Re: [PATCH 1/5] perf: Disallow mmap() on per-task inherited events

From: Frederic Weisbecker
Date: Wed May 19 2010 - 03:19:10 EST

On Tue, May 18, 2010 at 03:32:59PM +0200, Peter Zijlstra wrote:
> Since we now have working per-task-per-cpu events for a while,
> disallow mmap() on per-task inherited events. Those things were
> a performance problem anyway, and doing away with it allows
> us to optimize the buffer somewhat by assuming there is only a single
> writer.
> Signed-off-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
> ---

That is a very good news.

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