Messages in this thread | | | Date | Wed, 27 Nov 2013 10:15:02 -0500 (EST) | From | Vince Weaver <> | Subject | Re: [PATCH 1/2] perf: fix PERF_EVENT_IOC_PERIOD to force-reset the period |
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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@it.uu.se> 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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