[GHC] #8279: bad alignment in code gen yields substantial perf issue

[GHC]

#8279: bad alignment in code gen  yields substantial perf issue
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        Reporter:  carter                   |            Owner:
            Type:  bug                      |           Status:  new
        Priority:  highest                  |        Milestone:
       Component:  Compiler                 |          Version:  7.7
      Resolution:                           |         Keywords:
Operating System:  Unknown/Multiple         |     Architecture:
 Type of failure:  Runtime performance bug  |  Unknown/Multiple
       Test Case:                           |       Difficulty:  Unknown
        Blocking:                           |       Blocked By:
                                            |  Related Tickets:
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Comment (by carter):

 @rwbarton, good question!

 I think we'll just have to figure out some more systematic experiments,
 and try to get good measurements on a variety of recent cpu micro
 architectures, to understand this better. Hopefully something we can
 explore once 7.9 dev gets afoot!

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8279#comment:5>
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