[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:  high              |            Milestone:  8.2.1
       Component:  Runtime System    |              Version:
      Resolution:                    |             Keywords:  thread-local
                                     |  state, TLS clang
Operating System:  MacOS X           |         Architecture:  x86_64
 Type of failure:  Runtime           |  (amd64)
  performance bug                    |            Test Case:
      Blocked By:  7678              |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by George):

 Any update on this? In the original bug entry Simon Marlow suggests: A
 workaround is to install a real gcc (using homebrew?) and use that to
 compile GHC. Whoever builds the GHC distributions for OS X should probably
 do it that way, so everyone benefits. Are we doing that?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7602#comment:53>
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