On a cloud server with 1041 models not scanned yet, on the platform's
network model disk, GET /anomalous/scan_summary took 79 s, each time the
page opened, and the page stayed blank meanwhile: it read each new
model's header (for "looks like no drawing model") one after another.
The headers are now read 16 at a time (HEAD_READERS) and through
get_metadata, whose cache keeps each answer until the file changes, so
the page opened again reads none of them and the picker after it finds
them there. Opened afresh, a count slower than 400 ms shows "Counting
your models…" instead of a blank page.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
