https://bugs.freedesktop.org/show_bug.cgi?id=97879

--- Comment #41 from Marek Olšák maraeo@gmail.com --- Yeah, the stalls are pretty small with apitrace. I've just pushed patches that should improve compile times for the GLSL compiler. Before that, the GLSL compilation speed always decreased with a high memory allocation count in the process. That may explain why apitrace is faster.