#10108: Dramatic slowdown with -O2 bytestream and list streams combined. -------------------------------------+------------------------------------- Reporter: Truman | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.10.2 Component: Compiler | Version: 7.8.4 Resolution: | Keywords: Operating System: Linux | Architecture: Type of failure: Runtime | Unknown/Multiple performance bug | Test Case: Blocked By: | break_in.hs Related Tickets: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by simonpj): Interesting. The actual code in `Main` never gets very big, which is promising. Could you add `-ddump-rule-firings -ddump-simpl` to your command line and give the log files for that? Simon -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10108#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler