[ovs-discuss] Even with ovs-controller vswitchd is still heavily used

kevin parker kevin.parker092 at gmail.com
Fri Jun 7 14:46:52 UTC 2013


Can some one please clarify this,why ovs-vswitchd is used even in secure
mode


On Thu, Jun 6, 2013 at 10:58 AM, kevin parker <kevin.parker092 at gmail.com>wrote:

> and with out controller and in standalone ovs-vswitchd is at ~80% for the
> same traffic.
>
> using
> *ovs-vsctl -V*
> ovs-vsctl (Open vSwitch) 1.4.2
> Compiled Nov 23 2012 12:41:37
>
> *ovs-controller -V*
> ovs-controller (Open vSwitch) 1.4.0+build0
> Compiled Feb 18 2013 13:13:22
> OpenFlow versions 0x1:0x1
>
>
> On Thu, Jun 6, 2013 at 10:28 AM, kevin parker <kevin.parker092 at gmail.com>wrote:
>
>> Mostly HTTP,
>>
>> For confirming bench marked Apache with ab, ovs-vswitchd reached 100% and
>> ovs-controller 14%
>>
>> ovs-dpctl show at the time of benchmark
>>
>> system at xenbr0:
>> lookups: hit:55391 missed:966296 lost:0
>> flows: 0
>>  port 0: xenbr0 (internal)
>> port 3: vif2.1
>>  port 4: vif1.1
>>
>> Do i need to make any changes in ovs-controller.
>>
>> Thanks,
>> Kevin.
>>
>>
>> On Wed, Jun 5, 2013 at 9:56 PM, Ben Pfaff <blp at nicira.com> wrote:
>>
>>> On Wed, Jun 05, 2013 at 07:11:44PM +0530, kevin parker wrote:
>>> > Hi,
>>> >
>>> >      i have  ovs-controller with default setting  (ovs-controller -v
>>> > ptcp:6633).
>>> >
>>> >
>>> > on xenserver host with ovs
>>> >
>>> > *ovs-vsctl get-fail-mode xenbr0*
>>> > *secure*
>>> >
>>> > I set it to secure mode to test that host should not use vswitchd for
>>> flows
>>> > and forward it to controller for generating flow .*
>>> > *
>>> >
>>> > *ovs-vsctl get-controller xenbr0*
>>> > *tcp:10.10.10.183:6633*
>>> > *
>>> > *
>>> > * ovs-dpctl show
>>> > *
>>> > *
>>> > hit:8560336 missed:1060122 lost:0
>>> > flows: 81
>>> > *
>>> >
>>> > where xenbr0 is an isolated bridge with no connection to host
>>> interfaces.
>>> > No other bridge is connected to this controller.
>>> > When i ping vms on same  host l can see  ovs-vswitchd using 35% CPU.
>>> >
>>> > and ovs-controller almost 11% CPU and some times non responsive ssh
>>> session
>>> > on hosts.
>>>
>>> What kind of trafffic do you have in your network?
>>>
>>
>>
>
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