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Created January 13, 2017 13:21
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rails-performance.md

Rails Performance

Upgrade the Ruby version

Use Apache Benchmark (ab) to perform tests over each Ruby version.

Database

There are two mainly ways to do that:

  • Make less queries;
  • Make fast queries;

Mixing indexes

  • lol_dba gem

N+1

  • bullet gem

Counter cache

Rack-Mini-Profiler and Flamegraph

Rails Panel

find_each instead each

@yoshioteruia
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screen shot 2017-01-13 at 12 15 01 pm

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