From owner-freebsd-current@FreeBSD.ORG Sun Sep 2 09:54:34 2007 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 6252816A418 for ; Sun, 2 Sep 2007 09:54:34 +0000 (UTC) (envelope-from peterjeremy@optushome.com.au) Received: from turion.vk2pj.dyndns.org (c220-239-20-82.belrs4.nsw.optusnet.com.au [220.239.20.82]) by mx1.freebsd.org (Postfix) with ESMTP id DBCEE13C483 for ; Sun, 2 Sep 2007 09:54:33 +0000 (UTC) (envelope-from peterjeremy@optushome.com.au) Received: from turion.vk2pj.dyndns.org (localhost.vk2pj.dyndns.org [127.0.0.1]) by turion.vk2pj.dyndns.org (8.14.1/8.14.1) with ESMTP id l829sHLd023865; Sun, 2 Sep 2007 19:54:17 +1000 (EST) (envelope-from peter@turion.vk2pj.dyndns.org) Received: (from peter@localhost) by turion.vk2pj.dyndns.org (8.14.1/8.14.1/Submit) id l829sHVZ023864; Sun, 2 Sep 2007 19:54:17 +1000 (EST) (envelope-from peter) Date: Sun, 2 Sep 2007 19:54:17 +1000 From: Peter Jeremy To: Bruce Cran Message-ID: <20070902095417.GN1181@turion.vk2pj.dyndns.org> References: <46D83351.9000407@cran.org.uk> <46D8719A.1070109@cran.org.uk> <20070901204947.GY1181@turion.vk2pj.dyndns.org> <46D9EE1E.9030009@cran.org.uk> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="OROCMA9jn6tkzFBc" Content-Disposition: inline In-Reply-To: <46D9EE1E.9030009@cran.org.uk> X-PGP-Key: http://members.optusnet.com.au/peterjeremy/pubkey.asc User-Agent: Mutt/1.5.16 (2007-06-09) Cc: current@freebsd.org Subject: Re: High interrupt load on VIA C3 machine X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 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: Sun, 02 Sep 2007 09:54:34 -0000 --OROCMA9jn6tkzFBc Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 2007-Sep-01 23:56:30 +0100, Bruce Cran wrote: >The VIA C3 supports 2 frequencies - 531 and 265 MHz. The high interrupt= =20 >load only occurs when I set dev.cpu.0.freq to 265, which makes sense. Half the clock rate implies twice the interrupt load - it it should be about 3.5% at 531MHz if its 7% at 265MHz. If you're seeing something significantly different then there is some other factor at work. --=20 Peter Jeremy --OROCMA9jn6tkzFBc Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (FreeBSD) iD8DBQFG2ohJ/opHv/APuIcRAvEKAJ9BDnGc/VEfjbOUr6YHji0qvhFb3gCeLvw5 TuMpkbC1FpwcKuRfqoiebpw= =P33y -----END PGP SIGNATURE----- --OROCMA9jn6tkzFBc--