[ovs-discuss] CPU Utilization

Ben Pfaff blp at nicira.com
Sat May 2 16:37:57 UTC 2015


On Sat, May 02, 2015 at 11:27:36AM -0400, Mohammad Banikazemi wrote:
> I know this has been reported (and fixed in some cases) earlier but in our
> setup with
> Ubuntu 14.04 and 10 Gbps links, using something like Iperf with a single
> flow we max out at a 3-4 Gbps and see 100% CPU utilization on one of the
> cores. Is this expected? 

No.

> If not, are there configuration parameters we need to adjust? Any
> particular system info needed to know what is happening? Any
> suggestions or pointers to where we can find more information is much
> appreciated.

What's your flow table?  What's your OVS version?  What's your hardware?



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