#7561: Unnecessary Heap Allocations - Slow Performance --------------------------------------+------------------------------------- Reporter: wurmli | Owner: Type: bug | Status: closed Priority: normal | Milestone: 7.8.1 Component: Compiler | Version: 7.6.1 Resolution: duplicate | Keywords: Os: Linux | Architecture: x86_64 (amd64) Failure: Runtime performance bug | Difficulty: Unknown Testcase: | Blockedby: Blocking: | Related: --------------------------------------+------------------------------------- Changes (by simonmar): * status: new => closed * resolution: => duplicate Comment: So I expect that profiling isn't applying the state hack (perhaps the cost centres get in the way). Therefore I'll close this as a dup, but we should bear in mind the state hack is biting us in subtle and unexpected ways (e.g. big performance differences with profiling). -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/7561#comment:10 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler