rubyconf 2007 - Rubinius 1.0

Evan Phoenix - RubyConf 2007


Last things first,first things last.

What is the endgame?

In a word..


Total


Total world


Total world domination


For Ruby!


375 days ago...In a galaxy far far away...

(aka Denver)


The end of Sydney

The beginning of Rubinius


Enormous progress


class Rubinius < Smalltalk# forminclude Ruby::Syntax# functioninclude Ruby::Behavior# elbow greaseinclude Google.search(“crazy cs papers”)

end


CS Nerd Attack Mode!(blitznerdo)


GenerationalGarbage Collection!

(with heap compaction)


Bytecode execution!


Stackless!(uses no C stack)


Self-hostedkernel and compiler!


Pre-compiled files! (.rbc)


Builtin packaging!(.rba == .jar)


Oh my!


AudienceParticipation


Runtime and Kernel


kernel |ˈkərnl|nouna softer, usually edible part of a nut, seed, or fruit stone contained within its hard shell.• the seed and hard husk of a cereal, esp. wheat.• [in sing. ] the central or most important part of something : this is the kernel of the argument.• the most basic level or core of an operating system of a computer, responsible for resource allocation, file management, and security.• [as adj. ] Linguistics denoting a basic unmarked linguistic string.


1.8


84,516 lines of C 0 lines of Ruby


1.9


128,786 lines of C0 lines of Ruby


IronRuby(pre-alpha1)


48,282 lines of .cs 0 lines of Ruby


JRuby 1.0.2


114,507 lines of .java 0 lines of Ruby


Rubinius


25,398 lines of C13,946 lines of Ruby


0

25,000

50,000

75,000

100,000

125,000

150,000

1.8 1.9 ironruby jruby rubinius

NOT Ruby Ruby


Junior HighAnalysis


1.8 and 1.9

Ruby for C programmers


JRuby

Ruby for Java programmers


IronRuby

Ruby for C# programmers


Rubinius

Ruby for Ruby programmers


Eating your own dog food ==

Feedback loop


Optimized Rubinius kernel / VM

==Optimization for all

Ruby code


You’re a Ruby developer,I’m a Ruby developer


Of the rubists,by the rubists,for the rubists


Road, rubber, all that jazz.


Faster in 24 of 31 tests (yarv micro benchmarks against 1.8)


Moving quickly


so why isn’t it done?


Architecture/design is quite important


but hard to create in a vacuum


Mistakes were made.


“Practice makes perfect”-- Ryan Davis (RubyConf 2007)


“A person who never made a mistake never tried anything new”

-- Albert Einstein

“You will do foolish things,but do this with enthusiasm”

-- Collete


-Ofun


Rarely a burden,always a treat.


Community


57 committers

17 with 20 or more commits

36 with 100+ lines changed


Weekend patchers&

Code junkies alike


Free flowing commit bit


Pat Eyler

Marcus Crafter

David WaiteShane Becker


Eric Hodel

Kevin ClarkBrian Ford

Adam Gardiner


Ryan Davis

Wilson Bilkovich

Yehuda Katz


Abigail PhoenixJohn Hornbeck

Eero Saynatkari

(official wife)

Fog(official mascot)


Thanks EY!


Evan Phoenix<[email protected]>

mailto:[email protected]

mailto:[email protected]


An exception has occurred: User requested termination with Control-C (Interrupt)

Backtrace: Readline.readline at kernel/core/readline.rb:52 main.__script__ at lib/bin/sirb.rb:78 main.load at kernel/core/compile.rb:78 main.require at kernel/core/compile.rb:129 Array#each at kernel/core/array.rb:526 Integer(Fixnum)#times at kernel/core/integer.rb:19 Array#each at kernel/core/array.rb:526 main.require at kernel/core/compile.rb:112 Array#each at kernel/core/array.rb:526 Integer(Fixnum)#times at kernel/core/integer.rb:19 Array#each at kernel/core/array.rb:526 main.require at kernel/core/compile.rb:111 main.__script__ at kernel/loader.rb:159

Backtraces!


C extensions can misbehave


Segfault detected in function 0x90a00 (accessing 0x4) (MemorySegmentionError)

SomeExtension#test_segfault at extensions/test/test.c main.__script__ at extensions/test/test.rb:38 main.load at kernel/core/compile.rb:95 main.__script__ at kernel/loader.rb:122

VALUE test_segfault(VALUE self) { // Get a pointer to address 4. char *i = (char*)4; // Attempt to read from address 4 // which is definitely not allowed. x = *i; // Never get this far. return Qnil;}

Raises an exception!


Time lost to segfaults

50

100

150

200

1 3 5

2 6 10

30

70

200

1.8 rubinius


Memory usage


•1.8 garbage collector is simple, but too simple.

•Rubinius uses modern techniques to decrease memory usage and increase throughput


Fork you!


•Start up a program.

•Require all your code.

•fork() the process.

•Watch your memory double.

In 1.8...


• Start up a program.

• Require all your code.

• fork() the process.

• Watch (virtually) NO change in the memory footprint!

In Rubinius...


1 2 3 4

1.8 rubinius

Memory change peradditional instance


Thank You!

rubyconf 2007 - Rubinius 1.0

Technology

Transcript of rubyconf 2007 - Rubinius 1.0