rbspy/rbspy: Sampling CPU profiler for Ruby

Have a running Ruby program that you want to profile without restarting it? Want to profile a Ruby command line program really easily? You want rbspy! rbspy can profile any Ruby program just by running 1 simple command. rbspy lets you profile Ruby processes that are already running. You give it a PID, and it starts profiling. It's a sampling profiler, which means it's low overhead and safe to run in production. rbspy lets you record profiling data, save the raw profiling data to disk, and then analyze it in a variety of different ways later on.