As WebAssembly adoption grows, it faces a critical performance data gap, lacking the mature benchmarking tools and standardized metrics of the container ecosystem, especially regarding resource usage and sustainability. This talk introduces WasmPulse, an open-source benchmarking and metrics framework designed to fill that gap. We present hard data from our accepted IEEE CCNC 2026 paper, offering one of the first deep-dive performance analyses of the new WASI Preview 2 and wasi:http standards.

We'll show Wasm's continuous improvement by providing a deep dive into the numbers, comparing bare-metal processes, Containers, and Wasm (AOT/JIT) on key metrics: artifact size, startup time, E2E network latency, throughput, as well as CPU/Memory usage scaling under load. The results position Wasm as an efficient, performant and sustainable foundation for next-generation cloud-native platforms.