zit cat costs ~147ms even for a small file, against a 3ms process floor, and every file view forked one. Under load that capped the forge at 32 req/s, degrading to 24 at twenty concurrent readers.

hash-versioned file page: 393ms -> 18ms 50 concurrent: 201 req/s, still climbing

Bounded by BYTES, not entries: values are file contents, and an entry-counted cache holding a 30MB blob is a memory leak with a polite name. Per repository, so a busy store cannot evict a quiet one's entries.

resolveVersion only expands hash PREFIXES. An earlier draft fell back to the index's branch table for names, which served tk a README from 2020: tk renamed its trunk to main, so a branch literally called trunk still exists and is six years stale, while zit resolves the word correctly. 0001 §2 makes zit the authority on names and that is not negotiable — so a symbolic version stays uncached, and the way to fix that is to make links carry the resolved hash. check-in: 0cf9a57e88 user: dmestas tags: trunk