Question / Help Archlinux + nvenc bad performance

quandasim

New Member
Hello
I'm trying capture gaming sesion with obs, ffmpeg and nvenc. I heard that nvenc is similar to shadowplay on windows, which captured fullhdx60 fps without game speed impact.

Loks like everything works without problem, but the game performance is very bad - please see this video and log file:

https://drive.google.com/open?id=0B3WrHC7jgI2vVjZZdF9HR1pvV0U
https://gist.github.com/0f23822ec242dff8e51268bf76904fea

when i try capture directly with ffmpeg i got similar result

the game slow down right after i add new source - screen capture, i dont need click "start recording"
i have this programs installed on my arch64 bit:

local/ffmpeg-full-nvenc 1:3.3.1-1
Record, convert, and stream audio and video (all codecs including Nvidia
NVENC)
local/nvidia-sdk 8.0.14-1
NVIDIA Video Codec SDK (NVDECODE and NVENCODE APIs) (needs registration at
upstream URL and manual download)
community/cuda 8.0.61-2
NVIDIA's GPU programming toolkit
local/obs-studio-git 19.0.2.r18.gdaee6e07-1
Free and open source software for video recording and live streaming.
extra/nvidia 381.22-2
NVIDIA drivers for linux

i have GeForce GTX 970,
Intel(R) Core(TM) i5-4460 CPU @ 3.20GHz
16gb ddr3 ram


thanks for any help or advice and sorry for my bad English.
 
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