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N+1 Query And Performance Optimizations | Ruby On Rails For Beginners Part 9

Learn what N+1 queries are, and how to fix them with this guide on the Bullet gem. Afterwards, learn how to do batch transactions with the ActiveRecord-Import gem, and how to do some basic Benchmarks in Rails 7.

Links:
https://medium.com/@Todd_Rizley/optimizing-your-rails-app-268ea43bd9ec
https://github.com/flyerhzm/bullet
https://apidock.com/rails/ActiveRecord/CounterCache/ClassMethods/reset_counters
https://github.com/zdennis/activerecord-import
Source: https://github.com/Deanout/blog_application/tree/episode-9

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Timestamps
0:00 Performance Optimizations In Rails 7
1:14 Fix N+1 Queries With The Bullet Gem
6:18 Solve Repeated Database Hits With A Counter Cache
9:45 Benchmark Performance With Rails Benchmark.measure
15:54 Improve Looped Insert Performance With ActiveRecord-Import Transactions

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