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

[GHC]

#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>
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