diff --git a/README.md b/README.md index 5aab6d9d..07ef6117 100644 --- a/README.md +++ b/README.md @@ -16,7 +16,7 @@ Puma is a **simple, fast, multi-threaded, and highly concurrent HTTP 1.1 server 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 concurrent Ruby implementations (JRuby, Rubinius) will use all available CPU cores. -Originally designed as a server for (Rubinius)[https://github.com/rubinius/rubinius], Puma also works well with Ruby (MRI) and JRuby. +Originally designed as a server for [Rubinius](https://github.com/rubinius/rubinius), Puma also works well with Ruby (MRI) and JRuby. On MRI, there is a Global VM Lock (GVL) that ensures only one thread can run Ruby code at a time. But if you're doing a lot of blocking IO (such as HTTP calls to external APIs like Twitter), Puma still improves MRI's throughput by allowing IO waiting to be done in parallel.