While a plugin's update() runs it holds the plugin's lock and its frames are skipped -- on a scroller, a frozen strip -- with nothing logged. The high-FPS loop now times each run of skipped frames (report_hold=True); one of 250 ms or more logs 'Display of X held N ms by its update()' (rate-limited per plugin) and is recorded as a 'display hold' busy skip, which never touches the circuit breaker. The 1 Hz loop is left out: one skipped frame there measures the loop interval on a screen that did not visibly freeze (seen on ledpi as ~1000 ms reports on clock-simple and switch-mode football).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
