Re: [RFC PATCH 2/2] perf stat: Use event group to simulate PMI on PMI-less hardware counter

On Wed, Nov 10, 2010 at 04:08:43PM +0100, Peter Zijlstra wrote:

quoted text

> 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.

My work in progress is here, http://git.kernel.org/?p=linux/kernel/git/mfleming/sh-2.6.git;a=commitdiff;h=68f95e18c... I'll try get this submitted by the beginning of next week. --

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