Hello Dmitry, 06/12/2013 14:22, Dmitry Vyal : > The application consists of two threads, first one sends the packets > from one port and second receives them on another. These are 2 ports of > four-ports 1Gb NIC. It's detected as Intel Corporation 82576 Gigabit > Network Connection (rev 01). Ports are connected with a patch cord. [...] > So looks like DPDK is buffering first 21 packets and doesn't flush the > buffer in the first run even if I wait for several seconds after last > packet is sent. In second run we see it forwards packets one by one > after first burst of size 21. > > I tried on DPDK-1.3.1 and DPDK-1.5.1 observing similar results. Is it > expected behavior?
Have you made any progress on this bug ? Is it an igb-specific issue ? Can you reproduce it with ixgbe ? Thank you to keep us informed -- Thomas