Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261646AbVE3QkK (ORCPT ); Mon, 30 May 2005 12:40:10 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261647AbVE3QkK (ORCPT ); Mon, 30 May 2005 12:40:10 -0400 Received: from colin.muc.de ([193.149.48.1]:7440 "EHLO mail.muc.de") by vger.kernel.org with ESMTP id S261646AbVE3QkF (ORCPT ); Mon, 30 May 2005 12:40:05 -0400 Date: 30 May 2005 18:40:03 +0200 Date: Mon, 30 May 2005 18:40:03 +0200 From: Andi Kleen To: Chris Friesen Cc: Kyle Moffett , john cooper , linux-kernel@vger.kernel.org Subject: Re: spinaphore conceptual draft Message-ID: <20050530164003.GB8141@muc.de> References: <934f64a205052715315c21d722@mail.gmail.com> <429B289D.7070308@nortel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <429B289D.7070308@nortel.com> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 679 Lines: 18 On Mon, May 30, 2005 at 08:52:13AM -0600, Chris Friesen wrote: > Andi Kleen wrote: > > >On many architectures (including popular ones like AMD x86-64) > >there is no reliable fast monotonic (1) count unfortunately > > What about rdtsc? It fails the reliable and monotonic test on AMD; on Intel EM64T machines it fails the fast test (although the alternatives are even slower) and also the first ones one a few bigger ones. -Andi - 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/