shoenig/go-m1cpu

# m1cpu [](https://pkg.go.dev/github.com/shoenig/go-m1cpu) [](https://github.com/shoenig/go-m1cpu/blob/main/LICENSE) [](https://github.com/shoenig/go-m1cpu/actions/workflows/ci.yaml) The `go-m1cpu` module is a library for inspecting Apple Silicon CPUs in Go. Use the `m1cpu` Go package for looking up the CPU frequency for Apple M1 and M2 CPUs. # Install go get github.com/shoenig/go-m1cpu@latest # CGO This package requires the use of [CGO](https://go.dev/blog/cgo). Extracting the CPU properties is done via Apple's [IOKit](https://developer.apple.com/documentation/iokit?language=objc) framework, which is accessible only through system C libraries. # Example Simple Go program to print Apple Silicon M1/M2 CPU speeds. package main import ( "fmt" "github.com/shoenig/go-m1cpu" ) func main() { fmt.Println("Apple Silicon", m1cpu.IsAppleSilicon()) fmt.Println("pCore GHz", m1cpu.PCoreGHz()) fmt.Println("eCore GHz", m1cpu.ECoreGHz()) fmt.Println("pCore Hz", m1cpu.PCoreHz()) fmt.Println("eCore Hz", m1cpu.ECoreHz()) } Using `go test` to print out available information. ➜ go test -v -run Show === RUN Test_Show cpu_test.go:42: pCore Hz 3504000000 cpu_test.go:43: eCore Hz 2424000000 cpu_test.go:44: pCore GHz 3.504 cpu_test.go:45: eCore GHz 2.424 cpu_test.go:46: pCore count 8 cpu_test.go:47: eCoreCount 4 cpu_test.go:50: pCore Caches 196608 131072 16777216 cpu_test.go:53: eCore Caches 131072 65536 4194304 --- PASS: Test_Show (0.00s) # License Open source under the [MPL](LICENSE)

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