[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):

 Hmm, it looks like the GHC 7.7.20130122 numbers are nonsense (I used what
 I thought was a perf build, but it looks like it actually was just a
 validate build, so libraries/rts may not have been as optimized as they
 could be. Hmm, I guess I should go re-run the nofib numbers too, since
 some of those might be suspicious.) The 7.4.2 numbers, being distro built,
 should still be valid.

 Oh, and here are the C numbers, on the same machine. These should roughly
 correspond directly to the domain socket overhead.

 {{{
       0%      50%      90%      99%    99.9%   99.99%
 0.000006 0.000014 0.000017 0.000028 0.000062 0.000259
 }}}

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7606#comment:36>
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