A few fixes for iteration performance, mostly gridchunks having an abstract type field was causing a lot of overhead.
There is still a pretty big cost from Iterators.Stateful for Unchunked() arrays that don't actually need it. We can probably fix that as well at some stage.
(I moved the code into _iterate_disk so we can do more of this work in future more easily)
A few fixes for iteration performance, mostly gridchunks having an abstract type field was causing a lot of overhead.
There is still a pretty big cost from Iterators.Stateful for
Unchunked()arrays that don't actually need it. We can probably fix that as well at some stage.(I moved the code into
_iterate_diskso we can do more of this work in future more easily)