#7258: Compiling DynFlags is jolly slow -------------------------------------+------------------------------------- Reporter: simonpj | Owner: simonpj Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.6.1 Resolution: | Keywords: deriving-perf Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by tdammers): I don't have -O graphs yet, unfortunately it takes a good while to generate those (I aborted the -O2 one after running all night and only making it to 420 fields). I'll start up a job and report back. One-shot experiments do suggest though that pretty-printing and register allocation aren't going to be bottlenecks here either. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/7258#comment:53 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler