Hi, I am starting to experience Circular buffer overrun errors. This errors are more frequent than before. The only change that I made was to add more ffmpeg instances (from 24 to 30/35). All instances are on a nvidia M2000 card. From man and other google sources I understood this error usually means slow network performance, but I suspect it is not the case here as I am using mumudvb locally to grab video from 3 dual channel tuners and deliver multicast data on lo interface to the card. The load on GPU is approx 25%. RAM on card is approx 55% used. I think I am hitting a bottleneck. Anyone experienced enough to point me to the right direction?
Thanks +-----------------------------------------------------------------------------+ | NVIDIA-SMI 384.111 Driver Version: 384.111 | |-------------------------------+----------------------+----------------------+ | GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC | | Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. | |===============================+======================+======================| | 0 Quadro M2000 Off | 00000000:01:00.0 Off | N/A | | 74% 75C P0 39W / 75W | 2424MiB / 4038MiB | 25% Default | +-------------------------------+----------------------+----------------------+ top - 13:07:55 up 27 min, 1 user, load average: 4.71, 4.43, 3.72 Tasks: 252 total, 1 running, 251 sleeping, 0 stopped, 0 zombie %Cpu0 : 21.2 us, 5.0 sy, 0.0 ni, 73.5 id, 0.0 wa, 0.0 hi, 0.3 si, 0.0 st %Cpu1 : 24.0 us, 2.7 sy, 0.0 ni, 72.9 id, 0.0 wa, 0.0 hi, 0.3 si, 0.0 st %Cpu2 : 21.6 us, 4.3 sy, 0.0 ni, 73.4 id, 0.0 wa, 0.0 hi, 0.7 si, 0.0 st %Cpu3 : 18.7 us, 4.1 sy, 0.0 ni, 75.5 id, 0.3 wa, 0.0 hi, 1.4 si, 0.0 st %Cpu4 : 18.9 us, 3.0 sy, 0.0 ni, 77.4 id, 0.0 wa, 0.0 hi, 0.7 si, 0.0 st %Cpu5 : 12.5 us, 11.5 sy, 0.0 ni, 75.0 id, 0.0 wa, 0.0 hi, 1.0 si, 0.0 st %Cpu6 : 18.8 us, 3.0 sy, 0.0 ni, 76.5 id, 0.0 wa, 0.0 hi, 1.7 si, 0.0 st %Cpu7 : 18.7 us, 3.7 sy, 0.0 ni, 76.6 id, 0.0 wa, 0.0 hi, 1.0 si, 0.0 st KiB Mem : 7830636 total, 2448092 free, 4157680 used, 1224864 buff/cache KiB Swap: 8253436 total, 8253436 free, 0 used. 2466980 avail Mem Average: IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil Average: lo 14454.69 14454.69 20429.68 20429.68 0.00 0.00 0.00 0.00 Average: eth0 1829.76 26.03 2397.29 9.03 0.00 0.00 1805.93 1.96 ffmpeg version N-87875-gf685bbc Copyright (c) 2000-2017 the FFmpeg developers built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.5) 20160609 configuration: --prefix=/home/mitja/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/mitja/ffmpeg_build/include --extra-ldflags=-L/home/mitja/ffmpeg_build/lib --extra-libs=-lpthread --bindir=/home/mitja/bin --enable-cuda --enable-cuvid --enable-libnpp --extra-cflags=-I/usr/local/cuda/include --extra-ldflags=-L/usr/local/cuda/lib64 --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libspeex --enable-nonfree --enable-nvenc libavutil 55. 79.100 / 55. 79.100 libavcodec 57.108.100 / 57.108.100 libavformat 57. 84.100 / 57. 84.100 libavdevice 57. 11.100 / 57. 11.100 libavfilter 6.108.100 / 6.108.100 libswscale 4. 9.100 / 4. 9.100 libswresample 2. 10.100 / 2. 10.100 libpostproc 54. 8.100 / 54. 8.100 Hyper fast Audio and Video encoder _______________________________________________ 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".
