The Throwdown will begin shortly and feature presentations from Aaron Patterson on the history of MRI Ruby and Nick Sieger and Brian Ford on the histories of JRuby and Rubinius respectively. The agenda will cover introductions and histories, ecosystems, tooling, concurrency, Windows support, deployment strategies and a Q&A session. Key differences discussed include MRI's C extension support, JRuby's access to Java libraries, and Rubinius' custom VM and JIT compiler.

1. The Throwdown will begin shortly
#RubyThrowdown

2. “JRuby and Rubinius
are the best production
Ruby runtimes”
- Dr Nic
“Ignore everything
Dr Nic tells you.
Use MRI instead”
- Aaron
#RubyThrowdown

3. Todayʼs Line-up
#RubyThrowdown

4. Agenda
Introduction & History
Ecosystem
Tooling
Concurrency
Windows
Deployment
Summary of the Good Bits
Q&A
#RubyThrowdown

5. Aaron Patterson
(@tenderlove)
HISTORY OF MRI
Aaronʼs appearance is made possible by
#RubyThrowdown

6. MRI History
MRI = Matzʼ Ruby Implementation
Written in C
Reference Implementation
#RubyThrowdown

7. Nick Sieger
(@nicksieger)
HISTORY OF JRUBY
Nickʼs appearance is made possible by
#RubyThrowdown

8. JRuby History
Written in Java, Runs on JVM
2001: Pet project
2007: 1.0
2009: Engine Yard
2011: 1.6: 1.8 + 1.9 all-in-1
#RubyThrowdown

9. Brian Ford
(@brixen)
HISTORY OF RUBINIUS
Brianʼs appearance is made possible by
#RubyThrowdown

10. Rubinius History
Evan Phoenix
RubyConf 2006
Engine Yard 2007
100s of Contributors
#RubyThrowdown

11. Rubinius History
Custom VM
Generational GC
Just-in-time (JIT) Compiler
Ruby Core Library
#RubyThrowdown

12. Agenda
Introduction & History
Ecosystem
Tooling
Concurrency
Windows
Deployment
Summary of the Good Bits
Q&A
#RubyThrowdown

13. MRI Library Ecosystem
Any Gem (rubygems.org)
C (and C++) libraries are accessible
libffi, libyaml, openssl
Popular Gems provide: libxml2,
libem
#RubyThrowdown

14. JRuby Ecosystem
Ruby <=–bridge–=> Java
Use as Ruby impl. or Java library
C extension layer*
Access Java seamlessly
JRuby-specific gems
#RubyThrowdown

15. Rubinius Ecosystem
Identical Use as MRI
C-extension & Gems
Language Platform
http://rubini.us/projects
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16. Agenda
Introduction & History
Ecosystem
Tooling
Concurrency
Windows
Deployment
Summary of the Good Bits
Q&A
#RubyThrowdown

17. Stability JVM Monitoring/
Tools
Native Threads Performance
#RubyThrowdown

18. #RubyThrowdown

19. Rubinius Tooling
Profiler
Debugger
Memory Analysis
Rubinius::Agent
#RubyThrowdown

20. MRI Tooling
perftools.rb (Google Perf Tools)
gdb
DTrace (only on OS X Ruby)
GC::Profiler (built in)
ObjectSpace.count_objects
#RubyThrowdown

21. Perftools.rb
#RubyThrowdown

22. GC::Profiler.result
Invoke User Size Total Size Total GC Time
Index
Time(sec) (byte) (byte) Object (ms)
1 0.016 301640 572600 14315 1.035
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23. ObjectSpace
{:TOTAL=>14308, :FREE=>222, :T_OBJECT=>8,
:T_CLASS=>474, :T_MODULE=>21,
:T_FLOAT=>7, :T_STRING=>6248,
:T_REGEXP=>24, :T_ARRAY=>1063,
:T_HASH=>14, :T_BIGNUM=>3, :T_FILE=>10,
:T_DATA=>393, :T_MATCH=>104,
:T_COMPLEX=>1, :T_NODE=>5697,
:T_ICLASS=>19}
#RubyThrowdown

24. Agenda
Introduction & History
Ecosystem
Tooling
Concurrency
Windows
Deployment
Summary of the Good Bits
Q&A
#RubyThrowdown

25. MRI & Concurrency
Threads (native in 1.9)
Fibers (coroutines)
Evented IO (EventMachine)
#RubyThrowdown

26. Rubinius & Concurrency
Native Threads
Fully concurrent in 2.0
Native Fibers
EventMachine
Actors
#RubyThrowdown

27. JRuby & Concurrency
1st impl w/ Native Threads
Fibers backed by threads
Threading libraries
Java concurrency libraries
#RubyThrowdown

28.
data
=
[]
M.times
do
|m|
Thread.new
do
N.times
do
|n|
data
<<
m
*
n
end
end
end
#RubyThrowdown

29. Agenda
Introduction & History
Ecosystem
Tooling
Concurrency
Windows
Deployment
Summary of the Good Bits
Q&A
#RubyThrowdown

30. Rubinius & Windows™
Rubinius 2.0
1.8.7 / 1.9.2
Full concurrency
C-extension support
Native Installer
#RubyThrowdown

31. MRI & Windows™
Ruby Installer (http://rubyinstaller.org/)
Rails Installer (http://railsinstaller.org/)
Some C based gems may not work
#RubyThrowdown

32. JRuby & Windows™
Just works
Installer: with/without JVM, 32- or 64-bit
Only Ruby w/ 64-bit Win32OLE
#RubyThrowdown

33. Agenda
Introduction & History
Ecosystem
Tooling
Concurrency
Windows
Deployment
Summary of the Good Bits
Q&A
#RubyThrowdown

34. MRI Deployment
For Ruby: apt, rpm, dpkg
For Rails: Capistrano, Vlad
Web Servers: Unicorn, etc
#RubyThrowdown

35. Rubinius Deployment
Identical to MRI
but full concurrency
Passenger
Unicorn or Rainbows!
WEBrick
#RubyThrowdown

36. JRuby Deployment
Ruby servers WAR files Cloud
WEBrick GlassFish EY AppCloud
Trinidad Tomcat AppEngine
TorqueBox JBoss AWS EB
#RubyThrowdown

37. Pick a Server
blog: http://ey.io/webservers
Trinidad Mizuno
Kirk TorqueBox
#RubyThrowdown

38. Distribute your app
https://github.com/nicksieger/warbler
INSTALL gem install warbler
#RubyThrowdown

39. $ cd recordstore
$ warble executable war
rm -f recordstore.war
Creating recordstore.war
$ java -jar recordstore.war
<server starts on port 8080>
#RubyThrowdown

40. Q&A
#RubyThrowdown

41. Top Reasons to use MRI
It is canonical
Large ecosystem / C support
Fast
Fun!
#RubyThrowdown

42. Top Reasons: Rubinius
Use Today Like MRI
First-class Ruby
Modern Technology
Ruby Tools in Ruby
#RubyThrowdown

43. Top Reasons: JRuby
Best of Java and Ruby
Mature Platform
Performance, Stability,
Concurrency
#RubyThrowdown

44. Rails | Sinatra | Rack
Memcached | MRI | JRuby | Rubinius
Redis
Chef
Mongrel | Unicorn | Passenger
Recipes
MySQL nginx
HAProxy
Linux
#RubyThrowdown

45. #RubyThrowdown

46. http://ey.io/jrubyftw
#RubyThrowdown

47. #rbxday
Friday, August 5, 2011
A global day of Rubinius performance testing, bug reporting,
community strengthening and super awesome fun times
Let’s make it a party!
http://rbxday.rubini.us

48. Want More?
Upcoming Webinars
August 18 - Rubinius
August 25 - JRuby
#RubyThrowdown