forked from 1b-agent/opencadstudio-upstream
PanosandClaude Opus 5
91b2344db1
`view-detail` located the first paper frame's cost precisely: 7826.9 of 7832.8 ms in `grid`. Once, on the first frame after a layout switch — every other frame in a 2769-frame session reports it at 0.0. That is the largest single cost in a layout switch, larger than the model re-tessellation and the arena rebuild combined, and it is not geometry work at all. `grid_overlay` itself only wraps a canvas; `grid_segments` runs later, in `draw`. So the time is in `grid_views` or in the per-view parameter build, and reading the two does not settle which: both reach helpers that can fall back to a full document walk, and neither obviously fires for this drawing. `grid-detail views= params= bg= n=` splits it, and reports only when the block costs at least a millisecond so the quiet frames stay quiet. Co-Authored-By: Claude Opus 5 <[email protected]>