From owner-freebsd-performance@FreeBSD.ORG Mon Oct 24 05:56:47 2005 Return-Path: X-Original-To: freebsd-performance@freebsd.org Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 49FF116A41F for ; Mon, 24 Oct 2005 05:56:47 +0000 (GMT) (envelope-from joseph.koshy@gmail.com) Received: from xproxy.gmail.com (xproxy.gmail.com [66.249.82.199]) by mx1.FreeBSD.org (Postfix) with ESMTP id D983043D45 for ; Mon, 24 Oct 2005 05:56:46 +0000 (GMT) (envelope-from joseph.koshy@gmail.com) Received: by xproxy.gmail.com with SMTP id t15so26724wxc for ; Sun, 23 Oct 2005 22:56:46 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=mJkTHluBfoKi5JuxLL5suNHmdgBnPWG0KPWFoqH35gKyYyR13gnk8IY5W0Vv6dFyd3qgGuUukZ5qwx/0kynm6m+oyyIzorupdt4A+21RbOgbTAsuVQp7b+Suh6KQoy4vzz3nsC0PuOxjUQwwKdVrICtcWVRZxnlxqSr6qQuxqKI= Received: by 10.70.67.13 with SMTP id p13mr3357453wxa; Sun, 23 Oct 2005 22:56:46 -0700 (PDT) Received: by 10.70.105.13 with HTTP; Sun, 23 Oct 2005 22:56:46 -0700 (PDT) Message-ID: <84dead720510232256q73f32c12v58bf86ca703048a6@mail.gmail.com> Date: Mon, 24 Oct 2005 11:26:46 +0530 From: Joseph Koshy To: Lukas Razik In-Reply-To: <377396417@web.de> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline References: <377396417@web.de> Cc: freebsd-performance@freebsd.org Subject: Re: Performance issue with 5.4-RELEASE-p8 but not with 5.4-RELEASE X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 24 Oct 2005 05:56:47 -0000 On 10/24/05, Lukas Razik wrote: > > O.K. > > I've found the reason for the issue. > After exchanging the newer > src/sys/i386/include/cpufunc.h,v 1.142.6.1 2005/05/13 00:12:57 > src/sys/i386/i386/mp_machdep.c,v 1.235.2.6.2.3 2005/05/13 00:12:56 > from 5.4-RELEASE-p1 by the old > > src/sys/i386/include/cpufunc.h,v 1.142 2004/04/07 20:46:05 > src/sys/i386/i386/mp_machdep.c,v 1.235.2.6.2.2 2005/05/01 05:38:13 > from 5.4-RELEASE the issue disappeared. >From the CVS commit log for this change at: http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/i386/i386/mp_machdep.c?only= _with_tag=3DRELENG_5_4 "Add a knob for disabling/enabling HTT, "machdep.hyperthreading_allowed". Default off due to information disclosure on multi-user systems." Does turning HTT back on fix the regression? -- FreeBSD Volunteer, http://people.freebsd.org/~jkoshy