Since the project needs to render a large number of characters on the same screen, I needed to improve Flash Player’s rendering performance. This afternoon I ran a rendering performance test and polished up the bitmap optimization library I wrote last year. Screen size 2880*2880500 vector character animation MCs (nested 2 levels deep), looping playbackNone of them removeChild off-screen regionsAll tests run with the Flash Player SA 10.0 debug build No optimization, straight addChild fps=4, CPU maxed out, memory 18M~29M Added cacheAsBitmap FPS=1, CPU maxed out, memory 156~196M, memory keeps fluctuating