[GHC] #7121: garbage collection invokation, query functions for realtime

[GHC]

#7121: garbage collection invokation, query functions for realtime
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 Reporter:  centaurian_slug   |          Owner:                  
     Type:  feature request   |         Status:  new             
 Priority:  normal            |      Component:  Compiler        
  Version:  7.4.2             |       Keywords:                  
       Os:  Unknown/Multiple  |   Architecture:  Unknown/Multiple
  Failure:  None/Unknown      |       Testcase:                  
Blockedby:                    |       Blocking:                  
  Related:                    |  
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Comment(by centaurian_slug):

 some say manual GC invokation is never needed , whilst others say an
 application can benefit from running a full cycle after a major change
 ('new document..')
 the point about realtime is to be able to have information and hints
 relating to the passage of time in the program structure. in an animation
 loop one has a clear cycle where behaviour must be consistent.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7121#comment:1>
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