NetEdit: Fine-grained Network Tuning at Scale
summary
NetEdit is a BPF-based agent deployed fleetwide on 1M+ servers to apply per-service and per-connection kernel tweaks without changing the kernel. It exposes a policy engine that enables or targets features (match + action), uses audits and a PlusRadius tool for visibility, and runs features like a scavenger CCA implemented with struct_ops and sockops. Synthetic tests and an A/B rollout reclaim up to 500 Gbps of spare capacity. Engineering fixes cut sockops calls from ~20K to one per connection and add deterministic program ordering.
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chapters (9)
- 0:00NetEdit introduction
- 3:58Adopting eBPF for tuning
- 7:10NetEdit control plane
- 10:40eBPF interfaces and features
- 11:22Scavenger traffic control
- 14:38A/B test validation
- 15:21Production eBPF challenges
- 17:28Future platform updates
- 18:32Summary
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