[skrebbel]

I don't understand how this works. Is data read from ETS somehow shared more efficiently than data shared via a regular message? (which iirc is always copied)

[dnautics]

It's still copied but if you are using an ets table you're likely only copying a small subset of the data per query instead of schlepping the whole index every time.

[eproxus]

It’s still copied, but a process can quickly become a bottleneck in parallel code (every request to a process is sequential).

An ETS table can be concurrently read (and tweaked even further for that use case if desired).

[heywhy]

Like eproxus mentioned, it's still been shared through normal process messaging but improvements will be made regarding this.