inst/benchmarks/benchmark-results.md

In basetable: Fast and Memory-Efficient Base R Table Manipulation

All cores (16 threads; dplyr single-threaded)

| Operation | basetable | data.table | dplyr | basetable mem | data.table mem | dplyr mem | | --- | ---: | ---: | ---: | ---: | ---: | ---: | | filter | 10 ms | 13 ms | 13 ms | 14.51 MB | 21.19 MB | 28.34 MB | | sort (string key) | 57 ms | 35 ms | 77 ms | 34.37 MB | 46.85 MB | 68.83 MB | | distinct | 4 ms | 17 ms | 13 ms | 0.03 MB | 19.59 MB | 12.02 MB | | count by group | 23 ms | 59 ms | 838 ms | 1.16 MB | 30.27 MB | 29.72 MB | | sd by group | 12 ms | 25 ms | 56 ms | 0.05 MB | 26.91 MB | 36.02 MB | | equi join | 18 ms | 18 ms | 67 ms | 7.64 MB | 7.63 MB | 101.08 MB | | semi join | 15 ms | 60 ms | 56 ms | 3.84 MB | 57.80 MB | 81.57 MB |

Single thread (basetable and data.table pinned to 1)

| Operation | basetable | data.table | dplyr | basetable mem | data.table mem | dplyr mem | | --- | ---: | ---: | ---: | ---: | ---: | ---: | | filter | 11 ms | 12 ms | 14 ms | 10.58 MB | 19.40 MB | 27.01 MB | | sort (string key) | 156 ms | 162 ms | 107 ms | 34.33 MB | 46.75 MB | 68.11 MB | | distinct | 5 ms | 19 ms | 7 ms | 0.02 MB | 19.18 MB | 11.85 MB | | count by group | 28 ms | 50 ms | 935 ms | 1.14 MB | 29.41 MB | 28.80 MB | | sd by group | 18 ms | 43 ms | 62 ms | 0.03 MB | 26.84 MB | 35.99 MB | | equi join | 24 ms | 26 ms | 75 ms | 7.63 MB | 7.63 MB | 100.60 MB | | semi join | 54 ms | 68 ms | 65 ms | 3.81 MB | 57.37 MB | 81.52 MB |

basetable documentation built on Sept. 18, 2026, 9:13 a.m.