#8901: (very) bad inline heuristics -------------------------------------+------------------------------------- Reporter: heisenbug | Owner: Type: bug | Status: closed Priority: normal | Milestone: Component: Compiler | Version: 7.7 Resolution: invalid | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Runtime | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by heisenbug): Here come the latest stats (with today's GHC HEAD) : {{{ $ ls -l ./libraries/time/dist-install/build/Data/Time/Format.*o -rw-r--r-- 1 ggreif lb40 482568 Jan 12 16:24 ./libraries/time/dist- install/build/Data/Time/Format.dyn_o -rw-r--r-- 1 ggreif lb40 514776 Jan 12 16:24 ./libraries/time/dist- install/build/Data/Time/Format.o $ wc -l ./libraries/time/lib/Data/Time/Format.hs 254 ./libraries/time/lib/Data/Time/Format.hs $ strip ./libraries/time/dist-install/build/Data/Time/Format.*o $ ls -l ./libraries/time/dist-install/build/Data/Time/Format.*o -rw-r--r-- 1 ggreif lb40 201512 Jan 12 17:26 ./libraries/time/dist- install/build/Data/Time/Format.dyn_o -rw-r--r-- 1 ggreif lb40 187712 Jan 12 17:26 ./libraries/time/dist- install/build/Data/Time/Format.o $ ghc -e "187712/254" 739.0236220472441 }}} As you can see a single line of Format.hs gets compiled to 739 stripped bytes. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8901#comment:12 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler