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Controlling Nodejs RAM Usage

 When starting the node app, use the --max_old_space_size option. This variable is in megabytes. This is more or less controlling how much memory can be used for garbage collection. It is recommended to set it to 3/4 of the available RAM on your machine. It's useful to try matching your dev and production environment!

Example: node --max_old_space_size=512 app_to_start.js.

Alternatively, you can also use the NODE_OPTIONS environment variable.


Source from the nodejs documentation

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