Files
houseplan-card/test
Codex d72cb704f3 perf: accept the lazy isometric chunk boot-task split in the isometric long-task count budget (#507)
Full Performance of the v1.73.0 stable candidate against the v1.72.0 product
(run 34354409872) was red on one check of the isometric profile:
longTask.countP95 16 → 20 against max(16×1.2, 16+3) = 19.2, with every
timing, longTask.totalP95Ms and longTask.maxSingleMs green. The trace behind
#506 shows why: since v1.73.0-beta.1 the isometric renderer is the lazy
iso-scene-render chunk (#160 Stage 3), so the single v1.72.0 boot task is
split in two around that import — the same work, +2 tasks.

Owner decision 2026-09-09: accept the split. countNoiseAllowance 3 → 5 for
large-house-isometric-v1 only; the ratio, the hard ceiling, total and
maximum single task keep gating real growth. The downloaded CI artefact
re-evaluated with this budget passes (limit 21, actual 20, no failures).
Documented in demo/performance/README.md; the budget test pins the
allowance and the untouched profiles.

Issue: #507
User-Visible: no
Release: v1.73.0
2026-09-09 16:24:15 +03:00
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