[GHC] #7751: Incremental heap census

[GHC]

#7751: Incremental heap census
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Reporter:  ezyang            |          Owner:  ezyang          
    Type:  feature request   |         Status:  new             
Priority:  normal            |      Component:  Profiling       
 Version:  7.7               |       Keywords:                  
      Os:  Unknown/Multiple  |   Architecture:  Unknown/Multiple
 Failure:  None/Unknown      |      Blockedby:                  
Blocking:                    |        Related:                  
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Comment(by ezyang):

 OK, so I have an implementation which adds a new field to block
 descriptors, "slopend", which records the division between sloppy / packed
 in the block. The trouble is, we don't actually have any space left in
 bdescr on 32-bit platforms...

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7751#comment:3>
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