PERF.17 Frame rates on a graphics card: the VPS measures software GL only (BimCraft zoom p95 500 ms, ModelCraft 649 ms) — run the open-file tool on workstation11a

tools/perf/open-file.mjs runs Chromium with swiftshader on the VPS, so the zoom frame times it prints for the 683k-triangle IFC (p95 500 ms) and the 10.7 MB glTF (p95 649 ms) are the main thread's plus a software rasteriser, not what a person sees. Plan: run the same tool on workstation11a (tools/gpu-remote/run.sh; Chrome with the GPU) against /use, record p50/p95 frame times per app and file in docs/0.9-sessions/perf-09.md, and set the budget (p95 under 33 ms while orbiting a 1M-triangle model); only then decide on instancing, LOD or culling work in the shared renderer.