Re: [RFC PATCH] perf: Add PERF_RECORD_SWITCH to indicate context switches

[David Ahern]

On 6/11/15 8:15 AM, Peter Zijlstra wrote:
> > This new PERF_RECORD_SWITCH event does not have those problems
> > and it also has a couple of other small advantages. It is
> > easier to use because it is an auxiliary event (like mmap,
> > comm and task events) which can be enabled by setting a single
> > bit. It is smaller than sched:sched_switch and easier to parse.
>
> Right, so the one wee problem I have is that this only provides sched_in
> data, I imagine people might be interested in sched_out as well.

Yes and with the option of collecting callchains for sched_out.

David
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