RSpecでは --profile オプションをつけることで $ rspec --profile Top 10 slowest examples (17.92 seconds, 65.4% of total time): AndroidMarket use stub content behaves like android_market_base_examples #get_overall_top_selling_new_paid_apps 1.96 seconds ./spec/android_market_spec.rb:121 AndroidMarket use stub content behaves like android_market_base_examples #get_top_selling_paid_apps_in_category 1.94 seconds ./spe