================================================================================================ Nested Schema Pruning Benchmark For ORC v2 ================================================================================================ OpenJDK 64-Bit Server VM 1.8.0_282-b08 on Linux 5.4.0-1043-azure Intel(R) Xeon(R) CPU E5-2673 v4 @ 2.30GHz Selection: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative ------------------------------------------------------------------------------------------------------------------------ Top-level column 51 59 9 19.5 51.2 1.0X Nested column 472 492 15 2.1 471.7 0.1X Nested column in array 2371 2418 44 0.4 2370.9 0.0X OpenJDK 64-Bit Server VM 1.8.0_282-b08 on Linux 5.4.0-1043-azure Intel(R) Xeon(R) CPU E5-2673 v4 @ 2.30GHz Limiting: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative ------------------------------------------------------------------------------------------------------------------------ Top-level column 303 346 47 3.3 302.8 1.0X Nested column 1015 1163 136 1.0 1014.8 0.3X Nested column in array 2867 2940 114 0.3 2866.9 0.1X OpenJDK 64-Bit Server VM 1.8.0_282-b08 on Linux 5.4.0-1043-azure Intel(R) Xeon(R) CPU E5-2673 v4 @ 2.30GHz Repartitioning: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative ------------------------------------------------------------------------------------------------------------------------ Top-level column 255 265 5 3.9 255.4 1.0X Nested column 1026 1047 17 1.0 1026.1 0.2X Nested column in array 2760 2813 37 0.4 2760.2 0.1X OpenJDK 64-Bit Server VM 1.8.0_282-b08 on Linux 5.4.0-1043-azure Intel(R) Xeon(R) CPU E5-2673 v4 @ 2.30GHz Repartitioning by exprs: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative ------------------------------------------------------------------------------------------------------------------------ Top-level column 245 258 8 4.1 245.2 1.0X Nested column 1085 1124 35 0.9 1084.8 0.2X Nested column in array 2945 2993 36 0.3 2944.9 0.1X OpenJDK 64-Bit Server VM 1.8.0_282-b08 on Linux 5.4.0-1043-azure Intel(R) Xeon(R) CPU E5-2673 v4 @ 2.30GHz Sample: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative ------------------------------------------------------------------------------------------------------------------------ Top-level column 76 86 13 13.1 76.2 1.0X Nested column 780 824 40 1.3 779.5 0.1X Nested column in array 2450 2530 68 0.4 2449.9 0.0X OpenJDK 64-Bit Server VM 1.8.0_282-b08 on Linux 5.4.0-1043-azure Intel(R) Xeon(R) CPU E5-2673 v4 @ 2.30GHz Sorting: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative ------------------------------------------------------------------------------------------------------------------------ Top-level column 396 425 26 2.5 395.6 1.0X Nested column 1203 1255 51 0.8 1202.7 0.3X Nested column in array 3077 3159 44 0.3 3076.7 0.1X