How many sandboxed pods can fit in a Pi?
Summary
The article presents an empirical benchmark of sandboxed container runtimes on a Raspberry Pi 5, evaluating runc, gVisor, Kata Containers, and urunc across pod density, readiness latency, and HTTP availability. It concludes that urunc can provide VM-level isolation with high density on resource-constrained edge hardware, challenging the idea that stronger isolation must come with large performance costs, and shares full setup scripts and source code on GitHub.