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https://issues.apache.org/jira/browse/HIVE-8158?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14138976#comment-14138976
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Hive QA commented on HIVE-8158:
-------------------------------
{color:green}Overall{color}: +1 all checks pass
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12669389/HIVE-8158.1.patch
{color:green}SUCCESS:{color} +1 6279 tests passed
Test results:
http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/859/testReport
Console output:
http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/859/console
Test logs:
http://ec2-174-129-184-35.compute-1.amazonaws.com/logs/PreCommit-HIVE-TRUNK-Build-859/
Messages:
{noformat}
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12669389
> Optimize writeValue/setValue in VectorExpressionWriterFactory (in
> VectorReduceSinkOperator codepath)
> ----------------------------------------------------------------------------------------------------
>
> Key: HIVE-8158
> URL: https://issues.apache.org/jira/browse/HIVE-8158
> Project: Hive
> Issue Type: Bug
> Components: Vectorization
> Affects Versions: 0.14.0
> Reporter: Rajesh Balamohan
> Assignee: Rajesh Balamohan
> Labels: performance
> Attachments: HIVE-8158.1.patch, profiler_output.png
>
>
> VectorReduceSinkOperator --> ProcessOp --> makeValueWriatable -->
> VectorExpressionWriterFactory --> writeValue(byte[], int, int) /setValue.
> It appears that this goes through an additional layer of Text.encode/decode
> causing CPU pressure (profiler output attached).
> SettableStringObjectInspector / WritableStringObjectInspector has "set(Object
> o, Text value)" method. It would be beneficial to use set(Object, Text)
> directly to save CPU cycles.
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