Re: [patch 08/15] sched: throttle cfs_rq entities which exceedtheir local runtime

[Peter Zijlstra]

On Tue, 2011-05-03 at 02:28 -0700, Paul Turner wrote:
> +       /*
> +        * it's possible active load balance has forced a throttled cfs_rq to
> +        * run again, we don't want to re-throttled in this case.
> +        */
> +       if (cfs_rq_throttled(cfs_rq))
> +               return; 

expand a little on this, why would load-balancing interact with a
throttled group? load-balancing should fully ignore these things,
they're not runnable after all.
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