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From: zhilong zheng <zhengzl0715@gmail.com>
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Date: Sat, 22 Jul 2017 00:05:51 +0800
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Subject: [dpdk-users] low Tx throughputs in DPDK with Mellanox ConnectX-3
	card
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Hi all,

I have some problem when generating packets to the Mellanox ConnectX-3 =
dual 40G ports card from the latest pktgen-dpdk.

The problem is that it can only generate ~22Gbps per port (actually I =
just use one port.), not saturating the 40G port. This server has two =
12-cores E5-2650 v4 @2.20GHz cpus and 128G 2400MHz DDR4 memory. The DPDK =
version is 16.11.

This is the driver bound to the NIC:   0000:81:00.0 'MT27500 Family =
[ConnectX-3]' if=3Dp6p1,p6p2 drv=3Dmlx4_core unused=3D
I guess that it=A1=AFs the problem of driver. The document shows the =
driver name should be librte_pmd_mlx4 (url: =
http://dpdk.org/doc/guides/nics/mlx4.html =
<http://dpdk.org/doc/guides/nics/mlx4.html>), however when completing =
installation, it=A1=AFs bound to mlx4_core.

Any clue about this problem? And whether it=A1=AFs caused by the driver =
or others?

Many thanks,
Zhilong.