Jtop refresh setting for custom flask server

Robotics & Edge Computing Jetson & Embedded Systems Jetson AGX Orin
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I’m currently trying to monitor the energy consumption of my AGX Orin jetson with the python package jtrop. I’m using prometheus and grafana to get a remote visualisation, and I’d like to know how I can increase the jtop sample rate from my prometheus exporter to python using flask. I’m using an instantiation of the type :

        self._jetson = jtop()
        self._jetson.start()

I’ve already set the prometheus scrapping time to measure every 100ms and I’d like Jtop to also provide a metric every 100ms. I’ve tried various things with the ‘interval’ variable but I haven’t managed to get the desired behaviour

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Hi charles.fonbonne,

Are you using the devkit or custom board for AGX Orin?
What’s your Jetpack version in use?

Please share the detailed steps how do you use them.

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I am using the AGX Orin devkit with jetpack 6.1, my goal here is to use the jetson-stats python library to export the metrics i want trough a flask server and acess them with grafana and prometheus for vizualisation. Prometheus just send a get request to the server and with that i can get the values of cpu usage, gpu usage, power usage etc… However i did not suceed to speed up the interval or refresh rate of jetson-stat, so even if i’m getting values every 100ms with prometheus, the server only change its metrics every 1000ms.

I saw that when using the bash jtop command there is a flag called ‘–refresh’ and I wanted to know if there was an equivalent in the python library.

Thank you

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Hi @charles.fonbonne

Thank you for working with jetson-stats!

If you are using Grafana, there are some repositories and forks available on GitHub.

I recommend following established examples to improve the design of your code.jetson_stats/examples at master · rbonghi/jetson_stats · GitHub

Regarding also the sample rate, follow the documentation: jtop - jetson-stats 4.3.1

The 100ms framerate is too high for jtop to manage. Please try a higher timerate, like 500ms.

Best,
Raffaello

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