From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758542AbYDKIZY (ORCPT ); Fri, 11 Apr 2008 04:25:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756636AbYDKIZN (ORCPT ); Fri, 11 Apr 2008 04:25:13 -0400 Received: from ug-out-1314.google.com ([66.249.92.173]:32716 "EHLO ug-out-1314.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754100AbYDKIZL (ORCPT ); Fri, 11 Apr 2008 04:25:11 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=glOuph+rMilAT7hGhKqHIqNGpevJ9825Z0d++a3YtWpEOhu2TvdOcMNQ+t9lCzB1rPeEQVGex0pufuhjC9Mjv/ZIrgRYcc/NyQNUvKQdOjT1/8RRc6H4frFGoFnO034DTZ7pe1gk3q7f2hLuU+//vkg+ad5TRle63EuUaRqzboU= Message-ID: <3d8471ca0804110125r1b4e97c0ua419587a64c9b1c7@mail.gmail.com> Date: Fri, 11 Apr 2008 10:25:09 +0200 From: "Guillaume Chazarain" To: "Andi Kleen" Subject: Re: [PATCH] x86: set_cyc2ns_scale() remove tsc_now and ns_now Cc: "Ingo Molnar" , "Karsten Wiese" , linux-kernel@vger.kernel.org In-Reply-To: <20080411080617.GP10019@one.firstfloor.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <200804102331.11815.fzu@wemgehoertderstaat.de> <873apsn8g7.fsf@basil.nowhere.org> <20080411075554.GA6834@elte.hu> <20080411080617.GP10019@one.firstfloor.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Apr 11, 2008 at 10:06 AM, Andi Kleen wrote: > At some point you have to generate an offset to something and that > offset must be different for different frequencies, otherwise > you get large systematic errors This offset is already there, represented by rq->clock - sched_clock() -- Guillaume