NOWN-DEV b88673f366 Model cache: each sheet body is written once, not with every state (#6152) ...

* Test: a saved model keeps each sheet body once

A sheet-metal design wrote its sheet bodies again with every later feature's state in the saved
model: each feature that leaves the sheet alone (a box beside it) adds more than the whole sheet
to the records. A design of many features after its sheet metal passed the cache's 32 MiB
manifest limit that way and kept only some of its states (#3220). The test also opens the saved
file and wants the sheets taken from it as evaluated.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PsiqyXWBFGTCX9J51bhysc

* Model cache: each sheet body is written once, not with every state

Problem: a saved model writes every feature's state, and each state wrote its sheet bodies in
full; most features leave the sheets as they were, so a sheet-metal design of many features
repeated them over and over (a 280-feature part: 30.5 MB of manifest, 29.6 MB of it 69 distinct
sheet records written 243 times). Past the manifest's 32 MiB limit the save thinned the cache
(#3220) and opening evaluated the left-out features again, although the distinct data was small.

Solution: the records keep a list of sheet bodies, each written once; a state names its sheets by
their place in it, as it already does for bodies and sketches. A thinned model keeps the whole
list and counts it once against its budget; the reader counts sheets with the bodies and sketches
a state holds; the cache format is now /4 (an older cache is a miss).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PsiqyXWBFGTCX9J51bhysc

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Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

2026-10-25 01:24:57 +00:00

..

src

Model cache: each sheet body is written once, not with every state (#6152)

2026-10-25 01:24:57 +00:00

build.rs

Save the evaluated model with every design: exact, stored once, scaled caps (#3053) (#3093)

2026-10-20 02:31:08 +00:00

Cargo.toml

Model-cache tests trust an unknown source commit, so they pass without git (#4221)

2026-10-24 21:20:56 +00:00