Security

Hello, there is a srx345 with the following config:

set class-of-service forwarding-classes queue 2 icmp_prio
set class-of-service forwarding-classes queue 2 priority low
set class-of-service scheduler-maps CoS forwarding-class icmp_prio scheduler icmp
set class-of-service schedulers icmp transmit-rate percent 25
set class-of-service schedulers icmp buffer-size percent 25
set class-of-service schedulers icmp priority low

set firewall filter ICMP_PRIO term 1 from protocol icmp
set firewall filter ICMP_PRIO term 1 then forwarding-class icmp_prio
set firewall filter ICMP_PRIO term 1 then accept
set firewall filter ICMP_PRIO term 2 then accept

the ping works horrible, thats why CoS was implemented in the first place, slight improvement after COS:

Laptop@192-168-0-82 ~ % ping 65.199.16.62
PING 65.199.16.62 (65.199.16.62): 56 data bytes
64 bytes from 65.199.16.62: icmp_seq=0 ttl=53 time=146.049 ms
64 bytes from 65.199.16.62: icmp_seq=1 ttl=53 time=152.943 ms
64 bytes from 65.199.16.62: icmp_seq=2 ttl=53 time=153.102 ms
64 bytes from 65.199.16.62: icmp_seq=3 ttl=53 time=523.322 ms
Request timeout for icmp_seq 4
64 bytes from 65.199.16.62: icmp_seq=4 ttl=53 time=1569.506 ms
64 bytes from 65.199.16.62: icmp_seq=6 ttl=53 time=149.105 ms
64 bytes from 65.199.16.62: icmp_seq=7 ttl=53 time=149.096 ms
64 bytes from 65.199.16.62: icmp_seq=8 ttl=53 time=148.216 ms
64 bytes from 65.199.16.62: icmp_seq=9 ttl=53 time=147.571 ms
Request timeout for icmp_seq 10
64 bytes from 65.199.16.62: icmp_seq=10 ttl=53 time=1481.599 ms
64 bytes from 65.199.16.62: icmp_seq=12 ttl=53 time=148.516 ms
^C
--- 65.199.16.62 ping statistics ---
13 packets transmitted, 11 packets received, 15.4% packet loss

I am out of ideas, can you help?