Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756189Ab1BJNxU (ORCPT ); Thu, 10 Feb 2011 08:53:20 -0500 Received: from mail-px0-f174.google.com ([209.85.212.174]:46961 "EHLO mail-px0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752333Ab1BJNxT (ORCPT ); Thu, 10 Feb 2011 08:53:19 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=subject:from:to:cc:in-reply-to:references:content-type:date :message-id:mime-version:x-mailer:content-transfer-encoding; b=Xl11yH15VjZ6IfXWlR06zd/4uSGv9wCLKVMQDDnzyVsPZDLH0XMgsCtlO9UbvhcOZo s3pd5/bqzkqU54VXb+S3XMNak+JH3Rn0M6CyAzdMGN3TlzSmFCVrT1c5B18HG3CR+CuQ zwt+QLhVvZadcRTg5dIuOVQvz+RJzd0nja3ss= Subject: Re: [RFC PATCH] mm: handle simple case in free_pcppages_bulk() From: Namhyung Kim To: Minchan Kim Cc: Andrew Morton , Mel Gorman , linux-mm@kvack.org, linux-kernel@vger.kernel.org In-Reply-To: References: <1297338408-3590-1-git-send-email-namhyung@gmail.com> <1297343929.1449.3.camel@leonhard> Content-Type: text/plain; charset="UTF-8" Date: Thu, 10 Feb 2011 22:53:13 +0900 Message-ID: <1297345993.1449.10.camel@leonhard> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 784 Lines: 26 2011-02-10 (목), 22:38 +0900, Minchan Kim: > > Hmm.. How about adding unlikely() then? Doesn't it help much here? > > Yes. It would help but I am not sure how much it is. > AFAIR, when Mel submit the patch, he tried to prove the effectiveness > with some experiment and profiler. > I think if you want it really, we might need some number. > I am not sure it's worth. > OK. Thanks for the comments. :) And it would be really great if you (or somebody) told me how could I make the numbers on my desktop. -- Regards, Namhyung 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/