From raw data to flame graphs: A deep dive into how the OpenTelemetry eBPF profiler symbolizes Go
Imagine you're troubleshooting a production issue: your application is slow, the CPU is spiking, and users are complaining. You turn to your profiler for answers—after all, this is exactly what it's built for. The profiler runs, collecting thousands of stack samples. eBPF profilers, including the OpenTelemetry eBPF profiler, operate at the kernel level, so they capture raw program counters: memory addresses pointing into your binary.