[GHC] #8623: Strange slowness when using async library with FFI callbacks

[GHC]

#8623: Strange slowness when using async library with FFI callbacks
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              Reporter:              |            Owner:  simonmar
  JohnWiegley                        |           Status:  new
                  Type:  bug         |        Milestone:  7.10.1
              Priority:  normal      |          Version:  7.6.3
             Component:  Runtime     |         Keywords:
  System                             |     Architecture:  Unknown/Multiple
            Resolution:              |       Difficulty:  Unknown
      Operating System:              |       Blocked By:
  Unknown/Multiple                   |  Related Tickets:
       Type of failure:  Runtime     |
  performance bug                    |
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
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Changes (by thomie):

 * os:  MacOS X => Unknown/Multiple


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8623#comment:9>
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