From owner-freebsd-stable Fri Jun 28 18:55:13 2002 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 41A3937B409; Fri, 28 Jun 2002 18:55:07 -0700 (PDT) Received: from alpha.yumyumyum.org (dsl092-171-091.wdc1.dsl.speakeasy.net [66.92.171.91]) by mx1.FreeBSD.org (Postfix) with ESMTP id 67E4743E0A; Fri, 28 Jun 2002 18:55:06 -0700 (PDT) (envelope-from culverk@yumyumyum.org) Received: from alpha.yumyumyum.org (localhost [127.0.0.1]) by alpha.yumyumyum.org (8.12.3/8.12.3) with ESMTP id g5T1t5QJ001266; Fri, 28 Jun 2002 21:55:06 -0400 (EDT) (envelope-from culverk@yumyumyum.org) Received: from localhost (culverk@localhost) by alpha.yumyumyum.org (8.12.3/8.12.3/Submit) with ESMTP id g5T1t5lU001263; Fri, 28 Jun 2002 21:55:05 -0400 (EDT) (envelope-from culverk@yumyumyum.org) X-Authentication-Warning: alpha.yumyumyum.org: culverk owned process doing -bs Date: Fri, 28 Jun 2002 21:55:05 -0400 (EDT) From: Kenneth Culver To: John David Duncan Cc: freebsd-smp@FreeBSD.ORG, Subject: Re: 2 xeons = 4 CPUs? In-Reply-To: Message-ID: <20020628215435.J1246-100000@alpha.yumyumyum.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG > That's twice as many CPUs as I think I have, each going 400Mhz faster. > Is this safe? Correct? Is it that hyperthreading stuff? Should I > disable it? It's the hyperthreading, I'd disable it simply because it doesn't make things any faster than running with a normal smp configuration. Ken To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message