[ovs-discuss] xenServer and openVswitch 1.0.99

Juan Tellez juan at embrane.com
Thu Feb 2 01:18:35 UTC 2012


XenServer 6.0 is currently running 1.0.99 OpenVswitch.

We see excessive CPU consumption by ovs-vswitchd when running vlan traffic:

PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
 6814 root      10 -10 16692  11m 1044 R 89.2  0.4   3339:02 ovs-vswitchd
 1617 root      20   0     0    0    0 S 39.0  0.0   1074:23 netback/3
 1615 root      20   0     0    0    0 S 24.1  0.0   1118:15 netback/1
 1614 root      20   0     0    0    0 R 10.2  0.0 995:14.82 netback/0
 1616 root      20   0     0    0    0 S 10.2  0.0 621:26.15 netback/2

We also suspect vswitchd as responsible for dropping packets.

    39:          RX packets:494125 errors:0 dropped:0 overruns:0 frame:0
     40:          TX packets:519707 errors:0 dropped:8357 overruns:0 carrier:0
     46:          RX packets:455837 errors:0 dropped:0 overruns:0 frame:0
     47:          TX packets:485736 errors:0 dropped:10118 overruns:0 carrier:0
     53:          RX packets:455547 errors:0 dropped:0 overruns:0 frame:0
     54:          TX packets:484577 errors:0 dropped:5718 overruns:0 carrier:0
     60:          RX packets:455611 errors:0 dropped:0 overruns:0 frame:0
     61:          TX packets:481385 errors:0 dropped:10404 overruns:0 carrier:0
     67:          RX packets:455162 errors:0 dropped:0 overruns:0 frame:0

The question is whether anyone in this list knows if and when Citrix will pick up newer versions of open-vswitch?   If not does anyone recognize this symptoms as a fix that went into perhaps 1.2?

Juan Tellez
Chief Architect
Embrane

"I have made this letter longer than usual, only because I have not had time to make it shorter."
-- 17th-century French philosopher and mathematician, Blaise Pascal (1623-62)

H: 510-654-7104
C: 510-468-9260
Skype: juan.m.tellez

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