How to know all gems and plugins which I have install in system that are taking memory or not?

Any command to know what gems and plugins are taking how much memory in ruby

No response, very interested

Depending on whether you’re using rbenv or rvm they’ll likely be stored $HOME somewhere like ~/.rbenv or ~/.rvm. Each has commands to list the path that can be found in the documentation.

If you’re using a system ruby or Windows, then personally I have no idea.