[GHC] #4965: 60% performance regression in continuation-heavy code between 6.12 and 7

[GHC]

#4965: 60% performance regression in continuation-heavy code between 6.12 and 7
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    Reporter:  bos               |        Owner:                         
        Type:  bug               |       Status:  new                    
    Priority:  high              |    Milestone:  7.2.1                  
   Component:  Compiler          |      Version:  7.0.1                  
    Keywords:                    |     Testcase:                         
   Blockedby:                    |   Difficulty:                         
          Os:  Unknown/Multiple  |     Blocking:                         
Architecture:  Unknown/Multiple  |      Failure:  Runtime performance bug
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Comment(by bos):

 Confirmed that we're down to a 22% (or so) regression in 7.0.3. I'm glad
 to see the performance has further improved with HEAD - thanks. When I
 have time, I'll build HEAD and see what I can see.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4965#comment:10>
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