h1. IronRuby

Jimmy Schementi

I work for Microsoft (picture of a storm trooper)

h2. Last year

IronRuby had just dispatched the first Rails request ever

IronRuby is maturing - it's not quite there yet, but it's maturing
It's running Rails programs like Rails and Sinatra, gems and Rake

h2. Runs in "the real world"

It runs in .NET
How do we merge with the .NET world?

h2. Growing up

(Windows 7 on a Macbook Pro)

h2. Example

require 'mscorlib'
include System

.NET namespaces and Ruby modules maps very well to each other

Classes are classes
Namespaces are modules

h3. iirb (console)


h2. IronRuby running Rails

IronRuby uses 35 seconds to start Rails

It works with SQL Server and Express:
github.com/jschemeti/activerecord-mssql-adapter

ActionPack: 94% pass rate
ActiveRecord: 29% fail rate - most failures due to a couple of small bugs
ActiveSupport: 90% pass rate

h2. ... and Sinatra

Takes about 8 seconds to start

h2. Performance

It takes 35 seconds to start Rails, 2 seconds for the first request and 0,056 sec for subsequent requests
The same numbers for MRI is 6.5, 0.5 and 0.022

h2. IronRuby is a real Ruby implementation

We think it is important to make Rails run well

h2. Deploying Rails to Windows

h3. Rack support

ironruby-rack: Rack interface between IIS and IronRuby

h3. Configuring

IronRuby ties into IIS through an HTTP handler
Currently this HTTPhandler has a global lock around the entire code, because it was written before Rails was thread-safe

h3. RubyEngine

A path into Ruby from C#
There is no spooky marshalling - it's Ruby running IIS

h3. References

You can just drop IronRuby and gems into the bin directory

h2. Magic

Library for working with WinForms, Silverlight and WPF

h2. ironruby-contrib

People doing ruby stuff for IronRuby

h2. Questions

h3. Running on Mono

Use two guys fork of IronRuby to run on Mono

h3. Why is Microsoft funding IronRuby

We are making Ruby to help MS customers staying on the platform