On Sat, 2015-04-04 at 15:29 +0530, Preeti U Murthy wrote: > Solution 1: As exists in the mainline > Solution 2: nohz_idle_balance(); rebalance_domains() on the ILB CPU > Solution 3: Above patch. > > I observe that Solution 3 is not as aggressive in spreading load as > Solution 2. With Solution 2, the load gets spread within the first 3-4 > seconds,
hmm, so 3-4 seconds still sounds like a long time. > while with Solution3, the load gets spread within the first 6-7 > seconds. I think this is because, the above patch decides to further > nohz_idle_load_balance() based on the load on the current ILB CPU which > has most likely pulled just one task. Okay, so perhaps we can also try continuing nohz load balancing if we find that there are overloaded CPUs in the system. -- 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/
