Re: [Haskell-cafe] Hierarchical tracing for debugging laziness

Look how one can watch the evaluation tree of a computation, to debug laziness-related problems.

You might like the old Hood/GHood: http://hackage.haskell.org/package/hood http://hackage.haskell.org/package/GHood Background info/papers: http://www.ittc.ku.edu/csdl/fpg/Tools/Hood http://www.ittc.ku.edu/csdl/fpg/node/26 http://community.haskell.org/~claus/GHood/ Claus