Spec Performance

Slow tests reduce productivity and discourage running tests frequently. This skill covers techniques for optimizing RSpec test suite performance.

Profiling Slow Tests

Built-in Profiler

# Show 10 slowest examples
rspec --profile 10

# In spec_helper.rb for always-on profiling
RSpec.configure do |config|
  config.profile_examples = 10
end

Detailed Timing