Closes #3711: Add Parquet fixed length string benchmark #3712
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Add a Parquet string read benchmark that compares the performance of reading Parquet files with a fixed number of characters with and without the fixed length optimization. This will test (1) single file reads (2) multi-file reads with larger files (3) multi-file reads with smaller files and (4) all of the previous with the fixed length optimization. Here are results demonstrating ~2x speedup with using the fixed length string optimization collected on a Cray XC with a Lustre file system: | test | sec | |:------------------|-------:| | single-file | 39.388 | | fixed-single | 20.664 | | scaled-five | 17.283 | | fixed-scaled-five | 8.814 | | five | 85.332 | | fixed-five | 43.743 | | scaled-ten | 8.998 | | fixed-scaled-ten | 4.794 | | ten | 86.761 | | fixed-ten | 45.498 |
ajpotts
approved these changes
Aug 29, 2024
stress-tess
approved these changes
Aug 30, 2024
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Add a Parquet string read benchmark that compares the performance of
reading Parquet files with a fixed number of characters with and
without the fixed length optimization. This will test (1) single
file reads (2) multi-file reads with larger files (3) multi-file
reads with smaller files and (4) all of the previous with the fixed
length optimization.
Here are results demonstrating ~2x speedup with using the fixed
length string optimization collected on a Cray XC with a Lustre file system:
Closes #3711