#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): Comparing the latest 3 graphs, we can see that `tryToInline` more badly than the other cost centres, at least in the misbehaving examples, while the other top cost centres seem to scale somewhat proportionally. `simpl_binds` is the largest one in most cases, but `tryToInline` is "more nonlinear" for the `show` and `read` examples, surpassing it between 150 and 200 fields in the `show` example, and (educated guess) around 500 fields in the `read` example. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/7258#comment:83 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler