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Unicorn Configurator HttpServer OobGC PrereadInput StreamInput TeeInput Util Worker

Tuning unicorn

unicorn performance is generally as good as a (mostly) Ruby web server can provide. Most often the performance bottleneck is in the web application running on Unicorn rather than Unicorn itself.

unicorn Configuration

See Unicorn::Configurator for details on the config file format. worker_processes is the most-commonly needed tuning parameter.

Unicorn::Configurator#worker_processes

Unicorn::Configurator#listen Options

Other unicorn settings

Kernel Parameters (Linux sysctl)

WARNING: Do not change system parameters unless you know what you're doing!


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