Hi,
after upgrade of:
* kernel from 4.4.0-1 to 4.17.0-1
* conntrackd from 1.4.3-3 to 1.4.5-1
we noticed increase of cpu usage. When the cpu is at the highest peak
load we've seen an increase in forward packet time. The increase in time
is from 0.1 ms to 200-300 ms and 1s
We can observe the problem on two machines:
1. two sic-core E5-2430 v2 @ 2.50GHz with traffic like 2,5Gbps
2. two ten-core E5-2640 v4 @ 2.40GHz with traffic like 1,1Gbps
The problem starts with the traffic level 600-700Mbps.
Has anyone observed this type of problem?
Below conntrackd confif file
---
General {
HashSize 8192
HashLimit 1048576
LogFile off
Syslog on
LockFile /var/lock/conntrackd.lock
UNIX {
Path /var/run/conntrackd.sock
Backlog 20
}
SocketBufferSize 262142
SocketBufferSizeMaxGrown 655355
Filter {
Address Ignore {
IPv4_address 127.0.0.1 # loopback
}
}
}
Stats {
LogFile off
Syslog on
}
----
--
---
Thanks
Adam Nieścierowicz
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