[GHC] #814: RTS always grabs 256Mb on startup

#814: RTS always grabs 256Mb on startup
-------------------------------+--------------------------------------------
    Reporter:  simonmar        |        Owner:                  
        Type:  bug             |       Status:  new             
    Priority:  normal          |    Milestone:  6.6             
   Component:  Runtime System  |      Version:  6.4.1           
    Severity:  normal          |     Keywords:                  
          Os:  Windows         |   Difficulty:  Moderate (1 day)
Architecture:  Unknown         |  
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Two bugs really:

  * on Windows, the RTS always reserves 256Mb of memory on startup.
  * to use more than 256Mb, you have to use +RTS -M

 I think this is a hangover from the days before HEAP_ALLOCED was
 implemented with an array lookup; I believe we could now implement MBlock
 on Windows without these drawbacks.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/814>
GHC <http://www.haskell.org/ghc/>
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