benchmarking

Go benchmarks are written using the standard `testing` package by creating functions prefixed with Benchmark. This Skill provides examples for creating these functions to measure performance and identify memory allocation issues in critical code paths.

Run Go benchmarks from the command line using specific flags to enable memory profiling and execute multiple runs. This Skill shows how to apply these execution options to systematically analyze your application's performance.

Interpreting Go benchmark output involves reading the execution time and memory allocation metrics provided by the `testing` package. This Skill explains how to analyze these results and use tools like `benchstat` for comparing algorithm efficiency.

Yes, this benchmarking approach identifies memory allocation issues in Go applications by measuring performance during systematic benchmarking. You apply it to critical code paths to detect and resolve performance bottlenecks related to memory usage.

The best way to ensure performance hasn't degraded is to write, run, and analyze Go benchmarks for the modified function. This Skill facilitates performance measurement by comparing results before and after your changes using standard `testing` conventions.