[GHC] #10228: Increased memory usage with GHC 7.10.1

[GHC]

#10228: Increased memory usage with GHC 7.10.1
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        Reporter:  jstolarek         |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  normal            |               Milestone:
       Component:  Compiler          |                 Version:  7.10.1
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  performance bug                    |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:
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Comment (by rwbarton):

 The memory usage is up only 10% over 7.8, so this doesn't seem to be a
 significant regression.

 {{{
 7.8

  327,943,402,392 bytes allocated in the heap
   18,580,963,960 bytes copied during GC
      870,373,552 bytes maximum residency (24 sample(s))
       13,857,232 bytes maximum slop
             2446 MB total memory in use (0 MB lost due to fragmentation)

 7.10

  506,171,221,880 bytes allocated in the heap
   34,277,256,496 bytes copied during GC
      945,447,464 bytes maximum residency (35 sample(s))
       18,326,864 bytes maximum slop
             2681 MB total memory in use (0 MB lost due to fragmentation)
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10228#comment:6>
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