# Performance

> How fast snappy is: measured numbers, what profiling found, and its benchmark history.

[magmalake](https://magmalake.dev/) [snappy](https://magmalake.dev/s/snappy)

###  Primitives

| Operation | magmalake | Reference |
| --- | --- | --- |
| snappy decompress pure Mojo, 64 MiB | 3.15 GB/s compressible, 31.8 GB/s incompressible | the incompressible path is essentially a memcpy and swings like one — 17.5 GB/s at p90 |

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](https://magmalake.dev/performance#method).

Every merge also runs its benchmarks on a GitHub runner: [the benchmark history](https://magmalake.github.io/snappy.mojo/benchmarks/). Read it for trends; a shared runner is slower and noisier than the table.

[A magmalake project](https://magmalake.dev/)

Apache 2.0 · © 2026 Marius Seritan