Puma is a simple, fast, multi-threaded, and highly parallel HTTP 1.1 server for Ruby/Rack applications.
Puma processes requests using a C-optimized Ragel extension (inherited from Mongrel) that provides fast, accurate HTTP 1.1 protocol parsing in a portable way. Puma then serves the request using a thread pool. Each request is served in a separate thread, so truly parallel Ruby implementations (JRuby, Rubinius) will use all available CPU cores.
This is free and open source software.
Key Features
- Small library that provides a very fast and concurrent HTTP 1.1 server for Ruby web applications. It is designed for running Rack apps only.
- Use of a Ragel extension to provide fast, accurate HTTP 1.1 protocol parsing.
- Runs on all Ruby implementations.
- Provides a simple and high performance request/response pipeline to Rack apps, allowing it to be used by nearly all ruby web applications
Website: puma.io
Support: GitHub Code Repository
Developer: Evan Phoenix. Some code by Zed Shaw
License: BSD 3-Clause “New” or “Revised” License
Puma is written in Ruby. Learn Ruby with our recommended free books and free tutorials.
Related Software
| Ruby Application Servers | |
|---|---|
| Puma | Concurrent web server for Ruby and Rack |
| Phusion Passenger | Web server and application server for Ruby, Python and Node.js |
| Falcon | Asynchronous Rack-compatible engine for fast, scalable web traffic |
| pitchfork | Preforking HTTP engine designed for resilience and steady throughput |
| iodine | Lightweight HTTP and WebSocket service built for demanding loads |
| unicorn | HTTP server for Rack applications |
| Itsi | High-performance web serving with efficient request handling |
| Rainbows! | HTTP server for sleepy Rack applications based on Unicorn |
| Agoo | Fast HTTP platform with WebSocket support and very low overhead |
| yahns | Sleepy, multi-threaded, non-blocking application server for Ruby |
Read our verdict in the software roundup.
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