Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752940Ab0KDDNg (ORCPT ); Wed, 3 Nov 2010 23:13:36 -0400 Received: from mail-qw0-f46.google.com ([209.85.216.46]:64509 "EHLO mail-qw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751488Ab0KDDNe (ORCPT ); Wed, 3 Nov 2010 23:13:34 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:cc:subject:in-reply-to:references:user-agent:date :message-id:mime-version:content-type; b=U9iE3mGCYs5rAzxgjZJ02p+5qJNLPVd4qGY7Mx4opatACiN2lQDHfYC7SfDLqN2BiS ui9kWA8U3dMx67I0pYUh3jg+J5kjFSNnYeIP6IG38tUO8ltfJtdpKf3Bc6Bgbwf7QaYj zvQ2o9qzIABEGYleZ/RQXv3Ucyg9iGvJtLQFg= From: Ben Gamari To: David Rientjes Cc: KAMEZAWA Hiroyuki , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Jesper Juhl , Wu Fengguang Subject: Re: [PATCH] Add Kconfig option for default swappiness In-Reply-To: References: <1288668052-32036-1-git-send-email-bgamari.foss@gmail.com> <87oca7evbo.fsf@gmail.com> User-Agent: Notmuch/0.3.1-158-g04cd99c (http://notmuchmail.org) Emacs/23.1.1 (x86_64-pc-linux-gnu) Date: Wed, 03 Nov 2010 23:13:31 -0400 Message-ID: <878w19bx2c.fsf@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1293 Lines: 33 On Tue, 2 Nov 2010 12:39:52 -0700 (PDT), David Rientjes wrote: > On Tue, 2 Nov 2010, Ben Gamari wrote: > > Packaging concerns, as I mentioned before, > > That you snipped from the changelog? > Guilty as charged. Sorry about that, time has been in short supply recently. > You could say the same thing for any sysctl, it's not indicative of why > this particular change is needed in the kernel. > This is certainly true; a distribution could in principle want to tweak the default values of any of the sysctl knobs. If we wanted to tweak anything else in addition to swappiness that I wouldn't have even bothered to submit the patch since I'll be the first to admit that the precedent set by further growing the Kconfig phase space is not a positive one. That being said, swappiness is one of the more significant knobs in the vm and certainly one of the more likely to be tuned by a distribution. > Let's not have the "in short" answer, what's the "long" answer? See my recent response to Wu Fengguang. Cheers, - Ben -- 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/