Hi FFmpeg community, After installing the latest FFmpeg 5.0.1 from 4.3, I am seeing increased Avg CPU Utilization and increased number of threads for the same workload compared to FFmpeg v4.3.
*Specifically,* 1. Increased Avg CPU utilization upto 15% - compared to version 4.3 for the same workload. 2. Increase in the number of threads per ffmpeg process by 3x - compared to version 4.3 for the same type of media conversion workload *My query:* 1. Is this expected? If yes, any specific reason? If not, any configuration/tuning to be done? 2. Is there a way we can tune ffmpeg to reduce the CPU & thread counts back to v4.3 levels? *Hardware:* Intel(R) Xeon(R) CPU E5-2680 v3 @ 2.50GHz / 48 CPUs Thread(s) per core: 2 Core(s) per socket: 12 Socket(s): 2 *Command used:* ffmpeg -y -v error -progress tcp://127.0.0.1:44477 -analyzeduration 25M -probesize 50M -thread_queue_size 2048 -err_detect aggressive -fflags +discardcorrupt -abort_on empty_output_stream -i udp:// 1.1.1.1:9000?fifo_size=10000000&overrun_nonfatal=1 -filter_complex [i:0x25]yadif[vout];[vout]split=4[out0][out1][out2][out3];[out0]setdar=256/144[v0];[out1]setdar=512/288[v1];[out2]setdar=1024/576[v2];[out3]setdar=1280/720[v3];[i:0x27]aresample=async=1:min_hard_comp=0.100000:first_pts=0[aout];[aout]asplit=4[a0][a1][a2][a3] -f flv -vcodec libx264 -s 256x144 -r 25/1 -b:v 200000 -acodec libfdk_aac -ar 48000 -b:a 32000 -sc_threshold 0 -pix_fmt yuv420p -flags +global_header+cgop -profile:v baseline -level 3.0 -preset fast -nal-hrd cbr -maxrate 200000 -minrate 200000 -bufsize 400000 -g 50 -map [v0] -map [a0] rtmp://lab2.com/rtmp/push/testfeed1 -f flv -vcodec libx264 -s 512x288 -r 25/1 -b:v 500000 -acodec libfdk_aac -ar 48000 -b:a 64000 -sc_threshold 0 -pix_fmt yuv420p -flags +global_header+cgop -profile:v baseline -level 3.0 -preset fast -nal-hrd cbr -maxrate 500000 -minrate 500000 -bufsize 1000000 -g 50 -map [v1] -map [a1] rtmp://lab2.com/rtmp/push/testfeed2 -f flv -vcodec libx264 -s 1024x576 -r 25/1 -b:v 1000000 -acodec libfdk_aac -ar 48000 -b:a 64000 -sc_threshold 0 -pix_fmt yuv420p -flags +global_header+cgop -profile:v main -level 3.1 -preset fast -nal-hrd cbr -maxrate 1000000 -minrate 1000000 -bufsize 2000000 -g 50 -map [v2] -map [a2] rtmp://lab2.com/rtmp/push/testfeed3 -f flv -vcodec libx264 -s 1280x720 -r 25/1 -b:v 1800000 -acodec libfdk_aac -ar 48000 -b:a 64000 -sc_threshold 0 -pix_fmt yuv420p -flags +global_header+cgop -profile:v high -level 4.0 -preset fast -nal-hrd cbr -maxrate 1800000 -minrate 1800000 -bufsize 3600000 -g 50 -map [v3] -map [a3] rtmp://lab2.com/rtmp/push/testfeed4 *FFmpeg 4.3 version:* ffmpeg -version ffmpeg version 4.3 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 8 (GCC) configuration: --prefix=/root/ffmpeg-4.3/ffmpeg_build --pkg-config-flags=--static --extra-cflags='-I/root/ffmpeg-4.3/ffmpeg_build/include -I/usr/local/cuda/include' --extra-ldflags='-L/root/ffmpeg-4.3/ffmpeg_build/lib -L/usr/local/cuda/lib64' --extra-libs=-lpthread --extra-libs=-lm --bindir=/root/ffmpeg-4.3/bin --enable-gpl --enable-libfdk_aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libx264 --enable-libx265 --enable-cuda --enable-cuvid --enable-nvenc --enable-libnpp --enable-nonfree --enable-openssl libavutil 56. 51.100 / 56. 51.100 libavcodec 58. 91.100 / 58. 91.100 libavformat 58. 45.100 / 58. 45.100 libavdevice 58. 10.100 / 58. 10.100 libavfilter 7. 85.100 / 7. 85.100 libswscale 5. 7.100 / 5. 7.100 libswresample 3. 7.100 / 3. 7.100 libpostproc 55. 7.100 / 55. 7.100 *FFmpeg 5.0.1 version:*ffmpeg version 5.0.1 Copyright (c) 2000-2022 the FFmpeg developers built with gcc 8 (GCC) configuration: --prefix=/root/ffmpeg-5.0.1-p02/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/root/ffmpeg-5.0.1-p02/ffmpeg_build/include --extra-ldflags=-L/root/ffmpeg-5.0.1-p02/ffmpeg_build/lib --extra-libs=-lpthread --extra-libs=-lm --bindir=/root/ffmpeg-5.0.1-p02/bin --enable-gpl --enable-libfdk_aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree --enable-openssl libavutil 57. 17.100 / 57. 17.100 libavcodec 59. 18.100 / 59. 18.100 libavformat 59. 16.100 / 59. 16.100 libavdevice 59. 4.100 / 59. 4.100 libavfilter 8. 24.100 / 8. 24.100 libswscale 6. 4.100 / 6. 4.100 libswresample 4. 3.100 / 4. 3.100 libpostproc 56. 3.100 / 56. 3.100 Regards, Kousthub _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
