On 12/18/2011 04:59 PM, Avi Kivity wrote: > On 12/16/2011 12:16 PM, Xiao Guangrong wrote: >> unsync_child_bitmap is used to record which spte has unsync page or unsync >> children, we can set a free bit in the spte instead of it >> > > unsync_child_bitmap takes one cacheline; the shadow page table takes > 64. This will make unsync/resync much more expensive. > Indeed, need more thing about this patch... > I suggest to put unsync_child_bitmap at the end (together with > unsync_children) and simply not allocate it when unneeded (have two > kmem_caches for the two cases). > > Good point, thanks Avi. -- 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
