[GHC] #13059: High memory usage during compilation

[GHC]

#13059: High memory usage during compilation
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        Reporter:  domenkozar        |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.0.2-rc2
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:  x86_64
 Type of failure:  Compile-time      |  (amd64)
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by RyanGlScott):

 It's difficult to investigate this issue at the moment, given that it
 relies on a package with a high number of dependencies and a module with a
 lot of code. It would be tremendously helpful if you could isolate a
 smaller test case (preferably with one module with no dependencies other
 than what ships with GHC) that exhibits the issue.

 As a start, you can try commenting out code from `Data.Store.Internal` and
 see if there's a definition or group of definitions that triggers the
 memory spike.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13059#comment:1>
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