But you have to be careful: objects that are larger than a block need contiguous blocks, so unless you are only going to enable this for large objects that still fit in a single block, you'll have to maintain multiple
#8732: Global big object heap allocator lock causes contention --------------------------------------------+------------------------------ Reporter: tibbe | Owner: simonmar Type: bug | Status: new Priority: normal | Milestone: 7.10.1 Component: Runtime System | Version: 7.6.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Runtime performance bug | Unknown/Multiple Test Case: | Difficulty: Unknown Blocking: | Blocked By: | Related Tickets: --------------------------------------------+------------------------------ Comment (by tibbe): lists with the sizes you want. I think malloc already does that, so we could copy whatever they do perhaps. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8732#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler