[jira] [Commented] (SPARK-7826) Suppress extra calling getCacheLocs.

["Apache Spark (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-7826?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14555930#comment-14555930 ] 

Apache Spark commented on SPARK-7826:
-------------------------------------

User 'ueshin' has created a pull request for this issue:
https://github.com/apache/spark/pull/6352

> Suppress extra calling getCacheLocs.
> ------------------------------------
>
>                 Key: SPARK-7826
>                 URL: https://issues.apache.org/jira/browse/SPARK-7826
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>            Reporter: Takuya Ueshin
>
> There are too many extra call method {{getCacheLocs}} for {{DAGScheduler}}, which includes Akka communication.
> To improve {{DAGScheduler}} performance, suppress extra calling the method.
> In my application with over 1200 stages, the execution time became 3.8 min from 8.5 min with my patch.



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