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Light Sleep: Waking VMs in 200ms with eBPF and snapshots


Discover how we built Scale-to-Zero to automatically wake VMs in 200ms with eBPF, light sleep, and snapshots.

You push code or containers; we handle everything from build to global deployment, running workloads in secure, lightweight virtual machines on bare-metal servers around the world. To get there, during the last months, we had to rethink how we deploy apps, rewire how the network stack behaves when nothing is running, add snapshotting, lean heavily on some eBPF tricks, and work around a bunch of uncommon issues along the way. With snapshotting and eBPF, Scale-to-Zero is now live in public preview on Koyeb, delivering near-instant wakeups and eliminating wasted compute when apps are idle, all without breaking the developer experience.

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