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59aa70ce5a
A 4x-CPU-throttled retrace (the honest weak-hardware proxy) surfaced three residual per-frame costs; stack attribution pinned each: - getParameters/getProgramCacheKey (~4% of main thread): every pooled label sprite map swap set material.needsUpdate, bumping material.version and forcing full program re-resolution next render. Swapping between two non-null cached textures never changes the compiled program (USE_MAP define unchanged) — new _setLabelMap() helper only flags needsUpdate on a null<->texture transition, used at all 7 swap sites. - getBoundingClientRect (~1.2%): the 3D highway's per-frame canvas-size self-check forced a layout read every frame. The CSS-box drift read now runs every 10th frame (or when the wrap isn't pinned); the backing-store comparison stays per-frame with cheap property reads and forces an immediate box read + applySize when it fires. - set textContent: the core 60 Hz HUD clock rewrote hud-time (and getElementById'd it) every tick for a display that changes 1/s — now write-on-change with a cached element ref. (The remaining textContent writer in the trace is notedetect's badges.js — external repo, to be filed there.) tests/js: resize-reframe shape test updated for the hoisted _bsChanged gate, incl. an assertion that the throttle can never delay the backing-store path. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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| .. | ||
| achievements | ||
| app_tour_library | ||
| app_tour_settings | ||
| capability_inspector | ||
| folder_library | ||
| highway_3d | ||
| input_setup | ||
| minigames | ||
| tuner | ||
| __init__.py | ||