HowCurio practice material

A tab can hold memory while doing almost no work

This page makes a bounded, deliberate workload. Nothing runs until you click. Open Chrome's Task Manager with Shift+Esc and find the row with this page title. Use a spare tab without personal work.

Idle. Array entries: 0. CPU pulse: stopped.

The array has 500,000 numeric entries. Its browser overhead is not a promised number of megabytes. The CPU pulse deliberately keeps this tab busy for about 2 seconds and then stops. Do not repeat it on a struggling device.

Disposable unsaved text

Type a few disposable words to see what survives a reload. Nothing is saved.

Closing, reloading or ending this tab's process can discard the text. The browser controls garbage collection; clicking Release only drops the page's reference. A footprint reading need not immediately return to its starting value.

This original file has no analytics, external resources, network calls, downloads, storage writes or timers that continue running. You can save it and open it locally. It is not a Chrome Task Manager screenshot or a performance benchmark.