#13930: Cabal configure regresses in space/time -------------------------------------+------------------------------------- Reporter: bgamari | Owner: (none) Type: bug | Status: new Priority: high | Milestone: 8.4.1 Component: Compiler | Version: 8.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Runtime | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: #13982 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by bgamari): My apologies, Simon: I believe I was mistaken when I said this required profiling to reproduce. This can be reproduced with current GHC `master` with, {{{ $ git clone git://github.com/haskell/cabal $ cd cabal $ ghc-pkg unregister Cabal $ cabal install Cabal/ --allow-newer $ cabal install cabal-install/ --allow-newer --only-dependencies $ cd cabal-install $ cabal build }}} The `unregister Cabal` bit is necessary for some GHC versions due to Cabal bug [[https://github.com/haskell/cabal/issues/4509|#4509]]. For the record, a quick profile reveals that most of the allocations seem to be coming from `Distribution.ParseUtils` and `Distribution.Compat.ReadP` (both in `Cabal`). -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13930#comment:7 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler