[ovs-discuss] Issues at high data rate

Ben Pfaff blp at nicira.com
Sat Mar 1 02:48:13 UTC 2014


On Fri, Feb 28, 2014 at 10:18:38AM -0500, Sujayyendhiren RAMARAO SRINIVASAMURTHI wrote:
> *Design changes :*
>  As a research initiative, in OVS kernel module i have integrated a lookup
> feature which takes about 16microseconds per data plane packet additional
> processing time. The implementation is quite stable.
> 
> *General information :*
> - The OVS kernel module runs on a two core X-86 PC.
> - ovs-controller runs on another PC in the same LAN as the OVS PC.
> - Iperf source injects data packets onto the br0 bridge and br1 forwards to
> iperf server. All of these in the same LAN.
> 
> 
> *Issues at high data rate:*
> (i) Beyond 280Mbps datarate packet losses are observed.

There are 62500 16-us intervals in a second.  If your packets are 560
bytes long, then that's 280 Mbps.


More information about the discuss mailing list