MaxGekk opened a new pull request #28263: [SPARK-31490][SQL][TESTS] Benchmarks conversions to/from Java 8 datetime types URL: https://github.com/apache/spark/pull/28263 ### What changes were proposed in this pull request? - Add benchmark cases for **parallelizing** `java.time.LocalDate` and `java.time.Instant` column values. - Add benchmark cases for **collecting** `java.time.LocalDate` and `java.time.Instant` column values. ### Why are the changes needed? - To detect perf regression in the future - To compare parallelization/collection of Java 8 date-time types with Java 7 date-time types `java.sql.Date` & `java.sql.Timestamp`. ### Does this PR introduce any user-facing change? No ### How was this patch tested? By running the modified benchmarks in the environment: | Item | Description | | ---- | ----| | Region | us-west-2 (Oregon) | | Instance | r3.xlarge | | AMI | ubuntu/images/hvm-ssd/ubuntu-bionic-18.04-amd64-server-20190722.1 (ami-06f2f779464715dc5) | | Java | OpenJDK 64-Bit Server VM 1.8.0_242 and OpenJDK 64-Bit Server VM 11.0.6+10 |
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