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SubjectRe: sched: Avoid SMT siblings in select_idle_sibling() if possible
* Ingo Molnar <> [2012-03-06 10:14:11]:

> Does volanomark still do yield(),

I could count 3.5M yield() calls across 16 cpus over a period of 5.4sec,
so yes it does seem to make very good use of yeild()!

> thereby invoking a random
> shuffle of thread scheduling and pretty much voluntarily
> ejecting itself from most scheduler performance considerations?
> If it uses a real locking primitive such as futexes then its
> performance matters more.

Good point ..I will gather more data for additional benchmarks
(tbench, sysbench) and post shortly.

- vatsa

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