[GHC] #8703: Use guard pages rather than heap checks

[GHC]

#8703: Use guard pages rather than heap checks
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        Reporter:  schyler           |                Owner:  simonmar
            Type:  feature request   |               Status:  closed
        Priority:  normal            |            Milestone:
       Component:  Runtime System    |              Version:
      Resolution:  wontfix           |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by simonmar):

 For rationale on why GHC's heap is divided into blocks, see this paper:
 http://simonmar.github.io/bib/papers/parallel-gc.pdf

 Changing the structure of the heap is a MASSIVE change.  If you really
 think it's worthwhile, I suggest building a proof-of-concept prototype and
 obtain some measurements.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8703#comment:5>
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