
Implementing Network-Level Rate Limiting with eBPF and Go: A Deep Dive into Kernel-Space Traffic Control
Why Your User Space Rate Limiter Is Probably Crying If you’ve ever tried to implement rate limiting in user space, you know the feeling. Packets arrive at the network interface, traverse through several kernel layers, bounce around in syscall overhead, and by the time your beautifully crafted rate limiting logic gets a chance to inspect them, you’ve already lost the performance battle. It’s like trying to stop a tsunami with a garden hose while wearing roller skates....
