Details
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Improvement
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Status: Resolved
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Minor
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Resolution: Fixed
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None
Description
As a follow-up of ARROW-5726. Implement a Map<Object, int> for DictionaryEncoder to reduce boxing/unboxing operations.
Benchmark:
DictionaryEncodeHashMapBenchmarks.testHashMap: avgt 5 31151.345 ± 1661.878 ns/op
DictionaryEncodeHashMapBenchmarks.testDictionaryEncodeHashMap: avgt 5 15549.902 ± 771.647 ns/op
Attachments
Issue Links
- is a parent of
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ARROW-5834 [Java] Apply new hash map in DictionaryEncoder
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- Resolved
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- links to