Hi, we are running lvs for couple of years and upgraded last month to 10G infrastructure.
Now, we ran into some kind of performance issues: Everything works fine until we reach at througput of 1600-2000Mbit/s and 193.906 pkt/s OUT 117.898 pkt/s IN Then we run into the following situation: CPU load average increases up to 22, CPU Utilization increase up to 60% Interface counter shows growing paket drops/discards Setup: lvs-nat with WLC and session-persistence 60s, ubuntu 18.04 LTS, HW is Dual-Socket 2x 12 core xeon GOLD 6146 @ 3,2GHz with Hyperthreading enabled, The loadbalancer is used to balance VPN UDP nat-t connections only (UDP 500/4500) I found some article about performance issues with ip_conntrack. On the system nf_conntrack is loaded and (apperntly) used by ip_vs. /proc/sys/net/ipv4/vs/conntrack is set to 0 It looks like that some kind of table (nf?) reaches limitation. Any suggestions to improve performance and/or fix this issue= Thanks a lot. regards Marco _______________________________________________ Please read the documentation before posting - it's available at: http://www.linuxvirtualserver.org/ LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org Send requests to lvs-users-requ...@linuxvirtualserver.org or go to http://lists.graemef.net/mailman/listinfo/lvs-users
