[GHC] #5774: main = forever (putStrLn =<< getLine) continuously saturates a CPU when compiled

[GHC]

#5774: main = forever (putStrLn =<< getLine)   continuously saturates a CPU when
compiled
--------------------------------------+-------------------------------------
  Reporter:  lpsmith                  |          Owner:                
      Type:  bug                      |         Status:  closed        
  Priority:  normal                   |      Milestone:                
 Component:  Compiler                 |        Version:  7.4.1-rc1     
Resolution:  duplicate                |       Keywords:                
        Os:  Linux                    |   Architecture:  x86_64 (amd64)
   Failure:  Runtime performance bug  |     Difficulty:  Unknown       
  Testcase:                           |      Blockedby:                
  Blocking:                           |        Related:                
--------------------------------------+-------------------------------------

Comment(by simonpj):

 Ian, are you sure it's a dup? The symptoms look very different.  Have you
 checked that it's ok in 7.4?

 Simon

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5774#comment:2>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler