#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): OK, I re-did the measurement of acme-http (pong) scaling with the same setup as I used in the Mio paper (same server, same acme parameters (-A32m), same test machine and software (weighttp), etc). I've attached the graph. On my server the patch does make a small, but noticeable improvement of about 5-10% improvement for values of -N parameter from 1-4. At higher cores I can't see any difference. @bos: does my measurement seem reasonable to you? Are you seeing the same thing? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8158#comment:19 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler