Chain filters cpu utilization (#16817) #16857
Merged
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Porting #16817 to release-x.39.x
descending as far as possible on each possible path
not actually fooled by loops since we abandon after a certain path
length. But will remove some false starts before they have to be
killed by the path length check.
We reach nodes in the shortest path possible, so keep a list of nodes
visited and don't revisit them: we got to them as fast as possible,
and once there, there's no new nodes that we can see from that vantage
point.
This allows a serious speedup and should hopefully fully resolve the
cpu issues seen by some.