On Thu, Mar 23, 2017 at 10:12:18AM +0000, Joao Pinto wrote: > > Hi Corentin, > > Às 10:08 AM de 3/23/2017, Corentin Labbe escreveu: > > Hello > > > > Using next-20170323 produce a huge performance regression on my sunxi > > boards. > > On dwmac-sun8i, iperf goes from 94mbs/s to 37 when sending. > > > > On cubieboard2(dwmac-sunxi), iperf made the kernel flood with > > "ndesc_get_rx_status: Oversized frame spanned multiple buffers" > > and network is lost after. > > > > Reverting aff3d9eff84399e433c4aca65a9bb236581bc082 fix the issue. > > I still try to found which part of this patch mades the performance lower. > > > > Regards > > Corentin Labbe > > > > I have a 4.21 QoS Core with 4 RX + 4 TX and detected no regression. > Could you please share the iperf cmds you are using in order for me to > reproduce > in my side?
simple iperf -c serverip for both board
