freeze background process
#freeze background process kill -STOP $PID #unfreeze the proccess kill -CONT $PID
example of Linux process pause
kill -STOP 169822 kill -STOP 178327
Status in ps
root@server3:~# ps -waux |grep -e COMMAND -e ffmpeg |grep -v grep USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND www-data 169821 0.0 0.0 2576 1536 ? S 13:51 0:00 sh -c ffmpeg -threads 3 -i /tmp/oc_tmp_OhptOg-.MOV -movflags use_metadata_tags -map_metadata 0 -vf zscale=t=linear:npl=550,format=gbrpf32le,tonemap=tonemap=mobius:desat=0,zscale=p=bt709:t=bt709:m=bt709:r=tv,format=yuv420p -vcodec libx264 -preset VerySlow -strict -2 /tmp/oc_tmp_OhptOg-_out_.mp4 www-data 169822 659 8.3 7759376 5459868 ? Tl 13:51 1620:40 ffmpeg -threads 3 -i /tmp/oc_tmp_OhptOg-.MOV -movflags use_metadata_tags -map_metadata 0 -vf zscale=t=linear:npl=550,format=gbrpf32le,tonemap=tonemap=mobius:desat=0,zscale=p=bt709:t=bt709:m=bt709:r=tv,format=yuv420p -vcodec libx264 -preset VerySlow -strict -2 /tmp/oc_tmp_OhptOg-_out_.mp4 www-data 178326 0.0 0.0 2576 1408 ? S 17:45 0:00 sh -c ffmpeg -threads 3 -i /tmp/oc_tmp_MHkD3c-.MOV -movflags use_metadata_tags -map_metadata 0 -vf zscale=t=linear:npl=550,format=gbrpf32le,tonemap=tonemap=mobius:desat=0,zscale=p=bt709:t=bt709:m=bt709:r=tv,format=yuv420p -vcodec libx264 -preset VerySlow -strict -2 /tmp/oc_tmp_MHkD3c-_out_.mp4 www-data 178327 122 2.2 3649964 1467392 ? Tl 17:45 14:37 ffmpeg -threads 3 -i /tmp/oc_tmp_MHkD3c-.MOV -movflags use_metadata_tags -map_metadata 0 -vf zscale=t=linear:npl=550,format=gbrpf32le,tonemap=tonemap=mobius:desat=0,zscale=p=bt709:t=bt709:m=bt709:r=tv,format=yuv420p -vcodec libx264 -preset VerySlow -strict -2 /tmp/oc_tmp_MHkD3c-_out_.mp4
resume linux process
kill -CONT 169822 kill -CONT 178327
