https://github.com/clinicjs/notare

https://github.com/clinicjs/notare

Last synced: about 1 month ago
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• Host: GitHub
• URL: https://github.com/clinicjs/notare
• Owner: clinicjs
• License: other
• Created: 2020-05-09T04:56:56.000Z (about 5 years ago)
• Default Branch: main
• Last Pushed: 2020-11-24T21:01:09.000Z (over 4 years ago)
• Last Synced: 2025-04-18T04:48:44.670Z (about 1 month ago)
• Language: JavaScript
• Size: 2.49 MB
• Stars: 53
• Watchers: 5
• Forks: 3
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • Contributing: CONTRIBUTING
  • License: LICENSE
  • Code of conduct: CODE_OF_CONDUCT.md

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README

        
# notare -- Node.js observer

Inspired by Matteo Collina's [climem](https://www.npmjs.com/package/climem)...

Utility for monitoring Node.js performance metrics from the command line.

First, install globally:

```console

$ npm i -g notare

```

Then, within your project:

```console

$ npm i --save-dev notare

$ node -r notare myscript.js

```

Then, from a separate terminal window, run:

```console

$ notare

```

## Screenshots

Use the keyboard arrow keys to navigate screens.

![Memory](https://github.com/jasnell/notare/blob/master/docs/images/notare_memory.png?raw=true)

![Event Loop Delay](https://github.com/jasnell/notare/blob/master/docs/images/notare_eld.png?raw=true)

![CPU](https://github.com/jasnell/notare/blob/master/docs/images/notare_cpu.png?raw=true)

![Handles](https://github.com/jasnell/notare/blob/master/docs/images/notare_handles.png?raw=true)

## Configuration via Environment Variables

* `NOTARE_HZ=n` where `n` is the number of samples per second (default `2`)

* `NOTARE_PORT=n` where `n` is the UDP port notare should use (default `8999`)

* `NOTARE_HOST=n` where `n` is the UDP hostname (default `localhost`)

* `NOTARE_HANDLES=1` instructs notare to monitor async hook handle counts

* `NOTARE_GC=1` instructs notare to monitor garbage collection

  (disabled by default)