[GHC] #13193: Integer (gmp) performance regression?

[GHC]

#13193: Integer (gmp) performance regression?
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        Reporter:  j.waldmann        |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.0.1
      Resolution:                    |             Keywords:  newcomer
Operating System:  Linux             |         Architecture:  x86_64
 Type of failure:  Runtime           |  (amd64)
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by j.waldmann):

 > test with perf build of HEAD

 {{{
 ghc-8.1.20170128  :  2.14 sec
 }}}

 so this is roughly the performance of 7.10, better than 8.0,
 but still not 7.8 or earlier.  I also updated the data at
 http://www.imn.htwk-leipzig.de/~waldmann/etc/mob/

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13193#comment:11>
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