Date: Wed, 9 Sep 2009 10:20:48 +0930 From: "Daniel O'Connor" <doconnor@gsoft.com.au> To: Ian Smith <smithi@nimnet.asn.au> Cc: FreeBSD Stable <freebsd-stable@freebsd.org>, Henrik Friedrichsen <hrkfdn@gmail.com> Subject: Re: Detecting CPU throttling on over temperature Message-ID: <200909091020.51049.doconnor@gsoft.com.au> In-Reply-To: <20090909030624.Y89278@sola.nimnet.asn.au> References: <200909082209.37454.doconnor@gsoft.com.au> <cbbf66600909080652qa6a90cckff95e6d18561be24@mail.gmail.com> <20090909030624.Y89278@sola.nimnet.asn.au>
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--nextPart8884801.qQvL6L6gmr Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Wed, 9 Sep 2009, Ian Smith wrote: > > > Does anyone know if it is possible to determine if this is the > > > case? ie is there a way to be informed if throttling has > > > occurred? > > Might be easier to hack powerd.c as an existing pretty lightweight > way of monitoring CPU freq (to log or signal on detected freq lowered > by throttling, say?) even if you don't need/want it to actually vary > freq according to load, eg setting idle/busy shift factors to > 'never/always'? Hmm, that could work. It seems odd to me that there is no direct way the BIOS can notify the=20 OS it's throttling the CPU though. =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 --nextPart8884801.qQvL6L6gmr 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) iD8DBQBKpvvq5ZPcIHs/zowRAuOsAKChwb1/uiIExkaWPthf5MagdNru5wCfakgZ pqvEk736iTlwr9s2kBQdXAU= =awGz -----END PGP SIGNATURE----- --nextPart8884801.qQvL6L6gmr--
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