DevCommerce Conference 2016: Performance, anti-patterns e stacks pra desenvolver e-commerce, com cases reais
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Fabio Akita, Co-Founder da Codeminer 42, palestrou sobre "Performance, anti-patterns e stacks pra desenvolver e-commerce, com cases reais", no DevCommerce Conference 2016. O DevCommerce Conference 2016 aconteceu nos dias 06 e 07 de junho de 2016, no Hotel Tivoli em São Paulo-SP http://devcommerce2016.imasters.com.br/
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DevCommerce Conference 2016: Performance, anti-patterns e stacks pra desenvolver e-commerce, com cases reais
- 1. PREMATURE OPTIMIZATION The Root of ALL Evil @akitaonrails
- 7. Rubyconf Brasil 2016 – September 23 - 24
- 8. Rubyconf Brasil 2016 – September 23 - 24
- 11. “Premature Optimization is the Root of All Evil” - Don Knuth
- 14. SPA e-commerce
- 19. Client #1
- 24. $ 4,000
- 25. $ 4,000 ($ 7 MI/yr revenue - 0.68%)
- 26. Client #2
- 30. $ 100,000+
- 31. $ 100,000+ ($ 800 MI/yr revenue - 0.15%)
- 33. • Minimum IT Cost:
- 34. • Minimum IT Cost: • USD 1000 - Cloud Services
- 35. • Minimum IT Cost: • USD 1000 - Cloud Services • USD 3000 - 1 Developer
- 36. • Minimum IT Cost: • USD 1000 - Cloud Services • USD 3000 - 1 Developer • USD 4000 - 1“Responsible”(Manager, Marketing, etc)
- 37. • Minimum IT Cost: • USD 1000 - Cloud Services • USD 3000 - 1 Developer • USD 4000 - 1“Responsible”(Manager, Marketing, etc) • Total: USD 8.000/month (USD 96.000/year)
- 38. • Minimum IT Cost: • USD 1000 - Cloud Services • USD 3000 - 1 Developer • USD 4000 - 1“Responsible”(Manager, Marketing, etc) • Total: USD 8.000/month (USD 96.000/year) • Minimum Business Requirement:
- 39. • Minimum IT Cost: • USD 1000 - Cloud Services • USD 3000 - 1 Developer • USD 4000 - 1“Responsible”(Manager, Marketing, etc) • Total: USD 8.000/month (USD 96.000/year) • Minimum Business Requirement: • Revenue: > USD 2 MI / year
- 40. • Minimum IT Cost: • USD 1000 - Cloud Services • USD 3000 - 1 Developer • USD 4000 - 1“Responsible”(Manager, Marketing, etc) • Total: USD 8.000/month (USD 96.000/year) • Minimum Business Requirement: • Revenue: > USD 2 MI / year • IT Cost / Revenue ratio: < 5%
- 44. Open > Proprietary (prefer“Best of Breed”)
- 46. Cloud > On-Premise (Infrastructure/Platform as a Service)
- 53. SaaS > IaaS (avoid doing yourself)
- 56. SEO & SEM (should not be Astrology!)
- 60. • /do/you/have/friendly/urls? • sitemap.xml? • Proper HTTP 301 Redirections?
- 61. • /do/you/have/friendly/urls? • sitemap.xml? • Proper HTTP 301 Redirections? • Social Network buttons?
- 62. • /do/you/have/friendly/urls? • sitemap.xml? • Proper HTTP 301 Redirections? • Social Network buttons? • Periodic ORIGINAL CONTENT publishing?
- 63. • /do/you/have/friendly/urls? • sitemap.xml? • Proper HTTP 301 Redirections? • Social Network buttons? • Periodic ORIGINAL CONTENT publishing? • No duplication duplication of content content?
- 64. • /do/you/have/friendly/urls? • sitemap.xml? • Proper HTTP 301 Redirections? • Social Network buttons? • Periodic ORIGINAL CONTENT publishing? • No duplication duplication of content content? • THEN OK!
- 66. I. II. III. IV. V. VI. VII. VIII. IX. X. XI. XII. Codebase One codebase tracked in revision control, many deploys Dependencies Explicitly declare and isolate dependencies Config Store config in the environment Backing services Treat backing services as attached resources Build, release, run Strictly separate build and run stages Processes Execute the app as one or more stateless processes Port binding Export services via port binding Concurrency Scale out via the process model Disposability Maximize robustness with fast startup and graceful shutdown Dev/prod parity Keep development, staging, and production as similar as possible Logs Treat logs as event streams Admin processes Run admin/management tasks as one-off processes
- 69. y = x * 320
- 70. y = x * 320 y = (x << 8) + (x << 6)
- 72. • NO Test Suite with below 70% coverage
- 73. • NO Test Suite with below 70% coverage • NO CodeClimate below 3.0 rating
- 74. • NO Test Suite with below 70% coverage • NO CodeClimate below 3.0 rating • NO source code file with hundreds of LOC
- 75. • NO Test Suite with below 70% coverage • NO CodeClimate below 3.0 rating • NO source code file with hundreds of LOC • NO COPY AND PASTE EVERYWHERE!!!
- 76. • NO Test Suite with below 70% coverage • NO CodeClimate below 3.0 rating • NO source code file with hundreds of LOC • NO COPY AND PASTE EVERYWHERE!!! • NO functions with more than 1 page down
- 77. • NO Test Suite with below 70% coverage • NO CodeClimate below 3.0 rating • NO source code file with hundreds of LOC • NO COPY AND PASTE EVERYWHERE!!! • NO functions with more than 1 page down • NO table with dozens of fields
- 78. • NO Test Suite with below 70% coverage • NO CodeClimate below 3.0 rating • NO source code file with hundreds of LOC • NO COPY AND PASTE EVERYWHERE!!! • NO functions with more than 1 page down • NO table with dozens of fields • NO hours to clone, setup and deploy!!
- 80. Spree: 68k LOC 40k are Specs! (60%)
- 81. Magento2: 300k LOC 127k are Specs! (< 30%)
- 88. PRIORITIES!
- 96. • SQL N+1 Queries
- 97. • SQL N+1 Queries • Too much SQL
- 98. • SQL N+1 Queries • Too much SQL • Too much SQL LIKE instead of Elastic
- 99. • SQL N+1 Queries • Too much SQL • Too much SQL LIKE instead of Elastic • Lack of proper SQL indexes
- 100. • SQL N+1 Queries • Too much SQL • Too much SQL LIKE instead of Elastic • Lack of proper SQL indexes • Too much unused code that was not removed
- 101. • SQL N+1 Queries • Too much SQL • Too much SQL LIKE instead of Elastic • Lack of proper SQL indexes • Too much unused code that was not removed • No CDN or proper HTTP Cache invalidation headers
- 102. • SQL N+1 Queries • Too much SQL • Too much SQL LIKE instead of Elastic • Lack of proper SQL indexes • Too much unused code that was not removed • No CDN or proper HTTP Cache invalidation headers • Too much synchronous work that should be async jobs
- 104. - Alan Kay
- 105. “Make it Work - Alan Kay
- 106. “Make it Work Make it Correct - Alan Kay
- 107. “Make it Work Make it Correct Make it Fast - Alan Kay
- 108. “Make it Work Make it Correct Make it Fast Make it Cheap” - Alan Kay
- 114. You != Unicorn (nor Facebook, Google, Amazon, etc)
- 121. 275k Merchants $ 72 Mi - Q1 2016 Founded: 2004, with Rails pre-1.0
- 123. Rails works because it didn’t have Facebook, Google or Microsoft
- 124. “Casa de Ferreiro, Espeto de FERRO!”
- 126. • Increase Revenue > Lower Costs
- 127. • Increase Revenue > Lower Costs • “Best of Breed”Open Source
- 128. • Increase Revenue > Lower Costs • “Best of Breed”Open Source • SaaS > PaaS > IaaS > On-Premise
- 129. • Increase Revenue > Lower Costs • “Best of Breed”Open Source • SaaS > PaaS > IaaS > On-Premise • SEO & SEM =~ Astrology
- 130. • Increase Revenue > Lower Costs • “Best of Breed”Open Source • SaaS > PaaS > IaaS > On-Premise • SEO & SEM =~ Astrology • Maintainability > Performance
- 131. • Increase Revenue > Lower Costs • “Best of Breed”Open Source • SaaS > PaaS > IaaS > On-Premise • SEO & SEM =~ Astrology • Maintainability > Performance • PRIORITIES!!
- 132. • Increase Revenue > Lower Costs • “Best of Breed”Open Source • SaaS > PaaS > IaaS > On-Premise • SEO & SEM =~ Astrology • Maintainability > Performance • PRIORITIES!! • No Metrics, No Optimization
- 133. • Increase Revenue > Lower Costs • “Best of Breed”Open Source • SaaS > PaaS > IaaS > On-Premise • SEO & SEM =~ Astrology • Maintainability > Performance • PRIORITIES!! • No Metrics, No Optimization • You != Unicorn
- 134. PREMATURE OPTIMIZATION is the Root of all Evil