Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758576AbXLLKCo (ORCPT ); Wed, 12 Dec 2007 05:02:44 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755107AbXLLKCg (ORCPT ); Wed, 12 Dec 2007 05:02:36 -0500 Received: from os.eurotux.com ([216.75.63.6]:44170 "EHLO os.eurotux.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754903AbXLLKCf (ORCPT ); Wed, 12 Dec 2007 05:02:35 -0500 X-Greylist: delayed 399 seconds by postgrey-1.27 at vger.kernel.org; Wed, 12 Dec 2007 05:02:34 EST Date: Wed, 12 Dec 2007 09:55:47 +0000 From: Luciano Rocha To: Rene Herman Cc: Linux Kernel , dpreed@reed.com, Alan Cox , pavel@ucw.cz, andi@firstfloor.org, rol@as2917.net, Krzysztof Halasa , david@davidnewall.com, hpa@zytor.com, john@stoffel.org, linux-os@analogic.com Subject: Re: [RFT] Port 0x80 I/O speed Message-ID: <20071212095547.GB16469@bit.office.eurotux.com> Mail-Followup-To: Luciano Rocha , Rene Herman , Linux Kernel , dpreed@reed.com, Alan Cox , pavel@ucw.cz, andi@firstfloor.org, rol@as2917.net, Krzysztof Halasa , david@davidnewall.com, hpa@zytor.com, john@stoffel.org, linux-os@analogic.com References: <475F1DC6.5090403@keyaccess.nl> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="v9Ux+11Zm5mwPlX6" Content-Disposition: inline In-Reply-To: <475F1DC6.5090403@keyaccess.nl> User-Agent: Mutt/1.5.14 (2007-03-31) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1408 Lines: 53 --v9Ux+11Zm5mwPlX6 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Dec 12, 2007 at 12:31:18AM +0100, Rene Herman wrote: > Good day. >=20 > Would some people on x86 (both 32 and 64) be kind enough to compile and = run=20 > the attached program? This is about testing how long I/O port access to = port=20 > 0x80 takes. It measures in CPU cycles so CPU speed is crucial in reporti= ng. >=20 $ sudo ./port80 cycles: out 2729, in 1872 $ sudo ./port80 cycles: out 2729, in 1872 $ sudo ./port80 cycles: out 2711, in 1856 $ sudo ./port80 cycles: out 2711, in 1856 model name : Intel(R) Pentium(R) 4 CPU 1.90GHz stepping : 2 cpu MHz : 1917.229 cache size : 256 KB --=20 Luciano Rocha Eurotux Inform=E1tica, S.A. --v9Ux+11Zm5mwPlX6 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) iD8DBQFHX7AjinSul6a7oB8RApWrAJ9J0zOwBU2Kh6NCpPG2kpWR2gxregCbBMUT 0P8smb5N2/n1l3HrH7n1nSM= =a0da -----END PGP SIGNATURE----- --v9Ux+11Zm5mwPlX6-- -- 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/