New Relic instruments the Grails Framework for versions 1.3.7 to 2.3.x to provide you with insight into your Grails applications.
When you add New Relic to Grails, you see your web transactions organized by route method. You can immediately see summary data about what web transactions are called most, and where they are spending their time. Time spent in and JDBC calls and Hibernate is also shown.
By adding New Relic code to your Grails templates, you can also get Real User Monitoring data.