dongjoon-hyun commented on issue #22617: [SPARK-25484][SQL][TEST] Refactor ExternalAppendOnlyUnsafeRowArrayBenchmark URL: https://github.com/apache/spark/pull/22617#issuecomment-452610845 If I changed to `false`, the result looks very different. ``` [info] OpenJDK 64-Bit Server VM 1.8.0_191-b12 on Linux 3.10.0-862.3.2.el7.x86_64 [info] Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz [info] Array with 100000 rows: Best/Avg Time(ms) Rate(M/s) Per Row(ns) Relative [info] ------------------------------------------------------------------------------------------------ [info] ArrayBuffer 6653 / 6916 15.4 65.0 1.0X [info] ExternalAppendOnlyUnsafeRowArray 25856 / 25968 4.0 252.5 0.3X ```
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