On Sun, May 29, 2011 at 9:33 AM, Juliusz Chroboczek <jch@pps.jussieu.fr> wrote:

> Result - 130+Mbit performance on iperf on the lan (up from 60Mbit),
> which is still pretty low

Are you seeing high CPU load in interrupt context? (Run top.)

Yes. 99% sirq.

Screenshot:

http://www.bufferbloat.net/attachments/download/33/routertest.png

The one in green is the one 'routing', the others (3 out of the 4) are the ones generating traffic with iperf.

-- Juliusz