[ovs-dev] [PATCH 00/11] RFC: Improvements in upcall processing code path.

Ben Pfaff blp at nicira.com
Tue Feb 12 22:03:25 UTC 2013


On Mon, Feb 11, 2013 at 04:46:16PM +0200, Jarno Rajahalme wrote:
> - 'udpping' sends 10000000 UDP packets with a unique source and destination
>   port pair to br0 in bursts of 97 packets.  Between bursts it nanosleeps
>   for 50 nanoseconds.  This results into ~80% CPU (core) utilization.

Why are the bursts 97 packets long?

It would be great if you could supply the udpping program.  Ideally,
you'd add it as a mode to the ovs-benchmark program in the utilities
directory, but a quick-and-dirty C program would work too.



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