Artifact Description [9f4a2f2ff8]

Artifact 9f4a2f2ff8ca74da80649d5c9d9532e84dde59438b459ad7cf492b6d8f27fc46:

• File docs/plans/bench/step2-pickbase-unstamped-run.json
  • 2026-07-17 22:05:15 — part of check-in [d859c6a9a5] on branch storage — feat(§5): pickBase deep module + putArtifact lineage+chrono-window wiring with <75% accept threshold

    fossil-scm-clone: zit=117528088B fossil=72245248B ratio=1.6268 [zlib 9647 frames / 92,073,728 B (78.3%, avg 9544 B); delta 57852 frames / 25,454,120 B (21.7%, avg 439 B); config 2 frames / 176 B; raw 0 frames. Header+padding overhead 3,711,845 B (3.2%). Exact accounting: 64 + zlib + delta + config == 117,528,088. Artifact types: checkin/manifest 20848 / 26,721,968 B (22.7%), other 6929 / 4,835,264 B (4.1%), file-blob 39722 / 85,970,616 B (73.1%).] | sqlite: zit=207344544B fossil=147709952B ratio=1.4037 [zlib 10847 frames / 140,422,768 B (67.7%, avg 12945 B); delta 120147 frames / 66,921,536 B (32.3%, avg 556 B); config 2 frames / 176 B; raw 0 frames. Header+padding overhead 7,212,808 B (3.5%). Exact accounting: 64 + zlib + delta + config == 207,344,544. Artifact types: checkin/manifest 36515 / 81,006,048 B (39.1%), other 4775 / 5,531,960 B (2.7%), file-blob 89704 / 120,806,296 B (58.3%).]

    vs baseline: fossil-scm-clone: zit=117528088B fossil=72245248B ratio=1.627 [raw=0B/0f; zlib=92073728B/9647f (78.3%); delta=25454120B/57852f (21.7%); config=176B/2f. Header+padding overhead 3711845B (3.2%). Artifact-type: checkin/manifest 26721968B/20848, other 4835264B/6929, file-blob 85970616B/39722. Accounting exact.] | sqlite: zit=207344544B fossil=147709952B ratio=1.404 [raw=0B/0f; zlib=140422768B/10847f (67.7%); delta=66921536B/120147f (32.3%); config=176B/2f. Header+padding overhead 7212808B (3.5%). Artifact-type: checkin/manifest 81006048B/36515, other 5531960B/4775, file-blob 120806296B/89704. Accounting exact.] (user: dmestas, size: 10893) [annotate] [blame] [check-ins using]

  • 2026-07-18 16:24:11 — part of check-in [bab9303056] on branch trunk — Merge storage: at-rest re-deltification closes most of the content-bytes gap

    fossil-style best-of-N delta base selection (pickBase, plan §5) plus a `zit pack` re-deltification pass with a monotonic-shrink guard (§6.1) and same-path candidates (§6.2). At-rest only: all four RFCs conformant, wire interop preserved, every repacked frame hash-verified against the log.

    Measured (whole-file, index-inclusive): sqlite: 207.3 MB -> 174.4 MB (1.40x -> 1.18x vs fossil 147.7 MB) fossil-scm: 117.5 MB -> 108.1 MB (1.63x -> 1.50x vs fossil 72.2 MB)

    The monotonic-shrink guard (keep the smaller of {existing frame, re-encoding}) is what turned re-deltifying a clone of fossil-quality wire deltas into a net win instead of a +33% regression. (user: dmestas, size: 10893) [annotate] [blame] [check-ins using]

  • 2026-07-18 17:05:22 — part of check-in [e640119891] on branch cli — Merge trunk into cli: integrate the storage pack work with the verb slice

    Brings trunk bab930 (the storage branch's at-rest re-deltification / zit pack generational rewrite, plus src/pack.zig and its bench baselines) into the cli-verbs-2 slice. One conflict, in src/root.zig — both branches added a module export at the same spot; resolved by keeping both (pub const bisect and pub const pack). logstore.zig and main.zig auto-merged. Integrated tree green: 1678 unit + 376 e2e; the seven new verbs and the pack pass together. (user: dmestas, size: 10893) [annotate] [blame] [check-ins using]