From owner-freebsd-threads@FreeBSD.ORG Mon May 31 06:58:07 2004 Return-Path: Delivered-To: freebsd-threads@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id F20BD16A4CE for ; Mon, 31 May 2004 06:58:06 -0700 (PDT) Received: from clueful.shagged.org (clueful.shagged.org [212.13.201.101]) by mx1.FreeBSD.org (Postfix) with ESMTP id ADA9443D58 for ; Mon, 31 May 2004 06:58:06 -0700 (PDT) (envelope-from chris@clueful.shagged.org) Received: from chris by clueful.shagged.org with local (Exim 4.30; FreeBSD) id 1BUnIj-000Fqi-NW for freebsd-threads@freebsd.org; Mon, 31 May 2004 14:58:05 +0100 Date: Mon, 31 May 2004 14:58:05 +0100 From: Chris Elsworth To: freebsd-threads@freebsd.org Message-ID: <20040531135805.GA60731@shagged.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.6i Sender: Chris Elsworth X-SA-Exim-Mail-From: chris@clueful.shagged.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Subject: Something we overlooked with MySQL and FreeBSD vs Linux? X-BeenThere: freebsd-threads@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Threading on FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 31 May 2004 13:58:07 -0000 Sorry to drag this up again :) I would check myself, but I don't have access to a HT enabled machine with FreeBSD on it anymore to check the now-default setting of this sysctl. The last entry in UPDATING records that machdep.hlt_logical_cpus is 1, stopping user processes from using the logical CPUs. Is this still the case? I never knew about that to tweak it. I know, I should have read UPDATING. If that is still 1 as default, that might explain my 50% performance loss on FreeBSD. -- Chris