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SubjectRe: [PATCH-tip v5 17/21] TP-futex: Group readers together in wait queue
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On Fri, 03 Feb 2017 13:03:50 -0500, Waiman Long said:

> On a 2-socket 36-core E5-2699 v3 system (HT off) running on a 4.10

> WW futex TP futex Glibc
> -------- -------- -----
> Total locking ops 35,707,234 58,645,434 10,930,422
> Per-thread avg/sec 99,149 162,887 30,362
> Per-thread min/sec 93,190 38,641 29,872
> Per-thread max/sec 104,213 225,983 30,708

Do we understand where the 38K number came from? I'm a bit concerned that the
min-to-max has such a large dispersion compared to all the other numbers. Was
that a worst-case issue, and is the worst-case something likely to happen in
production, or requires special effort to trigger?

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