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.
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. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
