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albis). figure 3: core scalability of json, avro, parquet, orc, arrow, and albis on hdfs/nvme. using the albis format, we revise our previous experiment where we read the input store_sales table from hdfs. in the figure above, we show the performance of albis and other file formats with number of cpu cores
involved. at the right hand of the x-axis, we have performance with all 16 cores engaged, hence, representing the peak possible performance. as evident, albis delivers 59.9 gbps out of 74.9 gbps possible bandwidth with hdfs over nvme. albis performance is 1.9 - 21.4x better than other file formats....
https://crail.incubator.apache.org/blog/2018/08/sql-p1.html