Messages in this thread | | | Date | Tue, 6 Mar 2012 15:33:36 +0530 | From | Srivatsa Vaddagiri <> | Subject | Re: sched: Avoid SMT siblings in select_idle_sibling() if possible |
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* Ingo Molnar <mingo@elte.hu> [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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