Offload the rendering of slow view partials with ActiveJob and ActionCable to reduce page load times.

Official gem of GitLab Support Readiness

An implementation of the HyperLogLog set cardinality estimation algorithm in Ruby using Redis as a back-end

Fast background processing framework for Ruby and RabbitMQ

Lowkiq

Open-source gems maintenance & maturity tracking

Failover for ActiveRecord and Redis

Sinatra app to monitor Redis servers

Pessimistic locking for ruby redis

Adds Redis::Queue class which can be used as Distributed-Queue based on Redis. Redis is often used as a messaging server to implement processing of background jobs or other kinds of messaging tasks. It implements Reliable-queue pattern decribed here: http://redis.io/commands/rpoplpus...

RedisRPC is the easiest to use RPC library in the world. (No small claim!) It has implementations in Ruby, PHP, and Python. Redis is a powerful in-memory data structure server that is useful for building fast distributed systems. Redis implements message queue functionality with its use of list ...

Related is a Redis-backed high performance distributed graph database.

remote-based mutexes

Ruby Socket.IO emitter implementation.

Accepts orders via http, returns payment info via http or streams updates via websockets, stores orders in a DB

This gem provides asynchronous indexing to Solr for the sunspot gem. It uses a pluggable model for the backing queue and provides support for ActiveRecord, DataMapper, and MongoDB out of the box.

Library for Redis-backed time-based rate limiting

Extremaly fast, flexible and intuitive access control mechanism, powered by fast key value stores like Redis.

AcornCache is a Ruby HTTP proxy caching library that is lightweight, configurable and can be easily integrated with any Rack-based web application. AcornCache allows you to improve page load times and lighten the load on your server by allowing you to implement an in-memory cache shared by every ...

I am altria.