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https://issues.apache.org/jira/browse/CASSANDRA-21351?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dmitry Konstantinov updated CASSANDRA-21351:
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Change Category: Performance
Complexity: Low Hanging Fruit
Fix Version/s: 6.x
7.x
Assignee: Dmitry Konstantinov
Status: Open (was: Triage Needed)
> Reduce memory allocations in SelectStatement.getQuery
> -----------------------------------------------------
>
> Key: CASSANDRA-21351
> URL: https://issues.apache.org/jira/browse/CASSANDRA-21351
> Project: Apache Cassandra
> Issue Type: Improvement
> Components: Consistency/Coordination
> Reporter: Dmitry Konstantinov
> Assignee: Dmitry Konstantinov
> Priority: Normal
> Fix For: 6.x, 7.x
>
>
> Minor reduction of memory allocations in miscellaneous places of
> SelectStatement.getQuery:
> * SinglePartitionReadCommand.Group#create - typical single partition select,
> use singletonList instead of ArrayList + Object[], 0.11%
> * SelectStatement#getSliceCommands - remove unnessesary cloning of partition
> key, 0.43%
> * SelectStatement#getSliceCommands - typical single partition select, use
> singletonList instead of ArrayList + Object[], 0.11%
> * SinglePartitionReadQuery.Group#maybeValidateIndex, iterators for
> restrictioSet, 0.31%
> Total: 0.96%
> to be continued
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