[Haskell] memory management

[Simon Peyton-Jones]

| In the early to mid '90s we built various heap-profiling tools to
| examine the characteristics of heap data in lazy functional programs.
| You can find papers describing this work by Googling "heap profiling".
| You may be particularly interested in the investigation of "heap lag"
| and "heap drag" -- see for example the ICFP'96 paper.  Others have
| worked on similar tools since, but I'm not sure how extensive heap
| profiling facilities are in ghc, the most widely used implementation of
| Haskell.

GHC has pretty good heap profiling, including lag/drag/void.  I hope they are still working smoothly, although I don't think they have received much love recently.

Simon