNwkHmRh4SADznU6MoKWTTjJji hcws/aP6FQlBehGck4+cW4XKoWtjERBqQi4mwQOdaA09c9EVJD4cqi29aiWUsXLK1CKI N2WIfHMnPgUGvk6HIrP5SPqIfCGbUrqCKIBF4= MIME-Version: 1.0 In-Reply-To: <20110502191535.2D55.A69D9226@jp.fujitsu.com> References: <20110501163542.GA3204@barrios-desktop> <20110501163737.GB3204@barrios-desktop> <20110502191535.2D55.A69D9226@jp.fujitsu.com> Date: Tue, 3 May 2011 09:53:58 +0900 Message-ID: Subject: Re: [RFC][PATCH] mm: cut down __GFP_NORETRY page allocation failures From: Minchan Kim To: KOSAKI Motohiro Cc: Wu Fengguang , Andrew Morton , Mel Gorman , Dave Young , linux-mm , Linux Kernel Mailing List , KAMEZAWA Hiroyuki , Christoph Lameter , Dave Chinner , David Rientjes Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1252 Lines: 32 On Mon, May 2, 2011 at 7:14 PM, KOSAKI Motohiro wrote: >> On Mon, May 02, 2011 at 01:35:42AM +0900, Minchan Kim wrote: >> >> > Do you see my old patch? The patch want't incomplet but it's not bad for showing an idea. >>                                      ^^^^^^^^^^^^^^^^ >>                               typo : wasn't complete > > I think your idea is eligible. Wu's approach may increase throughput but Yes. it doesn't change many subtle things and make much fair but the Wu's concern is order-0 pages with __GFP_NORETRY. By his experiment, my patch doesn't help much his concern. The problem I have is I don't have any infrastructure for reproducing his experiment. :( > may decrease latency. So, do you have a plan to finish the work? I want it but the day would be after finishing inorder-putback series. :) Maybe you have a environment(8core system). If you want it, go ahead. :) Thanks, KOSAKI. -- Kind regards, Minchan Kim -- 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/