Skip rebalancing in glue #1094
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Skip rebalancing in glue #1094
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If two non-empty trees are balanced with respect to each other, removing one element from the larger does not take away that property.
treeowl
approved these changes
Jan 17, 2025
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Yes it's too small a change to make a noticeable difference in our benchmarks. If I construct a (very artificial) benchmark like s = Set.fromList [1,2,3]
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bench "delete123" $ whnf (S.delete 2) s123the change is ~15.8ns to ~9.7ns. |
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Good catch regardless. |
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If two non-empty trees are balanced with respect to each other, removing one element from the larger does not take away that property.