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Learn how to accelerate KubeVirt networking performance using eBPF and AF_XDP technologies in this conference talk from KubeCon + CloudNativeCon. Discover an innovative architecture that leverages Cilium, netkit, and upstream Linux kernel enhancements to enable KubeVirt Pods to launch QEMU/KVM instances with high-performance AF_XDP interfaces. Explore how organizations can converge infrastructure by running virtual machines alongside containers in Kubernetes while maintaining superior networking performance for latency and throughput-sensitive workloads. Understand the technical contributions made to QEMU and the Linux kernel that enable this accelerated networking path, and see how this solution compares to default KubeVirt networking through real-world performance benchmarks. Gain insights into kernel-level optimizations, examine detailed performance analysis, and explore the future vision for implementing fast-lane VM networking without sacrificing traffic observability and policy enforcement capabilities that are typically lost with SR-IOV solutions.
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