On Wed, 2019-05-29 at 19:45 +0200, Theodore Papadopoulo wrote: > Can someone explain why the destop environment (here Cinnamon) can have > such an impact on the graphic card performance ? Because (I suspect) you're not measuring glmark2 --off-screen, which means the output that glmark generates has to also be presented to the screen, which - for cinnamon, and gnome-shell, and kwin's gl mode - means that display _also_ uses GL and so will be contending with glmark for the GPU. The offscreen glmark numbers ought to be nearly identical. > Even better is there a way to investigate the GPU usage (a la ps or top) > to understand such issues ? GL profiling is something of a dark art with the open source tools. If you have an intel gpu you could start with intel_gpu_top from the igt- gpu-tools package. - ajax _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx
