The 1st day of RubyKaigi 2009

Today is the 1st day of RubyKaigi 2009(only afternoon).
It held at here.



I attended these sessions:

• Opening
• Using Git and GitHub to Develop One Million Times Faster
  
  • speaker: Scott Chacon
  • Git is snapshot base product
  • Used in Linux Kernel development
  • Introducing typical git commands and options
  • Central repository is not necessary for git
  • Network is not necessary for git
  • Introducing GitHub
  • Introducing Grit
  • Introducing Jekyll
• Numeric in Ruby
  
  • speaker: Kentaro Goto
  • Numeric on Ruby 1.9 is 3 times faster than Ruby 1.8's
  • Rational and Complex become standard library from Ruby 1.9
  • Each users have different backgrounds
    
    • Matz' one is "little convinient libm wrapper than C"
    • Mathematician's one is "FORTRAN" or "many amount of calculations"
    • Programming Language geek's one is "How woks on the other programming language?"
    • Computer algebra system user's one is "Is there same function with (e.g. Mathmatica)?"
  • Some problems remain on Ruby 1.9: Float, mathn, and so on.
• The standard random number generator of Ruby and the proposal to improve it
  
  • speaker: Kenta Murata
  • Kernel#rand is not enough
  • Pattern of random generation is only one
  • Kernel#rand is not well-random for multi thread
  • Kernel#srand is allowed to execute many times
  • So I start to improve random generator as an object Random
  • Unfortunately, I'm not ready to prepare codes until this conference
  • I will prepare on GitHub as soon as possible
• From Rails to Rack: Making Rails 3 a Better Ruby Citizen
  
  • speaker: Yehuda Katz
  • It's difficult to use RoR "a little", so I created Merb
  • But last December, We notice that the goal of RoR team and of Merb team is same
  • So we integrate
  • The goal is de-coupling, so you can use Rack, erubis, DataMapper, jQuery, JSON, CouchRest and so on as you like
  • Introducing Many code examples and its introductions of Rails3
  • But we also aim backward compatibility
    
    • To work AWDwR Depot store
    • If you include Rails2Compatibility module, you can get backward compatibility

  Q from me	What changes and how changes plugin system on Rails3?
  A from speaker	Nothing is decided, the decided matters are "Changing a lot" and "We fix it as last API change"

• Lightning Talks
  
  • RoR on GAE
  • RoR on IronRuby
  • and many other LTs

N.B. These summaries may be imprecise.

I have been satisfied to hear the future of Rails3, there are a lot of changes and fixes.

In this venue, temporary bookstore comes and sells technical books related with ruby, including pre-release titles.