~/talk

A Practical, Research‑Backed Introduction To Cloud‑Native Kernel‑Bypass Networking

Talkat KubeCon + CloudNativeCon Japan 2026 · 2026-07-29..07-30· [networking]
links:none on file
slides:none on file

Baseline Linux TCP networking tops at 0.6–0.7 MPPS with iperf3 on 10Gb links while a user‑space path using DPDK and testpmd hits 10Gb line rate at 64B frames; a user‑space TCP stack (lwIP or the new IAP) with memcached shows large gains and IAP reaches ~70M RPS on 32 cores versus 4.8M RPS for Linux. Vhost user reaches ~20–50M PPS, SR‑IOV attains line rate, and Kubernetes integration options are secondary NICs, extending CNIs, or new CNI plugins.

AI-written summary · about

  1. 0:00Introduction
  2. 1:07High-speed networks underutilize potential
  3. 5:00Kernel bypass basics and DPDK
  4. 8:57User-space TCP/IP stacks
  5. 11:02Benchmarking kernel bypass TCP/IP
  6. 15:14Summary of kernel bypass benefits
  7. 15:35Container networking challenges
  8. 18:02Kernel bypass container setup
  9. 21:34SR-IOV hardware virtualization
  10. 22:59Summary of container kernel bypass
  11. 23:20Cloud-native kernel bypass in Kubernetes
  12. 27:14Feasibility and future of cloud-native bypass
  13. 28:08Q&A
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