On Fri, 2013-02-22 at 10:36 +0800, Michael Wang wrote: > According to my understanding, in the old world, wake_affine() will > only > be used if curr_cpu and prev_cpu share cache, which means they are in > one package, whatever search in llc sd of curr_cpu or prev_cpu, we > won't > have the chance to spread the task out of that package.
Nah, look at where SD_WAKE_AFFINE is set. Only 'remote/big' NUMA domains don't have it set, but 'small' NUMA systems will have it set over the entire domain tree. -- 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/