topic Re: How to Monitor LLCE CPU/Memory Usage on S32G3-VPN-RDB Running Linux in S32G

How to Monitor LLCE CPU/Memory Usage on S32G3-VPN-RDB Running Linux

A_VIJAYA7 — Thu, 26 Jun 2025 14:48:46 GMT

Hi, I am working on the NXP S32G3-VPN-RDB platform running Linux, and I am using the LLCE (Low Latency Communication Engine) for CAN communication. I would like to monitor the CPU and memory usage of the LLCE to understand its performance and resource utilization. I have tried using standard Linux tools like top and ps, but LLCE does not appear as a user-space process. I would like to know: Is there a supported method to monitor LLCE CPU or memory usage on the S32G3 platform? Are there any diagnostic tools, APIs, or debug logs available in the Linux BSP or SDK for this purpose? If LLCE usage cannot be monitored directly, are there recommended indirect methods (e.g., CAN interface statistics, firmware logs, or performance counters)? Please advise on the correct approach or tools to use for monitoring LLCE performance on this platform. I am using the default Linux BSP provided for the S32G3-VPN-RDB.

Re: How to Monitor LLCE CPU/Memory Usage on S32G3-VPN-RDB Running Linux

carlos_o — Fri, 27 Jun 2025 21:20:27 GMT

Hi @A_VIJAYA7

I need more information about your setup.

Could you provide which BSP version you are using? Ex. BSP 44

The LLCE is running in other cores that function independently of Linux so, when you say you want to monitor the CPU and memory usage of the LLCE which cores are you wanting to monitor? (The A53 cores that are the ones running linux are only communicating with the driver to the LLCE, so the CPU and Memory used by this are only related to the driver).

Re: How to Monitor LLCE CPU/Memory Usage on S32G3-VPN-RDB Running Linux

A_VIJAYA7 — Mon, 30 Jun 2025 05:35:19 GMT

Hi,
I am currently using BSP version 43. I would like to know the CPU load and memory usage of the LLCE CPU cores. Is it possible to retrieve the CPU load information for the LLCE cores?

Re: How to Monitor LLCE CPU/Memory Usage on S32G3-VPN-RDB Running Linux

carlos_o — Mon, 30 Jun 2025 22:38:31 GMT

Hi @A_VIJAYA7,

The RAM Size used can be review at the Quality Package .zip file that you can download

For LLCE Cores there is not a way to review the CPU load that your application is using, the main objective of this module is to perform an accomplish the specifications that are listed at the LLCE User Manual.