On Thu, 2012-07-26 at 13:27 +0800, Alex Shi wrote: > if (affine_sd) { > - if (cpu == prev_cpu || wake_affine(affine_sd, p, sync)) > + if (wake_affine(affine_sd, p, sync)) > prev_cpu = cpu; > > new_cpu = select_idle_sibling(p, prev_cpu);
Hm, if cpu == prev_cpu, asking wake_affine() if it's ok to put wakee back where it came from is wasted cycles.. that's where the task is headed regardless of reply. -Mike -- 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/