================================================================================================ Nested Schema Pruning Benchmark For ORC v2 ================================================================================================ OpenJDK 64-Bit Server VM 1.8.0_222-b10 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 141 161 22 7.1 140.6 1.0X Nested column 1425 1455 26 0.7 1424.7 0.1X Nested column in array 5248 5300 46 0.2 5247.5 0.0X OpenJDK 64-Bit Server VM 1.8.0_222-b10 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 133 163 22 7.5 132.8 1.0X Nested column 1254 1308 40 0.8 1254.0 0.1X Nested column in array 5303 5418 81 0.2 5303.3 0.0X OpenJDK 64-Bit Server VM 1.8.0_222-b10 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 377 401 19 2.7 376.7 1.0X Nested column 1676 1722 21 0.6 1676.1 0.2X Nested column in array 6019 6127 109 0.2 6018.7 0.1X OpenJDK 64-Bit Server VM 1.8.0_222-b10 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 390 447 151 2.6 390.1 1.0X Nested column 4300 4364 60 0.2 4299.7 0.1X Nested column in array 8832 9030 114 0.1 8832.4 0.0X OpenJDK 64-Bit Server VM 1.8.0_222-b10 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 132 143 7 7.6 131.6 1.0X Nested column 1260 1303 20 0.8 1260.2 0.1X Nested column in array 5359 5453 74 0.2 5359.1 0.0X OpenJDK 64-Bit Server VM 1.8.0_222-b10 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 288 302 20 3.5 287.6 1.0X Nested column 3169 3242 53 0.3 3168.7 0.1X Nested column in array 8151 8301 123 0.1 8151.3 0.0X