How to monitor the real time memory bandwidth of Jetson AGX Orin?

Robotics & Edge Computing Jetson & Embedded Systems Jetson AGX Orin
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1

How can I accurately obtain bandwidth data of Jetson AGX Orin?

2

I’d like to know the exact value like 18GB/s, not the emc frequence value of sudo tegrastats --interval or sudo cat /sys/kernel/debug/bpmp/debug/clk/emc/rate

4

Hi,
Please try the tool which the user shares;
How to improve Orin module memory bandwidth - #6 by kenny_234

5

Hi,
I’m working on profiling of LLM inference and I’d like to know the mbw data of my program, not the value of a mbw test program of the ability of Orin.
How to monitor the DDR bandwidth of orin - #12 by qyh observed the value through a spcial node which not exist on AGX orin right now, so whether there are another node can read the mbw value?

6

Hi,
You may try

  1. Run $ sudo jetson_clocks to fix EMC clock at maximum
  2. Run your application
  3. Run $ sudo tegrastats to get loading of EMC

You can get the bandwidth like 2133MHz(maximum clock)*60%(loading)