#9923: Offer copy-on-GC sliced arrays -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: simonmar Type: feature request | Status: new Priority: normal | Milestone: Component: Runtime System | Version: 7.11 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: None/Unknown | Unknown/Multiple Blocked By: | Test Case: Related Tickets: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by simonmar): The problem occurs if you have both a slice and a reference to the original array. The GC can't know until the end of GC whether it should just copy the slice or keep the whole array, and neither can it copy both the slice and the array (GC would require more memory than the original heap). -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9923#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler