Tech talk at Tokyo Haskell by Luite Stegeman
Haskell has a reputation for "if it compiles, it runs... but it probably still has a space leak." The tools for investigating the runtime behaviour of Haskell programs have always been spartan compared to what's available in environments like .NET, the JVM, or JavaScript.
In this talk we'll look at how Haskell actually works under the hood, compiled code and bytecode, and how this affects the tooling for debugging and profiling. We'll then see what the GHC developers have been doing recently to close the gap. Finally, we'll look at a new tool that brings several runtime-analysis capabilities together under one roof.
