Heads up: cpuspeed removed from f16+

[Petr Sabata]

On Tue, Jul 19, 2011 at 10:59:30AM -0400, Jaroslav Skarvada wrote:
> ----- Original Message -----
> > To avoid some confusion:
> > 
> > I removed cpuspeed from Rawhide about 10 days ago. It no longer serves
> > any
> > purpose in Fedora and has been effectively replaced by kernel cpufreq
> > stack.
> > 
> > All cpufreq modules should now be built-in, with ondemand being the
> > default
> > governor in Fedora.
> > 
> > In case you would to use a different governor and/or specific
> > frequency, try the
> > new cpupower.service (provieded by cpupowerutils). Most people
> > shouldn't need
> > this, though.
> > 
> > See https://bugzilla.redhat.com/show_bug.cgi?id=713572 for more info.
> > 
> > Regards,
> > --
> > # Petr Sabata
> > 
> > --
> > devel mailing list
> > devel at lists.fedoraproject.org
> > https://admin.fedoraproject.org/mailman/listinfo/devel
> 
> Sad that the daemon gone. It was able to dynamically switch speed
> (and save power) on systems that have CPUs with high transition 
> latency (e.g. old P4, some Atoms, etc.). On such systems the
> ondemand governor cannot be used and if you want to save power
> you need to change the freq from userspace (of course, not too 
> frequently). It was not the best solution, but it worked, e.g.:
> http://bugzilla.redhat.com/show_bug.cgi?id=697273
> Is there any replacement?

In my opinion, the proper way to deal with this is to fix kernel drivers
and/or governors, not some special userspace hacks.
https://bugzilla.redhat.com/show_bug.cgi?id=713572#c9

-- 
# Petr Sabata
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