[jcelerier]

> Compositing should do so as well by avoiding unnecessary redraws.

I use a tiling WM so I doubt it would help much. If anything, if I run a whole system profile with perf, rendering does not even show up when compared to just running a git status here.

> That sequencer would probably benefit greatly on a Raspberry by using GPU rendering, the screenshot even shows it rendering video and shaders...

Sure, the video & shader parts use GPU of course. But for the main GUI, it can be rendered with OpenGL or with Qt's software renderer ; from my tests (and lord knows I've spent entire weeks profiling and doing everything I could to improve rendering performance) the OpenGL backend for the main GUI only becomes more worth it when using a 4k resolution - and GL is absolutely full of bugs on e.g. windows ; yes there are still people with GMA500 GPUs. Qt's software renderer has no issue rendering at a 1080 screen size on a Pi 3.