Rubinius
The 4th Year
Tuesday, November 24, 2009

Rubinius
The 1st Senior Year
Tuesday, November 24, 2009

4th Year
Tuesday, November 24, 2009

Year 1
Freshman Year
48 commits
Tuesday, November 24, 2009

http://photos.dzki.co.uk/oak_sapling_warming_itself_in_the_morning_sun.jpg
Tuesday, November 24, 2009

Year 1
A Toy
Tuesday, November 24, 2009

Year 1
An Idea
Tuesday, November 24, 2009

Year 2
Sophomore Year
2802 commits
Tuesday, November 24, 2009

Year 3
Hubris
Tuesday, November 24, 2009

Year 3
Hubris
1.0 anyone?
Tuesday, November 24, 2009

Year 3
Junior Year
6172 commits
Tuesday, November 24, 2009

Year 3
Compliance
Tuesday, November 24, 2009

Year 3
Compliance
RubySpec
Tuesday, November 24, 2009

Year 3
Redirection
Tuesday, November 24, 2009

Year 3
Redirection
C++
Tuesday, November 24, 2009

Year 3
Plotting
Tuesday, November 24, 2009

Year 4
1st Senior Year
2220 commits
Tuesday, November 24, 2009

Year 4
JIT
Tuesday, November 24, 2009

Year 4
JIT
LLVM
Tuesday, November 24, 2009

Year 4
JIT
Hotspot Detection
Tuesday, November 24, 2009

Year 4
JIT
Type Profiling
Tuesday, November 24, 2009

Year 4
JIT
Method Inlining
Tuesday, November 24, 2009

Year 4
FTW
Block Inlining!
Tuesday, November 24, 2009

Year 4
RubySpec
Tuesday, November 24, 2009

Year 4
RubySpec
93% Pass Rate
Tuesday, November 24, 2009

Year 4
RubySpec
rake, rspec, rails
Tuesday, November 24, 2009

Year 4
C Extensions
Tuesday, November 24, 2009

Year 4
C Extensions
syck, nokogiri, mysql, yajl-json
Tuesday, November 24, 2009

Compliance
+
Performance
Tuesday, November 24, 2009

Compliance
93+% RubySpec
Tuesday, November 24, 2009

Compliance
93+% RubySpec
Passing/untagging more everyday
Tuesday, November 24, 2009

NotImplementedError
Tuesday, November 24, 2009

NotImplementedError
ObjectSpace
Tuesday, November 24, 2009

NotImplementedError
ObjectSpace
_id2ref
Tuesday, November 24, 2009

NotImplementedError
ObjectSpace
each_object (limited)
Tuesday, November 24, 2009

NotImplementedError
callcc
Tuesday, November 24, 2009

NotImplementedError
callcc
Yet.
Tuesday, November 24, 2009

Compliance
C-API
Tuesday, November 24, 2009

Compliance
C-API
syck, nokogiri, etc.
Tuesday, November 24, 2009

Compliance
C-API
A few gotchas...
Tuesday, November 24, 2009

C Extension
Do’s and Don’ts
Tuesday, November 24, 2009

Do
prefer a function over an
R*() macro
Tuesday, November 24, 2009

Rubinius
RBASIC(obj)->class
rb_obj_class(obj)
Tuesday, November 24, 2009

1.9 / Rubinius
ROBJECT(obj)->iv_tbl
rb_ivar_[get|set](obj, ...)
Tuesday, November 24, 2009

1.9 / Rubinius
Don’t
use the “re.h” header
Tuesday, November 24, 2009

1.9 / Rubinius
Don’t
use the “env.h” header
ruby_frame ruby_dyna_vars
ruby_scope ruby_in_eval
ruby_class
Tuesday, November 24, 2009

Try your gem
Tuesday, November 24, 2009

Report your
problems!
Tuesday, November 24, 2009

http://github.com/
evanphx/rubinius/
issues
Tuesday, November 24, 2009

Performance
Tuesday, November 24, 2009

Performance
The Two Fronts
Tuesday, November 24, 2009

Performance
Why We Fight
What We Write
Tuesday, November 24, 2009

(0..10).to_a.each do |i|
ary << i
end
Tuesday, November 24, 2009

0.upto(10) do |i|
ary << i
end
Tuesday, November 24, 2009

Performance
The Two Fronts
How We Run It
Tuesday, November 24, 2009

Performance
Benchmarking
Tuesday, November 24, 2009

Performance
Benchmarking
Expectations vs. Reality
Tuesday, November 24, 2009

Performance
Benchmarking
Lies, Damned Lies, and Statistics
Tuesday, November 24, 2009

Benchmarks
Tuesday, November 24, 2009

114
Times faster than 1.8
100
86
71
57
43
29
14
0
ruby 1.9 jruby macruby rubinius
Tuesday, November 24, 2009

57
Times faster than 1.8
50
43
36
29
21
14
7
0
ruby 1.9 jruby macruby rubinius
Tuesday, November 24, 2009

impl 1.8 1.9 jruby macruby rbx
ms 309304 51113 113824 70580 24232
x faster 1.0 6.0 2.7 4.3 12.7
Tuesday, November 24, 2009

Benchmarks
12x faster!
Tuesday, November 24, 2009

Benchmarks
12x faster!
On these benchmarks!
Tuesday, November 24, 2009

Benchmarks
12x faster!
In general?
Tuesday, November 24, 2009

Benchmarks
What did we benchmark?
Tuesday, November 24, 2009

Calling a method.
Empty while loop.
Creating a block.
Accessing ivars.
Performing ‘not’.
Calling a polymorphic method.
Calling super.
Tuesday, November 24, 2009

Benchmarks
Why these things?
Tuesday, November 24, 2009

Benchmarks
Why these things?
How do these results translate?
Tuesday, November 24, 2009

Analogy
Tuesday, November 24, 2009

Dishonest?
Tuesday, November 24, 2009

Rubinius
Ruby performance
begets
core performance
Tuesday, November 24, 2009

1.8
Ruby performance
begets
?
Tuesday, November 24, 2009

Benchmarks
Need more/better data
Tuesday, November 24, 2009

def foo()
ary = []
100.times { |i| ary << i }
end
300,000
times
Tuesday, November 24, 2009

Seconds
8
7.82
6
4 4.24
3.91
3.26
2.60
2
0
1.8 1.9 macruby jruby rbx
Tuesday, November 24, 2009

def foo()
hsh = {}
100.times { |i| hsh[i] = 0 }
end
100,000
times
Tuesday, November 24, 2009

Seconds
11
10.5
8.25
7.62
5.5
4.77 4.7
2.75
1.67
0
1.8 1.9 macruby jruby rbx
Tuesday, November 24, 2009

def foo()
hsh = { 47 => true }
100.times { |i| hsh[i] }
end
100,000
times
Tuesday, November 24, 2009

Seconds
4
3.64
3
2.61 2.6
2 2.12
1.75
1
0
1.8 1.9 macruby jruby rbx
Tuesday, November 24, 2009

Benchmarking
Conclusion
Tuesday, November 24, 2009

Benchmarking
Conclusion
Rubinius is awesome at ruby code
Tuesday, November 24, 2009

Benchmarking
Conclusion
Comparing C/Java to Ruby
Tuesday, November 24, 2009

More Ruby
Tuesday, November 24, 2009

More Ruby
Burden of our own devising
Tuesday, November 24, 2009

More Ruby
Fast compliance
Tuesday, November 24, 2009

More Ruby
Slower core performance
Tuesday, November 24, 2009

More Ruby
Slower core performance
Ruby vs. C/Java
Tuesday, November 24, 2009

More Ruby
The upside...
Tuesday, November 24, 2009

114
Times faster than 1.8
100
86
71
57
43
29
14
0
ruby 1.9 jruby macruby rubinius
Tuesday, November 24, 2009

114
Times faster than 1.8
100
86
71
57
43
29
14
0
ruby 1.9 jruby macruby rubinius
Tuesday, November 24, 2009

def m; nil; end
def Bench.run
i=0
while i < 15_000_000
i+=1
m; m; m; m; m; m; m; m
end
end
Tuesday, November 24, 2009

impl 1.8 1.9 jruby macruby rbx
ms 21361 6316 10101 3295 186
x faster 1.0 3.4 2.1 6.5 114.8
Tuesday, November 24, 2009

impl 1.8 1.9 jruby macruby rbx
ms 21361 6316 10101 3295 186
x faster 1.0 3.4 2.1 6.5 114.8
Tuesday, November 24, 2009

impl 1.8 1.9 jruby macruby rbx
ms 21361 6316 10101 3295 186
x faster 1.0 3.4 2.1 6.5
114.8
Tuesday, November 24, 2009

impl 1.8 1.9 jruby macruby rbx
ms 21361 6316 10101 3295 186
x faster 1.0 3.4 2.1
114.8
6.5
Tuesday, November 24, 2009

impl 1.8 1.9 jruby macruby rbx
ms 21361 6316 10101 3295 186
x faster 1.0 3.4
114.8
2.1 6.5
Tuesday, November 24, 2009

impl 1.8 1.9 jruby macruby rbx
114.8
ms 21361 6316 10101 3295 186
x faster 1.0 3.4 2.1 6.5
Tuesday, November 24, 2009

Bug
Tuesday, November 24, 2009

Bug
right?
Tuesday, November 24, 2009

Bug
Tuesday, November 24, 2009

def m; nil; end
def Bench.run
i=0
while i < 15_000_000
i+=1
m; m; m; m; m; m; m; m
end
end
Tuesday, November 24, 2009

Year 4
JIT
Method Inlining
Tuesday, November 24, 2009

def m; nil; end
def Bench.run
i=0
while i < 15_000_000
i+=1
m; m; m; m; m; m; m; m
end
end
Tuesday, November 24, 2009

bin/rbx
-Xjit.inline.debug
0/bm_vm2_method.rb
Tuesday, November 24, 2009

JIT: compiling Object#run
inlining: primitive fixnum_lt into run.
inlining: Object#m into run (<metaclass>)
inlining: Object#m into run (<metaclass>)
inlining: Object#m into run (<metaclass>)
inlining: Object#m into run (<metaclass>)
inlining: Object#m into run (<metaclass>)
inlining: Object#m into run (<metaclass>)
inlining: Object#m into run (<metaclass>)
inlining: Object#m into run (<metaclass>)
Tuesday, November 24, 2009

def m; nil; end
def Bench.run
i=0
while i < 15_000_000
i+=1
nil;nil;nil;nil;nil;nil;nil;nil
end
end
Tuesday, November 24, 2009

def m; nil; end
def Bench.run
i=0
while i < 15_000_000
i+=1
end
end
Tuesday, November 24, 2009

Performance
Tuesday, November 24, 2009

Performance
Many programs, much faster
Tuesday, November 24, 2009

Performance
Many programs, a little slower
Tuesday, November 24, 2009

Performance
Some programs, a lot slower
Tuesday, November 24, 2009

Releases
Tuesday, November 24, 2009

Releases
0.13
Tuesday, November 24, 2009

Releases
0.13
JIT by default
Tuesday, November 24, 2009

Releases
0.13
Lots of fixes
Tuesday, November 24, 2009

1.0rc1
Tuesday, November 24, 2009

Next Week!
Tuesday, November 24, 2009

Expectations
Tuesday, November 24, 2009

Expectations
Runs rails 3
Tuesday, November 24, 2009

Expectations
Performance improvements
Tuesday, November 24, 2009

Expectations
One RC every month
Tuesday, November 24, 2009

Expectations
One RC every month
Until 1.0 is out.
Tuesday, November 24, 2009