#13059: High memory usage during compilation -------------------------------------+------------------------------------- Reporter: domenkozar | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.2-rc2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: x86_64 Type of failure: Compile-time | (amd64) performance bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by dfeuer): I've bisected some more. It looks almost certain that the change causing this problem was 54b887b5abf6ee723c6ac6aaa2d2f4c14cf74060, "Improve typechecking of instance defaults", whose commit message mentions that it slows down a test that involves a very large number of instance declarations. That message claims that real programs don't have nearly so many, but perhaps `store` proves that wrong. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13059#comment:6 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler