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Posted to issues@spark.apache.org by "Davies Liu (JIRA)" <ji...@apache.org> on 2015/08/04 19:26:04 UTC
[jira] [Created] (SPARK-9604) Unsafe ArrayData and MapData is very
very slow
Davies Liu created SPARK-9604:
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Summary: Unsafe ArrayData and MapData is very very slow
Key: SPARK-9604
URL: https://issues.apache.org/jira/browse/SPARK-9604
Project: Spark
Issue Type: Bug
Components: SQL
Reporter: Davies Liu
Assignee: Wenchen Fan
Priority: Blocker
After the unsafe ArrayData and MapData merged in, this test become very slow (from less than 1 second to more than 35 seconds).
https://amplab.cs.berkeley.edu/jenkins/job/Spark-Master-SBT/AMPLAB_JENKINS_BUILD_PROFILE=hadoop2.3,label=centos/3157/testReport/org.apache.spark.sql.columnar/InMemoryColumnarQuerySuite/test_different_data_types/history/
I tried to disable the cache, it's still very slow (also most the same), once remove ArrayData and ArrayMap, it become much faster (still take about 10 seconds).
cc [~rxin]
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