Re: Call function on all processors
Re: Call function on all processors
On Fri, Nov 17, 2006 at 03:40:54AM -0800, Michael Smith wrote:
> Paul Litvak wrote:
> >How would you call a function on all cpus from a kernel extension?
>
> I'm curious; why would you want to do this?
>
> The only reasons I can think of have to do with changing per-CPU (vs.
> per context) state, and the OS owns all of that state.
For one, I'm guessing this is the mechanism that CHUD tools uses to
get the performance counters out of all the CPUs. But I could be
wrong.
I suppose any other per-CPU state would be fair game - SpeedStep
state, thermal state... I can see why some of that might be
interesting.
--
stix
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