How to: Performance Monitoring
* [Instrumental](https://github.com/expectedbehavior/instrumental_agent) - Measure your application in real time with [Instrumental](http://instrumentalapp.com).
* [New Relic](https://github.com/newrelic/rpm) - Find and fix Ruby errors with New Relic application monitoring and troubleshooting.
* [RoRvsWild](https://github.com/BaseSecrete/rorvswild) - Performances and exceptions monitoring for Rails developers.
* [Scout](https://github.com/scoutapp/scout_apm_ruby) - Scout Ruby Application Monitoring Agent.
* [Skylight](https://github.com/skylightio/skylight-ruby) - A smart profiler for your Rails apps that visualizes request performance.