[GHC] #13362: GHC first generation of GC to be as large as largest cache size by default

[GHC]

#13362: GHC first generation of GC to be as large as largest cache size by default
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        Reporter:  varosi            |                Owner:  sjakobi
            Type:  feature request   |               Status:  new
        Priority:  normal            |            Milestone:  8.6.1
       Component:  Runtime System    |              Version:  8.0.2
      Resolution:                    |             Keywords:  numa cache gc
                                     |  newcomers
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Runtime           |  Unknown/Multiple
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D4679
       Wiki Page:                    |
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Changes (by sjakobi):

 * differential:   => Phab:D4679


Comment:

 In order to move things forward, I have uploaded a patch.

 Regarding my questions from comment:11, I propose only looking at L3 and
 L2 caches for now.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13362#comment:18>
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