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loki/vendor/github.com/tklauser/numcpus
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fix(deps): update module github.com/influxdata/telegraf to v1.33.0 (#15456) 		1 year ago
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LICENSE
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README.md
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numcpus.go
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numcpus_bsd.go
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numcpus_solaris.go
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numcpus_windows.go
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README.md

numcpus

Go Reference GitHub Action Status

Package numcpus provides information about the number of CPUs in the system.

It gets the number of CPUs (online, offline, present, possible, configured or kernel maximum) on Linux, Darwin, FreeBSD, NetBSD, OpenBSD, DragonflyBSD or Solaris/Illumos systems.

On Linux, the information is retrieved by reading the corresponding CPU topology files in /sys/devices/system/cpu.

On BSD systems, the information is retrieved using the hw.ncpu and hw.ncpuonline sysctls, if supported.

Not all functions are supported on Darwin, FreeBSD, NetBSD, OpenBSD, DragonflyBSD and Solaris/Illumos. ErrNotSupported is returned in case a function is not supported on a particular platform.

Usage

package main

import (
	"fmt"
	"os"

	"github.com/tklauser/numcpus"
)

func main() {
	online, err := numcpus.GetOnline()
	if err != nil {
		fmt.Fprintf(os.Stderr, "GetOnline: %v\n", err)
	}
	fmt.Printf("online CPUs: %v\n", online)

	possible, err := numcpus.GetPossible()
	if err != nil {
		fmt.Fprintf(os.Stderr, "GetPossible: %v\n", err)
	}
	fmt.Printf("possible CPUs: %v\n", possible)
}

References