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October 31 - November 1
Lyon Convention Centre - Lyon, France
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Thursday, October 31 • 14:45 - 15:15
virtio-vsock in QEMU, Firecracker and Linux: Status, Performance and Challenges - Andra Paraschiv, Amazon Web Services & Stefano Garzarella, Red Hat

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The virtio-vsock device provides a zero-configuration communication
channel between guest agents and hypervisor services independent of the
guest network configuration. QEMU and the Linux kernel have virtio-vsock
vhost support. Firecracker is a new open source Virtual Machine Monitor
(VMM) that makes use of KVM and includes support for virtio-vsock.

Andra will give an intro on the state of the art of virtio-vsock and its
use cases. She will then present multiple proposed options for
communication channels between a virtual machine and the host or between
virtual machines using Firecracker. These options include the vhost
backend as well as UNIX domain sockets. She will share performance
metrics with regard to the discussed alternatives.

Stefano will describe the latest performance improvements within the
Linux kernel and QEMU. He will also give an overview of tools that
recently added vsock support (e.g. wireshark, tcpdump, iproute2-ss,
ncat). Finally, he will present the next challenges that will be faced
to improve virtio-vsock, such as support for nested VMs and network

avatar for Stefano Garzarella

Stefano Garzarella

Senior Software Engineer, Red Hat
Stefano is a Senior Software Engineer at Red Hat. He is working on virtualization and networking topics in QEMU and Linux kernel. He is a co-maintainer of Linux's virtio-vsock. Current projects cover virtio-vsock, QEMU network and storage, and lightweight VMs.
avatar for Andra Paraschiv

Andra Paraschiv

Software Development Engineer, Amazon Web Services
Andra is a Software Development Engineer at Amazon Development Center, Romania, Bucharest, part of Amazon Web Services (AWS). She has been working on the virtualization stack of EC2, both on Xen and Nitro hypervisors. Before AWS, she was a Software Engineer at Intel, focusing on research... Read More →

Thursday October 31, 2019 14:45 - 15:15 CET
Forum 3
  KVM Forum Track 2
  • Session Slides Included YES