#8158: Replace IO manager's IntMap with a mutable hash table -------------------------------+------------------------------------------- Reporter: bos | Owner: AndreasVoellmy Type: feature | Status: patch request | Milestone: 7.8.1 Priority: high | Version: 7.7 Component: | Keywords: libraries/base | Architecture: Unknown/Multiple Resolution: | Difficulty: Easy (less than 1 hour) Operating System: | Blocked By: Unknown/Multiple | Related Tickets: Type of failure: Other | Test Case: | Blocking: | -------------------------------+------------------------------------------- Comment (by AndreasVoellmy): In GHC.Event.IntTable.grow, why is a new bucket created, with Arr.write called for each item in the bucket? Couldn't you copy the bucket with a single write, copying the bucket in the old array to the new array? I see that you want to know the number of items in the bucket, but couldn't you count this but avoid the many writes? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8158#comment:16 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler