From owner-freebsd-hackers@FreeBSD.ORG Sat Mar 6 07:29:13 2010 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 015F61065670 for ; Sat, 6 Mar 2010 07:29:13 +0000 (UTC) (envelope-from doconnor@gsoft.com.au) Received: from cain.gsoft.com.au (cain.gsoft.com.au [203.31.81.10]) by mx1.freebsd.org (Postfix) with ESMTP id 697178FC0A for ; Sat, 6 Mar 2010 07:29:12 +0000 (UTC) Received: from inchoate.gsoft.com.au (ppp121-45-157-125.lns6.adl6.internode.on.net [121.45.157.125]) (authenticated bits=0) by cain.gsoft.com.au (8.13.8/8.13.8) with ESMTP id o267Sd2X092440 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Sat, 6 Mar 2010 17:58:40 +1030 (CST) (envelope-from doconnor@gsoft.com.au) From: "Daniel O'Connor" To: Kevin Day Date: Sat, 6 Mar 2010 17:58:18 +1030 User-Agent: KMail/1.9.10 References: <0ECDEB94-E60E-45C7-98AC-5E948DE4649C@dragondata.com> <201003061635.44684.doconnor@gsoft.com.au> <003E5B1C-2471-47B2-9999-27719A5E26FE@dragondata.com> In-Reply-To: <003E5B1C-2471-47B2-9999-27719A5E26FE@dragondata.com> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart1720374.P68McgVArQ"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201003061758.34384.doconnor@gsoft.com.au> X-Spam-Score: -1.76 () AWL,BAYES_00,RDNS_DYNAMIC X-Scanned-By: MIMEDefang 2.63 on 203.31.81.10 Cc: freebsd-hackers@freebsd.org Subject: Re: ACPI/power implementation causing performance loss with i7/Nehalem turbo boost X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 06 Mar 2010 07:29:13 -0000 --nextPart1720374.P68McgVArQ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Sat, 6 Mar 2010, Kevin Day wrote: > > ISTR FreeBSD defaults to a very conservative setting here so you > > may have to set it manually. > > Yeah, sorry for not mentioning that I had tried this and didn't see > any change, so I thought I was on the wrong track. OK. > Is the note about adding hint.apic.0.clock=3D0 mentioned on > http://wiki.freebsd.org/TuningPowerConsumption needed to leave C1 at > all on SMP systems? Dunno sorry.. The only SMP system I have running a recent FreeBSD only=20 supports C1 :) =2D-=20 Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C --nextPart1720374.P68McgVArQ Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (FreeBSD) iD8DBQBLkgQi5ZPcIHs/zowRAnHfAJ96c3p1r/59jGPsq9Rnw1YJRvkulgCfccQm aXmtX/LAHHMBCHU9UNjicHQ= =zLGn -----END PGP SIGNATURE----- --nextPart1720374.P68McgVArQ--