rubyconf 2007 - Rubinius 1.0

Evan Phoenix - RubyConf 2007

Last things first,first things last.

What is the endgame?

In a word..

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”)

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.

84,516 lines of C 0 lines of Ruby

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

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

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

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<evan@fallingsnow.net>

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

2 6 10

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

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Transcript of rubyconf 2007 - Rubinius 1.0

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