#8504: Provide minor GC residency estimates -------------------------------+------------------------------------------- Reporter: ezyang | Owner: simonmar Type: feature | Status: new request | Milestone: Priority: lowest | Version: 7.7 Component: Runtime | Keywords: easy System | Architecture: Unknown/Multiple Resolution: | Difficulty: Easy (less than 1 hour) Operating System: | Blocked By: Unknown/Multiple | Related Tickets: Type of failure: | None/Unknown | Test Case: | Blocking: | -------------------------------+------------------------------------------- Comment (by simonmar): I'm not against having a higher resolution but lower accuracy residency sample, but it should be something that has to be requested explicitly (I presume your patch above isn't a serious proposal, but just to be clear I don't think it would be a good idea to apply it!). The residency you'll see by using the figures from minor collections is the saw-tooth generational GC pattern. That's fine if you understand why, but we don't want to give users the mistaken impression that their programs have a saw-tooth heap profile. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8504#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler