Ruby China

ruby-china.org

- Ruby China - Rails - ruby.taobao.org



Gem



@huacnlee

“ Let's Party! — @Rei

2011-10-28

Ruby

• UCloud VPS



• 1 4 Core CPU VPS;



• 4GB



• MongoDB Cache



• UpYun



Assets



• 5M



+



Assets CDN

30000 27500 25000 22500 20000 17500 15000 12500 10000

7500 5000 2500









20K



30000 25000 20000 15000 10000

5000 0











Now





Now



300000 250000 200000 150000 100000

50000 0











Now



27K 270K

Topic.pluck(:user_id).uniq.count



Reply.pluck(:user_id).uniq.count







6500 6000





5500 5000





4500 4000









3000 2500





2000 1500





1000 500





rei huacnlee lgn21st luikore kgen bhuztez blacktulip chairy11 ibachue hooooopo

40,000 36,000 32,000 28,000 24,000 20,000 16,000 12,000

8,000 4,000

8 25



Google



8 30





13K





9 14



9 19



30K



9 24

() (GB)



8000000 7200000 6400000 5600000 4800000 4000000 3200000 2400000 1600000

800000 0

2013-05



UpYun



2013-11



2014-05



2014-11



















2015-05



2015-09



: 1.11 GB

900 Ruby

Topic.where(node_id: Node.jobs_id).pluck(:user_id).uniq.count

And…

Google

Homeland -

https://github.com/huacnlee/homeland/tree/single-app-rails-3.0

Shanghai on Rails

chinaonrails.com

“ chinaonrails Ruby China ”

– 2012-05-10

https://ruby-china.org/topics/3223#reply4

- 2010-8 - MySQL ; - Markdown

-



Ruby 1.9.2 Rails 3.0.0.rc2; simple_format

source 'http://rubygems.org'  gem 'rails', ‘3.0.0.rc2' gem 'mysql2'

gem ‘paperclip' gem 'authlogic'

gem 'will_paginate', '3.0.pre' gem 'memcache-client'

def index



@topics = Topic.last_actived.includes(:user,:node).limit(10)



@sections = Section.all.includes(:nodes)



end







def show



@topic = Topic.find(params[:id])



if current_user



Node.set_user_last_visited(current_user.id, @topic.node_id)



@topic.user_readed(current_user.id)



end



@node = @topic.node



@replies = @topic.replies.all



end







def reply



@topic = Topic.find(params[:id])



@reply = @topic.replies.build(params[:reply])







@reply.user_id = current_user.id



if @reply.save



flash[:notice] = "



"



else



flash[:notice] = @reply.errors.full_messages.join("<br />")



end



redirect_to topic_path(params[:id],:anchor => 'reply')



end

@lgn21st

Ruby Tuesday @ Hangzhou

…

@hooopo



@liuzihua



@chloerei



Twitter V2EX GitHub



Ruby

Design by @QCee

https://ruby-china.org/topics/8

GitCafe

source 'http://rubygems.org'  gem "rails", "3.1.1" gem "mongoid", "2.2.4" gem 'carrierwave', '0.5.6' gem 'mini_magick','3.3' gem 'mongoid_auto_increment_id', "0.2.2" gem "devise", "1.4.5" gem 'will_paginate', '3.0.pre2' gem 'omniauth', '0.3.0' gem "oa-openid", '0.3.0' gem 'dalli', '1.1.1' … gem "rails-i18n","0.1.8" gem 'redis-namespace','~> 1.0.2' gem "redis-objects", "0.5.2" gem "rdiscount","1.6.8" gem "settingslogic", "~> 2.0.6" gem "cells", "3.6.7" gem "resque", "~> 1.19.0", :require => "resque/server" gem "aws-ses", "~> 0.4.3" gem 'mail_view', :git => 'git://github.com/37signals/mail_view.git' gem "daemon-spawn", "~> 0.4.2" # gem "sprite-factory", "1.4.1" group :development do

gem 'capistrano', '2.9.0' gem 'chunky_png', “1.2.5" gem 'factory_girl_rails' end

def index @topics = Topic.last_actived.limit(10) @sections = Section.all render :stream => true

end  def show

@topic = Topic.find(params[:id]) @topic.hits.incr(1) @node = @topic.node @replies = @topic.replies.asc(:_id).all.cache if current_user

@topic.user_readed(current_user.id)

current_user.notifications.where(:reply_id.in =>

@replies.map(&:id), :read => false).update_all(:read => true)

end render :stream => true

end

• ruby-china.org



• Linode



• UI



• Markdown



• Wiki



• Devise



;



• Mongoid, Assets Pipeline, Carrierwave, redis-objects, cells



• Notification



• mongoid_auto_increment_id

RubyConf China 2011

Ruby China

• RubyConf China



• Ruby Tuesday



• Ruby



T



• Wiki



• GitHub Ruby China



• Ruby



• RailsCast China TeaHour;

Ruby



rubybbs.com



shanghaionrails



rubycn.org



thoughtrails.com



ruby-lang.org.cn



chinaonrails.com

by XiaoBo Liu

GitHub



Ruby China



@ashchan



@huacnlee



@chloerei @lgn21st

huacnlee/ruby-china ruby-china/ruby-china

GitHub

1400 1225



1,394













huacnlee



xdite



Commits



88 83 40

chloerei ashchan forresty



37 23 19

doitian qichunren xiaods



fredwu



bachue





Commit, 105

5 Commit 21

>rakestats +----------------------+-------+-------+---------+---------+-----+-------+ |Name|Lines|LOC|Classes|Methods|M/C|LOC/M| +----------------------+-------+-------+---------+---------+-----+-------+ |Controllers|1793|1471|37|208|5|5| |Helpers|489|414|0|54|0|5| |Models|1841|1424|27|146|5|7| |Mailers|16|15|2|1|0|13| |Javascripts|7633|5866|1|694|694|6| |Libraries|708|500|8|46|5|8| |Apispecs|1024|886|0|1|0|884| |Controllerspecs|720|613|0|0|0|0| |Featurespecs|37|33|0|0|0|0| |Helperspecs|461|378|0|0|0|0| |Libspecs|620|470|3|0|0|0| |Modelspecs|1405|1185|3|0|0|0| |Requestspecs|51|40|0|0|0|0| |Routingspecs|21|17|0|0|0|0| |Viewspecs|35|27|0|0|0|0| +----------------------+-------+-------+---------+---------+-----+-------+ |Total|16854|13339|81|1150|14|9| +----------------------+-------+-------+---------+---------+-----+-------+ CodeLOC:9690TestLOC:3649CodetoTestRatio:1:0.4

GitHub Issues 2015



Open PR 3

Open Issue 30



Merged PR 127



Closed Issue 230



Closed PR 54



Open PR



Merged PR



Closed PR



Closed Issue



Open Issue

• Ruby

•

•@ • Markdown

•

• API • Bug

• •

• Internet Explorer

• •

• Vote Up / Down

PR

UI



…

Ruby China



“”

KeyNotes



…

Ruby



JRuby



Rubinius Faya



Rails Benchmark

Unicorn



11 212m

Rails



Ruby

100ms

50ms

Homeland (Rails 3.0) 2014-05 (Rails 4.1)



2011-11 (Rails 3.1) Now (Rails 4.2)



Ruby China



2013-05 (Rails 3.2)



2013-12 (Rails 4.0)



































Response Time (ms)



/



/topics



/topics/:id



/topics/node:id



/:login

•



•



•



View



Fragment Cache



•



• JavaScript



• Rails API



render collection: items



• MRI Ruby IO



Thread



• Gem



Changelog, PR;



• GC ;



• Gem

GC

TuneMyGC

https://tunemygc.com/

- evanphx/benchmark-ips -



Benchmark



- MiniProfiler/rack-mini-profiler -



- rails/rails-perftest -



- SamSaffron/memory_profiler -



allocated



Gem



- ruby-prof/ruby-prof -



“



”

IO

def index @threads = [] @threads << Thread.new do @suggest_topics = Topic.suggest.limit(3) end

 @threads << Thread.new do @topics = Topic.last_actived if current_user @topics = @topics.without_nodes(current_user.blocked_node_ids) @topics = @topics.without_users(current_user.blocked_user_ids) else @topics = @topics.without_hide_nodes end @topics = @topics.paginate(page: params[:page], per_page: 22) end @threads.each(&:join)

end

updated_at

irb> reply.cache_key "replies/256261-20150825031859640000000"

<% cache([reply]) do %> <div class="reply"> ... </div>

<% end %>

Ruby China -



Rails



Rails 3.0.0 … 4.2.x



Ruby 1.9.3 … 2.2.3



Gems Bootstrap

Homeland

2011-11 - v1

2013 - v1.1

2014-5 - V1.3

Now

• Rails Router URL Helper



CURD ERB)



Less SQL



• ActiveModel Scope Topic.last_actived.without_hide_nodes



•



Helper



View user_name_tag, user_avatar_tag



• Rails



4.x.0



• GitHub



•

Ruby

Ruby China

• Ruby Rails;

• • •

Ruby

END

QA

- @huacnlee - huacnlee@gmail.com