Константин Лысяков (Редактор отдела «Россия»)
Crucially, this distribution of border points is agnostic of routing speed profiles. It’s based only on whether a road is passable or not. This means the same set of clusters and border points can be used for all car routing profiles (default, shortest, fuel-efficient) and all bicycle profiles (default, prefer flat terrain, etc.). Only the travel time/cost values of the shortcuts between these points change based on the profile. This is a massive factor in keeping storage down – map data only increased by about 0.5% per profile to store this HH-Routing structure!
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Compared to AMD’s Zen 5, X925 has roughly comparable capacity in its fastest BTB level depending on branch spacing. Zen 5 has more maximum branch target caching capacity, especially when it can use a single BTB entry to track two branches. Still, X925 has more branch target storage than Arm cores from a few years ago. Cortex X2 for example topped out at about 10K branch targets.