Date: Sun, 2 Sep 2007 19:54:17 +1000 From: Peter Jeremy <peterjeremy@optushome.com.au> To: Bruce Cran <bruce@cran.org.uk> Cc: current@freebsd.org Subject: Re: High interrupt load on VIA C3 machine Message-ID: <20070902095417.GN1181@turion.vk2pj.dyndns.org> In-Reply-To: <46D9EE1E.9030009@cran.org.uk> References: <46D83351.9000407@cran.org.uk> <46D8719A.1070109@cran.org.uk> <20070901204947.GY1181@turion.vk2pj.dyndns.org> <46D9EE1E.9030009@cran.org.uk>
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--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 <bruce@cran.org.uk> 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--
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