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Posted to issues@spark.apache.org by "Josh Rosen (JIRA)" <ji...@apache.org> on 2015/05/07 02:07:59 UTC

[jira] [Commented] (SPARK-7416) Shuffle performance metrics umbrella

    [ https://issues.apache.org/jira/browse/SPARK-7416?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14531740#comment-14531740 ] 

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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