Re: [RFC][PATCH] perf_events, x86: PEBS support

From: Peter Zijlstra
Date: Wed Feb 03 2010 - 18:50:28 EST


On Wed, 2010-02-03 at 15:40 +0100, Peter Zijlstra wrote:
>
> If only they would reset the counter on overflow instead of on record,
> that would solve quite a few issues I imagine.

So I tried enabling the regular PMC overflow interrupt and reprogramming
the counter from that, but touching the counter seems to destroy the
PEBS assist, so much for that idea.

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