From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757353AbYCWFSk (ORCPT ); Sun, 23 Mar 2008 01:18:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751921AbYCWFSe (ORCPT ); Sun, 23 Mar 2008 01:18:34 -0400 Received: from turing-police.cc.vt.edu ([128.173.14.107]:57406 "EHLO turing-police.cc.vt.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751795AbYCWFSd (ORCPT ); Sun, 23 Mar 2008 01:18:33 -0400 X-Mailer: exmh version 2.7.2 01/07/2005 with nmh-1.2 To: David Howells Cc: akpm@linux-foundation.org, torvalds@osdl.org, Trond.Myklebust@netapp.com, chuck.lever@oracle.com, nfsv4@linux-nfs.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, selinux@tycho.nsa.gov, linux-security-module@vger.kernel.org Subject: Re: Performance degradation measurement [was Re: [PATCH 06/37] Security: Separate task security context from task_struct [ver #34]] In-Reply-To: Your message of "Wed, 19 Mar 2008 17:12:08 -0000." <17688.1205946728@redhat.com> From: Valdis.Kletnieks@vt.edu References: <20080229004405.4142.32147.stgit@warthog.procyon.org.uk> <20080229004332.4142.51771.stgit@warthog.procyon.org.uk> <17688.1205946728@redhat.com> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="==_Exmh_1206249437_3492P"; micalg=pgp-sha1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit Date: Sun, 23 Mar 2008 01:17:17 -0400 Message-ID: <25920.1206249437@turing-police.cc.vt.edu> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --==_Exmh_1206249437_3492P Content-Type: text/plain; charset=us-ascii On Wed, 19 Mar 2008 17:12:08 -0000, David Howells said: (Sorry - finally catching up) > (1) SELinux enabled, none of the security patches: > > (gdb) p (1.119+1.110+1.104+1.106+1.095+1.112+1.094+1.091+1.112)/9 > $3 = 1.104777777777777 > (4) LSM/SELinux disabled, none of the security patches: > > (gdb) p (1.121+1.136+1.137+1.121+1.122+1.131+1.121+1.131+1.118)/9 > $7 = 1.1264444444444437 What's up with *that*? The *fastest* run with it disabled is 1.118, and the *slowest* with it enabled is 1.119. At that point, I have to wonder what we're really measuring here.... --==_Exmh_1206249437_3492P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.8 (GNU/Linux) Comment: Exmh version 2.5 07/13/2001 iD8DBQFH5efdcC3lWbTT17ARAg2qAJwKHeKqOVtSgql6bvnN+qdx6dg5ywCfQrPf 5uPBBxeg5QOLo8zbaUxDe+0= =gNsw -----END PGP SIGNATURE----- --==_Exmh_1206249437_3492P--