RE: [Haskell-cafe] What's a thread doing / Erlang-style processes /Message passing

On 06 December 2005 10:28, Joel Reymont wrote:

I'm finding myself in dire need of monitoring the Haskell runtime. More precisely, I would like to know what each that I launch is doing at a given point in time.

Is there a way to obtain this information now? I would be fine with knowing if a thread is blocking on a foreign call, MVar or something like that.

If you compile with -debug, and run with +RTS -Ds you get a scheduler trace which might help. Cheers, Simon