How OpenRouter and Grafana Cloud bring observability to LLM-powered applications

This article details how OpenTelemetry's eBPF profiler works under the hood to profile Go applications. It explains the complex process of translating raw CPU profiling data into human-readable flame graphs, focusing on how Go's specific characteristics (like lack of explicit function boundaries) are handled through symbolization and stack unwinding. Ultimately, it provides a technical understanding of how the profiler helps pinpoint performance bottlenecks in Go code.