How to: Metric & Metric Collection
*Metric gathering and display software.*

* [Collectd](http://collectd.org/) - System statistic collection daemon.
* [Collectl](http://collectl.sourceforge.net/) - High precision system performance metrics collecting tool.
* [~~dashing~~](http://dashing.io/) - __No Longer Maintained__ - Ruby gem that allows for rapid statistical dashboard development. An all HTML5 approach allows for big screen displays in data centers or conference rooms.
* [Smashing](https://github.com/Smashing/smashing) - Ruby gem that allows for rapid statistical dashboard development. An all HTML5 approach allows for big screen displays in data centers or conference rooms. Fork of Dashing.
* [Diamond](https://github.com/BrightcoveOS/Diamond) - Python based statistic collection daemon.
* [Facette](http://facette.io) - Time series data visualization and graphing software written in Go.
* [Freeboard](https://github.com/Freeboard/freeboard) - A damn-sexy front-end real-time dashboard. Transforms raw JSON into delicious UI.
* [Ganglia](http://ganglia.sourceforge.net/) - High performance, scalable RRD based monitoring for grids and/or clusters of servers. Compatible with Graphite using a single collection process.
* [Grafana](http://grafana.org/) - A Graphite & InfluxDB Dashboard and Graph Editor.
* [Graphite](http://graphite.readthedocs.org/en/latest/) - Open source scalable graphing server.
* [InfluxDB](http://influxdb.com/) - Open source distributed time series database with no external dependencies.
* [KairosDB](https://code.google.com/p/kairosdb/) - Fast distributed scalable time series database, fork of OpenTSDB 1.x.
* [NetData](http://my-netdata.io) - Distributed real-time performance and health monitoring.
* [OpenTSDB](http://opentsdb.net/) - Store and server massive amounts of time series data without losing granularity.
* [Packetbeat](http://packetbeat.com/) - Captures network traffic and displays it in a custom Kibana dashboard for easy viewing.
* [Prometheus](http://prometheus.io/) - Service monitoring system and time series database.
* [RRDtool](http://oss.oetiker.ch/rrdtool/) - Open source industry standard, high performance data logging and graphing system for time series data.
* [Statsd](https://github.com/etsy/statsd/) - Application statistic listener.