Re: [RFC PATCHSET] sched,perf: unify tracers in sched and move perf on top of TP

Avi Kivity
2010-05-05T12:35:04Z

On 05/05/2010 02:38 PM, Peter Zijlstra wrote:
> As it stands I'd argue to simply drop this whole idea. The SCHED_EVENT()
> thing doesn't look like its worth the obfuscation and I'm very much
> opposed to making perf and sched_notifiers rely on tracepoints.
>

We can make perf rely on sched_notifiers, I think it's exactly the same
case as kvm - extra cpu state that needs switching at context switch
time. We could also make fpu switching use sched_notifiers, but that's
pushing it a bit.

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