Changelog v1->v2: dropped slot_hint and wrapper. As Avi said, get_user() alone achieved most of the improvement. Before 2.994 us | paging64_walk_addr_generic(); 1.480 us | paging64_walk_addr_generic(); 0.996 us | paging64_walk_addr_generic(); 1.108 us | paging64_walk_addr_generic(); 0.962 us | paging64_walk_addr_generic(); 2.063 us | paging64_walk_addr_generic(); 1.379 us | paging64_walk_addr_generic(); 0.962 us | paging64_walk_addr_generic(); 1.085 us | paging64_walk_addr_generic(); 2.965 us | paging64_walk_addr_generic(); After 2.264 us | paging64_walk_addr_generic(); 1.079 us | paging64_walk_addr_generic(); 0.648 us | paging64_walk_addr_generic(); 0.703 us | paging64_walk_addr_generic(); 0.635 us | paging64_walk_addr_generic(); 0.869 us | paging64_walk_addr_generic(); 0.529 us | paging64_walk_addr_generic(); 0.702 us | paging64_walk_addr_generic(); 0.529 us | paging64_walk_addr_generic(); 0.691 us | paging64_walk_addr_generic(); A little surprise was that the original version itself was a bit fater than before. But I tested this with today's latest kvm.git and some parts had been changed, so it could be. Anyway, this patch improves by some degree! Takuya -- 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
