Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Estratégias para tunar sua aplicação rails
Search
Cirdes
November 29, 2014
Programming
1
66
Estratégias para tunar sua aplicação rails
Palestra na RuPy 2014
Cirdes
November 29, 2014
Tweet
Share
More Decks by Cirdes
See All by Cirdes
Testando aplicações Rails com Playwright
cirdes
0
60
Ferramentas para CTO`s
cirdes
0
56
Aumentando O Poder Do Seu HTML Com AngularJS
cirdes
0
84
Getting Started with Angular.JS
cirdes
2
460
Como desenvolver um produto escalável com uma linguagem: Nova, lente e insegura
cirdes
0
160
Boas práticas usando RSpec
cirdes
0
290
Como construir uma Aplicação que consuma e produza updates no Twitter usando Python.
cirdes
0
37
Other Decks in Programming
See All in Programming
週次リリースを実現するための グローバルアプリ開発
tera_ny
1
1.2k
「とりあえず動く」コードはよい、「読みやすい」コードはもっとよい / Code that 'just works' is good, but code that is 'readable' is even better.
mkmk884
6
1.4k
functionalなアプローチで動的要素を排除する
ryopeko
1
210
return文におけるstd::moveについて
onihusube
1
1.4k
traP の部内 ISUCON とそれを支えるポータル / PISCON Portal
ikura_hamu
0
180
Androidアプリの One Experience リリース
nein37
0
1.2k
Rubyでつくるパケットキャプチャツール
ydah
0
170
PHPUnitしか使ってこなかった 一般PHPerがPestに乗り換えた実録
mashirou1234
0
420
Итераторы в Go 1.23: зачем они нужны, как использовать, и насколько они быстрые?
lamodatech
0
1.4k
非ブラウザランタイムとWeb標準 / Non-Browser Runtimes and Web Standards
petamoriken
0
430
chibiccをCILに移植した結果 (NGK2025S版)
kekyo
PRO
0
130
DMMオンラインサロンアプリのSwift化
hayatan
0
190
Featured
See All Featured
Code Reviewing Like a Champion
maltzj
521
39k
Embracing the Ebb and Flow
colly
84
4.5k
Java REST API Framework Comparison - PWX 2021
mraible
28
8.3k
Adopting Sorbet at Scale
ufuk
74
9.2k
Keith and Marios Guide to Fast Websites
keithpitt
410
22k
The Cult of Friendly URLs
andyhume
78
6.1k
Building Applications with DynamoDB
mza
93
6.2k
Testing 201, or: Great Expectations
jmmastey
41
7.2k
Site-Speed That Sticks
csswizardry
3
270
Distributed Sagas: A Protocol for Coordinating Microservices
caitiem20
330
21k
Chrome DevTools: State of the Union 2024 - Debugging React & Beyond
addyosmani
3
240
Agile that works and the tools we love
rasmusluckow
328
21k
Transcript
ESTRATÉGIASDE CACHE PARA TUNAR SUA APLICAÇÃO RAILS
CIRDES HENRIQUE ENGENHEIRO DA COMPUTAÇÃO - UFPE ORGANIZADOR DO ABRIL
PRO RUBY C0-FUNDADOR E DEV DO EVENTICK
None
335 MIL TICKETS EMITIDOS 3600 ORGANIZADORES 1200 EVENTOS FUTUROS
RECIFE
RECIFE
O EVENTICK FICOU FORA DO AR POR 30 MINUTOS
ANTES DA SOLUÇÃO, UM PASSO ATRÁS: MONITORAR A APLICAÇÃO
NewRelic Nazar.io HoneyBadger Logentries Inspectlet The Informant
SOA?
SINGLE RAILS APP LIKE SHOPIFY
70% DAS REQUISIÇÕES BATEM NA CACHE
O QUE É CACHE?
Cache é um componente que guarda informações de forma TRANSPARENTE
para que futuras requisições sejam mais RÁPIDAS
QUAL A CARACTERÍSTICA DA CACHE?
O QUE USA CACHE?
DO QUE É CONSTITUÍDA UMA CACHE?
CACHE = CASH
ARQUITETURA DE MEMÓRIA
CACHE HIT / CACHE MISS / CACHE RATIO
COMO MAXIMIZAR O CACHE HIT?
BÉLÁDY’S ALGORITHM
RANDOM REPLACEMENT (RR)
LEAST-FREQUENTLY USED (LFU)
LEAST-RECENTLY USED (LRU)
O QUE É WEBCACHING?
REQUISIÇÃO Rails App Reverse Proxy CDN Proxy Browser
CACHE SERVER-SIDE CACHE CLIENT-SIDE
PAGE CACHE ACTION CACHE FRAGMENT CACHE RAILS CACHE
WRITE ON DISK BYPASS RAILS APPLICATION ENTIRE STATELESS PAGES NÃO
FUNCIONA NO HEROKU PAGE CACHE
PAGE CACHE class WeblogController < ActionController::Base caches_page :show, :new def
update expire_page action: 'show', id: params[:list][:id] end end
SIMILAR TO PAGE CACHE RUN FILTERS ACTION CACHE
ACTION CACHE class PostsController < ActionController::Base caches_action :show, expires_in: 1.hour
end
DEPRECATED
HTML CACHE AVAILABLE IN RAILS 4 FRAGMENT CACHE
RAILS CACHE FRAGMENT AND ACTION CACHE BUILD ON RAILS.CACHE CONFIG.ACTION_CONTROLLER.PERFORM_CACHING
= TRUE
ActiveSupport::Cache::Store FileStore MemoryStore NullStore MemCacheStore
HOW TO USE IT Rails.cache.write 'foo', 'bar' Rails.cache.fetch 'foo' Rails.cache.write
:foo, {a: 'b'}
FRAGMENT CACHING Rais.cache.fetch 'key', expires_in: 5.minutes, race_condition_ttl: 10.seconds do #code
end
FRAGMENT CACHING <% cache "event-#{event.id}" do %> <%= render event
%> <% end %>
FRAGMENT CACHING <% cache “event-#{event.id}”, expires_in: 1.year do %> <%=
render event %> <% end %>
FRAGMENT CACHING def update expire_fragment("event-#{event.id}") end
FRAGMENT CACHING <% cache [:recent, event] do %> <%= render
event %> <% end %>
FRAGMENT CACHING ACTIVESUPPORT::CACHE.EXPAND_CACHE_KEY [:RECENT, EVENT] => "RECENT/EVENTS/12510-20141128131506743910000"
FRAGMENT CACHING <% cache :recent_attendees, expires_in: 5.minutes do %> <%=
render partial: 'recent', collection: Attendees.recent %> <% end %>
FRAGMENT CACHING <% cache(cache_key_for_attendees) do %> <%= render partial: 'recent',
collection: Attendees.recent %> <% end %>
FRAGMENT CACHING module AttendeesHelper def cache_key_for_attendees count = Attendee.count max_updated_at
= Attendee.maximum(:updated_at).try(:utc).try(:to_s, :number) "attendees/all-#{count}-#{max_updated_at}" end end
FRAGMENT CACHING <% cache(cache_key_for_attendees) do %> <%= render partial: 'recent',
collection: Attendees.recent %> <% end %>
PROBLEMA COM TEMPLATE
CACHE Digests <!-- app/views/events/show.html.erb --> <% cache ["v1", @event] do%>
<h1>Team: <%= @event.title %></h1> <%= render @event.attendees %> <% end %> <!-- app/views/attendees/_attendee.html.erb --> <% cache ["v1", attendee] do %> <span><%= attendee.name %></span> <span><%= attendee.email %></span> <% end %>
CACHE Digests
CACHE Digests
RUSSIAN DOLL
Russian Doll
Russian Doll <% cache(cache_key_for_attendees) do %> All available attendees: <%
Attendee.all.each do |a| %> <% cache(a) do %> <p><%= a.name %></p> <% end %> <% end %> <% end %>
KNOWING IS NOT ENOUGH WE MUST APPLY
WILLING IS NOT ENOUGH WE MUST DO