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 > > Seems we need to try limit rate on ixgbe? Suggest please what i need to do? > Because this is WAN of course somethere can be some losses, but looks > like igb recover tcp_window faster than ixgbe, can it be issue? >
I am not an expert when it comes to setting up rate limiting. What you would need to do is setup a qdisc and configure it to limit your outgoing traffic. You can probably find more information on how to do that on the web as what you are seeing could be buffer bloat. A good test for latency would be to try sending pings while running your throughput test. You may see a significant increase in latency and dropped packets with the pings if the issue is something such as buffer bloat. Other than that the only other thing I can really recommend would be to double check your test protocol. How are you testing the 82574/e1000e interface versus the 82599/ixgbe interface? I notice they are both containing IPs on the same subnet. Are the cards in different systems or in the same system? If they are in the same system are you making certain to disconnect the port that is not under test? Do they both show the same ping time or different ping times? Also what kind of results do you see if you don't go through the internet, but instead just send traffic to a local port on the same switch? Thanks, Alex ------------------------------------------------------------------------------ Get 100% visibility into Java/.NET code with AppDynamics Lite! It's a free troubleshooting tool designed for production. Get down to code-level detail for bottlenecks, with <2% overhead. Download for free and get started troubleshooting in minutes. http://pubads.g.doubleclick.net/gampad/clk?id=48897031&iu=/4140/ostg.clktrk _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
