================================================================================================ Nested Schema Pruning Benchmark For Parquet ================================================================================================ OpenJDK 64-Bit Server VM 1.8.0_201-b09 on Linux 3.10.0-862.3.2.el7.x86_64 Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz Selection: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative ------------------------------------------------------------------------------------------------------------------------ Top-level column 128 166 24 7.8 128.0 1.0X Nested column 308 325 10 3.2 308.3 0.4X OpenJDK 64-Bit Server VM 1.8.0_201-b09 on Linux 3.10.0-862.3.2.el7.x86_64 Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz Limiting: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative ------------------------------------------------------------------------------------------------------------------------ Top-level column 447 496 91 2.2 447.0 1.0X Nested column 631 666 40 1.6 631.2 0.7X OpenJDK 64-Bit Server VM 1.8.0_201-b09 on Linux 3.10.0-862.3.2.el7.x86_64 Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz Repartitioning: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative ------------------------------------------------------------------------------------------------------------------------ Top-level column 360 394 84 2.8 360.0 1.0X Nested column 553 586 65 1.8 553.5 0.7X OpenJDK 64-Bit Server VM 1.8.0_201-b09 on Linux 3.10.0-862.3.2.el7.x86_64 Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz Repartitioning by exprs: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative ------------------------------------------------------------------------------------------------------------------------ Top-level column 368 393 50 2.7 368.3 1.0X Nested column 2942 3017 82 0.3 2942.0 0.1X OpenJDK 64-Bit Server VM 1.8.0_201-b09 on Linux 3.10.0-862.3.2.el7.x86_64 Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz Sample: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative ------------------------------------------------------------------------------------------------------------------------ Top-level column 124 143 10 8.1 124.1 1.0X Nested column 345 366 34 2.9 344.8 0.4X OpenJDK 64-Bit Server VM 1.8.0_201-b09 on Linux 3.10.0-862.3.2.el7.x86_64 Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz Sorting: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative ------------------------------------------------------------------------------------------------------------------------ Top-level column 577 618 55 1.7 576.8 1.0X Nested column 3473 3524 49 0.3 3473.0 0.2X