[GHC] #2747: Excessive Memory Usage: space leak with foldl' on Integer

[GHC]

#2747: Excessive Memory Usage: space leak with foldl' on Integer
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 Reporter:  guest                     |          Owner:  simonmar        
     Type:  run-time performance bug  |         Status:  new             
 Priority:  normal                    |      Milestone:  6.10.2          
Component:  Runtime System            |        Version:  6.10.1          
 Severity:  blocker                   |     Resolution:                  
 Keywords:                            |     Difficulty:  Unknown         
 Testcase:                            |   Architecture:  Unknown/Multiple
       Os:  Unknown/Multiple          |  
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Changes (by simonmar):

  * difficulty:  => Unknown
  * milestone:  => 6.10.2

Comment:

 Testing the fix right now.  We discovered the cause: basically the RTS
 isn't triggering a GC often enough, because some accounting got
 accidentally removed during some other refactoring.  Large objects aren't
 being counted when deciding whether to GC, so a program that allocates all
 or mostly large objects can use a large amount of memory between GCs.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2747#comment:6>
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