================================================================================================ Nested Schema Pruning Benchmark For Parquet ================================================================================================ OpenJDK 64-Bit Server VM 11.0.5+10-post-Ubuntu-0ubuntu1.118.04 on Linux 4.15.0-1044-aws 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 150 218 36 6.6 150.5 1.0X Nested column 294 334 39 3.4 293.8 0.5X Nested column in array 994 1024 34 1.0 994.3 0.2X OpenJDK 64-Bit Server VM 11.0.5+10-post-Ubuntu-0ubuntu1.118.04 on Linux 4.15.0-1044-aws 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 161 183 13 6.2 160.9 1.0X Nested column 296 332 43 3.4 295.6 0.5X Nested column in array 1048 1089 48 1.0 1047.9 0.2X OpenJDK 64-Bit Server VM 11.0.5+10-post-Ubuntu-0ubuntu1.118.04 on Linux 4.15.0-1044-aws 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 393 411 16 2.5 393.1 1.0X Nested column 550 563 9 1.8 549.9 0.7X Nested column in array 1468 1494 20 0.7 1467.5 0.3X OpenJDK 64-Bit Server VM 11.0.5+10-post-Ubuntu-0ubuntu1.118.04 on Linux 4.15.0-1044-aws 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 404 419 15 2.5 404.2 1.0X Nested column 2833 2875 24 0.4 2832.8 0.1X Nested column in array 3340 3396 53 0.3 3340.3 0.1X OpenJDK 64-Bit Server VM 11.0.5+10-post-Ubuntu-0ubuntu1.118.04 on Linux 4.15.0-1044-aws 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 142 159 12 7.0 142.3 1.0X Nested column 308 318 8 3.2 307.8 0.5X Nested column in array 1119 1154 32 0.9 1118.5 0.1X OpenJDK 64-Bit Server VM 11.0.5+10-post-Ubuntu-0ubuntu1.118.04 on Linux 4.15.0-1044-aws 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 338 342 2 3.0 338.0 1.0X Nested column 1873 1971 129 0.5 1873.1 0.2X Nested column in array 2708 2760 50 0.4 2707.9 0.1X