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Elixir Cookbook by Paulo A Pereira

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Inspecting your system with Observer

The command line isn't the only way to get information on an Erlang VM. There is a GUI tool named Observer that allows access to information in a more convenient way.

If a GUI-enabled system is available, Observer allows us to open multiple windows with information on the whole system's statistics or even an individual process of that running system.

Getting ready

Start an IEx session.

How to do it…

To use the Observer GUI application, we will follow these steps:

  1. Start the Observer application:
    iex(1)> :observer.start
    :ok
    
  2. A new window with a tabbed interface will open, and the first information displayed shows CPU information, memory usage, system information, and statistics, as shown in the following screenshot: ...

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