[Bug 187718] [igb] UDP bad performance and out-of-order packet with iperf3 and igb(4) drivers

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=187718

Rodney W. Grimes <rgrimes at FreeBSD.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rgrimes at FreeBSD.org

--- Comment #4 from Rodney W. Grimes <rgrimes at FreeBSD.org> ---
I suspect that the iperf3 data here is pretty meaningless as the single thread
has saturated a core (data shows 96% cpu usage) and high packet losses,
probably caused by that saturation.

To get meaningful data from iperf3 you must insure you do not saturate the
single thread core it is running on.  I also suggest locking it to a core with
affinity.

-- 
You are receiving this mail because:
You are the assignee for the bug.