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https://issues.apache.org/jira/browse/SPARK-29169?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Maxim Gekk updated SPARK-29169:
-------------------------------
Description: The updated benchmark results show performance regression
*(almost 2 times slower)* in ORC Vectorized on scanning Single TINYINT Column,
see
https://github.com/apache/spark/pull/25828/files#diff-e37c3433287c7371ff9c2404db821095R13
. Need to find out the root cause of this and fix it. (was: The updated
benchmark results show performance regression in ORC Vectorized on scanning
Single TINYINT Column, see
https://github.com/apache/spark/pull/25828/files#diff-e37c3433287c7371ff9c2404db821095R13
. Need to find out the root cause of this and fix it.)
> Performance regression in ORC Vectorized on TINYINT scans
> ---------------------------------------------------------
>
> Key: SPARK-29169
> URL: https://issues.apache.org/jira/browse/SPARK-29169
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Maxim Gekk
> Priority: Major
>
> The updated benchmark results show performance regression *(almost 2 times
> slower)* in ORC Vectorized on scanning Single TINYINT Column, see
> https://github.com/apache/spark/pull/25828/files#diff-e37c3433287c7371ff9c2404db821095R13
> . Need to find out the root cause of this and fix it.
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