Hi, all
I'm trying to test the l2fwd throughput using
https://github.com/pktgen/Pktgen-DPDK/blob/master/dpdk/examples/pktgen/scripts/rfc2544.lua
. However, the pktgen will receive more packets than it sent out like " Total
sent 14786446 recv 14786597, delta 151". I'm really confused why this will
happen. I have the pktgen machine and l2fwd machine connected to each other
directly and bind the igb_uio to the NIC devices.
Pktgen> *** Test packet size 64 at rate 100%
Total sent 133856261 recv 131517412, delta -2338849
*** Test packet size 64 at rate 50%
Total sent 40208555 recv 40207420, delta -1135
*** Test packet size 64 at rate 25%
PMD: ixgbe_set_rx_function(): Vector rx enabled, please make sure RX burst size
no less than 32.
Total sent 14786446 recv 14786597, delta 151
*** Test packet size 64 at rate 37%
PMD: ixgbe_set_rx_function(): Vector rx enabled, please make sure RX burst size
no less than 32.
Total sent 26824256 recv 26823587, delta -669
Any hints will be really helpful, thanks!
Thanks
--jyh
