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    SubjectRe: [PATCH] perfcounters: Make s/w counters in a group only count when group is on
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    On Fri, 2009-03-13 at 13:44 +0100, Peter Zijlstra wrote:

    > The same for task migration, most migrations happen when they are in
    > fact running, so there too we can account the migration either before we
    > rip it off the src cpu, or after we place it on the dst cpu.

    Right, I got confused between being on the cpu and having ->state = R.

    Migrations are the odd one out indeed, but I'd rather fudge a little
    with the migration counter itself than have this weird asymmetry.



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