eBPF is the biggest shift in Linux observability since strace. I don’t say that lightly. I’ve spent years wiring up monitoring stacks, bolting sidecars onto every pod, and watching resource requests balloon because each workload needed its own little proxy just to get visibility into what was happening on the network. eBPF changes the game entirely — it moves instrumentation into the kernel, where it belongs, and it does it safely, efficiently, and without touching your application code.
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