Wayne Meissner created JRUBY-6584:
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             Summary: File.mtime() is slower than it should be
                 Key: JRUBY-6584
                 URL: https://jira.codehaus.org/browse/JRUBY-6584
             Project: JRuby
          Issue Type: Improvement
            Reporter: Wayne Meissner
            Assignee: Thomas E Enebo
            Priority: Minor


This is a benchmark result for File.mtime on my system:
  1.268000   0.000000   1.268000 (  1.268000)

And this is File.ctime:
  0.716000   0.000000   0.716000 (  0.716000)

There's no reason mtime should be slower than ctime, since they can both be 
discerned from the output of File.stat.  JRuby currently doesn't use stat() for 
File.mtime, but an alternate path (with a comment about jna being too slow ...)




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