Does the Component Model Require Extra Copying? - Luke Wagner, Fastly

Presenters Luke Wagner Source WasmCon NA 2025 WebAssembly’s Component Model: Unpacking Efficiency, Security, and the Near-Zero Copy Dream 🚀 WebAssembly (Wasm) has long been the darling of the web, promising blazing-fast performance right in our browsers. But its potential extends far beyond the browser tab! Luke Wagner from Fastly recently took us on a deep dive into the exciting evolution of WebAssembly’s Component Model, tackling a crucial question: does this new paradigm introduce more data copying, or is it paving the way for less? Get ready to explore how Wasm is becoming a powerhouse for server-side applications, cloud-native environments, and so much more, all while keeping efficiency and security at its core. ...

November 24, 2025 · 7 min