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Metadata Struct Benchmark
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OpenJDK 64-Bit Server VM 21.0.12+8-LTS on Linux 6.17.0-1020-azure
AMD EPYC 7763 64-Core Processor
Vectorized Parquet:                       Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
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no metadata columns                                 678            701          21          7.4         135.6       1.0X
_metadata.file_path                                 743            770          19          6.7         148.6       0.9X
_metadata.file_name                                 735            752          14          6.8         147.0       0.9X
_metadata.file_size                                 669            690          12          7.5         133.8       1.0X
_metadata.file_block_start                          677            688           6          7.4         135.5       1.0X
_metadata.file_block_length                         657            673          18          7.6         131.4       1.0X
_metadata.file_modification_time                    657            668          11          7.6         131.5       1.0X
_metadata.row_index                                 723            738          13          6.9         144.7       0.9X
_metadata                                           994           1009          18          5.0         198.7       0.7X

OpenJDK 64-Bit Server VM 21.0.12+8-LTS on Linux 6.17.0-1020-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                                2561           2593          29          2.0         512.2       1.0X
_metadata.file_path                                3306           3326          19          1.5         661.2       0.8X
_metadata.file_name                                3326           3366          22          1.5         665.3       0.8X
_metadata.file_size                                3145           3169          16          1.6         629.1       0.8X
_metadata.file_block_start                         3180           3206          24          1.6         636.1       0.8X
_metadata.file_block_length                        3093           3126          28          1.6         618.5       0.8X
_metadata.file_modification_time                   3159           3180          17          1.6         631.7       0.8X
_metadata.row_index                                3539           3590          37          1.4         707.8       0.7X
_metadata                                          4909           4997          34          1.0         981.8       0.5X

OpenJDK 64-Bit Server VM 21.0.12+8-LTS on Linux 6.17.0-1020-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                                7281           7325          26          0.7        1456.1       1.0X
_metadata.file_path                                7994           8073          50          0.6        1598.8       0.9X
_metadata.file_name                                7927           7961          23          0.6        1585.4       0.9X
_metadata.file_size                                7749           7774          20          0.6        1549.8       0.9X
_metadata.file_block_start                         7755           7777          13          0.6        1550.9       0.9X
_metadata.file_block_length                        7740           7762          11          0.6        1548.0       0.9X
_metadata.file_modification_time                   7746           7763          18          0.6        1549.2       0.9X
_metadata                                          8536           8566          21          0.6        1707.2       0.9X


