Re: [PATCH 1/2] perf: fix PERF_EVENT_IOC_PERIOD to force-reset theperiod

[Vince Weaver]

On Wed, 27 Nov 2013, Will Deacon wrote:

> Vince Weaver reports that, on all architectures apart from ARM,
> PERF_EVENT_IOC_PERIOD doesn't actually update the period until the next
> event fires. This is counter-intuitive behaviour and is better dealt
> with in the core code.

To be fair, it was Andreas Sandberg <andreas.sandberg@xxxxxxxx>
who noticed this issue and reported it to me (in the context of 
the manpage being wrong).  I just passed it on to the linux-kernel list.

Vince
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