[GHC] #12713: Bytes allocated statistic for T10858 differs between Windows and Linux

15 Oct 2016


      #12713: Bytes allocated statistic for T10858 differs between Windows and Linux
-------------------------------------+-------------------------------------
           Reporter:  bgamari        |             Owner:
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:
          Component:  Test Suite     |           Version:  8.0.1
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
-------------------------------------+-------------------------------------
 Strangely `T10858` seems to pass without any trouble on 64-bit Linux with
 its current expected "bytes allocated" statistic of 241MB. Strangely, this
 test allocates 16% less on 64-bit Windows,
 {{{
 bytes allocated value is too low:
 (If this is because you have improved GHC, please
 update the test so that GHC doesn't regress again)
     Expected    T10858(normal) bytes allocated: 241655120 +/-8%
     Lower bound T10858(normal) bytes allocated: 222322710
     Upper bound T10858(normal) bytes allocated: 260987530
     Actual      T10858(normal) bytes allocated: 203567896
     Deviation   T10858(normal) bytes allocated:     -15.8 %
 *** unexpected stat test failure for T10858(normal)
 }}}

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Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12713
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