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AM335X: Linux-RT kernel vs. Preempt-RT patch

Sung-IL
Mastermind 31300 points

Dear Champs,

Is there any real-time performance difference  between RT linux kernel and PREEMPT-RT patch?

I found there were RT-linux kernel released for AM437x and AM57x, but there was not for AM335x.

So, I'm wondering why there is no RT-linux SDK for AM335x, and want to check if the real-time performance of PREEMPT-RT patch is enough for AM335x.

My customer is in trouble due to interrupt latency issue although they applied PREEMPT-RT patch, and want to check this.

Thanks and Best Regards,

SI.