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Dongjoon Hyun ff3a737c75 [SPARK-29192][TESTS] Extend BenchmarkBase to write JDK9+ results separately
### What changes were proposed in this pull request?

This PR aims to extend the existing benchmarks to save JDK9+ result separately.
All `core` module benchmark test results are added. I'll run the other test suites in another PR.
After regenerating all results, we will check JDK11 performance regressions.

### Why are the changes needed?

From Apache Spark 3.0, we support both JDK8 and JDK11. We need to have a way to find the performance regression.

### Does this PR introduce any user-facing change?

No.

### How was this patch tested?

Manually run the benchmark.

Closes #25873 from dongjoon-hyun/SPARK-JDK11-PERF.

Authored-by: Dongjoon Hyun <dhyun@apple.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
2019-09-20 19:41:25 -07:00