#9476: Implement late lambda-lifting -------------------------------------+------------------------------------- Reporter: simonpj | Owner: sgraf Type: feature request | Status: closed Priority: normal | Milestone: 8.8.1 Component: Compiler | Version: 7.8.2 Resolution: fixed | Keywords: LateLamLift Operating System: Unknown/Multiple | Architecture: Type of failure: Runtime | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: #8763 #13286 | Differential Rev(s): Phab:D5224 Wiki Page: LateLamLift | -------------------------------------+------------------------------------- Comment (by simonpj): I'm sorry I'm so slow, but I still don't understand the details of comment:68. But no matter! * I think we need a way to get accurate residency profiles, which in turn mean doing frequent, major garbage collections. Then we can present meaningful results, rather than fumble around in the dark. * To do this, either we need to add a RTS flag or... doesn't it happen anyway when we have a very small nursery? Each time the nursery runs out, we GC, and with -G1 that's a major GC. What am I missing? Then I believe you are saying "Ignoring closure growth has no effect on residency". Is that right? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9476#comment:70 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler