Tag: data engineering

Cartoon Spark engine lifted from a chassis beside a Sail engine, asking whether the results stay the same.

Sail vs Spark: Architecture, Benchmarks, Dask and Numba

Sail changes the engine behind Spark Connect; Dask distributes Python work; Numba compiles numerical functions. I compare their roles, qualify Sail’s published benchmarks and outline the checks needed before a migration.

By Julien Laurenceau, 4 months2026-06-14 ago

Tesla’s .SMOL Format Shows Why Most Enterprise Data Lakes Are Architecturally Wrong

When Tesla published patent WO2024073080 describing a new file format internally called “.smol”, the headline was simple: 4x reduction in IOPS for AI training. Most people read this as a hardware story. It isn’t. It’s a data architecture story. And it exposes a structural weakness in how most enterprise data Read more

By Julien Laurenceau, 9 months2026-02-11 ago