JRuby on Rails

JRuby on Rails fabio.kung@caelum.com.br Monday, March 2, 2009

http://www.robert-tolksdorf.de/vmlanguages.html Monday, March 2, 2009

DSLs Monday, March 2, 2009

DSLs Externa Interna (host) Monday, March 2, 2009

HAPPY INTERNATIONAL INVOKEDYNAMIC DAY JSR-292 http://openjdk.java.net/projects/mlvm/ Monday, March 2, 2009

Monday, March 2, 2009

Mas e por que Java? “por que?” Monday, March 2, 2009

Memória Heap objeto objeto objeto objeto objeto objeto objeto Monday, March 2, 2009

95% dos objetos tem vida curta Monday, March 2, 2009

Mortalidade Infantil Memória Heap Eden Tenured Monday, March 2, 2009

Mortalidade Infantil Memória Heap Eden Tenured objeto objeto objeto objeto Monday, March 2, 2009

Flexibilidade • Serial • ParNew • Parallel Scavenge • Serial Old • CMS • Parallel Old • G1 http://blogs.sun.com/jonthecollector/entry/our_collectors Monday, March 2, 2009

Ea performance? Monday, March 2, 2009

http://headius.blogspot.com/2008/02/jruby-rc2-released-whats-next.html JRuby's performance regularly exceeds Ruby 1.8.6, and in many cases has started to exceed Ruby 1.9 http://www.ﬂickr.com/photos/diathesis/2115578333/ Monday, March 2, 2009

JIT Compiler Monday, March 2, 2009

Startup • -X:bootclasspath • Nailgun: http://www.martiansoftware.com/nailgun/ Monday, March 2, 2009

Startup • -X:bootclasspath • Nailgun: http://www.martiansoftware.com/nailgun/ Nailgun tcp/ip Client Nailgun tcp/ip JVM Server Client Nailgun tcp/ip Client Monday, March 2, 2009

Rails não escala! Monday, March 2, 2009

http://www.akitaonrails.com/2008/4/19/di-rio-de-bordo-do-ﬁsl-9 Sim! Rails escala! http://picasaweb.google.com/leo.torres84/FISL2008 Monday, March 2, 2009

Ruby on Rails http WebServer Rails CGI “como?” Monday, March 2, 2009

Ruby on Rails Rails CGI http WebServer Rails CGI CGI Rails “como?” Monday, March 2, 2009

Ruby on Rails Proxy Reverso Mongrel http / http Rails Load Balancer Monday, March 2, 2009

Ruby on Rails Mongrel http Rails Proxy Reverso Mongrel http / http Rails Load Balancer Mongrel http Rails Monday, March 2, 2009

JRuby on Rails container http Servlet Monday, March 2, 2009

JRuby on Rails container Thread Thread Thread http Servlet Thread Thread Monday, March 2, 2009

JRuby on Rails container Thread Thread Rails Thread http Servlet (JRuby) Thread Thread Monday, March 2, 2009

JRuby on Rails container Rails Thread (JRuby) Thread Rails Thread http Servlet (JRuby) Thread Rails Thread (JRuby) Monday, March 2, 2009

JRuby on Rails container Rails Thread (JRuby) Thread Goldspike Rails Thread http Servlet (JRuby) http://wiki.jruby.org/wiki/Goldspike Thread Rails Thread (JRuby) Monday, March 2, 2009

JRuby Rack Rails Thread rack (JRuby) Thread Filter Rails Thread http Servlet rack JRuby (JRuby) Rack Thread Rails Thread rack (JRuby) Monday, March 2, 2009

JRuby Rack Rails Thread rack (JRuby) Thread Merb? Filter Rails Thread http Servlet rack JRuby (JRuby) Rack http://merbivore.com/ Thread Rails Thread rack (JRuby) Monday, March 2, 2009

I agree, the memory situation is not the best but compared to MRI, JRuby deployments are actually favorable. We're seeing around 20MB per runtime in our deployment, ... http://www.ﬂickr.com/photos/nicksieger Monday, March 2, 2009

Rails 2.2 is thread-safe! http://joshpeek.com/ Monday, March 2, 2009

-server -Xmx1024m httperf --num-conns 100 --rate 10 class HomeController < ApplicationController def index render :text => \"<html>fibonnaci(29) = #{fibonacci(29)}</html>\" end private def fibonacci(number) return number if number < 2 fibonacci(number - 1) + fibonacci(number - 2) end end Monday, March 2, 2009

Tomcat 1 runtime, thread-safe: 176 MB 3 runtimes: 200 MB 5 runtimes: 244 MB Jetty 1 runtime, thread-safe: 193 MB 3 runtimes: 204 MB 5 runtimes: 245 MB Glassﬁsh 1 runtime, thread-safe: 315 MB 3 runtimes: 370 MB 5 runtimes: 417 MB Monday, March 2, 2009

jruby -S gem install mongrel cd railsapp jruby script/server Glassﬁsh v3 (gem) http://wiki.jruby.org/wiki/JRuby_on_Rails_in_GlassFish jruby -S gem install glassfish jruby -S glassfish Monday, March 2, 2009

Warbler http://wiki.jruby.org/wiki/Warbler jruby -S gem install warbler cd railsapp jruby -S warble Monday, March 2, 2009

jruby -S gem install jetty-rails cd railsapp jruby -S jetty_rails http://jetty-rails.rubyforge.org/ Monday, March 2, 2009

Eu ouvi dizer que Jruby é lento! Monday, March 2, 2009

httperf --num-conns 2500 --rate 25 guj2: ~20 resp/s Monday, March 2, 2009

httperf --num-conns 8000 --rate 140 Monday, March 2, 2009

httperf --num-conns 8000 --rate 140 guj3: ~140 resp/s vs 20 resp/s Monday, March 2, 2009

“como?” Monday, March 2, 2009

Cache! Monday, March 2, 2009

Cache! container Rails (JRuby) Servlet Context fragmento fragmento Rails fragmento fragmento (JRuby) fragmento fragmento fragmento fragmento Rails (JRuby) Monday, March 2, 2009

Conexões ao banco Monday, March 2, 2009

Mongrel http Rails Mongrel http Rails Proxy Reverso Mongrel / http Rails Load Balancer Mongrel http Rails Mongrel http Rails Monday, March 2, 2009

Mongrel http Rails Mongrel http Rails Proxy Reverso Mongrel / http Rails Pool? Load Balancer Mongrel http Rails Mongrel http Rails Monday, March 2, 2009

JRuby Connection Pool Runtime JRuby Runtime JDBC JRuby JRuby Rack Adapter Runtime Filter (jndi) JRuby Runtime JRuby Runtime Monday, March 2, 2009

“” Não importa a tecnologia, Monday, March 2, 2009

“” Não importa a tecnologia, desde que você a conheça muito bem! Monday, March 2, 2009

+ Monday, March 2, 2009

http://code.google.com/p/activehibernate/ class Person include Hibernate primary_key_accessor :id, :long h_component :address, [[:street,:string], [:city,:string]] end Monday, March 2, 2009

No. Ribs! class Blog Ribs! :table => :fox_blog do |r| r.id.primary_key! r.title :column => :blog_title r.body :column => :content_text r.something.avoid! end end Monday, March 2, 2009

Spring <beans xmlns=\"...\"> <lang:jruby id=\"messageService\" script-interfaces=\"br.com.caelum.Messenger\" script-source=\"classpath:ruby_messenger.rb\"> <lang:property name=\"message\" value=\"Hello World!\"/> </lang:jruby> <bean id=\"businessLogic\" class=\"br.com.caelum.Logic\"> <constructor-arg ref=\"messageService\" /> </bean> </beans> Monday, March 2, 2009

MagLev Monday, March 2, 2009

(J)MagLev Monday, March 2, 2009

Dúvidas? Obrigado! fabio.kung@caelum.com.br Monday, March 2, 2009

JRuby on Rails

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