Xen Project Developer and Design Summit 2021

In the past year, the Unikraft Xen Incubation Project has taking a major leap. In this talk, we will give an update of all the activities that have taken place, including (1) a major effort to transparently support off-the-shelf applications via binary compatibility and musl support; (2) ongoing integration efforts with orchestration frameworks such as Kubernetes; (3) significant improvements to performance (e.g., our evaluation using off-the-shelf applications such as nginx, SQLite, and Redis shows that running them on Unikraft results in a 1.7x-2.7x performance improvement compared to Linux guests); (4) important performance improvements to Unikraft's Xen netfront driver; and (5) ongoing efforts that allow Unikraft to comparmentalize each of its libraries and thus build security-hardened images.