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Metadata Struct Benchmark
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OpenJDK 64-Bit Server VM 21.0.8+9-LTS on Linux 6.11.0-1018-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                                 639            659          16          7.8         127.8       1.0X
_metadata.file_path                                 735            749          11          6.8         147.1       0.9X
_metadata.file_name                                 735            745           9          6.8         147.0       0.9X
_metadata.file_size                                 662            673           9          7.6         132.3       1.0X
_metadata.file_block_start                          631            666          12          7.9         126.3       1.0X
_metadata.file_block_length                         661            671           6          7.6         132.3       1.0X
_metadata.file_modification_time                    662            670           6          7.6         132.3       1.0X
_metadata.row_index                                 695            715          12          7.2         139.0       0.9X
_metadata                                           954            978          11          5.2         190.8       0.7X

OpenJDK 64-Bit Server VM 21.0.8+9-LTS on Linux 6.11.0-1018-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                                2758           2792          27          1.8         551.7       1.0X
_metadata.file_path                                3525           3567          22          1.4         705.0       0.8X
_metadata.file_name                                3511           3541          16          1.4         702.2       0.8X
_metadata.file_size                                3358           3391          30          1.5         671.6       0.8X
_metadata.file_block_start                         3363           3387          19          1.5         672.5       0.8X
_metadata.file_block_length                        3359           3386          20          1.5         671.8       0.8X
_metadata.file_modification_time                   3355           3387          20          1.5         671.0       0.8X
_metadata.row_index                                3650           3681          32          1.4         730.0       0.8X
_metadata                                          4791           4824          24          1.0         958.2       0.6X

OpenJDK 64-Bit Server VM 21.0.8+9-LTS on Linux 6.11.0-1018-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                                6897           6946          65          0.7        1379.4       1.0X
_metadata.file_path                                7726           7756          14          0.6        1545.3       0.9X
_metadata.file_name                                7734           7793          38          0.6        1546.8       0.9X
_metadata.file_size                                7549           7581          20          0.7        1509.8       0.9X
_metadata.file_block_start                         7546           7602          33          0.7        1509.2       0.9X
_metadata.file_block_length                        7574           7610          24          0.7        1514.8       0.9X
_metadata.file_modification_time                   7561           7600          21          0.7        1512.1       0.9X
_metadata                                          8303           8337          18          0.6        1660.5       0.8X


