Jitter of EtherCAT master firmware running on Orin

Hi, we used Orin 64GB moudle to run a EtherCAT master on embodied intelligent robot, we found that the jitter of EtherCAT packet was too big to use.
The command that sudo cyclictest --mlockall --smp --priority=80 --interval=200 --distance=0.
Pls show some docs about EtherCAT on Orin, thanks!

Hi,
Here are some suggestions for the common issues:

1. Performance

Please run the below command before benchmarking deep learning use case:

$ sudo nvpmodel -m 0
$ sudo jetson_clocks

2. Installation

Installation guide of deep learning frameworks on Jetson:

3. Tutorial

Startup deep learning tutorial:

4. Report issue

If these suggestions don’t help and you want to report an issue to us, please attach the model, command/step, and the customized app (if any) with us to reproduce locally.

Thanks!

Hi,
Please execute sudo jetson_clocks and see if there is improvement. For further check, you can run sudo tegrastats to check the system status.

hello, we could get some implovement abviously if setting Orin in MAXN mode. But it is not enough. I think the reasonable mathod is below:

  1. Set Orin to MAXN mode;–we can do it.
  2. Using SOCK-RAW to inact with MAC, breaking through OSI model;–we can do it.
  3. Using a Real-Time Kernel; --Need NV help or Patch or Documents.

Please refer to Kernel Customization — NVIDIA Jetson Linux Developer Guide 1 documentation

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