[dpdk-dev] DPDK Performance issue with l2fwd

2014-07-12 Thread zachary....@cas-well.com
Hi Bruce: Thanks for your reply so much. All my test are using 1518 byte packets and keep the criteria which I told before due to I need to know how many Gb can be handle in our platform. Originally, I think it should no any limitations in DPDK. But, it seems a little surprised for me when I get

[dpdk-dev] DPDK Performance issue with l2fwd

2014-07-11 Thread zachary....@cas-well.com
Hi Bruce: Thanks for your suggestion. I have tried to use testpmd to test 16 ports today. The result is so Interested. It can work, although some ports get low performance (only get 80%). Besides, I also do another test in l2fwd. I tried to use 82580 * 16 ports in the same platform with l2fwd

[dpdk-dev] DPDK Performance issue with l2fwd

2014-07-10 Thread zachary....@cas-well.com
Hi Alex: Thanks for your help. I forget to describe some criteria in my original post. At first, I has confirmed my 82599 has connected by PCIe Gen3 (Gen3 x8) speed. The theoretical bandwidth can support over 160G in total. Hence, It should get full speed in my test. Second, I have ever check

[dpdk-dev] DPDK Performance issue with l2fwd

2014-07-10 Thread zachary....@cas-well.com
Hey Guys, Recently, I have used l2fwd to test 160G (82599 10G * 16 ports), but I got a strange pheromone in my test. When I used 12 ports to test the performance of l2fwd, it can work fine and achieve 120G. But it got abnormal when I using over than 12 port. Part of ports seems something wrong