Reducing ethernet latency

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Reducing ethernet latency

Contributor IV


I need to reduce the Ethernet latency in a imx6 based system. I am using raw socket, in Linux.

I had some improvements, setting the task affinity and interrupt affinity, but I am wondering if I can tweak the fec driver in term of code or registers to reduce latency. Of course I am not interested on maintaining good throughput performance.

Besides the driver and the fec subsystem, can I reducing latency modifying interrupt priority inside the  AVIC? In case of affirmative answer which are the registers to be modified?

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