In particular, it had an example about parsing arithmetic, which was straightforward to adapt to my use case.
Now, for each shortcut in this sequence, OsmAnd runs its highly optimized A* algorithm on the detailed map, but strictly limited to the small area of the cluster that shortcut belongs to.
。关于这个话题，夫子提供了深入分析
32 entries may sound small by modern standards (current x86 processors have thousands of TLB entries), but it covers 128 KB of memory -- enough for the working set of most 1980s programs. A TLB miss is not catastrophic either; the hardware page walker handles it transparently in about 20 cycles.
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