eBPF Map Pressure using eBPF Iterators

eBPF Map Metrics Prometheus Exporter

To my surprise, I discovered there is no straightforward method to determine the number of elements stored in an eBPF map. This got me a bit concerned — how can I ensure my eBPF Maps won’t become full and drop entries, potentially affecting application performance?

In this newsletter, I describe the various challenges I encountered while developing a so…