Those are really compelling numbers for ts_paint / startup_about_home_paint! I believe both tresize and TART work by putting the refresh driver into ASAP mode (paint and composite as soon as possible, rather than waiting for the 16ms vsync), and then measuring the time it takes to paint each frame. So it sounds to me like perhaps painting the window has gotten slightly more expensive. I opened up the raw logs of two randomly selected runs on Win 10 x64 shippable. Here is the run data from one cycle for the base and patch case:: **Base** ``` [task 2019-10-02T23:22:25.910Z] 23:22:25 INFO - PID 2336 | simple-open-DPI1.raw.TART: 18.0 2.5 9.1 3.6 1.3 1.8 1.0 1.4 0.9 0.8 1.0 1.0 1.0 0.9 1.1 2.1 1.0 1.1 1.6 1.4 1.1 1.2 1.0 1.6 1.2 1.2 1.1 1.3 4.4 2.1 1.2 0.9 1.1 1.2 1.4 1.4 1.2 1.3 1.3 1.7 1.4 1.1 1.2 1.4 1.2 1.2 1.3 1.5 1.1 1.1 1.3 1.5 1.2 1.2 1.3 1.5 1.2 1.1 1.1 1.0 1.0 1.1 1.1 1.0 1.5 1.1 1.2 1.2 1.3 1.2 1.1 1.2 [task 2019-10-02T23:22:25.911Z] 23:22:25 INFO - PID 2336 | simple-open-DPI1.half.TART: 1.2 [task 2019-10-02T23:22:25.911Z] 23:22:25 INFO - PID 2336 | simple-open-DPI1.all.TART: 1.7 [task 2019-10-02T23:22:25.911Z] 23:22:25 INFO - PID 2336 | simple-open-DPI1.error.TART: 20.3 [task 2019-10-02T23:22:25.911Z] 23:22:25 INFO - PID 2336 | simple-close-DPI1.raw.TART: 9.1 1.0 8.1 1.1 0.7 0.6 0.4 0.5 0.4 0.4 0.4 0.3 0.4 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.4 0.4 0.3 0.4 0.3 0.5 0.3 0.8 0.3 0.4 0.3 0.3 0.3 0.5 0.7 0.4 0.3 0.5 0.4 0.4 0.3 0.4 0.3 0.5 0.3 0.4 0.3 0.5 0.3 0.4 0.3 0.4 0.3 0.5 0.3 0.4 0.3 0.4 0.5 0.4 0.4 0.6 0.4 0.4 0.3 0.4 0.3 0.4 0.4 0.3 0.3 0.5 0.7 0.4 0.3 0.4 0.3 0.3 0.4 0.3 0.4 0.3 0.4 0.3 0.4 0.3 0.4 0.4 0.4 0.4 0.4 0.2 0.3 0.4 0.3 0.4 0.4 0.4 0.4 0.4 0.3 0.4 0.5 0.7 0.4 0.5 0.4 0.4 0.3 0.5 0.4 0.4 0.6 0.3 0.4 0.5 0.4 0.4 0.3 0.4 0.4 0.3 0.4 0.4 0.4 0.4 0.3 0.4 0.3 0.4 0.4 0.4 0.3 0.4 0.3 0.4 0.3 0.5 0.3 0.4 0.3 0.4 0.4 0.4 0.4 0.4 0.3 0.4 0.3 0.4 0.3 0.8 0.3 0.4 0.4 0.4 0.4 0.5 0.3 0.5 0.3 0.5 0.3 0.4 0.4 0.5 0.3 0.4 0.4 0.5 0.3 0.4 0.3 0.4 0.3 0.4 0.4 0.5 0.3 0.4 0.4 0.4 0.3 0.4 0.3 0.3 0.4 0.4 0.3 0.4 0.7 0.5 0.3 0.5 0.3 0.4 0.3 0.5 0.4 0.4 0.3 0.4 0.3 0.4 0.3 0.4 0.4 0.3 0.3 0.4 0.3 0.4 0.3 0.4 0.3 0.4 0.4 0.4 0.3 0.4 0.4 0.4 0.4 0.4 0.3 0.4 0.4 0.4 0.4 0.4 0.6 0.3 0.3 0.4 [task 2019-10-02T23:22:25.911Z] 23:22:25 INFO - PID 2336 | simple-close-DPI1.half.TART: 0.4 [task 2019-10-02T23:22:25.911Z] 23:22:25 INFO - PID 2336 | simple-close-DPI1.all.TART: 0.5 [task 2019-10-02T23:22:25.912Z] 23:22:25 INFO - PID 2336 | simple-close-DPI1.error.TART: 10.1 [task 2019-10-02T23:22:25.912Z] 23:22:25 INFO - PID 2336 | icon-open-DPI1.raw.TART: 17.1 3.1 3.5 9.4 2.5 16.0 3.3 3.9 3.8 1.9 1.2 1.5 1.6 1.2 1.3 1.3 1.5 1.5 1.3 1.4 1.5 1.2 1.4 1.1 1.1 1.0 1.1 1.3 1.1 1.0 1.0 1.0 1.0 1.1 1.0 1.0 1.1 1.2 1.2 1.3 1.3 1.9 1.5 1.4 1.2 1.3 1.5 1.3 1.2 1.4 1.3 1.3 1.4 1.2 [task 2019-10-02T23:22:25.912Z] 23:22:25 INFO - PID 2336 | icon-open-DPI1.half.TART: 1.3 [task 2019-10-02T23:22:25.912Z] 23:22:25 INFO - PID 2336 | icon-open-DPI1.all.TART: 2.2 [task 2019-10-02T23:22:25.912Z] 23:22:25 INFO - PID 2336 | icon-open-DPI1.error.TART: 20.6 [task 2019-10-02T23:22:25.912Z] 23:22:25 INFO - PID 2336 | icon-close-DPI1.raw.TART: 8.6 1.1 9.1 1.0 1.0 0.9 1.2 0.4 0.5 0.4 0.3 0.7 0.4 0.3 0.5 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.3 0.3 0.2 0.3 0.2 0.2 0.3 0.3 0.2 0.3 0.2 0.2 0.3 0.3 0.4 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.6 0.3 0.5 0.3 0.3 0.4 0.3 0.3 0.3 0.4 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.4 0.3 0.4 0.2 0.3 0.3 0.4 0.4 0.4 0.3 0.6 0.4 0.4 0.5 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.5 0.4 0.3 0.2 0.2 0.2 0.2 0.3 0.3 0.2 0.3 0.2 0.3 0.2 0.3 0.3 0.3 0.2 0.4 0.3 0.3 0.3 0.2 0.2 0.3 0.2 0.3 0.3 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.4 0.2 0.4 0.3 0.4 0.4 0.4 0.4 0.4 0.8 0.4 0.5 0.4 0.5 0.3 0.5 0.4 0.4 0.3 0.4 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.4 0.3 0.2 0.3 0.3 0.2 0.4 0.3 0.5 0.3 0.4 0.3 0.3 0.4 0.3 0.5 0.3 0.4 0.4 0.3 0.3 0.3 0.3 0.6 0.3 0.4 0.3 0.5 0.4 0.3 0.4 0.3 0.4 0.3 0.3 0.4 0.3 0.3 0.4 0.2 0.4 0.3 0.2 0.3 0.3 0.3 0.3 0.2 0.3 0.3 0.3 0.3 0.2 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.4 0.6 0.4 0.3 0.4 0.4 0.3 0.3 0.4 0.3 0.4 0.3 0.3 0.4 0.3 0.4 0.6 0.4 0.5 0.4 0.5 0.3 0.4 0.2 0.3 0.3 0.3 0.2 0.4 [task 2019-10-02T23:22:25.912Z] 23:22:25 INFO - PID 2336 | icon-close-DPI1.half.TART: 0.3 [task 2019-10-02T23:22:25.912Z] 23:22:25 INFO - PID 2336 | icon-close-DPI1.all.TART: 0.4 [task 2019-10-02T23:22:25.913Z] 23:22:25 INFO - PID 2336 | icon-close-DPI1.error.TART: 10.2 [task 2019-10-02T23:22:25.913Z] 23:22:25 INFO - PID 2336 | icon-open-DPI2.raw.TART: 16.3 3.6 3.1 7.8 2.3 13.4 5.7 2.7 1.9 1.7 1.4 1.3 1.8 1.2 1.3 1.3 1.4 1.2 1.2 1.4 1.4 1.4 1.2 1.7 1.0 1.3 1.4 1.3 1.3 1.3 1.5 1.2 1.2 1.3 1.3 1.7 1.4 1.3 1.4 1.2 1.2 1.3 1.5 1.7 1.4 [task 2019-10-02T23:22:25.913Z] 23:22:25 INFO - PID 2336 | icon-open-DPI2.half.TART: 1.4 [task 2019-10-02T23:22:25.913Z] 23:22:25 INFO - PID 2336 | icon-open-DPI2.all.TART: 2.3 [task 2019-10-02T23:22:25.913Z] 23:22:25 INFO - PID 2336 | icon-open-DPI2.error.TART: 19.7 [task 2019-10-02T23:22:25.913Z] 23:22:25 INFO - PID 2336 | icon-close-DPI2.raw.TART: 9.6 9.7 1.0 0.5 0.8 0.4 0.5 0.3 0.4 0.4 0.4 0.3 0.4 0.4 0.5 0.3 0.3 0.5 0.3 0.4 0.4 0.3 0.3 0.4 0.4 0.3 0.4 0.4 0.7 0.3 0.4 0.3 0.3 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.5 0.3 0.4 0.5 0.5 0.5 0.4 0.4 0.7 0.7 0.3 0.5 0.4 0.4 0.3 0.4 0.4 0.3 0.4 0.4 0.4 0.5 0.4 0.5 0.3 0.7 0.3 0.3 0.4 0.3 0.3 0.4 0.4 0.6 0.5 0.6 0.5 0.3 0.4 0.3 0.4 0.4 0.6 0.5 0.5 0.3 0.4 0.5 0.3 0.4 0.5 0.5 0.3 0.5 0.3 0.4 0.4 0.7 0.5 0.5 0.6 0.4 0.4 0.3 0.5 0.5 0.4 0.7 0.3 0.5 0.4 0.4 0.4 0.3 0.4 0.4 0.5 0.5 0.6 0.4 0.4 0.3 0.4 0.3 0.3 0.3 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 0.4 0.8 0.3 0.5 0.2 0.4 0.3 0.3 0.5 0.5 0.3 0.4 0.3 0.4 0.3 0.4 0.3 0.4 0.3 0.3 0.4 0.4 0.5 0.3 0.4 0.3 0.4 0.4 0.5 0.4 0.5 0.3 0.5 0.4 0.5 0.4 0.4 0.4 0.4 0.4 0.6 0.4 0.3 0.3 0.5 0.5 0.5 0.3 0.5 0.3 0.5 0.4 0.7 0.3 0.5 0.3 0.6 0.3 0.5 0.3 0.5 0.4 0.6 0.6 0.6 0.4 0.5 0.3 0.4 0.3 0.5 0.4 0.5 0.3 0.7 0.4 0.5 0.7 0.4 0.4 0.5 0.3 0.4 0.3 0.3 0.2 [task 2019-10-02T23:22:25.913Z] 23:22:25 INFO - PID 2336 | icon-close-DPI2.half.TART: 0.4 [task 2019-10-02T23:22:25.914Z] 23:22:25 INFO - PID 2336 | icon-close-DPI2.all.TART: 0.5 [task 2019-10-02T23:22:25.914Z] 23:22:25 INFO - PID 2336 | icon-close-DPI2.error.TART: 10.8 [task 2019-10-02T23:22:25.914Z] 23:22:25 INFO - PID 2336 | iconFade-close-DPI2.raw.TART: 1.8 3.1 0.6 0.7 0.5 0.8 0.7 0.7 0.7 0.6 0.7 0.8 0.7 0.9 0.7 0.8 0.7 0.7 0.9 0.6 0.9 0.5 0.5 0.5 0.5 0.5 0.6 0.5 0.6 0.5 0.5 0.6 0.5 0.5 0.5 0.5 0.6 0.5 0.5 0.6 0.7 0.6 0.6 0.7 0.7 0.6 1.1 0.6 0.6 0.7 0.7 0.7 0.6 0.6 0.7 0.6 0.7 0.8 0.7 0.7 0.7 0.7 0.6 0.6 0.7 0.6 0.6 0.7 0.8 0.9 0.5 0.6 0.7 0.6 0.7 0.6 0.7 0.6 0.6 0.6 0.6 0.5 0.7 0.7 0.5 0.5 0.7 0.7 0.6 0.6 0.6 0.6 0.6 0.8 0.6 0.6 0.6 0.5 0.6 0.6 0.6 0.6 0.6 0.6 0.5 0.6 0.6 0.6 0.6 0.5 0.6 0.7 0.6 0.5 0.5 0.6 0.6 0.5 0.9 0.5 0.6 0.6 0.6 0.6 0.5 0.8 0.6 0.5 0.6 0.7 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0.5 0.6 0.6 0.7 0.5 0.6 0.8 0.7 0.6 0.6 0.6 0.6 0.5 0.6 0.6 0.6 0.6 0.5 0.6 0.5 0.6 [task 2019-10-02T23:22:25.914Z] 23:22:25 INFO - PID 2336 | iconFade-close-DPI2.half.TART: 0.6 [task 2019-10-02T23:22:25.914Z] 23:22:25 INFO - PID 2336 | iconFade-close-DPI2.all.TART: 0.6 [task 2019-10-02T23:22:25.914Z] 23:22:25 INFO - PID 2336 | iconFade-close-DPI2.error.TART: 2.1 [task 2019-10-02T23:22:25.915Z] 23:22:25 INFO - PID 2336 | iconFade-open-DPI2.raw.TART: 2.5 0.8 1.1 0.8 0.7 0.8 0.8 1.0 0.8 0.9 0.5 0.6 0.6 0.6 0.6 0.6 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.7 1.0 0.7 0.6 0.7 0.7 0.7 0.8 0.7 0.7 0.7 0.7 1.0 0.8 0.8 0.8 0.8 0.9 0.8 1.1 0.8 0.9 0.8 0.9 0.7 0.8 0.8 0.8 0.8 0.8 0.9 0.9 0.9 0.8 0.8 0.9 0.9 1.2 0.8 0.8 0.9 0.9 0.9 0.9 1.1 1.0 1.0 1.0 0.9 1.0 1.0 0.8 1.0 1.2 0.8 0.9 0.9 0.9 0.8 0.9 0.8 0.9 1.0 0.8 1.1 0.9 0.9 0.9 0.9 0.8 1.3 0.9 0.9 0.8 0.8 0.9 0.9 0.8 [task 2019-10-02T23:22:25.915Z] 23:22:25 INFO - PID 2336 | iconFade-open-DPI2.half.TART: 0.9 [task 2019-10-02T23:22:25.915Z] 23:22:25 INFO - PID 2336 | iconFade-open-DPI2.all.TART: 0.8 [task 2019-10-02T23:22:25.915Z] 23:22:25 INFO - PID 2336 | iconFade-open-DPI2.error.TART: 1.8 [task 2019-10-02T23:22:25.915Z] 23:22:25 INFO - PID 2336 | newtab-open-preload-no.raw.TART: 18.0 2.0 4.1 2.9 2.9 1.8 1.3 1.4 1.3 7.4 1.7 4.2 1.6 2.8 1.6 1.5 1.6 1.6 1.6 1.4 1.5 1.5 1.2 1.3 1.4 1.4 1.2 1.8 1.4 1.3 1.3 1.4 1.3 1.2 1.4 1.2 1.3 2.1 1.4 1.0 1.4 1.2 1.6 1.6 1.5 1.4 1.2 1.3 1.7 1.2 1.3 1.4 1.4 1.3 1.3 1.2 1.4 1.6 1.3 1.7 1.6 [task 2019-10-02T23:22:25.915Z] 23:22:25 INFO - PID 2336 | newtab-open-preload-no.half.TART: 1.4 [task 2019-10-02T23:22:25.915Z] 23:22:25 INFO - PID 2336 | newtab-open-preload-no.all.TART: 2.0 [task 2019-10-02T23:22:25.915Z] 23:22:25 INFO - PID 2336 | newtab-open-preload-no.error.TART: 20.6 [task 2019-10-02T23:22:25.915Z] 23:22:25 INFO - PID 2336 | newtab-open-preload-yes.raw.TART: 16.1 3.2 4.1 1.1 0.8 0.6 0.7 0.9 1.0 1.2 0.8 0.8 0.7 1.1 0.9 0.9 2.0 0.6 1.3 1.1 1.0 0.9 1.0 2.5 1.2 1.5 1.7 1.6 1.6 1.4 1.4 1.2 1.3 1.3 1.3 1.3 1.3 1.3 1.5 1.4 1.7 1.3 1.8 1.4 1.4 1.4 1.5 1.2 1.5 1.6 1.8 1.3 1.3 1.5 1.4 1.4 1.5 1.3 1.2 1.4 1.5 1.3 1.3 1.4 1.4 1.3 1.4 1.4 1.3 1.4 2.0 2.7 1.2 1.1 1.6 [task 2019-10-02T23:22:25.915Z] 23:22:25 INFO - PID 2336 | newtab-open-preload-yes.half.TART: 1.5 [task 2019-10-02T23:22:25.915Z] 23:22:25 INFO - PID 2336 | newtab-open-preload-yes.all.TART: 1.6 [task 2019-10-02T23:22:25.916Z] 23:22:25 INFO - PID 2336 | newtab-open-preload-yes.error.TART: 21.4 ``` **Patch** ``` [task 2019-10-10T07:01:31.009Z] 07:01:31 INFO - PID 5572 | simple-open-DPI1.raw.TART: 17.8 1.9 9.5 3.6 1.1 1.2 1.6 1.1 1.2 1.2 1.4 1.5 1.6 2.2 1.0 1.2 1.3 1.3 1.2 1.2 1.3 1.3 1.4 1.4 1.1 1.2 1.4 1.3 1.8 1.4 1.2 1.3 1.3 1.2 1.1 1.6 1.0 1.3 1.3 1.3 1.4 1.7 1.2 1.4 1.3 1.4 1.4 1.6 1.4 1.4 1.3 1.6 1.3 3.4 2.1 1.6 1.0 1.3 1.3 2.0 1.5 1.6 1.5 1.5 1.3 1.8 [task 2019-10-10T07:01:31.009Z] 07:01:31 INFO - PID 5572 | simple-open-DPI1.half.TART: 1.5 [task 2019-10-10T07:01:31.010Z] 07:01:31 INFO - PID 5572 | simple-open-DPI1.all.TART: 1.8 [task 2019-10-10T07:01:31.010Z] 07:01:31 INFO - PID 5572 | simple-open-DPI1.error.TART: 20.4 [task 2019-10-10T07:01:31.010Z] 07:01:31 INFO - PID 5572 | simple-close-DPI1.raw.TART: 9.3 1.4 7.4 0.9 0.8 0.4 0.4 0.7 0.4 0.3 0.3 0.3 1.2 0.5 0.3 0.3 0.3 0.3 0.2 0.2 0.3 0.3 0.3 0.3 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.3 0.4 0.3 0.3 0.3 0.4 0.3 0.5 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.4 0.3 0.4 0.4 0.3 0.3 0.7 0.5 0.4 0.8 0.3 0.3 0.4 0.4 0.3 0.4 0.2 0.3 0.4 0.3 0.3 0.3 0.3 0.4 0.3 0.4 0.6 0.4 0.4 0.4 0.5 0.3 0.4 0.3 0.4 0.4 0.4 0.4 0.4 0.5 0.4 0.4 0.4 0.7 0.8 0.6 0.5 0.4 0.4 0.4 0.7 0.5 0.4 0.5 0.4 0.5 0.3 0.3 0.5 0.4 0.4 0.3 0.3 0.3 0.3 0.4 0.3 0.5 0.3 0.3 0.4 0.4 0.4 0.3 0.2 0.5 0.3 0.4 0.3 0.3 0.6 0.3 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.6 0.2 0.4 0.3 0.4 0.4 0.2 0.5 0.3 0.4 0.3 0.4 0.3 0.3 0.5 0.3 0.4 0.4 0.4 0.4 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.6 0.4 0.3 0.3 0.5 0.3 0.4 0.3 0.4 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.5 0.4 0.3 0.4 0.4 0.3 0.4 0.5 0.4 0.5 0.3 0.4 0.4 0.3 0.4 0.3 0.5 0.3 0.4 0.5 0.4 0.7 0.3 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.4 0.3 0.4 0.3 0.4 0.4 0.3 0.4 0.4 0.4 0.4 0.3 0.5 0.8 0.4 0.4 0.4 0.6 0.4 0.5 [task 2019-10-10T07:01:31.010Z] 07:01:31 INFO - PID 5572 | simple-close-DPI1.half.TART: 0.4 [task 2019-10-10T07:01:31.011Z] 07:01:31 INFO - PID 5572 | simple-close-DPI1.all.TART: 0.5 [task 2019-10-10T07:01:31.011Z] 07:01:31 INFO - PID 5572 | simple-close-DPI1.error.TART: 10.2 [task 2019-10-10T07:01:31.011Z] 07:01:31 INFO - PID 5572 | icon-open-DPI1.raw.TART: 17.1 3.9 3.4 8.1 3.0 11.0 6.6 3.0 2.0 1.5 1.3 1.1 1.3 1.5 1.4 1.4 1.3 1.4 1.8 1.7 1.4 1.0 1.5 1.2 1.6 1.6 1.4 1.9 1.4 1.3 1.4 1.5 1.5 2.0 1.7 1.3 1.2 1.2 1.5 1.4 1.3 1.3 1.7 1.4 2.0 1.7 1.6 1.8 1.5 1.3 2.1 [task 2019-10-10T07:01:31.012Z] 07:01:31 INFO - PID 5572 | icon-open-DPI1.half.TART: 1.5 [task 2019-10-10T07:01:31.012Z] 07:01:31 INFO - PID 5572 | icon-open-DPI1.all.TART: 2.4 [task 2019-10-10T07:01:31.012Z] 07:01:31 INFO - PID 5572 | icon-open-DPI1.error.TART: 20.8 [task 2019-10-10T07:01:31.013Z] 07:01:31 INFO - PID 5572 | icon-close-DPI1.raw.TART: 7.8 1.1 9.0 0.7 0.6 0.8 0.4 0.6 0.4 0.7 0.6 0.4 0.4 0.3 0.5 0.8 0.6 0.4 0.4 0.3 0.5 0.4 0.4 0.4 0.6 0.3 0.3 0.2 0.4 0.4 0.3 0.3 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.4 0.4 0.3 0.3 0.3 0.2 0.3 0.4 0.6 0.4 0.5 0.4 0.4 0.5 0.4 0.5 1.0 0.5 0.7 0.4 0.8 0.5 0.9 0.3 0.4 0.3 0.3 0.4 0.4 0.4 0.3 0.3 0.4 0.4 0.4 0.3 0.3 0.5 0.3 0.4 0.3 0.3 0.5 0.4 0.4 0.3 0.3 0.4 0.3 0.5 0.3 0.4 0.4 0.3 0.4 0.7 0.4 0.3 0.7 0.2 0.4 0.3 0.4 0.4 0.3 0.3 0.4 0.4 0.4 0.2 0.4 0.3 0.4 0.5 0.6 0.5 0.5 0.4 0.5 0.4 0.4 0.4 0.6 0.6 0.7 0.5 0.4 0.4 0.5 0.4 0.5 0.4 0.8 0.4 0.6 0.4 0.4 0.4 0.5 0.3 0.4 0.3 0.3 0.3 0.5 0.4 0.4 0.4 0.4 0.3 0.4 0.5 0.4 0.5 0.3 0.3 0.5 0.3 0.5 0.4 0.5 0.3 0.4 0.4 0.5 0.3 0.5 0.4 0.8 0.3 0.5 0.4 0.4 0.3 0.6 0.5 0.7 0.5 0.6 0.3 0.4 0.3 0.3 0.3 0.5 0.3 0.3 0.5 0.4 0.4 0.5 0.7 0.5 0.5 0.4 0.5 0.3 0.4 0.3 0.5 0.4 0.4 0.4 0.6 0.4 0.4 0.5 0.3 0.5 0.3 0.4 0.4 0.6 0.4 0.5 0.3 0.3 0.3 0.3 0.2 [task 2019-10-10T07:01:31.013Z] 07:01:31 INFO - PID 5572 | icon-close-DPI1.half.TART: 0.4 [task 2019-10-10T07:01:31.013Z] 07:01:31 INFO - PID 5572 | icon-close-DPI1.all.TART: 0.5 [task 2019-10-10T07:01:31.013Z] 07:01:31 INFO - PID 5572 | icon-close-DPI1.error.TART: 10.0 [task 2019-10-10T07:01:31.013Z] 07:01:31 INFO - PID 5572 | icon-open-DPI2.raw.TART: 16.4 4.7 3.7 8.4 2.8 14.6 5.0 1.0 3.3 2.1 1.4 1.8 1.6 1.6 2.0 1.7 1.7 1.6 1.5 1.7 1.5 1.6 1.7 1.8 1.6 1.5 1.4 1.9 1.6 1.7 1.7 1.8 1.9 1.5 1.6 1.5 1.7 [task 2019-10-10T07:01:31.013Z] 07:01:31 INFO - PID 5572 | icon-open-DPI2.half.TART: 1.7 [task 2019-10-10T07:01:31.013Z] 07:01:31 INFO - PID 5572 | icon-open-DPI2.all.TART: 2.9 [task 2019-10-10T07:01:31.013Z] 07:01:31 INFO - PID 5572 | icon-open-DPI2.error.TART: 20.6 [task 2019-10-10T07:01:31.014Z] 07:01:31 INFO - PID 5572 | icon-close-DPI2.raw.TART: 10.7 8.7 0.9 0.5 1.0 0.5 0.5 0.9 0.5 0.4 0.5 0.4 0.3 0.4 0.4 0.4 0.3 0.4 0.4 0.4 0.3 0.5 0.4 0.3 0.3 0.4 0.4 0.5 0.8 0.6 0.5 0.7 0.3 0.5 0.4 0.5 0.4 0.5 0.4 0.5 0.4 0.4 0.6 0.5 0.5 0.4 0.5 0.4 0.3 0.5 0.4 0.5 0.3 0.4 0.3 0.5 0.4 0.5 0.4 0.5 0.5 0.5 0.4 0.5 0.6 0.3 0.5 0.5 0.5 0.4 0.4 0.5 0.5 0.4 0.5 0.4 0.4 0.5 0.4 0.3 0.5 1.1 0.4 0.4 0.5 0.6 0.3 0.5 0.4 0.5 0.4 0.4 0.4 0.5 0.5 0.5 0.7 0.5 0.4 0.5 0.4 0.4 0.5 0.5 0.4 0.6 0.5 0.5 0.5 0.5 0.4 0.5 0.5 0.5 0.4 0.6 0.8 0.6 0.4 0.5 0.4 0.5 0.4 0.7 0.7 0.5 0.3 0.5 0.4 0.5 0.4 0.6 0.4 0.6 0.4 0.5 0.4 0.5 0.4 0.6 0.4 0.4 0.5 0.5 0.5 0.6 0.4 0.5 0.8 0.7 0.5 0.6 0.5 1.0 0.4 0.6 0.5 0.7 0.4 0.7 0.6 0.6 0.4 0.4 0.5 0.6 0.4 0.5 0.4 0.4 0.4 0.5 0.3 0.5 0.4 0.5 0.3 0.5 0.4 0.4 0.5 0.4 0.5 0.4 0.4 0.8 0.3 0.4 0.4 0.5 0.4 0.3 0.4 0.4 0.3 0.4 [task 2019-10-10T07:01:31.014Z] 07:01:31 INFO - PID 5572 | icon-close-DPI2.half.TART: 0.5 [task 2019-10-10T07:01:31.014Z] 07:01:31 INFO - PID 5572 | icon-close-DPI2.all.TART: 0.6 [task 2019-10-10T07:01:31.014Z] 07:01:31 INFO - PID 5572 | icon-close-DPI2.error.TART: 11.9 [task 2019-10-10T07:01:31.014Z] 07:01:31 INFO - PID 5572 | iconFade-close-DPI2.raw.TART: 2.0 3.4 0.7 0.8 0.8 0.8 1.0 0.8 0.9 0.8 0.8 0.8 0.9 0.9 0.8 0.8 0.8 1.2 0.8 0.9 0.8 0.9 0.8 1.0 0.7 0.7 0.8 0.8 1.1 0.8 0.8 0.7 0.7 0.7 0.7 1.0 0.7 0.8 0.7 0.8 0.8 0.8 0.8 0.7 0.6 0.6 0.6 0.6 0.7 0.8 0.6 0.6 0.6 0.6 0.6 0.6 0.9 0.6 0.7 0.6 0.6 0.6 0.6 0.7 0.6 0.6 0.7 0.7 0.7 0.7 0.7 0.8 0.7 0.8 0.7 0.8 0.7 0.7 1.0 0.6 0.7 0.7 0.7 0.7 0.6 0.7 0.6 0.8 0.6 0.7 0.8 0.6 0.7 0.6 0.7 0.8 0.7 0.8 0.7 1.0 0.8 0.6 0.7 0.7 0.7 0.7 0.7 0.7 0.6 0.7 0.6 0.8 0.7 0.7 0.6 0.7 0.7 0.6 0.6 0.7 0.7 1.0 0.7 0.8 0.6 0.7 0.7 0.7 0.8 0.6 0.7 0.6 0.7 0.8 [task 2019-10-10T07:01:31.014Z] 07:01:31 INFO - PID 5572 | iconFade-close-DPI2.half.TART: 0.7 [task 2019-10-10T07:01:31.014Z] 07:01:31 INFO - PID 5572 | iconFade-close-DPI2.all.TART: 0.8 [task 2019-10-10T07:01:31.014Z] 07:01:31 INFO - PID 5572 | iconFade-close-DPI2.error.TART: 2.5 [task 2019-10-10T07:01:31.014Z] 07:01:31 INFO - PID 5572 | iconFade-open-DPI2.raw.TART: 2.2 1.0 1.0 0.9 1.1 1.2 0.9 1.0 1.0 0.9 0.9 1.1 0.9 0.9 0.7 1.1 0.8 0.7 0.7 3.2 0.8 1.4 1.2 1.0 1.1 1.6 0.9 1.6 1.0 1.4 1.2 1.0 1.0 1.4 1.3 1.0 1.0 0.9 0.9 0.9 0.9 1.3 1.1 1.0 1.0 1.0 1.0 1.0 0.9 1.1 1.0 1.2 1.0 0.9 1.3 1.0 1.0 0.9 1.0 1.0 1.0 1.2 1.0 1.0 1.0 1.1 1.0 1.2 1.0 1.3 1.1 1.0 1.1 1.1 1.0 1.1 1.3 1.0 1.0 1.0 [task 2019-10-10T07:01:31.014Z] 07:01:31 INFO - PID 5572 | iconFade-open-DPI2.half.TART: 1.1 [task 2019-10-10T07:01:31.015Z] 07:01:31 INFO - PID 5572 | iconFade-open-DPI2.all.TART: 1.1 [task 2019-10-10T07:01:31.015Z] 07:01:31 INFO - PID 5572 | iconFade-open-DPI2.error.TART: 2.1 [task 2019-10-10T07:01:31.015Z] 07:01:31 INFO - PID 5572 | newtab-open-preload-no.raw.TART: 19.0 2.3 4.9 3.3 2.2 1.3 5.3 3.6 1.3 1.5 2.1 3.8 1.5 1.9 1.6 1.8 2.7 1.8 1.9 1.5 1.5 1.8 1.4 1.6 1.6 1.5 1.6 1.2 1.4 1.4 1.5 1.7 1.6 1.5 1.4 1.6 1.5 1.5 1.6 1.4 1.7 1.6 1.8 1.5 1.5 1.4 1.6 1.5 1.4 1.6 1.8 1.3 1.6 1.6 1.7 1.4 [task 2019-10-10T07:01:31.015Z] 07:01:31 INFO - PID 5572 | newtab-open-preload-no.half.TART: 1.5 [task 2019-10-10T07:01:31.015Z] 07:01:31 INFO - PID 5572 | newtab-open-preload-no.all.TART: 2.2 [task 2019-10-10T07:01:31.015Z] 07:01:31 INFO - PID 5572 | newtab-open-preload-no.error.TART: 22.2 [task 2019-10-10T07:01:31.015Z] 07:01:31 INFO - PID 5572 | newtab-open-preload-yes.raw.TART: 14.9 2.3 3.2 1.4 0.9 0.7 0.9 1.6 1.2 0.9 1.3 0.9 1.0 0.8 0.9 0.9 2.0 0.8 1.9 1.6 1.3 2.3 1.7 1.5 1.9 2.2 1.4 1.5 1.8 1.5 1.5 1.4 1.6 2.0 1.7 1.8 1.4 1.7 1.4 1.6 1.4 1.4 1.4 1.4 1.5 1.6 1.3 1.9 1.3 1.4 2.0 1.6 1.4 1.7 1.4 1.6 1.6 1.5 1.7 1.6 1.5 1.4 1.5 1.5 1.5 2.0 1.9 1.6 [task 2019-10-10T07:01:31.015Z] 07:01:31 INFO - PID 5572 | newtab-open-preload-yes.half.TART: 1.6 [task 2019-10-10T07:01:31.015Z] 07:01:31 INFO - PID 5572 | newtab-open-preload-yes.all.TART: 1.7 [task 2019-10-10T07:01:31.015Z] 07:01:31 INFO - PID 5572 | newtab-open-preload-yes.error.TART: 19.8 ``` To explain the data here, each of the "X.raw" measurements shows the cost of each frame painted during an animation while in ASAP mode. The "X.Y" measurements, where "Y" is something other than "raw", are calculations based on the "raw" measurement - [this doc](https://wiki.mozilla.org/TestEngineering/Performance/Talos/Tests#tart) kinda lays it out. Looking at the "raw" measurements, it _looks_ like there are always more painted frames during the "base" case. This suggests that painting with the patch has somehow gotten more expensive.
Bug 1492582 Comment 62 Edit History
Note: The actual edited comment in the bug view page will always show the original commenter’s name and original timestamp.
Those are really compelling numbers for ts_paint / startup_about_home_paint! I believe both tresize and TART work by putting the refresh driver into ASAP mode (paint and composite as soon as possible, rather than waiting for the 16ms vsync), and then measuring the time it takes to paint each frame. So it sounds to me like perhaps painting the window has gotten slightly more expensive. I opened up the raw logs of two randomly selected runs on Win 10 x64 shippable. Here is the run data from one cycle for the base and patch case:: **Base** ``` [task 2019-10-02T23:22:25.910Z] 23:22:25 INFO - PID 2336 | simple-open-DPI1.raw.TART: 18.0 2.5 9.1 3.6 1.3 1.8 1.0 1.4 0.9 0.8 1.0 1.0 1.0 0.9 1.1 2.1 1.0 1.1 1.6 1.4 1.1 1.2 1.0 1.6 1.2 1.2 1.1 1.3 4.4 2.1 1.2 0.9 1.1 1.2 1.4 1.4 1.2 1.3 1.3 1.7 1.4 1.1 1.2 1.4 1.2 1.2 1.3 1.5 1.1 1.1 1.3 1.5 1.2 1.2 1.3 1.5 1.2 1.1 1.1 1.0 1.0 1.1 1.1 1.0 1.5 1.1 1.2 1.2 1.3 1.2 1.1 1.2 [task 2019-10-02T23:22:25.911Z] 23:22:25 INFO - PID 2336 | simple-open-DPI1.half.TART: 1.2 [task 2019-10-02T23:22:25.911Z] 23:22:25 INFO - PID 2336 | simple-open-DPI1.all.TART: 1.7 [task 2019-10-02T23:22:25.911Z] 23:22:25 INFO - PID 2336 | simple-open-DPI1.error.TART: 20.3 [task 2019-10-02T23:22:25.911Z] 23:22:25 INFO - PID 2336 | simple-close-DPI1.raw.TART: 9.1 1.0 8.1 1.1 0.7 0.6 0.4 0.5 0.4 0.4 0.4 0.3 0.4 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.4 0.4 0.3 0.4 0.3 0.5 0.3 0.8 0.3 0.4 0.3 0.3 0.3 0.5 0.7 0.4 0.3 0.5 0.4 0.4 0.3 0.4 0.3 0.5 0.3 0.4 0.3 0.5 0.3 0.4 0.3 0.4 0.3 0.5 0.3 0.4 0.3 0.4 0.5 0.4 0.4 0.6 0.4 0.4 0.3 0.4 0.3 0.4 0.4 0.3 0.3 0.5 0.7 0.4 0.3 0.4 0.3 0.3 0.4 0.3 0.4 0.3 0.4 0.3 0.4 0.3 0.4 0.4 0.4 0.4 0.4 0.2 0.3 0.4 0.3 0.4 0.4 0.4 0.4 0.4 0.3 0.4 0.5 0.7 0.4 0.5 0.4 0.4 0.3 0.5 0.4 0.4 0.6 0.3 0.4 0.5 0.4 0.4 0.3 0.4 0.4 0.3 0.4 0.4 0.4 0.4 0.3 0.4 0.3 0.4 0.4 0.4 0.3 0.4 0.3 0.4 0.3 0.5 0.3 0.4 0.3 0.4 0.4 0.4 0.4 0.4 0.3 0.4 0.3 0.4 0.3 0.8 0.3 0.4 0.4 0.4 0.4 0.5 0.3 0.5 0.3 0.5 0.3 0.4 0.4 0.5 0.3 0.4 0.4 0.5 0.3 0.4 0.3 0.4 0.3 0.4 0.4 0.5 0.3 0.4 0.4 0.4 0.3 0.4 0.3 0.3 0.4 0.4 0.3 0.4 0.7 0.5 0.3 0.5 0.3 0.4 0.3 0.5 0.4 0.4 0.3 0.4 0.3 0.4 0.3 0.4 0.4 0.3 0.3 0.4 0.3 0.4 0.3 0.4 0.3 0.4 0.4 0.4 0.3 0.4 0.4 0.4 0.4 0.4 0.3 0.4 0.4 0.4 0.4 0.4 0.6 0.3 0.3 0.4 [task 2019-10-02T23:22:25.911Z] 23:22:25 INFO - PID 2336 | simple-close-DPI1.half.TART: 0.4 [task 2019-10-02T23:22:25.911Z] 23:22:25 INFO - PID 2336 | simple-close-DPI1.all.TART: 0.5 [task 2019-10-02T23:22:25.912Z] 23:22:25 INFO - PID 2336 | simple-close-DPI1.error.TART: 10.1 [task 2019-10-02T23:22:25.912Z] 23:22:25 INFO - PID 2336 | icon-open-DPI1.raw.TART: 17.1 3.1 3.5 9.4 2.5 16.0 3.3 3.9 3.8 1.9 1.2 1.5 1.6 1.2 1.3 1.3 1.5 1.5 1.3 1.4 1.5 1.2 1.4 1.1 1.1 1.0 1.1 1.3 1.1 1.0 1.0 1.0 1.0 1.1 1.0 1.0 1.1 1.2 1.2 1.3 1.3 1.9 1.5 1.4 1.2 1.3 1.5 1.3 1.2 1.4 1.3 1.3 1.4 1.2 [task 2019-10-02T23:22:25.912Z] 23:22:25 INFO - PID 2336 | icon-open-DPI1.half.TART: 1.3 [task 2019-10-02T23:22:25.912Z] 23:22:25 INFO - PID 2336 | icon-open-DPI1.all.TART: 2.2 [task 2019-10-02T23:22:25.912Z] 23:22:25 INFO - PID 2336 | icon-open-DPI1.error.TART: 20.6 [task 2019-10-02T23:22:25.912Z] 23:22:25 INFO - PID 2336 | icon-close-DPI1.raw.TART: 8.6 1.1 9.1 1.0 1.0 0.9 1.2 0.4 0.5 0.4 0.3 0.7 0.4 0.3 0.5 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.3 0.3 0.2 0.3 0.2 0.2 0.3 0.3 0.2 0.3 0.2 0.2 0.3 0.3 0.4 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.6 0.3 0.5 0.3 0.3 0.4 0.3 0.3 0.3 0.4 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.4 0.3 0.4 0.2 0.3 0.3 0.4 0.4 0.4 0.3 0.6 0.4 0.4 0.5 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.5 0.4 0.3 0.2 0.2 0.2 0.2 0.3 0.3 0.2 0.3 0.2 0.3 0.2 0.3 0.3 0.3 0.2 0.4 0.3 0.3 0.3 0.2 0.2 0.3 0.2 0.3 0.3 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.4 0.2 0.4 0.3 0.4 0.4 0.4 0.4 0.4 0.8 0.4 0.5 0.4 0.5 0.3 0.5 0.4 0.4 0.3 0.4 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.4 0.3 0.2 0.3 0.3 0.2 0.4 0.3 0.5 0.3 0.4 0.3 0.3 0.4 0.3 0.5 0.3 0.4 0.4 0.3 0.3 0.3 0.3 0.6 0.3 0.4 0.3 0.5 0.4 0.3 0.4 0.3 0.4 0.3 0.3 0.4 0.3 0.3 0.4 0.2 0.4 0.3 0.2 0.3 0.3 0.3 0.3 0.2 0.3 0.3 0.3 0.3 0.2 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.4 0.6 0.4 0.3 0.4 0.4 0.3 0.3 0.4 0.3 0.4 0.3 0.3 0.4 0.3 0.4 0.6 0.4 0.5 0.4 0.5 0.3 0.4 0.2 0.3 0.3 0.3 0.2 0.4 [task 2019-10-02T23:22:25.912Z] 23:22:25 INFO - PID 2336 | icon-close-DPI1.half.TART: 0.3 [task 2019-10-02T23:22:25.912Z] 23:22:25 INFO - PID 2336 | icon-close-DPI1.all.TART: 0.4 [task 2019-10-02T23:22:25.913Z] 23:22:25 INFO - PID 2336 | icon-close-DPI1.error.TART: 10.2 [task 2019-10-02T23:22:25.913Z] 23:22:25 INFO - PID 2336 | icon-open-DPI2.raw.TART: 16.3 3.6 3.1 7.8 2.3 13.4 5.7 2.7 1.9 1.7 1.4 1.3 1.8 1.2 1.3 1.3 1.4 1.2 1.2 1.4 1.4 1.4 1.2 1.7 1.0 1.3 1.4 1.3 1.3 1.3 1.5 1.2 1.2 1.3 1.3 1.7 1.4 1.3 1.4 1.2 1.2 1.3 1.5 1.7 1.4 [task 2019-10-02T23:22:25.913Z] 23:22:25 INFO - PID 2336 | icon-open-DPI2.half.TART: 1.4 [task 2019-10-02T23:22:25.913Z] 23:22:25 INFO - PID 2336 | icon-open-DPI2.all.TART: 2.3 [task 2019-10-02T23:22:25.913Z] 23:22:25 INFO - PID 2336 | icon-open-DPI2.error.TART: 19.7 [task 2019-10-02T23:22:25.913Z] 23:22:25 INFO - PID 2336 | icon-close-DPI2.raw.TART: 9.6 9.7 1.0 0.5 0.8 0.4 0.5 0.3 0.4 0.4 0.4 0.3 0.4 0.4 0.5 0.3 0.3 0.5 0.3 0.4 0.4 0.3 0.3 0.4 0.4 0.3 0.4 0.4 0.7 0.3 0.4 0.3 0.3 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.5 0.3 0.4 0.5 0.5 0.5 0.4 0.4 0.7 0.7 0.3 0.5 0.4 0.4 0.3 0.4 0.4 0.3 0.4 0.4 0.4 0.5 0.4 0.5 0.3 0.7 0.3 0.3 0.4 0.3 0.3 0.4 0.4 0.6 0.5 0.6 0.5 0.3 0.4 0.3 0.4 0.4 0.6 0.5 0.5 0.3 0.4 0.5 0.3 0.4 0.5 0.5 0.3 0.5 0.3 0.4 0.4 0.7 0.5 0.5 0.6 0.4 0.4 0.3 0.5 0.5 0.4 0.7 0.3 0.5 0.4 0.4 0.4 0.3 0.4 0.4 0.5 0.5 0.6 0.4 0.4 0.3 0.4 0.3 0.3 0.3 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 0.4 0.8 0.3 0.5 0.2 0.4 0.3 0.3 0.5 0.5 0.3 0.4 0.3 0.4 0.3 0.4 0.3 0.4 0.3 0.3 0.4 0.4 0.5 0.3 0.4 0.3 0.4 0.4 0.5 0.4 0.5 0.3 0.5 0.4 0.5 0.4 0.4 0.4 0.4 0.4 0.6 0.4 0.3 0.3 0.5 0.5 0.5 0.3 0.5 0.3 0.5 0.4 0.7 0.3 0.5 0.3 0.6 0.3 0.5 0.3 0.5 0.4 0.6 0.6 0.6 0.4 0.5 0.3 0.4 0.3 0.5 0.4 0.5 0.3 0.7 0.4 0.5 0.7 0.4 0.4 0.5 0.3 0.4 0.3 0.3 0.2 [task 2019-10-02T23:22:25.913Z] 23:22:25 INFO - PID 2336 | icon-close-DPI2.half.TART: 0.4 [task 2019-10-02T23:22:25.914Z] 23:22:25 INFO - PID 2336 | icon-close-DPI2.all.TART: 0.5 [task 2019-10-02T23:22:25.914Z] 23:22:25 INFO - PID 2336 | icon-close-DPI2.error.TART: 10.8 [task 2019-10-02T23:22:25.914Z] 23:22:25 INFO - PID 2336 | iconFade-close-DPI2.raw.TART: 1.8 3.1 0.6 0.7 0.5 0.8 0.7 0.7 0.7 0.6 0.7 0.8 0.7 0.9 0.7 0.8 0.7 0.7 0.9 0.6 0.9 0.5 0.5 0.5 0.5 0.5 0.6 0.5 0.6 0.5 0.5 0.6 0.5 0.5 0.5 0.5 0.6 0.5 0.5 0.6 0.7 0.6 0.6 0.7 0.7 0.6 1.1 0.6 0.6 0.7 0.7 0.7 0.6 0.6 0.7 0.6 0.7 0.8 0.7 0.7 0.7 0.7 0.6 0.6 0.7 0.6 0.6 0.7 0.8 0.9 0.5 0.6 0.7 0.6 0.7 0.6 0.7 0.6 0.6 0.6 0.6 0.5 0.7 0.7 0.5 0.5 0.7 0.7 0.6 0.6 0.6 0.6 0.6 0.8 0.6 0.6 0.6 0.5 0.6 0.6 0.6 0.6 0.6 0.6 0.5 0.6 0.6 0.6 0.6 0.5 0.6 0.7 0.6 0.5 0.5 0.6 0.6 0.5 0.9 0.5 0.6 0.6 0.6 0.6 0.5 0.8 0.6 0.5 0.6 0.7 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0.5 0.6 0.6 0.7 0.5 0.6 0.8 0.7 0.6 0.6 0.6 0.6 0.5 0.6 0.6 0.6 0.6 0.5 0.6 0.5 0.6 [task 2019-10-02T23:22:25.914Z] 23:22:25 INFO - PID 2336 | iconFade-close-DPI2.half.TART: 0.6 [task 2019-10-02T23:22:25.914Z] 23:22:25 INFO - PID 2336 | iconFade-close-DPI2.all.TART: 0.6 [task 2019-10-02T23:22:25.914Z] 23:22:25 INFO - PID 2336 | iconFade-close-DPI2.error.TART: 2.1 [task 2019-10-02T23:22:25.915Z] 23:22:25 INFO - PID 2336 | iconFade-open-DPI2.raw.TART: 2.5 0.8 1.1 0.8 0.7 0.8 0.8 1.0 0.8 0.9 0.5 0.6 0.6 0.6 0.6 0.6 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.7 1.0 0.7 0.6 0.7 0.7 0.7 0.8 0.7 0.7 0.7 0.7 1.0 0.8 0.8 0.8 0.8 0.9 0.8 1.1 0.8 0.9 0.8 0.9 0.7 0.8 0.8 0.8 0.8 0.8 0.9 0.9 0.9 0.8 0.8 0.9 0.9 1.2 0.8 0.8 0.9 0.9 0.9 0.9 1.1 1.0 1.0 1.0 0.9 1.0 1.0 0.8 1.0 1.2 0.8 0.9 0.9 0.9 0.8 0.9 0.8 0.9 1.0 0.8 1.1 0.9 0.9 0.9 0.9 0.8 1.3 0.9 0.9 0.8 0.8 0.9 0.9 0.8 [task 2019-10-02T23:22:25.915Z] 23:22:25 INFO - PID 2336 | iconFade-open-DPI2.half.TART: 0.9 [task 2019-10-02T23:22:25.915Z] 23:22:25 INFO - PID 2336 | iconFade-open-DPI2.all.TART: 0.8 [task 2019-10-02T23:22:25.915Z] 23:22:25 INFO - PID 2336 | iconFade-open-DPI2.error.TART: 1.8 [task 2019-10-02T23:22:25.915Z] 23:22:25 INFO - PID 2336 | newtab-open-preload-no.raw.TART: 18.0 2.0 4.1 2.9 2.9 1.8 1.3 1.4 1.3 7.4 1.7 4.2 1.6 2.8 1.6 1.5 1.6 1.6 1.6 1.4 1.5 1.5 1.2 1.3 1.4 1.4 1.2 1.8 1.4 1.3 1.3 1.4 1.3 1.2 1.4 1.2 1.3 2.1 1.4 1.0 1.4 1.2 1.6 1.6 1.5 1.4 1.2 1.3 1.7 1.2 1.3 1.4 1.4 1.3 1.3 1.2 1.4 1.6 1.3 1.7 1.6 [task 2019-10-02T23:22:25.915Z] 23:22:25 INFO - PID 2336 | newtab-open-preload-no.half.TART: 1.4 [task 2019-10-02T23:22:25.915Z] 23:22:25 INFO - PID 2336 | newtab-open-preload-no.all.TART: 2.0 [task 2019-10-02T23:22:25.915Z] 23:22:25 INFO - PID 2336 | newtab-open-preload-no.error.TART: 20.6 [task 2019-10-02T23:22:25.915Z] 23:22:25 INFO - PID 2336 | newtab-open-preload-yes.raw.TART: 16.1 3.2 4.1 1.1 0.8 0.6 0.7 0.9 1.0 1.2 0.8 0.8 0.7 1.1 0.9 0.9 2.0 0.6 1.3 1.1 1.0 0.9 1.0 2.5 1.2 1.5 1.7 1.6 1.6 1.4 1.4 1.2 1.3 1.3 1.3 1.3 1.3 1.3 1.5 1.4 1.7 1.3 1.8 1.4 1.4 1.4 1.5 1.2 1.5 1.6 1.8 1.3 1.3 1.5 1.4 1.4 1.5 1.3 1.2 1.4 1.5 1.3 1.3 1.4 1.4 1.3 1.4 1.4 1.3 1.4 2.0 2.7 1.2 1.1 1.6 [task 2019-10-02T23:22:25.915Z] 23:22:25 INFO - PID 2336 | newtab-open-preload-yes.half.TART: 1.5 [task 2019-10-02T23:22:25.915Z] 23:22:25 INFO - PID 2336 | newtab-open-preload-yes.all.TART: 1.6 [task 2019-10-02T23:22:25.916Z] 23:22:25 INFO - PID 2336 | newtab-open-preload-yes.error.TART: 21.4 ``` **Patch** ``` [task 2019-10-10T07:01:31.009Z] 07:01:31 INFO - PID 5572 | simple-open-DPI1.raw.TART: 17.8 1.9 9.5 3.6 1.1 1.2 1.6 1.1 1.2 1.2 1.4 1.5 1.6 2.2 1.0 1.2 1.3 1.3 1.2 1.2 1.3 1.3 1.4 1.4 1.1 1.2 1.4 1.3 1.8 1.4 1.2 1.3 1.3 1.2 1.1 1.6 1.0 1.3 1.3 1.3 1.4 1.7 1.2 1.4 1.3 1.4 1.4 1.6 1.4 1.4 1.3 1.6 1.3 3.4 2.1 1.6 1.0 1.3 1.3 2.0 1.5 1.6 1.5 1.5 1.3 1.8 [task 2019-10-10T07:01:31.009Z] 07:01:31 INFO - PID 5572 | simple-open-DPI1.half.TART: 1.5 [task 2019-10-10T07:01:31.010Z] 07:01:31 INFO - PID 5572 | simple-open-DPI1.all.TART: 1.8 [task 2019-10-10T07:01:31.010Z] 07:01:31 INFO - PID 5572 | simple-open-DPI1.error.TART: 20.4 [task 2019-10-10T07:01:31.010Z] 07:01:31 INFO - PID 5572 | simple-close-DPI1.raw.TART: 9.3 1.4 7.4 0.9 0.8 0.4 0.4 0.7 0.4 0.3 0.3 0.3 1.2 0.5 0.3 0.3 0.3 0.3 0.2 0.2 0.3 0.3 0.3 0.3 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.3 0.4 0.3 0.3 0.3 0.4 0.3 0.5 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.4 0.3 0.4 0.4 0.3 0.3 0.7 0.5 0.4 0.8 0.3 0.3 0.4 0.4 0.3 0.4 0.2 0.3 0.4 0.3 0.3 0.3 0.3 0.4 0.3 0.4 0.6 0.4 0.4 0.4 0.5 0.3 0.4 0.3 0.4 0.4 0.4 0.4 0.4 0.5 0.4 0.4 0.4 0.7 0.8 0.6 0.5 0.4 0.4 0.4 0.7 0.5 0.4 0.5 0.4 0.5 0.3 0.3 0.5 0.4 0.4 0.3 0.3 0.3 0.3 0.4 0.3 0.5 0.3 0.3 0.4 0.4 0.4 0.3 0.2 0.5 0.3 0.4 0.3 0.3 0.6 0.3 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.6 0.2 0.4 0.3 0.4 0.4 0.2 0.5 0.3 0.4 0.3 0.4 0.3 0.3 0.5 0.3 0.4 0.4 0.4 0.4 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.6 0.4 0.3 0.3 0.5 0.3 0.4 0.3 0.4 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.5 0.4 0.3 0.4 0.4 0.3 0.4 0.5 0.4 0.5 0.3 0.4 0.4 0.3 0.4 0.3 0.5 0.3 0.4 0.5 0.4 0.7 0.3 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.4 0.3 0.4 0.3 0.4 0.4 0.3 0.4 0.4 0.4 0.4 0.3 0.5 0.8 0.4 0.4 0.4 0.6 0.4 0.5 [task 2019-10-10T07:01:31.010Z] 07:01:31 INFO - PID 5572 | simple-close-DPI1.half.TART: 0.4 [task 2019-10-10T07:01:31.011Z] 07:01:31 INFO - PID 5572 | simple-close-DPI1.all.TART: 0.5 [task 2019-10-10T07:01:31.011Z] 07:01:31 INFO - PID 5572 | simple-close-DPI1.error.TART: 10.2 [task 2019-10-10T07:01:31.011Z] 07:01:31 INFO - PID 5572 | icon-open-DPI1.raw.TART: 17.1 3.9 3.4 8.1 3.0 11.0 6.6 3.0 2.0 1.5 1.3 1.1 1.3 1.5 1.4 1.4 1.3 1.4 1.8 1.7 1.4 1.0 1.5 1.2 1.6 1.6 1.4 1.9 1.4 1.3 1.4 1.5 1.5 2.0 1.7 1.3 1.2 1.2 1.5 1.4 1.3 1.3 1.7 1.4 2.0 1.7 1.6 1.8 1.5 1.3 2.1 [task 2019-10-10T07:01:31.012Z] 07:01:31 INFO - PID 5572 | icon-open-DPI1.half.TART: 1.5 [task 2019-10-10T07:01:31.012Z] 07:01:31 INFO - PID 5572 | icon-open-DPI1.all.TART: 2.4 [task 2019-10-10T07:01:31.012Z] 07:01:31 INFO - PID 5572 | icon-open-DPI1.error.TART: 20.8 [task 2019-10-10T07:01:31.013Z] 07:01:31 INFO - PID 5572 | icon-close-DPI1.raw.TART: 7.8 1.1 9.0 0.7 0.6 0.8 0.4 0.6 0.4 0.7 0.6 0.4 0.4 0.3 0.5 0.8 0.6 0.4 0.4 0.3 0.5 0.4 0.4 0.4 0.6 0.3 0.3 0.2 0.4 0.4 0.3 0.3 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.4 0.4 0.3 0.3 0.3 0.2 0.3 0.4 0.6 0.4 0.5 0.4 0.4 0.5 0.4 0.5 1.0 0.5 0.7 0.4 0.8 0.5 0.9 0.3 0.4 0.3 0.3 0.4 0.4 0.4 0.3 0.3 0.4 0.4 0.4 0.3 0.3 0.5 0.3 0.4 0.3 0.3 0.5 0.4 0.4 0.3 0.3 0.4 0.3 0.5 0.3 0.4 0.4 0.3 0.4 0.7 0.4 0.3 0.7 0.2 0.4 0.3 0.4 0.4 0.3 0.3 0.4 0.4 0.4 0.2 0.4 0.3 0.4 0.5 0.6 0.5 0.5 0.4 0.5 0.4 0.4 0.4 0.6 0.6 0.7 0.5 0.4 0.4 0.5 0.4 0.5 0.4 0.8 0.4 0.6 0.4 0.4 0.4 0.5 0.3 0.4 0.3 0.3 0.3 0.5 0.4 0.4 0.4 0.4 0.3 0.4 0.5 0.4 0.5 0.3 0.3 0.5 0.3 0.5 0.4 0.5 0.3 0.4 0.4 0.5 0.3 0.5 0.4 0.8 0.3 0.5 0.4 0.4 0.3 0.6 0.5 0.7 0.5 0.6 0.3 0.4 0.3 0.3 0.3 0.5 0.3 0.3 0.5 0.4 0.4 0.5 0.7 0.5 0.5 0.4 0.5 0.3 0.4 0.3 0.5 0.4 0.4 0.4 0.6 0.4 0.4 0.5 0.3 0.5 0.3 0.4 0.4 0.6 0.4 0.5 0.3 0.3 0.3 0.3 0.2 [task 2019-10-10T07:01:31.013Z] 07:01:31 INFO - PID 5572 | icon-close-DPI1.half.TART: 0.4 [task 2019-10-10T07:01:31.013Z] 07:01:31 INFO - PID 5572 | icon-close-DPI1.all.TART: 0.5 [task 2019-10-10T07:01:31.013Z] 07:01:31 INFO - PID 5572 | icon-close-DPI1.error.TART: 10.0 [task 2019-10-10T07:01:31.013Z] 07:01:31 INFO - PID 5572 | icon-open-DPI2.raw.TART: 16.4 4.7 3.7 8.4 2.8 14.6 5.0 1.0 3.3 2.1 1.4 1.8 1.6 1.6 2.0 1.7 1.7 1.6 1.5 1.7 1.5 1.6 1.7 1.8 1.6 1.5 1.4 1.9 1.6 1.7 1.7 1.8 1.9 1.5 1.6 1.5 1.7 [task 2019-10-10T07:01:31.013Z] 07:01:31 INFO - PID 5572 | icon-open-DPI2.half.TART: 1.7 [task 2019-10-10T07:01:31.013Z] 07:01:31 INFO - PID 5572 | icon-open-DPI2.all.TART: 2.9 [task 2019-10-10T07:01:31.013Z] 07:01:31 INFO - PID 5572 | icon-open-DPI2.error.TART: 20.6 [task 2019-10-10T07:01:31.014Z] 07:01:31 INFO - PID 5572 | icon-close-DPI2.raw.TART: 10.7 8.7 0.9 0.5 1.0 0.5 0.5 0.9 0.5 0.4 0.5 0.4 0.3 0.4 0.4 0.4 0.3 0.4 0.4 0.4 0.3 0.5 0.4 0.3 0.3 0.4 0.4 0.5 0.8 0.6 0.5 0.7 0.3 0.5 0.4 0.5 0.4 0.5 0.4 0.5 0.4 0.4 0.6 0.5 0.5 0.4 0.5 0.4 0.3 0.5 0.4 0.5 0.3 0.4 0.3 0.5 0.4 0.5 0.4 0.5 0.5 0.5 0.4 0.5 0.6 0.3 0.5 0.5 0.5 0.4 0.4 0.5 0.5 0.4 0.5 0.4 0.4 0.5 0.4 0.3 0.5 1.1 0.4 0.4 0.5 0.6 0.3 0.5 0.4 0.5 0.4 0.4 0.4 0.5 0.5 0.5 0.7 0.5 0.4 0.5 0.4 0.4 0.5 0.5 0.4 0.6 0.5 0.5 0.5 0.5 0.4 0.5 0.5 0.5 0.4 0.6 0.8 0.6 0.4 0.5 0.4 0.5 0.4 0.7 0.7 0.5 0.3 0.5 0.4 0.5 0.4 0.6 0.4 0.6 0.4 0.5 0.4 0.5 0.4 0.6 0.4 0.4 0.5 0.5 0.5 0.6 0.4 0.5 0.8 0.7 0.5 0.6 0.5 1.0 0.4 0.6 0.5 0.7 0.4 0.7 0.6 0.6 0.4 0.4 0.5 0.6 0.4 0.5 0.4 0.4 0.4 0.5 0.3 0.5 0.4 0.5 0.3 0.5 0.4 0.4 0.5 0.4 0.5 0.4 0.4 0.8 0.3 0.4 0.4 0.5 0.4 0.3 0.4 0.4 0.3 0.4 [task 2019-10-10T07:01:31.014Z] 07:01:31 INFO - PID 5572 | icon-close-DPI2.half.TART: 0.5 [task 2019-10-10T07:01:31.014Z] 07:01:31 INFO - PID 5572 | icon-close-DPI2.all.TART: 0.6 [task 2019-10-10T07:01:31.014Z] 07:01:31 INFO - PID 5572 | icon-close-DPI2.error.TART: 11.9 [task 2019-10-10T07:01:31.014Z] 07:01:31 INFO - PID 5572 | iconFade-close-DPI2.raw.TART: 2.0 3.4 0.7 0.8 0.8 0.8 1.0 0.8 0.9 0.8 0.8 0.8 0.9 0.9 0.8 0.8 0.8 1.2 0.8 0.9 0.8 0.9 0.8 1.0 0.7 0.7 0.8 0.8 1.1 0.8 0.8 0.7 0.7 0.7 0.7 1.0 0.7 0.8 0.7 0.8 0.8 0.8 0.8 0.7 0.6 0.6 0.6 0.6 0.7 0.8 0.6 0.6 0.6 0.6 0.6 0.6 0.9 0.6 0.7 0.6 0.6 0.6 0.6 0.7 0.6 0.6 0.7 0.7 0.7 0.7 0.7 0.8 0.7 0.8 0.7 0.8 0.7 0.7 1.0 0.6 0.7 0.7 0.7 0.7 0.6 0.7 0.6 0.8 0.6 0.7 0.8 0.6 0.7 0.6 0.7 0.8 0.7 0.8 0.7 1.0 0.8 0.6 0.7 0.7 0.7 0.7 0.7 0.7 0.6 0.7 0.6 0.8 0.7 0.7 0.6 0.7 0.7 0.6 0.6 0.7 0.7 1.0 0.7 0.8 0.6 0.7 0.7 0.7 0.8 0.6 0.7 0.6 0.7 0.8 [task 2019-10-10T07:01:31.014Z] 07:01:31 INFO - PID 5572 | iconFade-close-DPI2.half.TART: 0.7 [task 2019-10-10T07:01:31.014Z] 07:01:31 INFO - PID 5572 | iconFade-close-DPI2.all.TART: 0.8 [task 2019-10-10T07:01:31.014Z] 07:01:31 INFO - PID 5572 | iconFade-close-DPI2.error.TART: 2.5 [task 2019-10-10T07:01:31.014Z] 07:01:31 INFO - PID 5572 | iconFade-open-DPI2.raw.TART: 2.2 1.0 1.0 0.9 1.1 1.2 0.9 1.0 1.0 0.9 0.9 1.1 0.9 0.9 0.7 1.1 0.8 0.7 0.7 3.2 0.8 1.4 1.2 1.0 1.1 1.6 0.9 1.6 1.0 1.4 1.2 1.0 1.0 1.4 1.3 1.0 1.0 0.9 0.9 0.9 0.9 1.3 1.1 1.0 1.0 1.0 1.0 1.0 0.9 1.1 1.0 1.2 1.0 0.9 1.3 1.0 1.0 0.9 1.0 1.0 1.0 1.2 1.0 1.0 1.0 1.1 1.0 1.2 1.0 1.3 1.1 1.0 1.1 1.1 1.0 1.1 1.3 1.0 1.0 1.0 [task 2019-10-10T07:01:31.014Z] 07:01:31 INFO - PID 5572 | iconFade-open-DPI2.half.TART: 1.1 [task 2019-10-10T07:01:31.015Z] 07:01:31 INFO - PID 5572 | iconFade-open-DPI2.all.TART: 1.1 [task 2019-10-10T07:01:31.015Z] 07:01:31 INFO - PID 5572 | iconFade-open-DPI2.error.TART: 2.1 [task 2019-10-10T07:01:31.015Z] 07:01:31 INFO - PID 5572 | newtab-open-preload-no.raw.TART: 19.0 2.3 4.9 3.3 2.2 1.3 5.3 3.6 1.3 1.5 2.1 3.8 1.5 1.9 1.6 1.8 2.7 1.8 1.9 1.5 1.5 1.8 1.4 1.6 1.6 1.5 1.6 1.2 1.4 1.4 1.5 1.7 1.6 1.5 1.4 1.6 1.5 1.5 1.6 1.4 1.7 1.6 1.8 1.5 1.5 1.4 1.6 1.5 1.4 1.6 1.8 1.3 1.6 1.6 1.7 1.4 [task 2019-10-10T07:01:31.015Z] 07:01:31 INFO - PID 5572 | newtab-open-preload-no.half.TART: 1.5 [task 2019-10-10T07:01:31.015Z] 07:01:31 INFO - PID 5572 | newtab-open-preload-no.all.TART: 2.2 [task 2019-10-10T07:01:31.015Z] 07:01:31 INFO - PID 5572 | newtab-open-preload-no.error.TART: 22.2 [task 2019-10-10T07:01:31.015Z] 07:01:31 INFO - PID 5572 | newtab-open-preload-yes.raw.TART: 14.9 2.3 3.2 1.4 0.9 0.7 0.9 1.6 1.2 0.9 1.3 0.9 1.0 0.8 0.9 0.9 2.0 0.8 1.9 1.6 1.3 2.3 1.7 1.5 1.9 2.2 1.4 1.5 1.8 1.5 1.5 1.4 1.6 2.0 1.7 1.8 1.4 1.7 1.4 1.6 1.4 1.4 1.4 1.4 1.5 1.6 1.3 1.9 1.3 1.4 2.0 1.6 1.4 1.7 1.4 1.6 1.6 1.5 1.7 1.6 1.5 1.4 1.5 1.5 1.5 2.0 1.9 1.6 [task 2019-10-10T07:01:31.015Z] 07:01:31 INFO - PID 5572 | newtab-open-preload-yes.half.TART: 1.6 [task 2019-10-10T07:01:31.015Z] 07:01:31 INFO - PID 5572 | newtab-open-preload-yes.all.TART: 1.7 [task 2019-10-10T07:01:31.015Z] 07:01:31 INFO - PID 5572 | newtab-open-preload-yes.error.TART: 19.8 ``` To explain the data here, each of the "X.raw" measurements shows the cost of each frame painted during an animation while in ASAP mode. The "X.Y" measurements, where "Y" is something other than "raw", are calculations based on the "raw" measurement - [this doc](https://wiki.mozilla.org/TestEngineering/Performance/Talos/Tests#tart) kinda lays it out. Looking at the "raw" measurements, it _looks_ like there are always more painted frames during the "base" case. This suggests that painting with the patch has somehow gotten more expensive, or otherwise caused us to paint less frequently when in ASAP mode.