Messages in this thread | | | Date | Fri, 15 Nov 2013 11:05:06 +0100 | From | Peter Zijlstra <> | Subject | Re: [BUG] perf stat: explicit grouping yields unexpected results |
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On Fri, Nov 15, 2013 at 07:34:57AM +0100, Ingo Molnar wrote: > Btw., does the kernel side currently support discovery of such > impossible group scheduling constraints at group setup time?
Up to a point.
> If not > then it probably should and it should reject them straight away.
We do I think, for the case where its obvious it can never fit.
That said, if you have a pinned cpu event, it all comes apart.
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