libcbench

Documentation

Overview

libcbench compares llvm libc benchmark results using benchstat.

For details of libc benchmarking see: https://github.com/llvm/llvm-project/tree/main/libc/benchmarks

Usage:

go install golang.org/x/perf/cmd/benchstat@latest
go install github.com/dvyukov/libcbench@latest

libcbench [benchstat flags] baseline.json experiment.json

                 │  baseline   │              experiment            │
                 │   sec/op    │   sec/op     vs base               │
memmove/Google_A   3.910n ± 0%   3.885n ± 0%  -0.66% (p=0.008 n=50)