Messages in this thread | | | Date | Wed, 2 Sep 2015 13:26:57 -0700 | From | Andi Kleen <> | Subject | Re: [PATCH] perf stat: fix per-pkg event reporting bug |
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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?
-Andi
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