[GHC] #10739: Resuscitate the humble ticky-ticky profiler

[GHC]

#10739: Resuscitate the humble ticky-ticky profiler
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        Reporter:  bgamari           |                   Owner:
            Type:  task              |                  Status:  new
        Priority:  normal            |               Milestone:
       Component:  Compiler          |                 Version:  7.10.2
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:
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Comment (by simonpj):

 Ticky-ticky is tremendously useful when debugging performance, because it
 gives repeatable counts, and it guarantees not to affect optimisation.

 Bringing it back up to snuff would be a Very Good Thing.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10739#comment:3>
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