.57| 0.72  0.45| 0.54  0.40|    785 MB   |
PPL parallel_buffered_sort | 2.20  2.26| 1.34  1.24| 1.03  0.79| 1.00  0.83| 0.90  0.85| 0.78  0.87|   1567 MB   |
                           |           |           |           |           |           |           |             |
block_indirect_sort        | 1.62  1.59| 0.94  0.87| 0.63  0.57| 0.50  0.44| 0.58  0.38| 0.55  0.35|    785 MB   |
                           |           |           |           |           |           |           |             |
sample so