WebAssembly

← Previous Chapter: Part 6 — Apache Kafka vs. NATS JetStream | Series Hub | Next Chapter: Part 8 — Redis Distributed State vs. Dapr Virtual Actors → Part 7: Modular Monolith vs. Microservices vs. SpinKube Wasm Showdown Answer-first: Modular Monoliths deliver unmatched developer velocity, zero-latency in-memory calls (~0.5ns), and local ACID transactions for small-to-medium teams. Containerized Microservices provide independent deployments and polyglot boundaries at the cost of high network serialization and memory overhead. SpinKube WebAssembly represents the next paradigm, achieving sub-millisecond cold starts, 100x container density, and 75% FinOps savings. ...

Tech Radar: WASI 0.3 & Component Model: Polyglot Cloud-Native Wasm in 2026 Answer-First: The ratification of WASI 0.3 represents a watershed architectural milestone for cloud-native systems, introducing first-class asynchronous streaming (stream<T>, future<T>) directly into the WebAssembly Component Model. Powered by Wasmtime 46+ and Cranelift ahead-of-time (AOT) compilation, server-side Wasm delivers sub-millisecond cold starts (<1ms), 1–10MB memory footprints (60% lower than V8, 95% lower than Linux containers), and nanosecond-level inter-component IPC, establishing WebAssembly as the default execution sandbox for microservices, plugin extensions, and edge compute. ...