[GHC] #7662: Improve GC of mutable objects

[GHC]

#7662: Improve GC of mutable objects
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        Reporter:  ezyang            |                   Owner:
            Type:  feature request   |                  Status:  new
        Priority:  normal            |               Milestone:  ⊥
       Component:  Runtime System    |                 Version:  7.7
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  None/Unknown      |  Unknown/Multiple
      Blocked By:                    |               Test Case:
 Related Tickets:                    |                Blocking:
                                     |  Differential Revisions:
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Changes (by lelf):

 * cc: lelf (added)


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7662#comment:8>
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