rblineprof shows you lines of code that are slow.
Peek into how much each line of your Rails application takes throughout a request.
Format and print the result of rblineprof (github.com/tmm1/rblineprof)
A console-based browser for rblineprof results
Rack middleware for rblineprof (github.com/tmm1/rblineprof)
Rack middleware for rblineprof (github.com/tmm1/rblineprof)
pilfer uses rblineprof to measure how long each line of code takes to execute and the number of times it was called.