Messages in this thread | | | Date | Tue, 27 Nov 2012 09:11:34 +0800 | From | Alex Shi <> | Subject | Re: [RFC PATCH 0/5] enable runnable load avg in load balance |
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On 11/27/2012 03:03 AM, Benjamin Segall wrote: > So, I've been trying out using the runnable averages for load balance in > a few ways, but haven't actually gotten any improvement on the > benchmarks I've run. I'll post my patches once I have the numbers down, > but it's generally been about half a percent to 1% worse on the tests > I've tried.
Did you tried this rfc patch? and what's the result of it? :)
> > The basic idea is to use (cfs_rq->runnable_load_avg + > cfs_rq->blocked_load_avg) (which should be equivalent to doing > load_avg_contrib on the rq) for cfs_rqs and possibly the rq, and > p->se.load.weight * p->se.avg.runnable_avg_sum / period for tasks. > > I have not yet tried including wake_affine, so this has just involved > h_load (task_load_down and task_h_load), as that makes everything > (besides wake_affine) be based on either the new averages or the > rq->cpu_load averages. >
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