From: Dominik Brodowski <linux@dominikbrodowski.de>
To: Zhijian Lu <zl4j@cms.mail.virginia.edu>
Cc: cpufreq@www.linux.org.uk
Subject: Re: Desktop with DVS
Date: Mon, 22 Mar 2004 21:17:33 +0100 [thread overview]
Message-ID: <20040322201733.GA9780@dominikbrodowski.de> (raw)
In-Reply-To: <8825450.1079962608@d-128-74-92.bootp.Virginia.EDU>
[-- Attachment #1.1: Type: text/plain, Size: 946 bytes --]
On Mon, Mar 22, 2004 at 01:36:48PM -0500, Zhijian Lu wrote:
> Hello,
>
> This may be off the loop. But does anyone know if there are
> any desktop computers with dynamic voltage scaling capacity?
For x86{,_64}: AFAIK there are several choices:
- some x86_64 AMD [server] processors and mainboards support
voltage scaling,
- there are some special mainboards which support Intel Pentium M processors
- the transmeta efficeon CPU supports dynamic voltage scaling without
any operating system interaction
- maybe some others (VIA) which I've missed.
Please note that unless you chose Transmeta CPUs, you also need support from
the operating system to _dynamically_ change the frequency. This should be
implemented in form of a cpufreq governor; some thus patches have been
discussed on this mailing list, none have been in a mergeable state. But you
can find them in the archives, if you look hard :-)
Dominik
[-- Attachment #1.2: Type: application/pgp-signature, Size: 189 bytes --]
[-- Attachment #2: Type: text/plain, Size: 143 bytes --]
_______________________________________________
Cpufreq mailing list
Cpufreq@www.linux.org.uk
http://www.linux.org.uk/mailman/listinfo/cpufreq
next prev parent reply other threads:[~2004-03-22 20:17 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-22 18:36 Desktop with DVS Zhijian Lu
2004-03-22 20:17 ` Dominik Brodowski [this message]
2004-03-29 13:50 ` Bruno Ducrot
2004-04-06 23:42 ` Drew Varner
-- strict thread matches above, loose matches on Subject: below --
2004-06-13 10:39 biciolinux
2004-06-13 17:40 ` Sebastian Witt
2004-06-13 18:56 ` Marcin Kałuża
2004-06-13 20:40 ` Sebastian Witt
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20040322201733.GA9780@dominikbrodowski.de \
--to=linux@dominikbrodowski.de \
--cc=cpufreq@www.linux.org.uk \
--cc=zl4j@cms.mail.virginia.edu \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox