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Metadata Struct Benchmark
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OpenJDK 64-Bit Server VM 17.0.11+9-LTS on Linux 6.5.0-1018-azure
AMD EPYC 7763 64-Core Processor
Vectorized Parquet:                       Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
------------------------------------------------------------------------------------------------------------------------
no metadata columns                                 649            669          23          7.7         129.8       1.0X
_metadata.file_path                                 750            765          10          6.7         150.0       0.9X
_metadata.file_name                                 776            793          20          6.4         155.2       0.8X
_metadata.file_size                                 687            706          24          7.3         137.5       0.9X
_metadata.file_block_start                          684            697          11          7.3         136.7       0.9X
_metadata.file_block_length                         686            703          13          7.3         137.3       0.9X
_metadata.file_modification_time                    686            702          15          7.3         137.2       0.9X
_metadata.row_index                                 732            757          28          6.8         146.4       0.9X
_metadata                                          1048           1065          16          4.8         209.5       0.6X

OpenJDK 64-Bit Server VM 17.0.11+9-LTS on Linux 6.5.0-1018-azure
AMD EPYC 7763 64-Core Processor
Parquet-mr:                               Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
------------------------------------------------------------------------------------------------------------------------
no metadata columns                                2565           2605          42          1.9         512.9       1.0X
_metadata.file_path                                3396           3431          32          1.5         679.3       0.8X
_metadata.file_name                                3391           3429          30          1.5         678.2       0.8X
_metadata.file_size                                3174           3205          25          1.6         634.8       0.8X
_metadata.file_block_start                         3187           3243          61          1.6         637.4       0.8X
_metadata.file_block_length                        3228           3266          39          1.5         645.6       0.8X
_metadata.file_modification_time                   3220           3261          31          1.6         644.0       0.8X
_metadata.row_index                                3609           3644          23          1.4         721.7       0.7X
_metadata                                          4854           4910          27          1.0         970.8       0.5X

OpenJDK 64-Bit Server VM 17.0.11+9-LTS on Linux 6.5.0-1018-azure
AMD EPYC 7763 64-Core Processor
JSON:                                     Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
------------------------------------------------------------------------------------------------------------------------
no metadata columns                                6808           6932         123          0.7        1361.5       1.0X
_metadata.file_path                                7560           7591          18          0.7        1512.0       0.9X
_metadata.file_name                                7594           7619          42          0.7        1518.9       0.9X
_metadata.file_size                                7372           7392          10          0.7        1474.3       0.9X
_metadata.file_block_start                         7369           7393          18          0.7        1473.8       0.9X
_metadata.file_block_length                        7370           7389          15          0.7        1474.1       0.9X
_metadata.file_modification_time                   7376           7393          13          0.7        1475.1       0.9X
_metadata                                          8188           8211          23          0.6        1637.5       0.8X


