Re: [RFCv2 0/8] perf tool: Add new event group management

From: Peter Zijlstra
Date: Tue May 29 2012 - 04:39:25 EST


On Sun, 2012-05-27 at 03:56 -0400, Ulrich Drepper wrote:
> Therefore it is important to recognize when two groups
> can be scheduled concurrently even if the total number of counters
> needed would be high but due to intersections it is possible.

We currently don't do counter multiplexing like that. I'd love to see a
readable and efficient implementation of that though, preferably in the
core and not the arch code.
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