#7602: Threaded RTS performing badly on recent OS X (10.8?) -------------------------------+-------------------------------------------- Reporter: simonmar | Owner: thoughtpolice Type: bug | Status: new Priority: high | Milestone: 7.8.1 Component: Runtime System | Version: 7.7 Keywords: | Os: MacOS X Architecture: x86_64 (amd64) | Failure: None/Unknown Difficulty: Unknown | Testcase: Blockedby: 7678 | Blocking: Related: | -------------------------------+-------------------------------------------- Changes (by simonmar): * priority: normal => high * milestone: _|_ => 7.8.1 Comment: I'd be really happy if someone took ownership of this problem and drove it to a solution. @thoughtpolice? As I understand it, currently the situation is that you have to install gcc. We can probably make it so that you don't have to install gcc to ''use'' GHC, but still need gcc to ''build'' GHC, because we don't have access to fast TLS support on OS X (or alternatively you can build GHC with clang, but the GC will be slow.) It seems certain privileged projects do get fast TLS support (WebKit), but it's not officially available for general use. -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/7602#comment:23 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler