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  • Committer: John Arbash Meinel
  • Date: 2008-12-10 18:50:59 UTC
  • mto: This revision was merged to the branch mainline in revision 3912.
  • Revision ID: john@arbash-meinel.com-20081210185059-hfucbbmumvmes1ql
Add detailed timings on the last 100 mysql revisions.

Revert to the 'safe' copy-everything code.

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bzrlib/xml8.py
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        file_id = elt_get('file_id')
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        revision = elt_get('revision')
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        # Check and see if we have already unpacked this exact entry
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        # Some timings for "repo.revision_trees(last_100_bzr_revs)"
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        #   unmodified  4.1s
 
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        # Some timings for "repo.revision_trees(last_100_revs)"
 
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        #               bzr     mysql
 
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        #   unmodified  4.1s    40.8s
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        #   using lru   3.5s
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        #   using fifo  2.83s
 
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        #   using fifo  2.83s   29.1s
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        #   lru._cache  2.8s
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        #   dict        2.75s
 
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        #   dict        2.75s   26.8s
 
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        #   inv.add     2.5s    26.0s
 
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        #   no_copy     2.00s   20.5s
 
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        #   no_c,dict   1.95s   18.0s
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        # Note that a cache of 10k nodes is more than sufficient to hold all of
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        # the inventory for the last 100 revs.
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        #   With inventory.add() optimizations, and not copying file entries,
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            pass
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        else:
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            # Only copying directory entries drops us 2.85s => 2.35s
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            if cached_ie.kind == 'directory':
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                return cached_ie.copy()
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            return cached_ie
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            # return cached_ie.copy()
 
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            # if cached_ie.kind == 'directory':
 
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            #     return cached_ie.copy()
 
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            # return cached_ie
 
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            return cached_ie.copy()
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        kind = elt.tag
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        if not InventoryEntry.versionable_kind(kind):