[GHC] #8224: Excessive system time -- new IO manager problem?

[GHC]

#8224: Excessive system time -- new IO manager problem?
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        Reporter:  rrnewton          |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  high              |               Milestone:  7.12.1
       Component:  Runtime System    |                 Version:  7.7
      Resolution:                    |                Keywords:  IO
Operating System:  Linux             |  Manager, System Time
 Type of failure:  Runtime           |            Architecture:  x86_64
  performance bug                    |  (amd64)
      Blocked By:                    |               Test Case:
 Related Tickets:                    |                Blocking:
                                     |  Differential Revisions:
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Changes (by thoughtpolice):

 * milestone:  7.10.1 => 7.12.1


Comment:

 (Pushing back to 7.12 as this ticket requires more investigation for a
 fix.)

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8224#comment:20>
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