================================================================================================ Nested Schema Pruning Benchmark For ORC v1 ================================================================================================ OpenJDK 64-Bit Server VM 1.8.0_212-b04 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 127 163 24 7.9 127.1 1.0X Nested column 974 1023 39 1.0 974.2 0.1X Nested column in array 4834 4857 23 0.2 4834.1 0.0X OpenJDK 64-Bit Server VM 1.8.0_212-b04 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 454 488 45 2.2 454.3 1.0X Nested column 1539 1602 80 0.6 1539.3 0.3X Nested column in array 5765 5848 69 0.2 5764.7 0.1X OpenJDK 64-Bit Server VM 1.8.0_212-b04 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 365 395 58 2.7 364.9 1.0X Nested column 1456 1477 23 0.7 1456.0 0.3X Nested column in array 5734 5842 91 0.2 5734.4 0.1X OpenJDK 64-Bit Server VM 1.8.0_212-b04 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 373 387 15 2.7 372.8 1.0X Nested column 4349 4397 59 0.2 4348.8 0.1X Nested column in array 8893 8971 73 0.1 8893.2 0.0X OpenJDK 64-Bit Server VM 1.8.0_212-b04 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 130 159 24 7.7 129.9 1.0X Nested column 1160 1216 50 0.9 1159.8 0.1X Nested column in array 5297 5420 176 0.2 5296.8 0.0X OpenJDK 64-Bit Server VM 1.8.0_212-b04 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 585 615 60 1.7 585.5 1.0X Nested column 4972 5213 156 0.2 4972.2 0.1X Nested column in array 10095 10156 32 0.1 10095.4 0.1X