Reduce TCP latency

Hi,
Our Apalis module utilizes TCP to communicate with an external device. Now we want to measure the latency by sending a package and waiting for the answer package. The good thing is that this time is nearly constant. Anyway are there any tweaks to reduce the TCP latency, e.g. increaing the interrupt priority or something? Thanks in advance.

hi @qojote

Could you provide the exact version of the hardware and software of your module?

Now we want to measure the latency by sending a package and waiting for the answer package. The good thing is that this time is nearly constant. Anyway are there any tweaks to reduce the TCP latency, e.g. increaing the interrupt priority or something? Thanks in advance.

What is your network setup?
What TCP latency did you get?
What is your application?
Could you share the CPU usage?

Thanks and best regards,
Jaski