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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
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