profiteur

Profiteur is a visualiser for GHC .prof files.

Installation

cabal install profiteur

Installation via nix

nix-shell -p haskellPackages.profiteur

Usage

ghc --make -auto-all -prof your-program.hs
./your-program +RTS -p -RTS
profiteur your-program.prof

Open the output, your-program.prof.html, in a web browser.

See also example/Makefile.

A tree browser and a tree map are available to browse the profile.

Expand cost centres by clicking the chevrons in the tree browser or double-clicking them in the tree map.