How to resume iteration from previous point in associative array

[bearophile]

Tarman:

> We're doing some "super computing" "big data" style stuff with 
> D. We have a system where we're comparing associative arrays 
> with billions of entries.

Built-in associative arrays were never tested with so many pairs, 
so perform exhaustive performance benchmarks first, and report in 
Bugzilla the performance and memory problems you hit.


> We've tried copying the keys into a non-associative array and 
> sure this works, but it is far far far less optimal than an 
> equivalent C++ solution we wrote where we use an 
> std::unordered_set and can simply store the iterator.

Have you tried the simplest thing, to let std.parallelism chunk a 
  AA.byKey.zip(AA.byValue) ?

Bye,
bearophile