#9052: Support a "stable heap" which doesn't get garbage collected ----------------------------+---------------------------------------------- Reporter: ezyang | Owner: simonmar Type: feature | Status: new request | Milestone: Priority: normal | Version: 7.9 Component: Runtime | Keywords: System | Architecture: Unknown/Multiple Resolution: | Difficulty: Moderate (less than a day) Operating System: | Blocked By: Unknown/Multiple | Related Tickets: Type of failure: | None/Unknown | Test Case: | Blocking: | ----------------------------+---------------------------------------------- Comment (by ezyang): A little musing about implementation: we could go about representing the stable generation in two ways. One is that the stable generation is an extra generation which is always present (e.g. we always allocate a field for it when initializing the storage manager), but the GC ignores it; the other is the stable generation is "just another generation" (i.e. to have g0, g1 and a stable gen, the user needs to pass -G3) but specially flagged to behave differently. I think the first option is more user-friendly, but the latter option makes for cleaner implementation, because we don't have to +1 the value of the 'generations' configuration flag. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9052#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler