https://sebasblog.com/archives/2025-06/Recent content in 2025-06 on Sebastian Scheinkman - Red Hat Openshift, Networking, Kubernetes and Cloud NativeHugoen-ussebasblog.comSun, 29 Jun 2025 00:00:00 +0000https://sebasblog.com/p/unleashing-bare-metal-performance-in-kubernetes/Sun, 29 Jun 2025 00:00:00 +0000https://sebasblog.com/p/unleashing-bare-metal-performance-in-kubernetes/<h1 id="unleashing-bare-metal-performance-in-kubernetes-a-technical-deep-dive-into-the-sr-iov-network-operator"><strong>Unleashing Bare-Metal Performance in Kubernetes: A Technical Deep Dive into the SR-IOV Network Operator</strong></h1> <h2 id="i-introduction-beyond-standard-kubernetes-networking"><strong>I. Introduction: Beyond Standard Kubernetes Networking</strong></h2> <p>Standard Kubernetes networking, a cornerstone of its flexibility and portability, is primarily designed for general-purpose connectivity. It typically relies on software-based overlay networks, such as those using VXLAN, and kernel-level packet processing. While this model excels at providing seamless pod-to-pod communication and service discovery across a cluster, it introduces inherent latency and CPU overhead. For a vast majority of applications, this performance profile is more than sufficient. However, for a growing class of high-performance workloads, this software-defined approach represents a significant performance ceiling.</p>