#9630: compile-time performance regression (probably due to Generics) -------------------------------------+------------------------------------- Reporter: hvr | Owner: simonpj Type: bug | Status: patch Priority: high | Milestone: 8.0.1 Component: Compiler | Version: 7.9 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: #9583, #10293 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonpj): Splitting `binary` as done in comment:23 will improve matters. As you say it doesn't fix GHC; indeed it'll make the problem less egregious. Just to check, then: does comment:22 give a standalone case, independent of the `binary` class, that demonstrates the effect of splitting the `Binary` class into two? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9630#comment:26 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler