Module flops 

Structs

Row

subtree is what the holder pays for this value; shared marks one an earlier row already paid for, read again at no cost.

Tree

Work

What a stream or a render did, counted exactly and alike on every machine: the samples written, the price, and the waves summed.

Functions

dominating

The root restates the whole, so the refusal names the costliest row under it.

total

Every value once, however many read it.

tree

tree_at