The complete data dump for The Ruby Web Benchmark Report
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Ruby Benchmarks.ods

The Ruby Web Benchmark Report

A whole bunch of benchmarks designed to give an idea of the basic overhead of various ruby web frameworks running on various ruby web servers.

You can find the whole Ruby Web Benchmark Report here.

Rack Frameworks

  • Brooklyn
  • Camping
  • Cuba
  • Grape
  • Nancy
  • NYNY
  • Pakyow
  • Rack
  • Rails
  • Rambutan
  • Ramaze
  • Sinatra

EventMachine Frameworks

  • Cramp

Other Frameworks

  • Reel

Not Working

  • Scorched
  • Hobbit
  • Goliath

Ruby Versions

  • Ruby 1.9.3
  • Ruby 2.0.0
  • Ruby 2.1.0
  • JRuby 1.7.9
  • Rubinus 2.2.2

Ruby Servers


  • WEBrick (rack)

  • Thin (thin)

  • Puma (puma)

  • Unicorn (unicorn)

  • Passenger (passenger)

  • Reel (reel)

  • Rainbows!


  • Reel
  • Trinidad
  • Torquebox 3
  • Torqbox (Torquebox 4)
  • Jubilee
  • Mizuno
  • Fishwife
  • Puma



  • WEBrick is a slow performer and it is difficult to becnhmark with Apache Bench.
  • Sometimes wrk doesn't seem jive well with certain frameworks
  • Unicorn performance doesn't seem very predictable
  • Cramp doesn't like anything outside of thin it seems
  • Even tweaking passenger settings, it lags behind the other servers in performance
  • Unicorn and wrk doesn't seem to benchmark well
  • couldnt get rainbows to work
  • reel didn't work super well on rubinus, wrk caused it to crash
  • ab doesn't like webrick on rubinus
  • you can see the JIT happening over time if you keep running benchmarks
  • pakyow is truly unpredictable as to where it will work/benchmark and why
  • it takes quite a few benchmark runs on rubinus for it to top out
  • JRuby JIT keeps making things faster over time - Rails 300 to 2800 req/sec on torquebox 3
  • Torquebox 3's deploy is a bit annoying compared to torqbox(Torquebox 4) for specifying a rakefile
  • JRuby config settings make some difference, but not night and day difference
  • Running servers like thin under rack command makes them slower, not sure why
  • JRuby JIT pauses make benchmarking weird
  • Passenger JRuby perf isn't terribly predictable
  • Jruby/Passenger/Grape benchmarked very poorly and I'm not exactly sure why
  • "lightweight" or "micro" is a relative term
  • Jubilee is a bit buggy and thus hard to benchmark
  • Jubilee is fast when it works