[GHC] #8144: Interface hashes include time stamp of dependent files (UsageFile mtime)

[GHC]

#8144: Interface hashes include time stamp of dependent files (UsageFile mtime)
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        Reporter:  nh2                           |            Owner:
            Type:  bug                           |           Status:  new
        Priority:  normal                        |        Milestone:
       Component:  Compiler                      |          Version:  7.6.3
      Resolution:                                |         Keywords:
Operating System:  Unknown/Multiple              |     Architecture:
 Type of failure:  Compile-time performance bug  |  Unknown/Multiple
       Test Case:                                |       Difficulty:
        Blocking:                                |  Unknown
                                                 |       Blocked By:
                                                 |  Related Tickets:
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Comment (by jstolarek):

 Replying to [comment:6 refold]:
 > Looks like #7473 is related.
 According to discussion in #7473 `getModificationTime` was improved on
 Linux to return time with resolution better than 1 second. nh2, what
 platform are you on?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8144#comment:8>
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