Re: [GHC] #8611: nofib’s cacheprof’s allocations nondeterminisitic

[GHC]

#8611: nofib’s cacheprof’s allocations nondeterminisitic
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        Reporter:  nomeata                |            Owner:
            Type:  bug                    |           Status:  new
        Priority:  normal                 |        Milestone:
       Component:  NoFib benchmark suite  |          Version:  7.6.3
      Resolution:                         |         Keywords:
Operating System:  Unknown/Multiple       |     Architecture:
 Type of failure:  None/Unknown           |  Unknown/Multiple
       Test Case:                         |       Difficulty:  Unknown
        Blocking:                         |       Blocked By:
                                          |  Related Tickets:
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Comment (by nomeata):

 I could not find the cause immediately, so I’ll report my partial findings
 here.

  * It is not the IO part. Inlining the input as one big string, and
 skipping the output, does not make the symptom disappear.
  * Ticky-ticky profiling yields identical results for the cacheprof
 modules, the only difference is in the global counters (`HEAP_CHK_ctr` and
 `STK_CHK_ctr`) to be precise.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8611#comment:1>
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