HUGLO: Hyper-Ultra-Giga Low-Overhead Tracing Profiler for Ruby

I’ve built what I think is a pretty neat Ruby tracing profiler. It captures four event streams: Ruby function calls, system calls, thread-state changes, and garbage-collection activity, while adding less than 30 ns of overhead per Ruby function call, low enough for continuous use in large-scale production systems. As far as I know, no other Ruby tracer offers this mix of signals at this cost. If…