[Beowulf] Turboboost/IDA on Nehalem

[Karsten Weiss]

On Mon, 21 Jun 2010, James Braid wrote:

> > What's a good way to confirm if  my procs are actually in a turbo
> > state at a given point of time. It doesn't get reported back through
> > the usual BIOS channels does it?
> 
> turbostat from pmtools is a great little tool for seeing this type of info.
> 
> http://kernel.org/pub/linux/kernel/people/lenb/acpi/utils/
> 
> FWIW acpi_cpufreq doesn't load on any of our Nehalem based systems
> (HP, Dell, running on Fedora 12) - but turbo boost and all the other
> power efficiency features work fine as far as I can tell.

Another alternative is i7z: http://code.google.com/p/i7z/

-- 
Karsten Weiss / science + computing ag