Performance Benchmark

Drag the slider and give your machine more work: every particle is simulated in C++ compiled to WebAssembly and drawn by your GPU, and the panel reports the median and 95th-percentile frame time rather than an average frame rate, because an average hides exactly the stutter you would want to know about.

Underneath it is a second, separate reading: what our server spent building this page, taken from the Server-Timing header this site puts on every response. The two numbers describe different computers doing different jobs and are never added together — a fast visitor machine should not be able to flatter a slow server, which is the whole reason they are labelled apart.