From owner-freebsd-current@FreeBSD.ORG Mon Nov 15 04:04:56 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 C38B616A4CE for ; Mon, 15 Nov 2004 04:04:56 +0000 (GMT) Received: from obsecurity.dyndns.org (CPE0050040655c8-CM00111ae02aac.cpe.net.cable.rogers.com [69.194.102.143]) by mx1.FreeBSD.org (Postfix) with ESMTP id 99A1F43D39 for ; Mon, 15 Nov 2004 04:04:56 +0000 (GMT) (envelope-from kris@obsecurity.org) Received: by obsecurity.dyndns.org (Postfix, from userid 1000) id 8E54E512F3; Sun, 14 Nov 2004 20:07:42 -0800 (PST) Date: Sun, 14 Nov 2004 20:07:42 -0800 From: Kris Kennaway To: current@freebsd.org Message-ID: <20041115040742.GA50559@xor.obsecurity.org> 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> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="AhhlLboLdkugWU4S" Content-Disposition: inline In-Reply-To: <20041115034101.GF51636@squash.dsto.defence.gov.au> User-Agent: Mutt/1.4.2.1i Subject: Re: Detection of HTT X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list 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 04:04:56 -0000 --AhhlLboLdkugWU4S Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Mon, Nov 15, 2004 at 02:11:01PM +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. Only in the Intel marketing literature. > Why do we disable it ? Because it's not, for general workloads. Consult the archives for further discussion of this topic, which comes up frequently. Kris --AhhlLboLdkugWU4S Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.6 (FreeBSD) iD8DBQFBmCuOWry0BWjoQKURAoYwAKCOPv1ZZwbz7KBWReI20on6x1i3pwCg2kJB Q7omwiWPSLTX/s+YcSCnXQ0= =IoxC -----END PGP SIGNATURE----- --AhhlLboLdkugWU4S--