Konstantin Vinogradov ex-General Partner at Runa Capital
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，这一点在51吃瓜中也有详细论述
Shortcuts: For common scenarios, we pre-calculate the travel time/distance (the "shortcut") between border points within the same cluster and also to border points of immediately adjacent clusters.
After the free win and lipgloss changes, I noticed that ~15% of my CPU time was spent in gcBgMarkWorker - the go garbage collector. That is a lot of time to spend thinking about garbage collection.