js/wasmchecking cross-origin isolation…
starting…
Four bars, four workers started by the guest: each bar is that
worker's own progress line. The dot is the page's animation loop — it only
moves because the page's main thread is free while the workers compute. The
step is measured by the program itself with clock.mono_ns(), so
a slower machine does more iterations per step rather than a longer
cycle. The program runs 20 laps and then ends by itself — reload the page to
watch it again; switching tabs pauses and resumes it.
dev — the language · this page is built from
tools/threaddemo; the local stand also reports itself to a log,
this one keeps everything on screen.