UDP Packet Loss


Ubuntu 16.04 server
Linux 4.4.0-62-generic #83-Ubuntu SMP Wed Jan 18 14:10:15 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

Single rtsp feed running at about 3.5Mbps

We seem to be experiencing UDP receive packet drops and have tracked this down to the alprd process.
I would expect our hardware and the alprd process to be able to process all the incoming data without issue. /proc/net/udp is showing rx_queue climbing then it hits the OS level, then udp packet drops start happening.

Has anyone else experienced this ? Seems like alprd is unable to drain the incoming socket buffer fast enough