The traces don't work. Let's assume it's an apitrace bug. Running the traces can be done with: glretrace --benchmark [trace file] glretrace is part of apitrace. We can at least profile the compiler: - please create an empty directory - point this environment variable to it: MESA_SHADER_CAPTURE_PATH=[path] - play the game for a while... after that, the directory should contain a lot of shader files - please pack the directory and attach it Thanks.