Re: [GHC] #10528: compile time performance regression with OverloadedStrings and Text

#10528: compile time performance regression with OverloadedStrings and Text -------------------------------------+------------------------------------- Reporter: jakewheat | Owner: bgamari Type: bug | Status: merge Priority: high | Milestone: 7.10.3 Component: Compiler | Version: 7.10.2-rc2 Resolution: | Keywords: Operating System: Linux | Architecture: Type of failure: Compile-time | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by jakewheat): I wasn't able to see the speed up with the reduced test case code above either: ghc 7.10.2, text 1.2.1.1 {{{ time ghc Test.hs -c -fforce-recomp -Rghc-timing -O -package-db .cabal- sandbox/x86_64-linux-ghc-7.10.2-packages.conf.d/ <> real 0m2.958s user 0m2.908s sys 0m0.048s }}} ghc 7.10.2, text 1.2.1.2 {{{ time ghc Test.hs -c -fforce-recomp -Rghc-timing -O -package-db .cabal- sandbox/x86_64-linux-ghc-7.10.2-packages.conf.d/ <> real 0m2.954s user 0m2.892s sys 0m0.060s }}} ghc 7.10.1, text 1.2.1.2 {{{ time ghc Test.hs -c -fforce-recomp -Rghc-timing -O -package-db .cabal- sandbox/x86_64-linux-ghc-7.10.1-packages.conf.d/ <> real 0m0.289s user 0m0.280s sys 0m0.004s }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10528#comment:21 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler