On (03/16/16 11:19), zhuyj wrote: > > Thanks for your reply. > Yesterday I made tests with rds-tools. It is very pity that I can > not reproduce my problem with rds-tools. > > But with pktgen tools, I can reproduce this problem easily. And I > found that if I set the packet size to 17792 or less than this size, > this problem would not occur. But if I set the packet size > 17792, > for example 17793, my problem would occur.
I think it might have to do with number of sockets/cpu/cores and the irq balancing issues. > As such, maybe the packet size triggers my problem. I am not sure > that the packet size will trigger your size. In my case I did try against netperf request-response (but that is single threaded) and iperf (but that is unidirectional, i.e., it is not a bidirectional request-response test) perhaps if you share the pktgen config (did you change the code itself)? some of the i40e experts at intel (who are also on the to/cc lists of this mail) can try it out themselves? I still think that the fundamental problem can be identified by looking for what's causing the mdd event. It must be some type of bug, because ixgbe works fine for me, and this seems like a regression on that performance. --Sowmini ------------------------------------------------------------------------------ Transform Data into Opportunity. Accelerate data analysis in your applications with Intel Data Analytics Acceleration Library. Click to learn more. http://pubads.g.doubleclick.net/gampad/clk?id=278785231&iu=/4140 _______________________________________________ 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
