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  • Committer: Robert J. Tanner
  • Date: 2009-04-08 03:34:31 UTC
  • mfrom: (4266 +trunk)
  • mto: This revision was merged to the branch mainline in revision 4267.
  • Revision ID: tanner@real-time.com-20090408033431-draj0u7nd9bbby53
Merge 1.14rc1 back bzr.dev

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bzrlib/dirstate.py
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the file on disk, and then immediately discard, the overhead of object creation
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becomes a significant cost.
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Figures: Creating a tuple from from 3 elements was profiled at 0.0625
 
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Figures: Creating a tuple from 3 elements was profiled at 0.0625
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microseconds, whereas creating a object which is subclassed from tuple was
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0.500 microseconds, and creating an object with 3 elements and slots was 3
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microseconds long. 0.1 milliseconds is 100 microseconds, and ideally we'll get
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    @staticmethod
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    def on_file(path, sha1_provider=None):
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        """Construct a DirState on the file at path path.
 
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        """Construct a DirState on the file at path "path".
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        :param path: The path at which the dirstate file on disk should live.
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        :param sha1_provider: an object meeting the SHA1Provider interface.