Messages in this thread | | | Date | Thu, 10 Jul 2014 13:18:33 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH v3 08/12] sched: move cfs task on a CPU with higher capacity |
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On Mon, Jun 30, 2014 at 06:05:39PM +0200, Vincent Guittot wrote: > + /* > + * If the CPUs share their cache and the src_cpu's capacity is > + * reduced because of other sched_class or IRQs, we trig an > + * active balance to move the task > + */ > + if ((sd->flags & SD_SHARE_PKG_RESOURCES) > + && ((capacity_orig_of(src_cpu) * 100) > (capacity_of(src_cpu) * > + sd->imbalance_pct))) > return 1;
Why is this tied to shared caches?
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