Profiling Crystal on OSX | Mike Perham2016-06-24 How do I profile my program to determine where it is slow? This is one of the first questions any developer asks after building a non-toy program. Crystal has a reputation for being quite fast but every language has tricks and optimizations we miss. Since Crystal uses the LLVM compiler suite, we can reuse a lot of the infrastructure which knows about LLVM-compiled binaries. Net result:
