All of lore.kernel.org
 help / color / mirror / Atom feed
From: Jon Loeliger <jdl@jdl.com>
To: matt@genesi-usa.com
Cc: linuxppc-dev@ozlabs.org
Subject: Re: cpu power "management" for non-dfs chips with no pmu (for instance, 750cxe and mpc7447 in pegasos)
Date: Fri, 23 Jun 2006 09:26:57 -0500	[thread overview]
Message-ID: <E1Ftmcb-0007rG-QS@jdl.com> (raw)
In-Reply-To: Your message of "Fri, 23 Jun 2006 08:58:56 CDT." <01ca01c696cd$2e453f30$99dfdfdf@bakuhatsu.net>

So, like, the other day "Matt Sealey" mumbled:
> 
> I have nothing real to contribute other than I would like to see it :)

Disbelief.  :-)

> Before I asked I checked Google (as is expected of anyone these days)
> and found some discussions on debian-powerpc from 2002 but nobody
> really did anything and nothing really came of it. I know 4 years later
> all we have is powernowd which pokes up cpufreq which only supports
> DFS and certain kinds of Mac PMU. 

Which is why it is all being revitalized now... :-)
There was a mini symposium a couple months ago that started
a few working groups to help kick start this back into viability.

> ICTC is such a simple thing to support and you can slow down the CPU
> pretty comprehensively (from halving to 255x in theory) with an on and
> off flag. I am surprised nobody implemented a cpufreq governer even if
> it is totally useless and gives no perceivable benefits..

See?  You _are_ contributing already.  I encourage
you to hit the linux-pm@lists.osdl.org list for a spell!

You could start here:
	https://lists.osdl.org/mailman/listinfo/linux-pm

Thanks,
jdl

  reply	other threads:[~2006-06-23 14:27 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-06-23 10:43 cpu power "management" for non-dfs chips with no pmu (for instance, 750cxe and mpc7447 in pegasos) Matt Sealey
2006-06-23 13:33 ` Jon Loeliger
2006-06-23 13:58   ` Matt Sealey
2006-06-23 14:26     ` Jon Loeliger [this message]
2006-06-23 14:31       ` Matt Sealey
2006-06-23 14:38       ` Raquel Velasco and Bill Buck
2006-06-23 23:49       ` Guennadi Liakhovetski
2006-06-24 16:16         ` Jon Loeliger
2006-06-24 17:29           ` Guennadi Liakhovetski
2006-06-27 22:47       ` Benjamin Herrenschmidt
2006-06-27 22:43 ` Benjamin Herrenschmidt

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=E1Ftmcb-0007rG-QS@jdl.com \
    --to=jdl@jdl.com \
    --cc=linuxppc-dev@ozlabs.org \
    --cc=matt@genesi-usa.com \
    /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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.