Why is the memory usage reported by Machine Agent higher than reported by monitoring tools?

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Question

Why is the memory usage reported by Machine Agent higher than reported by monitoring tools such as "htop" and "top"?

Answer

The Machine Agent memory metrics include the total memory used by the processes as well as memory used by the kernel. For example, the metrics include memory used by buffering and disk cache in a Linux environment.

Whereas, the "htop" or "top" commands show only the memory used by the processes.

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