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

GHC ghc-devs at haskell.org
Sun Mar 25 22:46:18 UTC 2018


#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):
       Wiki Page:                    |
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Comment (by sjakobi):

 Replying to [comment:15 varosi]:
 > How can I experiment with non-optimized version as I doesn't have
 reference for comparison? I could try to build some optimized version.

 Building your own binary should be pretty straightforward. In order to
 investigate the effects of my patch you don't really need a different
 build anyway. You can simply find out what size your L3 cache has and pass
 that size to the `-A` RTS flag.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13362#comment:16>
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