[GHC] #15049: NUMA not detected on Win10 with AMD Ryzen Threadripper

[GHC]

#15049: NUMA not detected on Win10 with AMD Ryzen Threadripper
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        Reporter:  kanetw          |                Owner:  kanetw
            Type:  bug             |               Status:  patch
        Priority:  normal          |            Milestone:  8.6.1
       Component:  Runtime System  |              Version:  8.4.1
      Resolution:                  |             Keywords:
Operating System:  Windows         |         Architecture:  x86_64 (amd64)
 Type of failure:  None/Unknown    |            Test Case:
      Blocked By:                  |             Blocking:
 Related Tickets:                  |  Differential Rev(s):  Phab:D4607
       Wiki Page:                  |
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Comment (by Ben Gamari <ben@…>):

 In [changeset:"75361b119c609f0ab98f3d12a15690aae4ce42a1/ghc" 75361b1/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="75361b119c609f0ab98f3d12a15690aae4ce42a1"
 Fix NUMA support on Windows (#15049)

 * osNumaNodes now returns the right number of nodes
 * thread affinity is now correctly set

 TODO: no noticeable performance improvement.
 does windows already distribute threads in a NUMA-aware fashion?

 Test Plan:
 * validate
 * local tests on a NUMA machine

 Reviewers: bgamari, erikd, simonmar

 Reviewed By: bgamari, simonmar

 Subscribers: thomie, carter

 Differential Revision: https://phabricator.haskell.org/D4607
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15049#comment:7>
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