Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754268AbYC1OTo (ORCPT ); Fri, 28 Mar 2008 10:19:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753208AbYC1OTg (ORCPT ); Fri, 28 Mar 2008 10:19:36 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:55932 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753009AbYC1OTg (ORCPT ); Fri, 28 Mar 2008 10:19:36 -0400 Date: Fri, 28 Mar 2008 15:18:47 +0100 From: Ingo Molnar To: "Frank Ch. Eigler" Cc: KOSAKI Motohiro , Mathieu Desnoyers , akpm@linux-foundation.org, linux-kernel@vger.kernel.org, Linus Torvalds Subject: Re: [patch for 2.6.26 0/7] Architecture Independent Markers Message-ID: <20080328141845.GF29218@elte.hu> References: <20080327132057.449831367@polymtl.ca> <20080327154053.GA5890@elte.hu> <2f11576a0803271008t7574ead1s9ea285d8df57ef1@mail.gmail.com> <20080328101500.GF30863@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 884 Lines: 23 * Frank Ch. Eigler wrote: > > >> > NACK-ed-by: Ingo Molnar > >> [...] > >> I wonder why nobody doesn't fix this serious problem until now. [...] > > Frankly, the "problem" has not yet been established. Ingo has failed > to respond to Mathieu's analysis of the actual instruction streams, > which cast doubt on Ingo's technique of simply counting bytes. [...] uhm no. The "difference" is due to Matthieu counting on the platform that is most favorable to his argument: 32-bit, while i counted on 64-bit where most servers operate (and where instrumentation micro-cost actually matters). Ingo -- 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/