Sorry for repeat! I should have removed the useless pieces!
> +Hardware platform Network Interface Card Essential requirements: > +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ~~~~ > + > +1. Get an high end Intel(r) NIC, e.g: Intel(r) XL710. > + > +2. Make sure each NIC has flashed the latest version of NVM/firmware, > +if there > is. > + > +3. Use PCIe Gen3 slots, such as Gen3 x8 or Gen3 x16 because PCIe Gen2 > +slots > can't provide enough bandwidth for 2x10G and above. Pci gen2 x 8 may not provide enough, pci gen2 x 16 may support that. > + > +4. When inserting NICs to the PCI slots, be careful about the NUMA. > +If you will + > +Example > +------- > + > +Below is an case of running dpdk l3fwd sample to get high performance > +with > Intel platform and NIC. > + > +**Note**: The scenario is to get best performance with two > +Intel(r)XL710 40G > ports. See below Figure1 as the performance test setup. > + > +.. figure:: img/pf_performance_test_setup.* > + > +**Figure 1. PF_Performance_Test_setup** > + > + > +1. Insert two NICs(Intel(r)XL710) into the platform, and use one port > +per card to > get best performance. The reason using two NICs is the PCIe Gen3's > limitations. > **Note**: As PCIe Gen3 can't provide 80G bandwidth for two 40G ports, > but two Pci gen3 x 8 cannot provide ....
