Performance
| Operation | magmalake | Reference |
|---|---|---|
| Roaring bitmap, 10M random values add / serialize / deserialize | 1.30 s / 22.2 ms / 60.3 ms | the add figure was published as 5–11 s until the RNG was moved out of the timed loop |
scroll the table sideways →
Apple M4 — ten cores, four of them performance — macOS, stable Mojo 1.0.0, with nothing else building on the machine. Measured on 5 September 2026; the Iceberg rows on 15 September, the boundary rows on 19 September. How these were measured.
Every merge also runs its benchmarks on a GitHub runner: the benchmark history. Read it for trends; a shared runner is slower and noisier than the table.