🚀 We achieved 629 ns deterministic latency with eBPF/XDP + 5.1 GHz isolated cores
In high-frequency trading, AI training clusters, and 5G URLLC environments, every nanosecond matters.
Traditional Linux networking (iptables/nftables) adds ~5,000 ns latency with high jitter — creating expensive synchronization walls.
So we built NanoPAM (Aegis-XDP) — a transparent Layer-2 stealth bridge that moves full Privileged Access Management + token-bucket rate limiting directly into the XDP fast path.
Results on isolated 5.1 GHz cores:
- P50 (Median): 629 ns
- P99: 645 ns
- Jitter variance: < 41 ns
- ~8,000× faster than standard Netfilter
Full technical deep-dive (with architecture diagrams, benchmark tables, jitter graphs, CPU isolation details, and code) is here:
→ [Read the full story on Medium]https://medium.com/@reachshankarg/how-we-achieved-629ns-deterministic-latency-using-ebpf-xdp-and-5-1ghz-isolated-cores-90a15f3e81e1
Would love feedback from the community — especially on the XDP implementation, CPU isolation strategy, or any similar projects you're working on!
eBPF
XDP
Linux
LowLatency
HFT
AI
Kernel
Networking
Performance