1. Rubinius & Ruby
A Love Story

3. Shane Becker
@veganstraightedge

4. Evan Phoenix
@evanphx

5. Brian Ford
@brixen

6. http://rubini.us
@rubinius

7. The Next 45 Minutes
of your life
Why We Care
Why You (Should)Care
Developing with Tools
Question & Answer Time

8. Why We Care

9. Why We Care
A Bit of History

10. A Bit of History
2002
Evan started using Ruby

11. A Bit of History
2006
Evan started to figure out
how to improve Ruby

12. A Bit of History
2006
Experimented with cleaning
up and improvements
in MRI 1.8.2

13. A Bit of History
2006
Realize that Ruby
needed a fresh start

14. A Bit of History
2006
Started Rubinius

15. A Bit of History
2006
Started Rubinius
on Honeymoon in Bali

16. Why We Care
The Ruby Language

17. The Ruby
Language
Rubinius is a faithful
implementation of
the Ruby Language

18. The Ruby
Language
Rubinius is a drop-in
replacement for MRI 1.8.7

19. Why We Care
Drop-in Replacement

20. Drop-in
Replacement
Full method compatibility
via RubySpec

21. Drop-in
Replacement
Major C-API compatibility

22. Drop-in
Replacement
Major C-API compatibility
with some caveats

23. Why We Care
Improve Ruby

24. Improve Ruby
Ruby should be good
enough to use as its own
underpinnings

25. Improve Ruby
MRI’s core (Array, Hash, etc)
contains no Ruby

26. Improve Ruby
Strive for scalability and
performance for
the Ruby language

27. Why We Care
Performance

28. Performance
MRI’s implementation of
Ruby is slow

29. Performance
Prevalence of C extensions
demonstrate MRI’s slowness

30. Performance
Strive to bring Ruby
itself up to speed

31. Why We Care
Fast Ruby

32. Fast Ruby
Use established techniques to
make Ruby itself fast

33. Fast Ruby
Established Techniques
Compile Ruby
to machine code

34. Fast Ruby
Established Techniques
Profit!

35. Why We Care
Faster Ruby for All

36. Faster Ruby for All
Capable of running Ruby code

37. Faster Ruby for All
Capable of running Ruby code
up to 100x faster than MRI

38. Faster Ruby for All
Helps change Ruby’s standing
in the programming world

39. Why We Care
Manage Memory Better

40. Manage
Memory Better
Very fast object allocation

41. Manage
Memory Better
All objects are
extremely lightweight

42. Manage
Memory Better
All objects are
extremely lightweight
56 bytes vs 500 bytes

43. Manage
Memory Better
Compact and release
memory to OS

44. Why We Care
Better Memory Usage

45. Better
Memory Usage
MRI’s GC is broken

46. Better
Memory Usage
MRI’s GC is broken
Conservative garbage
collection is flawed

47. Better
Memory Usage
Rubinius has a better way

48. Why We Care
Real World Memory Usage

49. Real World
Memory
Made for Ruby applications

50. Real World
Memory
Made for Ruby applications
Ruby is objects

51. Real World
Memory
Made for Ruby applications
Rubinius is made for objects

52. Real World
Memory
Made for Ruby applications
LOTS of objects

53. Why We Care
Real World Memory Usage
An Experiment

54. An Experiment
10.million.times do
create 101 objects
save 1 of them
end

55. An Experiment
https://gist.github.com/1008305

56. MBs
3000
2500
2000
MRI
1500
1000
500
0

57. An Experiment
10,000,000 times
Create 101 objects
Save one of them

58. An Experiment
1,010,000,000 objects created
10,000,000 objects saved

59. MBs
3000
2500
2000
MRI
1500
1000
500
Rubinius
0

60. Real World
Memory
Love your objects

61. Developing
with Tools

62. Better
Technology
For Running Ruby

63. Better
Technology
For Writing Ruby

64. Debugging
We All Do It

65. PDD
p-Driven Debugging

66. <screencast>
p-Driven Debugging

67. Steps
Locate
Instrument
Repeat

68. Good Tools
Go With The Flow

69. Good Tools
Save Time & Effort

70. <screencast>
Debugger Debugging

71. Steps
Locate
Run
Explore

72. Debunking
Exposing The Falseness

73. Testing
A Cherished Tool

74. Testing
Don’t Need No
Stinkin’ Debugger

75. Debugging
gem install rbx-trepanning

76. Profiling
Refining Code

77. Profiling
Good Judgment

78. <screencast>
Profiling

79. Profiling
Mind The Gap

80. Jump Into
Rubinius

81. Ruby Swap
rvm install rbx-2.0.0pre

82. Ruby Swap
rbx -S bundle install

83. Ruby Swap
rbx -S rails s

84. Deploying
On AppCloud

85. <screencast>
On AppCloud
http://ey.io/rbxdeploy

86. Deploying
On AppCloud
http://ey.io/rbxdeploy

87. Why You
(should) Care

88. Why You Care
You love Ruby

89. Why You Care
You love Ruby
We love Ruby too!

90. Why You Care
You want Ruby used
in more places
for more things

91. Why You Care
You want Ruby used more
We do too!

92. Use Ruby™

93. Rubinius & Ruby
A Love Story

94. Shane Becker
@veganstraightedge

95. Evan Phoenix
@evanphx

96. Brian Ford
@brixen

97. http://rubini.us
@rubinius

98. http://engineyard.com
@engineyard

99. Questions &
Answers
Time

100. NEXT TIME on
Engine Yard webinars…
JRuby Jam
Session
featuring
Nick Seiger
Thursday, September 15, 2011
11:00-11:50am PDT
Register: engineyard.com/developer/events