There's a whole section in the user manual about profiling (http://haskell.org/ghc). You can find a paper or two about the underlying ideas on my publications page under "Profiling". http://research.microsoft.com/~simonpj/Papers/papers.html#profiling The GHC 4.08 distribution for Win32 should have profiling, and I *think* the GHC5 thrill-seekers release does too, but Reuben can confirm. Incidentally, there's a special list for GHC users, glasgow-haskell-users@haskell.org mailto:ghc-users@haskell.org , to avoid troubling the main Haskell list Simon -----Original Message----- From: Andre W B Furtado [mailto:awfurtado@uol.com.br] Sent: 21 July 2001 01:07 To: haskell@haskell.org Subject: Profiles in GHC Can anyone give me a brief explanation (or show me where in the web I can find some info) about using the profiling library in GHC? Is it avaible for Windows 98/NT? Thanks in advance, Andre W B Furtado