Date: Fri, 13 Jan 2006 13:15:21 +1030 From: "Daniel O'Connor" <doconnor@gsoft.com.au> To: freebsd-stable@freebsd.org Cc: Mike Jakubik <mikej@rogers.com>, stable@freebsd.org, Ivan Voras <ivoras@fer.hr> Subject: Re: powerd effectiveness Message-ID: <200601131315.23059.doconnor@gsoft.com.au> In-Reply-To: <43C6584F.10001@fer.hr> References: <43C5A261.1020407@rogers.com> <43C6584F.10001@fer.hr>
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--nextPart379041178.ext2gyxU4I Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Thu, 12 Jan 2006 23:53, Ivan Voras wrote: > dev.cpu.0.freq_levels: 1403/-1 1315/-1 1227/-1 1139/-1 1052/-1 964/-1 > 876/-1 789/-1 701/-1 613/-1 526/-1 438/-1 350/-1 263/-1 175/-1 87/-1 I have a Pentium-M which shows -1 like that.. I think it's just that ACPI is not supplying power consumption data. > I think the infrastructure used by powerd supports both cases, but won't > get you much savings if the CPU doesn't support the first case. powerd only uses the sysctl's - it doesn't need to know specific details as= =20 long as the cpufreq infrastructure understands your system. > What I would like for FreeSBD to support is turning off of devices like > WinXP does. Not only hard drives, but it seems that WinXP can somehow > turn off network cards, USB controllers and/or devices and similar > peripherals when running on batteries and those are not used (it seems > it's not like disabling them completely but something else). I believe FreeBSD turns PCI cards off if there is no driver attached. I don't think XP actually turns those devices off if you are actually using= =20 them. Not sure about the specifics for stuff like USB (ie what happens if=20 it's sleeping and you connect a USB peripheral) =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 --nextPart379041178.ext2gyxU4I Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQBDxxRD5ZPcIHs/zowRAhW7AKCPgSY8Kx7AGbUbMEXgxIWPfUcleQCeNMTb jCrC2K4vnUJyN9X0ZD5//cs= =Hnm5 -----END PGP SIGNATURE----- --nextPart379041178.ext2gyxU4I--
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