Why does the network bandwidth of LWIP application not match?

[A-Jay]

Hi,

I used the Example program to test the network bandwidth through JPerf Application. The Example program set the bandwidth speed of 1G, but the default initial bandwidth speed can only run to 2Mbits/sec. After adjusting the configuration of the lwipopts.h file, now it can run to 45Mbits/sec, which still does not match the set bandwidth.

MCU: S32R45, M7

System: FreeRTOS

TCP/IP: lwip

Hope to be able to answer!

Attached is the lwipopts.h file.

[namnguyenviet]

Hello @A-Jay 

The performance was not good enough as you can see, unfortunately. We will try to improve it in next S32R release.

Best Regards,

Nam