[sagarm]

Databricks built a proprietary vectorized accelerator for Spark they call Photon. It's not just that they've tuned OSS Spark especially well.

[RBerenguel]

Back when I was a customer (before Photon was released, also during) they had a very good tuning, in the order of around 2x faster for the workloads we had at the time (very large graph computation and a “simple” filtering)