How can I benchmark my Rails application's database queries?
An example of an AI chatbot conversation about benchmarking database queries in Rails applications.
How can I benchmark my Rails application's database queries?
You can use tools like ActiveRecord's explain method, or gems like bullet and rack-mini-profiler to analyze query performance.
What is the explain method and how do I use it?
The explain method provides a detailed report on how a SQL query is executed. You can call it on an ActiveRecord relation like this: User.where(active: true).explain.
Are there any specific gems you recommend for performance monitoring?
Yes, I recommend using bullet to identify N+1 queries and rack-mini-profiler for real-time performance monitoring.
How can I optimize my queries based on the benchmark results?
You can optimize by adding indexes, eager loading associations, and rewriting complex queries to be more efficient.
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