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https://issues.apache.org/jira/browse/SPARK-13131?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15131413#comment-15131413
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Davies Liu commented on SPARK-13131:
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[~srowen] Fully agreed with you, that's my first thought. Some people have
concern that the best time will lost some information that some algorithm or
implementation will be larger variance that others, for example, it generate
lots of garbage, but GC it's not trigger. So we also include the mean time, for
reference.
> Use best time and average time in micro benchmark
> --------------------------------------------------
>
> Key: SPARK-13131
> URL: https://issues.apache.org/jira/browse/SPARK-13131
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Davies Liu
> Assignee: Davies Liu
>
> Best time should be more stable than average time in benchmark, together with
> average time, they could show more information.
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