QCon London 2026: Fixing the AI Infra Scale Problem by Stuffing 1M Sandboxes in a Single Server

Unikraft CEO Felipe Huici demonstrated waking VM number one million on a commodity server in ten milliseconds at QCon London. The talk traced a decade from academic unikernel research to a platform offering stateless scale-to-zero VMs with full isolation. Using Firecracker and VM snapshots, sleeping workloads resume instantly, turning server density from a hardware problem into a scheduling one. By Steef-Jan Wiggers