* Nick Piggin <[email protected]> wrote:
> Chen, Kenneth W wrote:
> >Nick Piggin wrote on Thursday, July 28, 2005 7:01 PM
>
> >This clearly outlines an issue with the implementation. Optimize for one
> >type of workload has detrimental effect on another workload and vice versa.
> >
>
> Yep. That comes up fairly regularly when tuning the scheduler :(
in this particular case we can clearly separate the two workloads
though: CPU-overload (Ken's benchmark) vs. half-load (3-task tbench). So
by checking for migration target/source idleness we can have a hard
separator for wakeup balancing. (whether it works out for both types of
workloads remains to be seen)
Ingo
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