Xiao Guangrong wrote: > While we mark the parent's unsync_child_bitmap, if the parent is already > unsynced, it no need walk it's parent, it can reduce some unnecessary > workload > Hi Avi, Marcelo, About two months ago, i have sent this optimization, it just a little performance improved (~0.5%) at that time, now, we allow more page become unsync, this path is called higher frequency, during my test, kernelbench show the performance improved ~2%, so, i think we may apply it now :-) -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
