On Mon, 2013-08-12 at 16:40 -0700, Alexander Duyck wrote:
> On 08/12/2013 03:28 PM, Alexey Stoyanov wrote:
> > I done reload of ixgbe with MQ=0,0 and RSS=1,1
> > There are no luck with speed.
> >
> > [  3] local xxx.xxx.185.135 port 5001 connected with yy.yy.74.11 port 5001
> > [ ID] Interval       Transfer     Bandwidth
> > [  3]  0.0-20.0 sec   151 MBytes  63.1 Mbits/sec
> >
> > [  3] local xxx.xxx.185.133 port 5001 connected with yy.yy.74.11 port 5001
> > [ ID] Interval       Transfer     Bandwidth
> > [  3]  0.0-20.0 sec   979 MBytes   411 Mbits/sec

Also please try the nuttcp tool for bandwidth testing, as it reports the
number of retransmits during each run.

if the packets are overrunning a switch buffer somewhere in your network
path, you can use apps like nuttcp to bandwidth limit udp sends in order
to help troubleshoot what your maximum rate is using -R option

an example

server: nuttcp -S
client: nuttcp <serveraddr>

$ nuttcp server
   22.1896 MB /  10.32 sec =   18.0368 Mbps 0 %TX 0 %RX 0 retrans 55.40
msRTT

^^ yeah I know its slow, but it is a VPN.

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