FastVM – MicroVMs that sleep on idle and wake when packets arrive
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Ranked by a public rubric, not by votes: what a comment adds counts, not who wrote it. How comments are ranked · Comment rules
Summary
FastVM is an open-source, single-host sandbox runtime built in Go on Firecracker/KVM that boots micro-VMs in about 100 ms, pauses and pages their memory to disk when idle, and wakes them when a network packet arrives.