newrelic_rpm (rubygems): New Relic is a performance management system, developed by New Relic, Inc (http://www.newrelic.com).  New Relic provides you with deep information about the performance of your web application as it runs in production. The New Relic Ruby agent is dual-purposed as a either a Gem or plugin, hosted on https://github.com/newrelic/newrelic-ruby-agent/ 
Keywords: agent|apm-agent|hacktoberfest|ruby