Re: [PATCH] perf stat: fix per-pkg event reporting bug

From: Andi Kleen
Date: Wed Sep 02 2015 - 16:27:02 EST

On Wed, Sep 02, 2015 at 03:17:51PM +0200, Stephane Eranian wrote:
> Per-pkg events need to be captured once per processor
> socket. The code in check_per_pkg() ensures only one
> value per processor package is used. However there is
> a problem with this function in case the first CPU of
> the package does not measure anything for the per-pkg event,
> but other CPUs do.

I've seen a similar(?) bug with -C and --per-core combined.
Some logical threads are not correctly accounted there either.
Do you think that's another instance of such a bug?

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