XL710's rate only reach 2.8Gbps

[Xiande]

Hi,

I I designed the PCB board,used XCZU19EG and FTXL710-AM, XCZU19EG PS connected to FTXL710-AM by PCIE 2.0 x4,below is the function block.

The firmware is XL710_X710_7p20_SFI_Backplane_MCTP_CFGID7p2_Quad.

By the way, the FPGA XCZU19EG contains a A53 ARM core, the CPU frequency is only 1.2Gbps.

System is linux-5.15.

when the Board came back,I tested it by iperf tool, and found that the rate can only reach 2.8Gbps. In my project, I only need one 10Gbps, so could anyone help me analysis the reason ? and how can I improve the rate ?

Thanks!

[Diego_INTEL]

Hello @Xiande,

Thank you for contacting Intel Embedded Community.

All ethernet related forums should be handled by the Ethernet community but I will investigate this further and let you know if I find something that may be of help.

Best regards,

@Diego_INTEL