Date: Thu, 12 Jan 2006 11:39:58 +0000 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: Mike Jakubik <mikej@rogers.com> Cc: freebsd-stable@freebsd.org Subject: Re: powerd effectiveness Message-ID: <43C6400E.2030203@infracaninophile.co.uk> In-Reply-To: <43C5F328.4030507@rogers.com> References: <43C5A261.1020407@rogers.com> <200601121554.55657.doconnor@gsoft.com.au> <43C5EAB0.3090805@rogers.com> <200601121635.09835.doconnor@gsoft.com.au> <43C5F328.4030507@rogers.com>
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This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigF58AFB187156D7C4ADE27330 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Mike Jakubik wrote: > Daniel O'Connor wrote: > >> Wow, that's weird, wish my AMD would do speeds like that :) >> >> As for your temperature observation - I have no idea sorry. It would >> appear that powerd is doing the right thing but for some reason your >> CPU is not benefiting. That said checking by measuring temperature is >> fraught with complexity because there is probably a significant delay >> between a change in power consumption and a corresponding chaange in >> heatsink temperature. >> > > > Actually, i took readings from the wrong box :P > > CPU: AMD Athlon(tm) Processor (1210.79-MHz 686-class CPU) > acpi0: <ASUS A7V> on motherboard > > root@mail:~# sysctl dev.cpu. > dev.cpu.0.%desc: ACPI CPU > dev.cpu.0.%driver: cpu > dev.cpu.0.%location: handle=\_PR_.CPU0 > dev.cpu.0.%pnpinfo: _HID=none _UID=0 > dev.cpu.0.%parent: acpi0 > dev.cpu.0.freq: 75 > dev.cpu.0.freq_levels: 1215/-1 1139/-1 1063/-1 987/-1 911/-1 835/-1 > 759/-1 683/-1 607/-1 531/-1 455/-1 379/-1 303/-1 227/-1 151/-1 75/-1 > > Thats the correct one, it is 75mhz. I was suspecting hardwares > limitations in terms of modulating the frequency quickly enough. Just > wanted to make sure. Only vaguely apropos, but take a look at sysutils/fvcool which can help reduce the power consumption on Athlons quite effectively. Cheers, Matthew -- Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard Flat 3 PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate Kent, CT11 9PW --------------enigF58AFB187156D7C4ADE27330 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iD8DBQFDxkAO8Mjk52CukIwRA25YAJ9FkDgKfwkeLTs3AhqTGVIaRi2C+QCeNAtb DqupS9ywiQE3DwAvzOW6QFg= =nrrU -----END PGP SIGNATURE----- --------------enigF58AFB187156D7C4ADE27330--
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