Joel Richard created OAK-3154: --------------------------------- Summary: Improve SimpleNodeAggregator performance with a NodeState cache Key: OAK-3154 URL: https://issues.apache.org/jira/browse/OAK-3154 Project: Jackrabbit Oak Issue Type: Improvement Components: query Affects Versions: 1.3.3 Reporter: Joel Richard
I have profiled a query where 16% of the query fetching time is spent inside of SimpleNodeAggregator.isNodeType. In my case, a lot of nodes which are read have overlapping paths. Because the nodes seem to be iterated alphabetically, it would be possible to cache the previous NodeState chain in an array and reuse as much as possible if the previous and current path overlap. This would significantly reduce the query fetching time in cases where a lot of paths are similar. Since the NodeState cache array can be reused for the whole query execution, the possible overhead of it should be negligible. -- This message was sent by Atlassian JIRA (v6.3.4#6332)