#12028: Large let bindings are 6x slower (since 6.12.x to 7.10.x) -------------------------------------+------------------------------------- Reporter: tommd | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonmar): There were regressions due to the new code generator, but we felt that overall the architecture benefits were worth the hit. I actually spent a lot of time getting the overheads down to an acceptable level. A common trick to apply is to spot a pattern in the code generator and do some specialised code generation. Maybe it's possible to apply that here? See also #7198. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12028#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler