1. 系统性能数据gopsutil库

    psutil是一个跨平台进程和系统监控的Python库，而gopsutil是其Go语言版本的实现。本文介绍了它的基本使用。

    CPU

    采集CPU相关信息。

    3. // cpu info
    4. func getCpuInfo() {
    5.     cpuInfos, err := cpu.Info()
    6.     if err != nil {
    7.         fmt.Printf("get cpu info failed, err:%v", err)
    8.     }
    9.     for _, ci := range cpuInfos {
    10.         fmt.Println(ci)
    11.     }
    12.     // CPU使用率
    13.     for {
    14.         percent, _ := cpu.Percent(time.Second, false)
    15.         fmt.Printf("cpu percent:%v\n", percent)
    16.     }
    17. }
    1. import "github.com/shirou/gopsutil/load"
    3. func getCpuLoad() {
    4.     fmt.Printf("%v\n", info)
    5. }

    Memory

    Host

    1. import "github.com/shirou/gopsutil/host"
    3. // host info
    4. func getHostInfo() {
    6.     fmt.Printf("host info:%v uptime:%v boottime:%v\n", hInfo, hInfo.Uptime, hInfo.BootTime)
    7. }

    Disk

    1. import "github.com/shirou/gopsutil/disk"
    3. // disk info
    4. func getDiskInfo() {
    5.     parts, err := disk.Partitions(true)
    6.     if err != nil {
    7.         fmt.Printf("get Partitions failed, err:%v\n", err)
    8.         return
    9.     }
    10.     for _, part := range parts {
    11.         fmt.Printf("part:%v\n", part.String())
    12.         diskInfo, _ := disk.Usage(part.Mountpoint)
    13.         fmt.Printf("disk info:used:%v free:%v\n", diskInfo.UsedPercent, diskInfo.Free)
    14.     }
    16.     ioStat, _ := disk.IOCounters()
    17.     for k, v := range ioStat {
    18.         fmt.Printf("%v:%v\n", k, v)
    19.     }
    20. }

    net IO

    获取本机IP的两种方式

    1.     addrs, err := net.InterfaceAddrs()
    2.     if err != nil {
    3.         return
    5.     for _, addr := range addrs {
    6.         ipAddr, ok := addr.(*net.IPNet)
    7.         if !ok {
    8.             continue
    9.         }
    10.         if ipAddr.IP.IsLoopback() {
    11.             continue
    12.         }
    13.         if !ipAddr.IP.IsGlobalUnicast() {
    14.             continue
    15.         }
    16.         return ipAddr.IP.String(), nil
    17.     }
    18.     return
    19. }

    或：

    1. // Get preferred outbound ip of this machine
    2. func GetOutboundIP() string {
    3.     conn, err := net.Dial("udp", "8.8.8.8:80")
    4.     if err != nil {
    5.         log.Fatal(err)
    6.     }
    7.     defer conn.Close()
    9.     localAddr := conn.LocalAddr().(*net.UDPAddr)
    10.     fmt.Println(localAddr.String())