System Metrics is a Rails 3 Engine that provides a clean web interface to the performance metrics instrumented with ActiveSupport::Notifications

The easiest way to get random records from database with best performance that you ever seen.

Wor-prof (Wprof) is a gem for Ruby On Rails which its only purpose is to measure a RoR app's performance through a profile with different times of response. Catch all request and save them into a database, csv file or send to external service, it's easy to configure and use. Wprof can take meas...

Cardinal is a modular, “mobile-first” CSS framework built with performance and scalability in mind.

Call malloc_trim(0) on GC Impact: - 99th percentile performance is slightly impacted. - CPU is very slightly higher Inspired by Philipp Tessenow's malloc_trim gem

This gem gives your rails app the ability to create large data reports, without influencing the performance of the app server.

Pop this gem in your rails >= 3 application. This gem will utilize statsd and easily track basic performance stats for your application.

A collection of helpers and contexts to enhance Rails specs: logging, env/I18n/time helpers, SQL guards, request/DB dumps, benchmarking, CI guards, and performance limits.

Ruby2HTML empowers developers to write view logic in pure Ruby, seamlessly converting it into clean, well-formatted HTML. Enhance your templating workflow, improve readability, and leverage the full power of Ruby in your views. Features include Rails integration, custom component support, automat...

See in Rails console how many records your query returns. It can help with solving performance issues.

CacheInspector hooks into Rails cache events to log hits, misses, and large writes for debugging and performance tuning.

Counter caches for Rails applications, including cached running counts. Using redis and native PostgreSQL features for performance gains

Magnific Popup is a responsive jQuery lightbox plugin that is focused on performance and providing best experience for user with any device (Zepto.js compatible).

Magnific Popup is a free responsive jQuery lightbox plugin that is focused on performance and providing best experience for user with any device

Rails Cdn Optimizer analyzes your Rails app's asset pipeline, detects large files, suggests CDN caching rules, and helps improve performance automatically.

Call Python libraries directly from Ruby and Rails. No microservices, no REST APIs — just seamless interop. Powered by Rust for safety and performance.

This gem reduces storage needed for Rails cache by using Brotli compression, which can produce outputs smaller by ~20% and offers better performance than Gzip.

Include "Lightning-Fast Modular CSS with No Side Effects" Basscss in Rails. Basscss is a lightweight collection of base element styles and immutable utilities designed for speed, clarity, performance, and scalability.

CAUTION: Use this gem at your own risk. If you use gems that depends on the thread_safe gem, e.g. Rails, but your application is not doing any threading, then thread_hazardous can bring you a few performance improvements at the cost of making these dependencies non thread safe.

A Rails plugs-in which can paginate data by time period. It will help you to improve your application performance especially when your data is orgnized by time partition.