Heads up: cpuspeed removed from f16+
Jaroslav Skarvada
jskarvad at redhat.com
Tue Jul 19 14:59:30 UTC 2011
----- 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?
regards
Jaroslav
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