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ftamminga edited this page Jul 11, 2018 · 24 revisions

Welcome to Metrics.NET

This repository has started a new life on

Use this repo for reference only!

Build status Mono Build Status

What it is

Metrics.NET library is a .NET Port, with lots of additional functionality, of the awesome Java metrics library by Coda Hale.

To paraphrase the Java library description - Metrics is a library which gives you unparalleled insight into what your code does in production. Metrics provides a powerful toolkit of ways to measure the behavior of critical components in your production environment.

What it does

It can measure things like how long requests take, how often errors occur, how many items are in a cache and how often the cache is hit. It can measure any measurable aspect of the host application.

One of the main goals of the library is to have a minimal impact on the measured application, while at the same time making it easy to capture the desired metrics. A lot of effort has been invested in making the public API as simple and intuitive as possible.

Supported runtimes: .NET 4.5.1, .NET 4.5, .NET 4.0 (on a separate branch) & Mono 3.8.0+ ( tested on OsX ).

Who is it for

Developers who need to see what is happening inside their systems at run-time.

Any application, from a long running service to a web app to a console app can benefit from measuring what is happening while it is running.

For a very good introduction on why metrics are necesary I highly recommand Coda Hale's talk about metrics and slides.

Why another port

This port is also inspired and contains some code from Daniel Crenna's port of the same library.

I have decided to write another .NET port of the same library since Daniel does not actively maintain metrics-net. I've also wanted to better understand the internals of the library and try to provide a better API, more suitable for the .NET world.

Visualization Demo

The visualization app is also avaliable on github: Metrics.NET.FlotVisualization.

A demo of the visualization app is available here. This demo uses fake, generated values for the metrics.


.NET Port of the awesome Java metrics library by Coda Hale

This port will always keep the same license as the original Java Metrics library.

The original metrics project is released under this therms ( Copyright (c) 2010-2013 Coda Hale, Published under Apache Software License 2.0, see LICENSE

The Daniel Crenna's idiomatic port is released under this therms ( The original Metrics project is Copyright (c) 2010-2011 Coda Hale, This idiomatic port of Metrics to C# and .NET is Copyright (c) 2011 Daniel Crenna Both works are published under The MIT License, see LICENSE

This port ( Metrics.NET ) is release under Apache 2.0 License ( see LICENSE ) Copyright (c) 2014 Iulian Margarintescu