Messages in this thread | | | Subject | Re: [PATCH 2/5] perf, x86: Enable PDIR precise instruction profiling on IvyBridge | From | Peter Zijlstra <> | Date | Mon, 02 Jul 2012 22:22:20 +0200 |
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On Mon, 2012-07-02 at 21:57 +0200, Andi Kleen wrote: > > Already told you no. > > No on what? You don't want PDIR mode? Or you don't like something > with my implementation?
Both are crap.
If anything its an PEBS alias, we have infrastructure for that, yet you invent new things.
You do random things like only :pp for no apparent reason.
PDIR is only supported on a single counter, regular PEBS 'instructions' events allow for 4+ counters. Therefore a direct substitution is not valid.
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