================================================================================================ Nested Schema Pruning Benchmark For ORC v1 ================================================================================================ OpenJDK 64-Bit Server VM 1.8.0_282-b08 on Linux 5.4.0-1043-azure Intel(R) Xeon(R) Platinum 8171M CPU @ 2.60GHz Selection: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative ------------------------------------------------------------------------------------------------------------------------ Top-level column 65 76 10 15.4 64.9 1.0X Nested column 353 368 11 2.8 353.0 0.2X Nested column in array 1630 1665 28 0.6 1629.8 0.0X OpenJDK 64-Bit Server VM 1.8.0_282-b08 on Linux 5.4.0-1043-azure Intel(R) Xeon(R) Platinum 8171M CPU @ 2.60GHz Limiting: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative ------------------------------------------------------------------------------------------------------------------------ Top-level column 306 332 11 3.3 306.3 1.0X Nested column 588 629 33 1.7 587.9 0.5X Nested column in array 2064 2110 36 0.5 2064.4 0.1X OpenJDK 64-Bit Server VM 1.8.0_282-b08 on Linux 5.4.0-1043-azure Intel(R) Xeon(R) Platinum 8171M CPU @ 2.60GHz Repartitioning: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative ------------------------------------------------------------------------------------------------------------------------ Top-level column 247 261 7 4.0 247.0 1.0X Nested column 550 577 16 1.8 549.9 0.4X Nested column in array 1987 2012 23 0.5 1987.4 0.1X OpenJDK 64-Bit Server VM 1.8.0_282-b08 on Linux 5.4.0-1043-azure Intel(R) Xeon(R) Platinum 8171M CPU @ 2.60GHz Repartitioning by exprs: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative ------------------------------------------------------------------------------------------------------------------------ Top-level column 260 269 8 3.8 259.7 1.0X Nested column 664 682 17 1.5 663.6 0.4X Nested column in array 2177 2287 71 0.5 2176.6 0.1X OpenJDK 64-Bit Server VM 1.8.0_282-b08 on Linux 5.4.0-1043-azure Intel(R) Xeon(R) Platinum 8171M CPU @ 2.60GHz Sample: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative ------------------------------------------------------------------------------------------------------------------------ Top-level column 80 101 26 12.5 80.3 1.0X Nested column 356 374 21 2.8 356.5 0.2X Nested column in array 1611 1679 39 0.6 1611.0 0.0X OpenJDK 64-Bit Server VM 1.8.0_282-b08 on Linux 5.4.0-1043-azure Intel(R) Xeon(R) Platinum 8171M CPU @ 2.60GHz Sorting: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative ------------------------------------------------------------------------------------------------------------------------ Top-level column 375 396 12 2.7 375.2 1.0X Nested column 738 763 12 1.4 738.1 0.5X Nested column in array 2302 2444 129 0.4 2302.2 0.2X