| Comment: | repocache: persist the content log's scan index
The lazy content channel re-walked every frame header on each open — O(store) before the first byte of any comment, cat, or annotate. The scan's product (entries, hash index, shun rows, config cursor, tail key) now persists as .zit-cache/index, self-validating and LogKey-keyed: an exact tail adopts whole, a grown log resumes the walk over the tail alone, and anything else falls back to the authoritative scan (--no-cache never consults it). pkgsrc: info 1.7s -> 0.44s, timeline -n 5 4.3s -> 0.96s. |
|---|---|
| Timelines: | family | ancestors | descendants | both | sub-manifest |
| Files: | files | file ages | folders |
| SHA3-256: |
f2bfd36e7432a5ac1fe2a2735310d097 |
| User & Date: | dmestas on 2026-08-11 19:07:09.441 |
| Other Links: | branch diff | manifest | tags |
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2026-08-11
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| 20:04 |
repostate: carry the C-card comment in the crosslink record
An unlimited timeline re-read and re-parsed every manifest just to print its comment first-line — 163k inflate+parse cycles on pkgsrc. The comment now rides the crosslink record into the derived state (commentOf; image backing falls back to the manifest read), so the render loop is a lookup per row: full timeline 12.3s -> 1.06s. Record-format consumers bumped so old bodies miss instead of misparsing (repocache v3, checkpoint v2 — one re-derive per repo, then warm). zit log's pinned B-log-1 walk untouched. check-in: 57d8de4120 user: dmestas tags: sub-manifest | |
| 19:07 |
repocache: persist the content log's scan index
The lazy content channel re-walked every frame header on each open — O(store) before the first byte of any comment, cat, or annotate. The scan's product (entries, hash index, shun rows, config cursor, tail key) now persists as .zit-cache/index, self-validating and LogKey-keyed: an exact tail adopts whole, a grown log resumes the walk over the tail alone, and anything else falls back to the authoritative scan (--no-cache never consults it). pkgsrc: info 1.7s -> 0.44s, timeline -n 5 4.3s -> 0.96s. check-in: f2bfd36e74 user: dmestas tags: sub-manifest | |
| 18:17 |
logstore: O(1) LRU eviction in PlaintextCache
Replace the pick-the-minimum-stamp linear scan with an intrusive doubly linked recency list; get/put/evict are all constant-time. The scan was invisible at small occupancy and dominant at full: a pkgsrc clone kept the cache pinned at max_entries and spent over half its client CPU sweeping the map once per stored artifact. Measured: clone 12:38 -> 8:39 wall, client CPU 694s -> 463s; cloned store verifies with 0 faults. check-in: 0df83f350a user: dmestas tags: sub-manifest | |