The problem is even you using the Tesla P100, and you can see it has 3 NVENC chips inside it. but it has only 1 NVDEC chip, this is very very important. the bottleneck is at decoding side. this is why you got freezing or stutter problem. basically, perhaps you can use Tesla P100 encoding 75 hd1080p channels, but you can not decoding more than 25 hd1080p channels on it.
On Fri, Aug 24, 2018 at 5:51 AM Dennis Mungai <[email protected]> wrote: > No. > > This is as tested on the Tesla P100. > > On Fri, 24 Aug 2018 at 00:26, Pedro Daniel Costa < > [email protected]> > wrote: > > > 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:[email protected]] 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. > > _______________________________________________ > > ffmpeg-user mailing list > > [email protected] > > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > > > To unsubscribe, visit link above, or email > [email protected] > > with subject "unsubscribe". > > _______________________________________________ > > ffmpeg-user mailing list > > [email protected] > > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > > > To unsubscribe, visit link above, or email > > [email protected] with subject "unsubscribe". > _______________________________________________ > ffmpeg-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
