How to measure the execution time of the ruby code inside API controller's action when query is-CodePudding

There is an api query that response takes 6 seconds. I am looking in Datadog, and that looks like all SQL queries take an exec time of 2 seconds. What the rest of the time is not clear. Maybe do you know some gems or tools how can I measure the execution time? Many thanks for any advice.

CodePudding user response：

You can use Benchmark

require 'benchmark'

puts Benchmark.measure { #code_you_want_to_measure }

CodePudding user response：

Consider rack-mini-profiler.

Features

Database profiling - Currently supports Mysql2, Postgres, Oracle (oracle_enhanced ~> 1.5.0) and Mongoid3 (with fallback support to ActiveRecord)

Call-stack profiling - Flame graphs showing time spent by gem

Memory profiling - Per-request memory usage, GC stats, and global allocation metrics