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https://issues.apache.org/jira/browse/OAK-1465?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stefan Egli reopened OAK-1465:
------------------------------


reopening :)
this degradation is there also in 0.18-snapshot (double-checked..) - but with 
much better overall figured, and slightly less dramatic:
{code}
# CreateManyIndexedNodesTest       C     min     10%     50%     90%     max    
   N
Oak-Mongo                          1     104     129     156     234     512    
 117
Oak-Mongo                          1     107     130     163     224     277    
 119
Oak-Mongo                          1     118     132     166     254     694    
 108
Oak-Mongo                          1     118     146     178     247     961    
 101
Oak-Mongo                          1     122     146     178     244     743    
 106
Oak-Mongo                          1     125     147     185     242     402    
 105
Oak-Mongo                          1     146     157     183     256     363    
 101
Oak-Mongo                          1     140     160     192     249    1402    
  95
Oak-Mongo                          1     152     163     195     264     545    
  95
Oak-Mongo                          1     150     167     212    1563    4263    
  37
{code}

> performance degradation with growing index size on Oak-Mongo
> ------------------------------------------------------------
>
>                 Key: OAK-1465
>                 URL: https://issues.apache.org/jira/browse/OAK-1465
>             Project: Jackrabbit Oak
>          Issue Type: Bug
>          Components: mongomk
>    Affects Versions: 0.17.1
>            Reporter: Stefan Egli
>         Attachments: CreateManyIndexedNodesTest.java
>
>
> Tested with an oak-snapshot of Monday Feb 24, 10AM EST.
> Noticed that when the amount of nodes indexed - eg wrt a particular property 
> - the adding of nodes becomes slower and slower.
> Will attach a oak-run benchmark to underline this. Basically the scenario 
> where this occurred was:
>  * have a number of "level 1" nodes (eg 100)
>  * under those "level 1" nodes, add a growing list of children, each with a 
> property that is indexed (ie that index is actually growing and is probably 
> causing the slowdown).



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