Module miri::borrow_tracker::stacked_borrows::stack
source · Structs
Extra per-location state.
A very small cache of searches of a borrow stack, mapping
Items to their position in said stack.Constants
Exactly what cache size we should use is a difficult tradeoff. There will always be some
workload which has a
BorTag working set which exceeds the size of the cache, and ends up
falling back to linear searches of the borrow stack very often.
The cost of making this value too large is that the loop in Stack::insert which ensures the
entries in the cache stay correct after an insert becomes expensive.