Messages in this thread | | | Subject | Re: [RFC PATCH 2/2] perf stat: Use event group to simulate PMI on PMI-less hardware counter | From | Peter Zijlstra <> | Date | Wed, 10 Nov 2010 16:08:43 +0100 |
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On Wed, 2010-11-10 at 23:06 +0800, Lin Ming wrote: > > The proposed idea was to group with a software hrtimer-based event > > and use the hrtimer's sample to read the hardware group sibling using > > PERF_SAMPLE_READ. > > So this is usefull in perf top/record on PMI-less counter?
Correct, Matt was implementing this.
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