[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [Xen-devel] Optimize credit scheduler __runq_tickle to reduce IPIs
Jan Beulich wrote: >>>> "Wei, Gang" <gang.wei@xxxxxxxxx> 19.03.10 09:22 >>> >> 2. if first_cpu() was used as the way to choose the target among all >> possible idle cpus, will it cause overall unbalanced cpu >> utilization? i.e. cpu 0 > cpu 1 > ... > cpu N > > This can be easily avoided by using cycle_cpu() and tracking the last > used CPU on e.g. a per-pCPU basis (similar to idle_bias used in > _csched_cpu_pick()). Good sugguestion, thanks. Jimmy _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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