turnserver use too much CPU and memory

[李欣]

hi all:

       I use turnserver in a WebRTC app. we just use stun, not use turn relay service. When In flow reach 100 Mbps, the CPU  usage will reach 1400% , and 

the memory will linear growth.

      I find allocate spend too much memory, so I start the turnserver by:

/usr/local/coturn/bin/turnserver --max-allocate-timeout 1   --stun-only  --no-stdout-log --simple-log --log-file /usr/local/coturn/log/turnserver.log --pidfile /usr/local/coturn/var/run/turnserver/turnserver.pid  

     The memory will stay a certain amount.But cpu still reach 600%.When flow is 100Mbps, the turnserver will receive 211406 packets(each packet length is 62 bytes) every second. 

How to reduce cpu usage? Thank you. 

btw:

CPU info:

Intel(R) Xeon(R) CPU E5-2420 v2 @ 2.20GHz   and 24 processors

Settings for eth0:

Supported ports: [ TP ]

Supported link modes:   10baseT/Half 10baseT/Full 

                        100baseT/Half 100baseT/Full 

                        1000baseT/Full 

Supported pause frame use: Symmetric

Supports auto-negotiation: Yes

Advertised link modes:  10baseT/Half 10baseT/Full 

                        100baseT/Half 100baseT/Full 

                        1000baseT/Full 

Advertised pause frame use: Symmetric

Advertised auto-negotiation: Yes

Speed: 1000Mb/s

Duplex: Full

Port: Twisted Pair

PHYAD: 1

Transceiver: internal

Auto-negotiation: on

MDI-X: on

Supports Wake-on: pumbg

Wake-on: g

Current message level: 0x00000007 (7)

       drv probe link

Link detected: yes