Nov 4, 2024

My intuition is that the speedups are coming from the more aggressive peer utilisation during download, and the clear separation of unordered vs ordered checks to take advantage of parallelism.

I do also think this is what drives most of the IBD speedup there. And it is directly related to their architecture, doing it for Bitcoin Core wouldn’t bring much benefit since you still have to update the UTxO set

Yes although in the context of this specific benchmark it’s more about being able to skip a whole class of checks than parallelizing them, i think.