Parents and children of check-in [a30155185d]
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2026-10-23
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| 06:03 |
perf(serve): memoize a clone request's forwardable sources
forwardableSource reads a row, its shun and private state and the tree gate each time it is asked, and a clone round asks about the same rows from every chain walk and every sentEarlier search: a twelfth of a dense clone's CPU. A request reads one snapshot, so the verdicts are kept for its duration. TestCorpusClone logs an origin error, which its client sees only as an HTTP status. check-in: b9ec3c086e user: [email protected] tags: feat/horizon-cones, trunk | |
| 06:03 |
perf(manifest): keep available verdicts across a clone's links
ReceiveLinker.LinkStored made a fresh availability cache for every blob it linked, so each deferred check-in's retry walked every F card's delta chain again; after the receive fixes that walk was a sixth of a dense clone's CPU. Only the unavailable verdicts can go stale during a receive, which only adds content, and a clone whose round fails stops receiving, so LinkStored now drops just those (AvailabilityCache.ForgetUnavailable) and keeps the rest. check-in: a30155185d user: [email protected] tags: feat/horizon-cones, trunk | |
| 05:29 |
perf(serve): send a clone's delta chains once
A clone round sends each row with its delta chain, source first, but only remembered what it sent within the round. fossil deltifies each version of a file against the next, so the rows of a file's versions come in rid order, each a delta on a later one: the oldest version's round sent the whole history, and each later version's row, reached in a later round, sent the rest of it again. Cloning the Fossil repository received 333,063 delta cards by round 64 for 22,353 new artifacts, each checked again by the client. The origin now infers what earlier rounds sent: a row below the cursor that its round sent as itself reaches, through sources this clone forwards, every node of its chain. sentEarlier walks down the delta table from a row or a chain source, at most 256 rows, and a row it finds sent is skipped like one sent earlier in the round, and a chain stops at a source it finds sent. Not finding one sends again, which is only redundant. A row below the cursor filled or published after its round passed it is taken as sent; rows below the cursor are not sent again in any case. check-in: 07b30dccde user: [email protected] tags: feat/horizon-cones, trunk | |