[FFmpeg-user] RES: A question on the Quadro P6000 and maximum simultaneous NVENC encodes in FFmpeg

[Pedro Daniel Costa]

Ok

But with the TESLA models, did you have any issues over 40 streams?

I am planning on budge project to run minimum 100channels

-----Mensagem original-----
De: ffmpeg-user [mailto:ffmpeg-user-bounces at ffmpeg.org] Em nome de Dennis Mungai
Enviada em: quinta-feira, 23 de agosto de 2018 13:54
Para: FFmpeg user questions
Assunto: [FFmpeg-user] A question on the Quadro P6000 and maximum simultaneous NVENC encodes in FFmpeg

Hello there,

For users with this specific card (and FFmpeg installed), kindly clarify on the following:

(a). How many simultaneous encoder sessions can you run on this card?

(b). Have you ran into any issues, such as stuttering and dropping streams with multiple concurrent encodes?

I ask because of a recent case where adding more than ~40 concurrent encodes would make the output "drop" and stutter massively, as if FFmpeg itself was hanging, despite the GPU having more than enough VRAM (24GB?) and resources (under ~11% utilization according to nvidia-smi), implying some sort of artificial limitation in effect despite the GPU support matrix specifying otherwise:
https://developer.nvidia.com/video-encode-decode-gpu-support-matrix

Your feedback on this is appreciated.
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