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Virtual Event | September 15-16, 2021
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Wednesday, September 15 • 15:35 - 16:00
Kubevirt and the Cost of Containerizing VMs - Guoqing Li, Nara Institute of Science and Technology & Dario Faggioli, SUSE

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KubeVirt is an add-on for Kubernetes to manage both containers and VMs in a unified manner. With KubeVirt, however, Libvirt, QEMU and all the VM processes run in Kubernetes pods and this may introduce some overhead. For instance, resource usage accounting or limitation done by the container runtime, as well as longer (disk and network) IO paths might slow down KubeVirt VMs. For this talk, Guoqing Li, Dario Faggioli and Vasiliy Ulyanov will investigate the performance characteristics of VMs running in Kubernetes pods, using CPU, memory, disk and networking benchmarks and comparing that with plain KVM VMs. We will check the effect that tuning the configuration of the plain VMs has, for these benchmarks, and show whether it is possible to achieve something similar for VMs running with KubeVirt.

Speakers
avatar for Guoqing Li

Guoqing Li

Graduate Student, Nara Institute of Science and Technology
Guoqing Li is a graduate student at the Nara Institute of Science and Technology, Japan. He obtained his bachelor's degree in software engineering with first class honors at Chiang Mai University, Thailand. He contributed to the SaltStack open source project under Google's Summer... Read More →
avatar for Dario Faggioli

Dario Faggioli

Virtualization Specialist, SUSE
Dario is a Virtualization Software Engineer at SUSE. He's been active in the Open Source virtualization space for a few years. Within the Xen-Project, he is still the maintainer of the Xen hypervisor scheduler. He also works on Linux kernel, KVM, Libvirt, and QEMU. Back during his... Read More →



Wednesday September 15, 2021 15:35 - 16:00 UTC
TBA
  KVM Track 2
  • Presentation Slides Attached Yes