From owner-freebsd-hackers Mon Nov 25 17:40:27 2002 Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id D055537B401 for ; Mon, 25 Nov 2002 17:40:26 -0800 (PST) Received: from xorpc.icir.org (xorpc.icir.org [192.150.187.68]) by mx1.FreeBSD.org (Postfix) with ESMTP id 67F9743EAA for ; Mon, 25 Nov 2002 17:40:26 -0800 (PST) (envelope-from rizzo@xorpc.icir.org) Received: from xorpc.icir.org (localhost [127.0.0.1]) by xorpc.icir.org (8.12.3/8.12.3) with ESMTP id gAQ1ePTO075953; Mon, 25 Nov 2002 17:40:25 -0800 (PST) (envelope-from rizzo@xorpc.icir.org) Received: (from rizzo@localhost) by xorpc.icir.org (8.12.3/8.12.3/Submit) id gAQ1ePPV075952; Mon, 25 Nov 2002 17:40:25 -0800 (PST) (envelope-from rizzo) Date: Mon, 25 Nov 2002 17:40:25 -0800 From: Luigi Rizzo To: Nate Lawson Cc: hackers@FreeBSD.ORG Subject: Re: out-of-order execution and code profiling Message-ID: <20021125174025.C70294@xorpc.icir.org> References: <20021125162615.A52619@xorpc.icir.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: ; from nate@root.org on Mon, Nov 25, 2002 at 05:15:06PM -0800 Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG thanks a lot for the pointer to CPUID luigi On Mon, Nov 25, 2002 at 05:15:06PM -0800, Nate Lawson wrote: ... > The Intel processor manual has an explicit example for this and recommends > you use cpuid as a serializing instruction before the call to rdtsc. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message