Node.js runtime memory metrics, provided by spectator-js-nodejsmetrics.
The following dimensions are common to the metrics published by this module:
nodejs.version: The version of the Node.js runtime.
Resident Set Size, which is the total memory allocated for the process execution. This includes the Code Segment, Stack (local variables and pointers) and Heap (objects and closures).
Total size of the allocated heap.
Memory used during the execution of our process.