https://bugs.freedesktop.org/show_bug.cgi?id=82050
--- Comment #15 from Niels Ole Salscheider niels_ole@salscheider-online.de --- Does pyrit transfer much data from the GPU to the CPU? If so, my patch "gallium/radeon: Do not use u_upload_mgr for buffer downloads" that I have just sent to the mesa-dev mailing list might help...