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https://issues.apache.org/jira/browse/SPARK-7416?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14531740#comment-14531740
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Josh Rosen commented on SPARK-7416:
-----------------------------------
It would be very useful to have a more fine-grained breakdown of where time is
spent in sort-based shuffle. For instance, it would be helpful to separate time
spent in sorting, spill IO, and merge IO.
> Shuffle performance metrics umbrella
> ------------------------------------
>
> Key: SPARK-7416
> URL: https://issues.apache.org/jira/browse/SPARK-7416
> Project: Spark
> Issue Type: Umbrella
> Components: Shuffle
> Reporter: Josh Rosen
>
> This is an umbrella JIRA for discussing improvements / enhancements to
> Spark's shuffle performance metrics.
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