An interactive visualization that follows a single HTTP request through its entire ~200ms life — DNS, TCP, TLS, the kernel, Node's event loop, Postgres, and back
200ms.thenodebook.com
Scroll through the complete life of one HTTP request in real time — from a click in a coffee shop through DNS, TCP, TLS, the kernel, Node's event loop, and Postgres, back to the pixel. Time only passes when you move. 211 ms.