[Edited Message Follows] Hi I test VPP19.01 NAT plugin performance in NAT44 dynamic translations mode with 40 CPU core .
at the beginning show error command is look like : vpp# vpp# show errors Count Node Reason 15 nat44-out2in-worker-handoff congestion drop 5 nat44-in2out-worker-handoff congestion drop 414 nat44-out2in Good out2in packets processed 537254 nat44-out2in No translation 11649 nat44-in2out-slowpath Good in2out packets processed 256125 nat44-in2out Good in2out packets processed 14 llc-input unknown llc ssap/dsap 14 nat44-out2in-worker-handoff congestion drop 2 nat44-in2out-worker-handoff congestion drop 212 nat44-out2in Good out2in packets processed 534239 nat44-out2in No translation 11668 nat44-in2out-slowpath Good in2out packets processed 257012 nat44-in2out Good in2out packets processed 20 nat44-out2in-worker-handoff congestion drop 1 nat44-in2out-worker-handoff congestion drop 130 nat44-out2in Good out2in packets processed 411670 nat44-out2in No translation 11692 nat44-in2out-slowpath Good in2out packets processed 257286 nat44-in2out Good in2out packets processed 10 nat44-out2in-worker-handoff congestion drop 144 nat44-out2in Good out2in packets processed 320990 nat44-out2in No translation 11670 nat44-in2out-slowpath Good in2out packets processed 256625 nat44-in2out Good in2out packets processed 9 nat44-out2in-worker-handoff congestion drop 3 nat44-in2out-worker-handoff congestion drop 123 nat44-out2in Good out2in packets processed 323996 nat44-out2in No translation [ . . . ] but after a few minutes show error commands show nothing and I just have rx-miss on all interface : vpp# show interface Name Idx State MTU (L3/IP4/IP6/MPLS) Counter Count TenGigabitEthernet21/0/0 5 up 9000/0/0/0 rx-miss 228482011 TenGigabitEthernet21/0/1 6 up 9000/0/0/0 rx-miss 74391436 TenGigabitEthernet24/0/0 7 up 9000/0/0/0 rx-miss 231428640 TenGigabitEthernet24/0/1 8 up 9000/0/0/0 rx-miss 283173016 TenGigabitEthernet4/0/0 1 up 9000/0/0/0 rx-miss 12672280 TenGigabitEthernet4/0/1 2 up 9000/0/0/0 rx-miss 6230655 TenGigabitEthernet7/0/0 3 up 9000/0/0/0 rx-miss 10559818 TenGigabitEthernet7/0/1 4 up 9000/0/0/0 rx-miss 6825264 local0 0 down 0/0/0/0 I had this issue on VPP18.04 and thought this is issue when handoff queue is congested (multiple workers),and this was fixed in 18.10 but nothing has changed. Is it still a bug in handoff ?? Output of perf top ( just nat44_worker_handoff_fn_inline exist )
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