topic Imxrt1021 iperf freertos throughput. in i.MX Processors

Imxrt1021 iperf freertos throughput.

Rp777 — Thu, 12 May 2022 09:24:02 GMT

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?

Re: Imxrt1021 iperf freertos throughput.

danielchen — Thu, 26 May 2022 14:44:44 GMT

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

Re: Imxrt1021 iperf freertos throughput.

Rp777 — Fri, 27 May 2022 08:07:17 GMT

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