Re: #1675: Maximum heap size is limited on 64-bit machines

[Chicken Trac]

#1675: Maximum heap size is limited on 64-bit machines
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            Reporter:  felix winkelmann  |      Owner:  (none)
                Type:  defect            |     Status:  new
            Priority:  minor             |  Milestone:  5.3
           Component:  core libraries    |    Version:  5.1.0
          Resolution:                    |   Keywords:
Estimated difficulty:  trivial           |
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Comment (by felix winkelmann):

 Replying to [comment:6 sjamaan]:
 > What's the original purpose of the maximal heap size? It being 2GB on
 32-bit systems seems to be half the maximum addressable size (which makes
 sense if you consider that the maximum heap would be double that, but also
 a little pointless because at that point you'll have eaten up all memory
 anyway - that memory won't typically all be available. Except there's
 swap...)

 This is only a theoretical limit, to be used to mask out significant bits
 from the header value, not a commitment on the heap size we want to
 support. 2GB seemed insane a while ago. And we all know that 640KB is more
 than enough.

-- 
Ticket URL: <https://bugs.call-cc.org/ticket/1675#comment:7>
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