[GHC] #7602: Threaded RTS performing badly on recent OS X (10.8?)

[GHC]

#7602: Threaded RTS performing badly on recent OS X (10.8?)
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    Reporter:  simonmar        |       Owner:  thoughtpolice
        Type:  bug             |      Status:  new          
    Priority:  normal          |   Milestone:  _|_          
   Component:  Runtime System  |     Version:  7.7          
    Keywords:                  |          Os:  MacOS X      
Architecture:  x86_64 (amd64)  |     Failure:  None/Unknown 
  Difficulty:  Unknown         |    Testcase:               
   Blockedby:  7678            |    Blocking:               
     Related:                  |  
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Comment(by chak):

 Concerning TLS, clang actually supports a choice of different ways of
 handling TLS since clang 3.2. See
 [http://llvm.org/releases/3.2/docs/ClangReleaseNotes.html] under heading
 "Support for tls_model attribute" (the compiler option is "-ftls-model").
 The various models are spec'ed in this document:
 [http://www.akkadia.org/drepper/tls.pdf]

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7602#comment:21>
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