#7923: Optimization for takeMVar/putMVar when MVar left empty ---------------------------------+------------------------------------------ Reporter: ezyang | Owner: ezyang Type: task | Status: patch Priority: normal | Milestone: Component: Runtime System | Version: 7.7 Keywords: | Os: Unknown/Multiple Architecture: Unknown/Multiple | Failure: Runtime performance bug Difficulty: Unknown | Testcase: Blockedby: | Blocking: Related: | ---------------------------------+------------------------------------------ Comment(by igloo): ezyang pointed out that it'll be on a mutable list, so it's not as simple as just marking it clean here. -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/7923#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler