#11666: Severe performance degradation in GHC 8.0.1 compared to GHC 7.10.x -------------------------------------+------------------------------------- Reporter: mrkkrp | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.1-rc2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonpj): Sounds bad. The more you can help us by digging into exactly what is taking longer, the easier it'll be to help. A 4.5x slowdown ought to be very easy to zero in on. Thanks! Simon -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11666#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler