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Go's .gopclntab Secret: Why eBPF Profilers Love Go, Hate Everything Else

Stripped Go binaries? Still 15% symbols via .gopclntab. eBPF profilers feast. C++? Hex purgatory.

DevTools Feed Apr 03, 2026 3 min read
Flame graph from symbolized Go stack trace in OpenTelemetry eBPF profiler

⚡ Key Takeaways

  • Go's .gopclntab enables on-target symbolization in eBPF—no server hacks needed.
  • OpenTelemetry eBPF profiler shines on Go, struggles elsewhere without extras.
  • Strip your Go binaries confidently; profiling stays pristine.
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#Go profiling #OpenTelemetry eBPF #flame graphs #symbolization

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Originally reported by Grafana Blog

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