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https://issues.apache.org/jira/browse/JCR-2726?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12902811#action_12902811
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Michael Dürig commented on JCR-2726:
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Here are some performance measurement from the GroupGetMembersTest added with
JCR-2727.
Collecting group membership eagerly (i.e. before revision 989102):
# GroupGetMembersTest avg std min max count
2.2-btree-usermanager-repository 43 11 38 196 1167
2.2-default-usermanager-repository 26 3 24 74 1900
Collecting group membership lazily (i.e. after revision 989102):
# GroupGetMembersTest avg std min max count
2.2-btree-usermanager-repository 19 2 16 49 2692
2.2-default-usermanager-repository 13 3 11 86 3801
> Make collecting group membership information lazy
> -------------------------------------------------
>
> Key: JCR-2726
> URL: https://issues.apache.org/jira/browse/JCR-2726
> Project: Jackrabbit Content Repository
> Issue Type: Improvement
> Components: jackrabbit-core, jackrabbit-jcr-commons
> Affects Versions: 2.2.0
> Reporter: Michael Dürig
> Assignee: Michael Dürig
> Fix For: 2.2.0
>
>
> JCR-2710 added a more scalable content model for storing group membership
> information. To further leverage the new model it would be preferable when
> group membership collecting where lazy. (i.e. Group#getDeclaredMembers() and
> Group#getMembers() should not construct the list of all members up front).
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