From owner-freebsd-stable@FreeBSD.ORG Tue Nov 4 01:57:22 2003 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1612316A4CE for ; Tue, 4 Nov 2003 01:57:22 -0800 (PST) Received: from lurza.secnetix.de (lurza.secnetix.de [195.143.231.20]) by mx1.FreeBSD.org (Postfix) with ESMTP id A806A43FBD for ; Tue, 4 Nov 2003 01:57:18 -0800 (PST) (envelope-from olli@lurza.secnetix.de) Received: from lurza.secnetix.de (ovsjiv@localhost [127.0.0.1]) by lurza.secnetix.de (8.12.9p1/8.12.8) with ESMTP id hA49vGOC070106 for ; Tue, 4 Nov 2003 10:57:16 +0100 (CET) (envelope-from oliver.fromme@secnetix.de) Received: (from olli@localhost) by lurza.secnetix.de (8.12.9p1/8.12.8/Submit) id hA49vGD2070104; Tue, 4 Nov 2003 10:57:16 +0100 (CET) Date: Tue, 4 Nov 2003 10:57:16 +0100 (CET) Message-Id: <200311040957.hA49vGD2070104@lurza.secnetix.de> From: Oliver Fromme To: freebsd-stable@FreeBSD.ORG In-Reply-To: <20031028215516.GA9584@Odin.AC.HMC.Edu> X-Newsgroups: list.freebsd-stable User-Agent: tin/1.5.4-20000523 ("1959") (UNIX) (FreeBSD/4.8-RELEASE (i386)) MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Subject: Re: [4.9-RC] What happened to ``options HTT'' ? X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: freebsd-stable@FreeBSD.ORG List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 04 Nov 2003 09:57:22 -0000 Brooks Davis wrote: > On Tue, Oct 28, 2003 at 11:42:57PM +0200, Jaco van Tonder wrote: > > I just cvsup'ed to that latest -STABLE and saw that option HTT is no longer > > availible in LINT. Does anyone know why this is no longer supported? I > > searched the stable@ list but cant seem to find anything on this. > > It is no longer necessicary as HTT logical CPUs are now activated by > default. If you wish to use them, set the sysctl > machdep.hlt_logical_cpus to 0. Can that sysctl be changed at runtime, or is it only possible to do it in the loader? The UPDATING entry isn't completely clear about that. By the way, are there any "real world" experiences whether it's worth it to use the logical CPUs, say, on a PostgreSQL or Apache server, or with Java stuff (jakarta/tomcat etc.)? Regards Oliver -- Oliver Fromme, secnetix GmbH & Co KG, Oettingenstr. 2, 80538 München Any opinions expressed in this message may be personal to the author and may not necessarily reflect the opinions of secnetix in any way. "C++ is the only current language making COBOL look good." -- Bertrand Meyer