[GHC] #13690: Running profiling tests in the GHCi way is extremely slow

[GHC]

#13690: Running profiling tests in the GHCi way is extremely slow
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           Reporter:  dfeuer         |             Owner:  (none)
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:  8.4.1
          Component:  Compiler       |           Version:  8.2.1-rc2
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  Runtime
  Unknown/Multiple                   |  performance bug
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
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 Running, e.g., `profinline001` in the GHCi way takes somewhere around
 eleven seconds. This seems pretty extreme. I noticed this when writing
 T12962 in the as-yet-unmerged Phab:D3550, which takes about the same
 amount of time. These are very small and very simple bits of code that
 don't do much at all, so it seems the problem must lie elsewhere. I have
 no idea where, though.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13690>
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