This test runs inside the browser, which enforces strict memory limits (usually 2-4GB) to prevent crashes. The "Max Allocated" result shows how much memory your browser allows a single tab to use, not your total physical system RAM.
Stress-test your system's memory by rapidly allocating large data structures until performance degrades.
This test will consume up to a few Gigabytes of RAM. Your browser may become briefly unresponsive.
This test rapidly allocates large chunks of memory using Typed Arrays (`Float64Array`).
It actively writes to this memory to force your Operating System to commit physical RAM pages, rather than just virtually allocating them.
When the browser runs out of its allowed sandbox limit, or when allocation time slows down significantly (often indicating the OS is swapping memory to the hard drive), the test stops and reports the max headroom.