[GHC] #7606: Stride scheduling for Haskell threads with priorities

[GHC]

#7606: Stride scheduling for Haskell threads with priorities
---------------------------------+------------------------------------------
    Reporter:  ezyang            |       Owner:  ezyang          
        Type:  feature request   |      Status:  new             
    Priority:  normal            |   Milestone:  7.8.1           
   Component:  Runtime System    |     Version:  7.7             
    Keywords:                    |          Os:  Unknown/Multiple
Architecture:  Unknown/Multiple  |     Failure:  None/Unknown    
  Difficulty:  Unknown           |    Testcase:                  
   Blockedby:                    |    Blocking:                  
     Related:                    |  
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Comment(by ezyang):

 Aaand the latest numbers! It looks like the new IO manager does a lot
 better!

 GHC 7.7.20130221
 {{{
       0%      50%      90%      99%    99.9%   99.99%
 0.000009 0.000019 0.000059 0.000103 0.000130 0.000926
 }}}

 GHC 7.7.20130221 -threaded
 {{{
       0%      50%      90%      99%    99.9%   99.99%
 0.000026 0.000046 0.000090 0.000167 0.000220 0.001286
 }}}

 GHC 7.7.20130221 -threaded -N2
 {{{
       0%      50%      90%      99%    99.9%   99.99%
 0.000026 0.000055 0.000101 0.000179 0.000253 0.000927
 }}}

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7606#comment:34>
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