Did you try to use the driver multi queue script to enable multiple RX? (also don't forget to turn off the irq balance)
Here's a better explanation to something similar to yours https://blog.cloudflare.com/how-to-receive-a-million-packets/ *Att,* *Leandro Ribeiro Moreira* * Blog <http://leandromoreira.com.br/>* On Thu, Apr 23, 2020 at 8:10 AM Alexander Petrovsky <askju...@gmail.com> wrote: > Hello! > > I'm experiencing strange softirq skew. Server process only UDP traffic, 4 > cores, but utilized only 2. > > # uname -a > Linux host02 4.19.69-1.el7.x86_64 #1 SMP Thu Aug 29 11:11:09 UTC 2019 > x86_64 x86_64 x86_64 GNU/Linux > > # mpstat -P ALL 1 10 > Linux 4.19.69-1.el7.x86_64 (host02) 04/23/2020 _x86_64_ (4 > CPU) > > 11:03:01 AM CPU %usr %nice %sys %iowait %irq %soft %steal > %guest %gnice %idle > 11:03:02 AM all 0.77 0.00 1.02 0.00 0.00 14.03 > 0.00 0.00 0.00 84.18 > 11:03:02 AM 0 2.04 0.00 0.00 0.00 0.00 2.04 > 0.00 0.00 0.00 95.92 > 11:03:02 AM 1 0.00 0.00 1.04 0.00 0.00 0.00 > 0.00 0.00 0.00 98.96 > 11:03:02 AM 2 0.00 0.00 1.02 0.00 0.00 26.53 > 0.00 0.00 0.00 72.45 > 11:03:02 AM 3 0.00 0.00 1.01 0.00 0.00 26.26 > 0.00 0.00 0.00 72.73 > > # cat /proc/interrupts | grep eth0 > 56: 0 0 0 291671902 PCI-MSI 5767168-edge > eth0-rxtx-0 > 57: 3757 2778 277492047 216 PCI-MSI 5767169-edge > eth0-rxtx-1 > 58: 871 286983758 0 113 PCI-MSI 5767170-edge > eth0-rxtx-2 > 59: 260724548 0 2607 55 PCI-MSI 5767171-edge > eth0-rxtx-3 > 60: 0 0 0 0 PCI-MSI 5767172-edge > eth0-event-4 > > # ipvsadm -Ln > IP Virtual Server version 1.2.1 (size=4096) > Prot LocalAddress:Port Scheduler Flags > -> RemoteAddress:Port Forward Weight ActiveConn InActConn > FWM 245623413 wlc > -> 10.15.193.31:0 Tunnel 1 0 160 > FWM 1962555235 wlc > -> 10.15.194.164:0 Tunnel 1 0 164 > FWM -1996239082 wlc > -> 10.15.194.45:0 Tunnel 1 0 159 > FWM -627923214 wlc > -> 10.15.194.188:0 Tunnel 1 0 159 > FWM 661347975 wlc > -> 10.15.194.46:0 Tunnel 1 0 157 > > Could someone help me, please? > > -- > Alexander Petrovsky > _______________________________________________ > 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 > _______________________________________________ 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