Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753300Ab1DSAio (ORCPT ); Mon, 18 Apr 2011 20:38:44 -0400 Received: from ud10.udmedia.de ([194.117.254.50]:42748 "EHLO mail.ud10.udmedia.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752872Ab1DSAim (ORCPT ); Mon, 18 Apr 2011 20:38:42 -0400 Date: Tue, 19 Apr 2011 02:38:39 +0200 From: Markus Trippelsdorf To: Ingo Molnar Cc: Linus Torvalds , Andrew Lutomirski , linux-kernel@vger.kernel.org, Andi Kleen , x86 Subject: Re: [RFT] Please test rdtsc on various x86-64 hardware (app included) Message-ID: <20110419003839.GA1624@x4.trippels.de> References: <20110418203726.GA30868@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20110418203726.GA30868@elte.hu> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 923 Lines: 28 On 2011.04.18 at 22:37 +0200, Ingo Molnar wrote: > > * Linus Torvalds wrote: > > > Some opteron love would be good, but I don't have access to any right here. > > Here's one: And another: CPU vendor : AuthenticAMD CPU model : AMD Phenom(tm) II X4 955 Processor CPU stepping : 2 TSC flags : tsc rdtscp constant_tsc nonstop_tsc Using mfence_rdtsc because you don't have an Intel CPU Will test the "mfence;rdtsc" clock. Now test passed : margin 208 with 8769512 samples Load3 test passed: margin 339 with 4880373 samples Load test passed : margin 193 with 7189144 samples Store test passed: margin 192 with 7149930 samples -- Markus -- 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/