Mridul Muralidharan created SPARK-7323: ------------------------------------------
Summary: Use insertAll instead of individual insert while merging combiners Key: SPARK-7323 URL: https://issues.apache.org/jira/browse/SPARK-7323 Project: Spark Issue Type: Improvement Components: Spark Core Reporter: Mridul Muralidharan Currently we invoke combiners.insert() for each tuple in Aggregator - which results in creation of an Iterator per tuple, and iterating over this iterator : instead, we can directly call insertAll to avoid the object creation, method invocation and iteration overhead - for each tuple when combiners are used. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org