StackProf: The Holy Grail of Rails Profiling | Scout APM BlogThe holy grail of performance profiling is finding a tool that's safe to run in production. A tool that identifies slow code as it works "in the wild". Profiling code locally is never as good as production profiling: the load is small, hardware specs are different, and I'd need to pull down a huge chunk of data to simulate things. Enter StackProf, the production safe*, holy grail of Ruby profiling
