[GHC] #13586: ghc --make seems to leak memory

[GHC]

#13586: ghc --make seems to leak memory
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        Reporter:  MikolajKonarski   |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.0.1
      Resolution:                    |             Keywords:
Operating System:  Linux             |         Architecture:  x86_64
 Type of failure:  Compile-time      |  (amd64)
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #13379 #13564     |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by ulysses4ever):

 > GHC certainly retains information about modules it has finished
 compiling in `--make` mode, by design--the information it wrote to the
 interface file

 Question: would it be reasonable to add a flag of how much memory is
 allowed for this kind of buffering? Upon reaching the limit, GHC could
 clear it up and resort to fetching `hi`-files on demand.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13586#comment:12>
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