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The need to move more bits faster through the cloud is constantly turning up, from “day 2” challenges like migrating more workloads into Kubernetes environments, connecting multiple clusters, or simply escalating data demands from AI applications. In this talk, we discuss Cilium’s journey to achieve host-level network performance and latency for Pods. We will deep dive into changes we upstreamed to the Linux kernel and then brought to Cilium such as the new veth-replacement driver. We also take a look at new features like BIG TCP which so far have not been brought into the wider Kubernetes community. This talk is for operators that want to get the most out of their setup. While many start with the default settings for getting started on “day 1”, “day 2” challenges will often lead to seeking ways to turn the performance knob up. The audience will walk away knowing how resources can be freed up and given to the application just by tweaking software to finally reach 11 for performance.
Daniel Borkmann is co-creator of both eBPF and Cilium, a founding engineer at Isovalent, and an active contributor for over a decade to the Linux kernel’s networking and eBPF subsystem. He also co-maintains eBPF in the Linux kernel.
