Re: [Qemu-devel] [PATCHv4 4/6] ui/vnc: optimize clearing in find_and_clear_dirty_height()

2014-01-08 Thread Wenchao Xia
Reviewed-by: Wenchao Xia

[Qemu-devel] [PATCHv4 4/6] ui/vnc: optimize clearing in find_and_clear_dirty_height()

2014-01-08 Thread Peter Lieven
The following artifical test (just the bitmap operation part) running vnc_update_client 65536 times on a 2560x2048 surface illustrates the performance difference: All bits clean - vnc_update_client_new: 0.07 secs vnc_update_client_new2: 0.07 secs vnc_update_client