[JBoss JIRA] (TEIID-2429) Large sort performance
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[
https://issues.jboss.org/browse/TEIID-2429?page=com.atlassian.jira.plugin...
]
Steven Hawkins commented on TEIID-2429:
---------------------------------------
Another issue with the default logic is that blocked exceptions with dup remove may result
in fairly large sets of the workingTuple collection staying in memory, but not being
accounted for by a memory reservation.
Large sort performance
----------------------
Key: TEIID-2429
URL: https://issues.jboss.org/browse/TEIID-2429
Project: Teiid
Issue Type: Quality Risk
Components: Query Engine
Affects Versions: 7.4
Reporter: Steven Hawkins
Assignee: Steven Hawkins
Fix For: 8.4
Large sorts (high data volume over above several hundred thousand rows) experience a
disproportionate performance degradation as the data set grows larger.
This is due to the SortUtility default collection strategy that will create intermediate
sort buffers too proactively.
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Steven Hawkins (JIRA)