[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:                    |  
---------------------------------+------------------------------------------

Comment(by ezyang):

 Well, bumping the blocker does seem to help a little bit. Here's what
 happens when I remove the bump:

 {{{
 --------------------------------------------------------------------------------
         Program           Size    Allocs   Runtime   Elapsed  TotalMem
 --------------------------------------------------------------------------------
     callback001          -0.0%     +0.0%     +5.6%     +5.0%     +0.0%
     callback002          -0.0%     +0.0%     +0.3%     +0.9%     +0.0%
            chan          -0.0%     +0.0%     +1.4%     +1.3%     +0.0%
           sieve          -0.0%     +0.0%     +4.1%     +5.1%     +4.2%
      threads001          -0.0%     +0.0%     -1.8%     -1.3%     +0.0%
      threads003          -0.0%     -0.0%     +0.4%     +0.7%     +0.0%
      threads006          -0.0%     +0.0%     +0.0%     +0.6%     +0.0%
      threads007          -0.0%     +0.0%     -1.3%     -0.7%     +0.0%
 --------------------------------------------------------------------------------
             Min          -0.0%     -0.0%     -1.8%     -1.3%     +0.0%
             Max          -0.0%     +0.0%     +5.6%     +5.1%     +4.2%
  Geometric Mean          -0.0%     -0.0%     +1.0%     +1.4%     +0.5%
 }}}

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7606#comment:39>
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