Well first of all greetings to all,
I am currently looking for a way to record my game games in linux without the impact is very noticeable (similar to what is agreed with AMD Relive in Windows). I've searched everywhere and I really do not find anything that takes advantage of my AMD R9 290 graphics accelerator to encode and decode, I currently perform this task via software but the impact is very high between 20 to 25% of my Intel i5 4460 CPU, high quality with a bitrate of 2500 and only 30fps with radeon Relive only uses between 5 to 8% recording in high quality at 60fps.
In view that once again it seems that as many users of Linux as Mac will not have this utility I attach to the goodwill of you to reach at least an intermediate solution, since with only 2 minutes of search I saw that nvidia has nvenc and has nothing to send to its performance in Windows.
Anyway, I currently use the driver amdgpu(opensource, no pro) with drm next 3.19, kernel 4.14rc3-3, LLVM 4.0.1 (I do better than 5.0), Mesa 17.2.2. and my distribution is Open Suse Tumbleweed.
If you need any additional information, please just let me know.
Thank you for your feedback.