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Posted to oak-issues@jackrabbit.apache.org by "Michael Dürig (JIRA)" <ji...@apache.org> on 2014/02/11 17:25:21 UTC

[jira] [Created] (OAK-1414) Copying a large subtrees does not scale linearly in the number of copied nodes on document node stores

Michael Dürig created OAK-1414:
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             Summary: Copying a large subtrees does not scale linearly in the number of copied nodes on document node stores
                 Key: OAK-1414
                 URL: https://issues.apache.org/jira/browse/OAK-1414
             Project: Jackrabbit Oak
          Issue Type: Bug
          Components: mongomk
            Reporter: Michael Dürig


{{org.apache.jackrabbit.oak.jcr.LargeOperationIT#largeCopy}} does not scale linearly with the number of copied nodes in the case of document:

{code}
quotients: 1.1803765754650501, 0.33168970806199227, 0.8160753821577706, 1.4619226777374157, 1.9342440796702938
{code}

Note how copying trees with 32768 and with 131072 nodes each took super linearly longer than copying the respective previous amount of nodes. See also OAK-1413 on how to read these numbers. 



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