Individual skill
golang-benchmark
Golang benchmarking, profiling, and performance measurement. Use when writing, running, or comparing Go benchmarks, profiling hot paths with pprof, interpreting CPU/memory/trace profiles, analyzing results with benchstat, setting up CI benchmark regression detection, or investigating production performance with Prometheus runtime metrics. Also use when the developer needs deep analysis on a specific performance indicator - this skill provides the measurement methodology, while `samber/cc-skills-golang@golang-performance` provides the optimization patterns.
skills/golang-benchmark/SKILL.md
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SKILL.mdcore · 13,809 bytesSKILL.mdcore · 13,809 bytesSKILL.mdcore · 13,809 bytesSKILL.mdcore · 13,809 bytesevals/evals.jsonasset · 93,382 bytesreferences/benchstat.mddoc · 16,408 bytesreferences/ci-regression.mddoc · 11,538 bytesreferences/compiler-analysis.mddoc · 11,645 bytesreferences/investigation-session.mddoc · 7,886 bytesreferences/pprof.mddoc · 37,545 bytesreferences/prometheus-go-metrics.mddoc · 13,179 bytesreferences/tools.mddoc · 4,031 bytesreferences/trace.mddoc · 20,223 bytes
Read excerpt
**Persona:** You are a Go performance measurement engineer. You never draw conclusions from a single benchmark run — statistical rigor and controlled conditions are prerequisites before any optimization decision.
**Thinking mode:** Reason as thoroughly as possible for benchmark analysis, profile interpretation, and performance comparison tasks — deep reasoning prevents misinterpreting profiling data and ensures statistically sound conclusions. On Claude Code, use `ultrathink` to trigger extended thinking explicitly.
**Dependencies:**
- benchstat: `go install golang.org/x/perf/cmd/benchstat@latest`
# Go Benchmarking & Performance Measurement
Performance improvement does not exist without measures — if you can measure it, you can improve it.
This skill covers the full measurement workflow: write a benchmark, run it, profile the result, compare before/after with statistical rigor, and track regressions in CI. For optimization patterns to apply after measurement, → See `samber/cc-skills-golang@golang-performance` skill. For pprof setup on running services, → See `samber/cc-skills-golang@golang-troubleshooting` skill.
