From owner-freebsd-current@FreeBSD.ORG Mon Nov 15 04:19:29 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id B888016A4CE for ; Mon, 15 Nov 2004 04:19:29 +0000 (GMT) Received: from rproxy.gmail.com (rproxy.gmail.com [64.233.170.201]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4FA2643D39 for ; Mon, 15 Nov 2004 04:19:29 +0000 (GMT) (envelope-from leafy7382@gmail.com) Received: by rproxy.gmail.com with SMTP id 34so495983rns for ; Sun, 14 Nov 2004 20:19:28 -0800 (PST) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:references; b=rO5KiLCbm+Sx/RYakNS5rfNYf9uO4qQMAxXlO2LjdTsVvZgxMRj6dGA5G6pQeZAVmxZLX9drPgpRVt1AkYi48gm5TE0ROQVxHivlaqeMVCf5UUguhtCv2d40KN4jENplC4FqgyTEp7zYmffE8ksW44/dUvWF/HQc2GnoRwKEi14= Received: by 10.38.26.40 with SMTP id 40mr820350rnz; Sun, 14 Nov 2004 20:19:28 -0800 (PST) Received: by 10.38.8.55 with HTTP; Sun, 14 Nov 2004 20:19:28 -0800 (PST) Message-ID: Date: Mon, 15 Nov 2004 12:19:28 +0800 From: Jiawei Ye To: current@freebsd.org In-Reply-To: <20041115034101.GF51636@squash.dsto.defence.gov.au> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit References: <4197C217-3622-11D9-B78A-000A95A9A574@nordahl.net> <41972BA2.3090609@freebsd.org> <4197A47D.1070205@freebsd.org> <4487F0CE-3685-11D9-B78A-000A95A9A574@nordahl.net> <20041115034101.GF51636@squash.dsto.defence.gov.au> Subject: Re: Detection of HTT X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: Jiawei Ye List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 15 Nov 2004 04:19:29 -0000 On Mon, 15 Nov 2004 14:11:01 +1030, Wilkinson, Alex wrote: > Why is HTT turned off out of the box ? I thought HTT was meant to be a > hardware 'performance enhancing' feature. > > Why do we disable it ? > > - aW Because it benefits only certain types of load and slows down the machine otherwise. Jiawei -- "Without the userland, the kernel is useless." --inspired by The Tao of Programming