That is just a starting point of my optimization. 4.3.0-52 release should be more impressive :)
Takuma Murakami > Takuma Murakami made an improvement to the multi-window code in the > 4.3.0-51 release that restricts redraws to only the changed portions of > windows. My earlier review of the original code made me believe that > the code was redrawing the entire contents of each window, regardless of > whether they had changed any or not, so I believe that Takuma's change > is correct. In addition, I tested Takuma's change on a program that was > notorious for exhibiting bad performance in multi-window mode: xfig. > 4.3.0-50 requires 7 seconds to start xfig and there is lots of screen > flashing during that startup process; other X Servers on Windows did not > have this problem. 4.3.0-51 takes 2 seconds to start xfig and there is > no longer any screen flashing. > > Takuma's changes are great! :) > > Harold