From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264376AbTDXD1t (ORCPT ); Wed, 23 Apr 2003 23:27:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264377AbTDXD1t (ORCPT ); Wed, 23 Apr 2003 23:27:49 -0400 Received: from to-telus.redhat.com ([207.219.125.105]:13300 "EHLO touchme.toronto.redhat.com") by vger.kernel.org with ESMTP id S264376AbTDXD1r (ORCPT ); Wed, 23 Apr 2003 23:27:47 -0400 Date: Wed, 23 Apr 2003 23:39:54 -0400 From: Benjamin LaHaise To: "Martin J. Bligh" Cc: Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: 2.5.68-mm2 Message-ID: <20030423233954.D9036@redhat.com> References: <20030423012046.0535e4fd.akpm@digeo.com><18400000.1051109459@[10.10.2.4]> <20030423144648.5ce68d11.akpm@digeo.com> <1565150000.1051134452@flay> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <1565150000.1051134452@flay>; from mbligh@aracnet.com on Wed, Apr 23, 2003 at 02:47:32PM -0700 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Apr 23, 2003 at 02:47:32PM -0700, Martin J. Bligh wrote: > The performance improvement was about 25% of systime according to my > measurements - I don't call that insignificant. Never, ever use changes in system time as a justification for a patch. We all know that Linux's user/system time accounting is patently unreliable. Remember Nyquist? Talk to me about differences in wall clock and your comments will be more interesting. -ben