gopsutil使用样例

==目的==

增加对服务器使用情况的监控。

==引入==

go get github.com/shirou/gopsutil
go get github.com/yusufpapurcu/wmi

==代码==

package main

import (
    "fmt"
    "github.com/shirou/gopsutil/cpu"
    "github.com/shirou/gopsutil/disk"
    "github.com/shirou/gopsutil/host"
    "github.com/shirou/gopsutil/load"
    "github.com/shirou/gopsutil/mem"
    "github.com/shirou/gopsutil/net"
    "time"
)

func main() {
    getCpuInfo()
    getCpuLoad()
    fmt.Println("----------")
    getMemInfo()
    fmt.Println("----------")
    getHostInfo()
    fmt.Println("----------")
    getDiskInfo()
    fmt.Println("----------")
    getNetInfo()
}

func getCpuInfo() {
    cpuNumber, err := cpu.Counts(true)
    if err != nil {
        fmt.Println(err.Error())
    }
    fmt.Println(fmt.Sprintf("CPU核心数: %v", cpuNumber))

    cpuPercent, err := cpu.Percent(time.Second, true)
    if err != nil {
        fmt.Println(err.Error())
    }
    fmt.Println(fmt.Sprintf("CPU使用率: %.1f%%", cpuPercent[0]))
}

func getCpuLoad() {
    loadInfo, err := load.Avg()
    if err != nil {
        fmt.Println(err.Error())
    }
    fmt.Println(fmt.Sprintf("CPU平均负载: %v", loadInfo))
}

func getMemInfo() {
    memInfo, err := mem.VirtualMemory()
    if err != nil {
        fmt.Println(err.Error())
    }

    // 总内存(GB)
    memTotal := memInfo.Total / 1024 / 1024 / 1024
    fmt.Println(fmt.Sprintf("总内存: %v GB", memTotal))

    // 已用内存(MB)
    memUsed := memInfo.Used / 1024 / 1024
    fmt.Println(fmt.Sprintf("已用内存: %v MB", memUsed))

    // 可用内存(MB)
    memAva := memInfo.Available / 1024 / 1024
    fmt.Println(fmt.Sprintf("可用内存: %v MB", memAva))

    // 内存使用率
    memUsedPercent := memInfo.UsedPercent
    fmt.Println(fmt.Sprintf("内存使用率: %.1f%%", memUsedPercent))
}

func getHostInfo() {
    hostInfo, err := host.Info()
    if err != nil {
        fmt.Println(err.Error())
    }
    fmt.Println(fmt.Sprintf("主机名: %v", hostInfo.Hostname))
    fmt.Println(fmt.Sprintf("操作系统: %v", hostInfo.Platform))
}

func getDiskInfo() {
    diskPart, err := disk.Partitions(false)
    if err != nil {
        fmt.Println(err)
    }
    for _, dp := range diskPart {
        fmt.Println(dp)
        diskUsed, _ := disk.Usage(dp.Mountpoint)
        fmt.Println(fmt.Sprintf("分区总大小: %d MB", diskUsed.Total/1024/1024))
        fmt.Println(fmt.Sprintf("分区使用率: %.1f%%", diskUsed.UsedPercent))
        fmt.Println(fmt.Sprintf("分区inode使用率: %.1f%%", diskUsed.InodesUsedPercent))
    }
}

func getNetInfo() {
    info, _ := net.IOCounters(true)
    for index, v := range info {
        fmt.Println(fmt.Sprintf("%v:%v send:%v recv:%v", index, v, v.BytesSent, v.BytesRecv))
    }
}

==结果==

CPU核心数: 8
CPU使用率: 13.8%
CPU平均负载: {"load1":0,"load5":0,"load15":0}
----------
总内存: 31 GB
已用内存: 16078 MB
可用内存: 16462 MB
内存使用率: 49.0%
----------
主机名: RCNL5CG0519B67
操作系统: Microsoft Windows 10 Pro
----------
{"device":"C:","mountpoint":"C:","fstype":"NTFS","opts":"rw.compress"}
分区总大小: 511158 MB
分区使用率: 60.9%
分区inode使用率: 0.0%
{"device":"D:","mountpoint":"D:","fstype":"NTFS","opts":"rw.compress"}
分区总大小: 464131 MB
分区使用率: 20.3%
分区inode使用率: 0.0%
----------
0:{"name":"本地连接 2","bytesSent":5509958,"bytesRecv":21418867,"packetsSent":15311,"packetsRecv":19217,"errin":0,"errout":0,"dropin":0,"dropout":0,"fifoin":0,"fifoout":0} send:5509958 recv:21418867
1:{"name":"本地连接* 9","bytesSent":0,"bytesRecv":0,"packetsSent":0,"packetsRecv":0,"errin":0,"errout":0,"dropin":0,"dropout":0,"fifoin":0,"fifoout":0} send:0 recv:0
2:{"name":"本地连接* 10","bytesSent":0,"bytesRecv":0,"packetsSent":0,"packetsRecv":0,"errin":0,"errout":0,"dropin":0,"dropout":0,"fifoin":0,"fifoout":0} send:0 recv:0
3:{"name":"以太网 5","bytesSent":0,"bytesRecv":0,"packetsSent":0,"packetsRecv":0,"errin":0,"errout":0,"dropin":0,"dropout":0,"fifoin":0,"fifoout":0} send:0 recv:0
4:{"name":"VMware Network Adapter VMnet1","bytesSent":45086,"bytesRecv":229,"packetsSent":220,"packetsRecv":229,"errin":0,"errout":0,"dropin":0,"dropout":0,"fifoin":0,"fifoout":0} send:45086 recv:229
5:{"name":"VMware Network Adapter VMnet8","bytesSent":83522,"bytesRecv":228,"packetsSent":220,"packetsRecv":228,"errin":0,"errout":0,"dropin":0,"dropout":0,"fifoin":0,"fifoout":0} send:83522 recv:228
6:{"name":"WLAN","bytesSent":487797694,"bytesRecv":1544453142,"packetsSent":2882494,"packetsRecv":4818176,"errin":0,"errout":0,"dropin":0,"dropout":0,"fifoin":0,"fifoout":0} send:487797694 recv:1544453142
7:{"name":"以太网 4","bytesSent":0,"bytesRecv":0,"packetsSent":0,"packetsRecv":0,"errin":0,"errout":0,"dropin":0,"dropout":0,"fifoin":0,"fifoout":0} send:0 recv:0
8:{"name":"Loopback Pseudo-Interface 1","bytesSent":0,"bytesRecv":0,"packetsSent":0,"packetsRecv":0,"errin":0,"errout":0,"dropin":0,"dropout":0,"fifoin":0,"fifoout":0} send:0 recv:0

--end--