[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:  normal            |    Milestone:                         
   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 simonmar):

 You said you're using the 7.0 branch, which has some known performance
 regressions (see #4951).  I've pushed some patches today that improve
 things, so if you could try again with the latest branch and let us know
 the results that would be helpful.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4965#comment:2>
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