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Viewing changes to bzrlib/benchmarks/bench_osutils.py

  • Committer: John Arbash Meinel
  • Date: 2008-07-11 21:41:24 UTC
  • mto: This revision was merged to the branch mainline in revision 3543.
  • Revision ID: john@arbash-meinel.com-20080711214124-qi09irlj7pd5cuzg
Shortcut the case when one revision is in the ancestry of the other.

At the cost of a heads() check, when one parent supersedes, we don't have to extract
the text for the other. Changes merge time from 3m37s => 3m21s. Using a
CachingParentsProvider would drop the time down to 3m11s.

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bzrlib/benchmarks/bench_osutils.py
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        self.make_kernel_like_tree(link_working=True)
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        # on roberts machine: this originally took:  157ms/4177ms
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        # plain os.walk takes 213ms on this tree
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        # with the pyrex readdir module:              77ms/5423ms
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        def dowalk():
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            for dirblock in osutils.walkdirs('.'):
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                if dirblock[0][1] == '.bzr':