[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):

 It appears to be a little more complicated than this: due to the fact that
 GHC will reuse todo blocks over minor collections, the first portion of a
 block will have slop, and the remainder of it will not.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7751#comment:2>
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