On Wed, Jun 30, 2010 at 03:34:14PM -0400, Ted Unangst wrote:
> On Wed, Jun 30, 2010 at 3:23 PM, Luis Henriques <luis.hen...@gmail.com>
> wrote:
> > Probably, a silly question, but here it goes:
> >
> > With this patch, I will not be able to set the perflevel to, say, 50% and
> > keep the system using that performance level forever.  Is this correct?
> > I guess that with current apmd we are able to do this.
> >
> > If both of these two statements are true (maybe they are not!), we should
> > also have a mechanism to disable this code (either at runtime or compile
> > time).
> 
> You are correct, but I wonder why you would ever want a machine only
> running at 50% all the time.  When it is busy, it's still slow, and
> when it's not, it's still using power.

This only makes sense once you think of it or have it mentioned to you,
as I well know. ;-)

> We are thinking that states other than 0 and 100 are not very useful.

This is true when you have a bucket of work to do, like compiling a
kernel or something. It's less true when you are playing media, where a
20 minute video takes 20 minutes regardless of cpu at 100% or cpu at
30%.

> But this is not the final diff.  It will probably have some means of
> control eventually, until then, it'd be nice if people evaluated if
> this meets their needs.

:)

-- 
Darrin Chandler            |  Phoenix BSD User Group  |  MetaBUG
dwchand...@stilyagin.com   |  http://phxbug.org/      |  http://metabug.org/
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