Hi Joel,

> Fresh news, it looks like the realtime tasks as for example Jamin are
> not taken in account to compute the cpu load. 
> With non rt tasks the frequency changes are all right.

With earlier kernels, I have tried using frequency scaling at the same 
time as Jack. When the CPU suddenly dropped to half-speed, Jack was 
unable to cope and produced lots of xruns.

So does the CPU frequency drop on your laptop when RT tasks are running? 
If so, we should take this problem upstream to Ingo Molnar. If not, then 
that's a pretty cool feature, because it means you can potentially 
extend battery life *and* keep your audio glitch-free.

Cheers!

Daniel

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