Imxrt1021 iperf freertos throughput.

[Rp777]

Hi,

I am testing with the iperf example on imxrt1021 through ethernet.

When using bare-metal example i am getting upto 90 - 95mbps speed.

Where as when testing with freertos i am able to achieve upto 5mbps only.

I tried increasing the TCP_WND(set it to maximum (65535)) and increased the  TCPIP_THREAD_PRIO priority(default was 8 reduced until 4), even increased the PBUF_POOL_SIZE as well.

Can anyone give any pointers on this?

What would be the maximum throughput we can expect using freertos?

[danielchen]

Hi Rp777:

Don't test the performance before.  But you can refer to below article for maximizing lwip throughput.

https://lwip.fandom.com/wiki/Maximizing_throughput

Regards

Daniel

[Rp777]

Thank you for the reference @danielchen will look into it.