pg_tags is a simple and high performance tagging gem for Rails using the PostgreSQL array type. An alternative to acts_as_taggable_on. Still a work in progress and not ready for use!

This tool is used to help you find the performance problems in your Rails applications

Extends beyond traditional schema annotation to provide intelligent analysis and actionable suggestions for Rails model code quality, performance, and maintainability.

High performance multicurrency money for rails.

This gem is notified of basic performance metrics for a Rails application, and sends the measurements to Datadog.

A high performance ActiveRecord concern for Rails using the PostgreSQL array type.

A flexible, high-performance tagging system for Rails applications with support for polymorphic tags, custom transformers, and database-specific optimizations

A simple way to find records in the same order of input array. Has better performance than manually sorting. Supports Rails 3+.

MonkeySupport monkeypatches some of the performance-sink parts of rails with speedy C extensions.

Cluster markers to improve performance of leaflet rendering with large sets.

New Relic RPM is a Ruby performance management system, developed by New Relic, Inc (http://www.newrelic.com). RPM provides you with deep information about the performance of your Ruby on Rails or Merb application as it runs in production. The New Relic Agent is dual-purposed as a either a Rails ...

Run performance regression tests for your Rails app

Micro-library for gathering frontend web page performance data. Includes helpers for Rails, Middleman & other frameworks that use Sprockets.

Gem used to measure performance of a Ruby on Rails application

Collection of Capistrano recipes for deploying Rails apps into high-performance environments

Perfm aims to be a performance monitoring tool for Ruby on Rails applications.

http://www.engineyard.com/blog/2010/extending-rails-3-with-railties/ http://www.igvita.com/2010/08/04/rails-3-internals-railtie-creating-plugins/ h1. Morning Glory Morning Glory is comprised of a rake task and helper methods that manages the deployment of static assets into an Amazon CloudFron...

A library which replaces hotspots in Rails with C implementations to increase performance.

PgInsights provides a plug-and-play insights dashboard for analyzing PostgreSQL performance and query data inside any Rails application.

A comprehensive Ruby client for ActiveRabbit.ai that provides error tracking, performance monitoring, and application observability for Rails applications.