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Davies Liu 0e5ebac3c1 [SPARK-12950] [SQL] Improve lookup of BytesToBytesMap in aggregate 
This PR improve the lookup of BytesToBytesMap by:

1. Generate code for calculate the hash code of grouping keys.

2. Do not use MemoryLocation, fetch the baseObject and offset for key and value directly (remove the indirection).

Author: Davies Liu <davies@databricks.com>

Closes #11010 from davies/gen_map.
2016-02-09 16:41:21 -08:00
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java/org/apache/spark [SPARK-12950] [SQL] Improve lookup of BytesToBytesMap in aggregate 2016-02-09 16:41:21 -08:00
resources/org/apache/spark [SPARK-13088] Fix DAG viz in latest version of chrome 2016-01-29 18:00:49 -08:00
scala/org/apache/spark [SPARK-13245][CORE] Call shuffleMetrics methods only in one thread for ShuffleBlockFetcherIterator 2016-02-09 16:31:00 -08:00