Based on measurement of #21205, write/analyze additional proposals and tickets for lowering bw usage for directory stuff
Based on the measurements we get from legacy/trac#21205 (moved), we'll probably learn more about some actual bandwidth needs, and the circumstances when dir BW is overused. We should add tickets to fix the bugs, possibly with proposals, based on what we find otu.
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information