[GHC] #1889: Regression in concurrency performance from ghc 6.6 to 6.8

[GHC]

#1889: Regression in concurrency performance from ghc 6.6 to 6.8
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 Reporter:  dons                               |          Owner:  simonmar
     Type:  run-time performance bug           |         Status:  new     
 Priority:  high                               |      Milestone:  6.8.3   
Component:  Runtime System                     |        Version:  6.8.1   
 Severity:  normal                             |     Resolution:          
 Keywords:  threads, concurrency, performance  |     Difficulty:  Unknown 
 Testcase:                                     |   Architecture:  Multiple
       Os:  Multiple                           |  
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Changes (by simonmar):

  * type:  bug => run-time performance bug

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1889#comment:7>
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