rspec --profile gives a performance overview

Using --profile in your rspec command line allows you to see the slowest 10 examples in your test suite, along with a speed benchmark.

For more, see:- https://rspec.info/features/3-13/rspec-core/configuration/profile/

Example:

$ bundle exec rspec ./path/to/my/test.rb:90

Top 10 slowest examples (54.21 seconds, 73.1% of total time):

  # displays list of examples here with benchmark

Finished in 1 minute 7.22 seconds

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