[GHC] #10740: Ensure that ticky, profiler, and GC allocation numbers agree

[GHC]

#10740: Ensure that ticky, profiler, and GC allocation numbers agree
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              Reporter:  bgamari     |             Owner:  bgamari
                  Type:  task        |            Status:  new
              Priority:  normal      |         Milestone:
             Component:  Compiler    |           Version:  7.10.2
              Keywords:              |  Operating System:  Unknown/Multiple
          Architecture:              |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
             Test Case:              |        Blocked By:
              Blocking:              |   Related Tickets:
Differential Revisions:              |
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 Currently we have several subsystems independently tracking allocations.
 It is very likely there are discrepancies between them. Ensuring that they
 agree would be a great way to test each of them (especially ticky, which
 is almost certainly bitrotted, see #10739).

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10740>
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