gopsutils Sistem Informasi Library

Repositori: shirou/gopsutil: psutil for golang (github.com)

Dokumentasi: gopsutil package - github.com/shirou/gopsutil/v3 - Go Packages

Dalam pengembangan program seringkali perlu获取 informasi sistem yang diizinkan oleh platform program proses ini melibatkan pemanggilan sistem dari berbagai sistem operasi untuk melakukan adaptasi diperlukan banyak pekerjaan dan waktu sedangkan gopsutils adalah library sistem informasi yang dikembangkan dengan bahasa Go mendukung banyak sistem operasi populer di level底层 saat ini mendukung arsitektur sistem berikut:

• FreeBSD i386/amd64/arm
• Linux i386/amd64/arm(raspberry pi)
• Windows i386/amd64/arm/arm64
• Darwin amd64/arm64
• OpenBSD amd64 (Terima kasih @mpfz0r!)
• Solaris amd64 (dikembangkan dan diuji pada SmartOS/Illumos Terima kasih @jen20!)

Sebagian dukungan:

• CPU di DragonFly BSD
• host di Linux RISC-V

Dan tool ini juga mendukung获取 informasi sistem container Docker.

Instalasi

Instal dengan perintah go get

go get github.com/shirou/gopsutil/v3

TIP

Penulis menulis artikel ini di sistem Win10 sistem yang berbeda akan menghasilkan output yang berbeda.

Host

API terkait host disediakan oleh package host适配 untuk berbagai sistem operasi.

Informasi

func Info() (*InfoStat, error)

func main() {
  info, _ := host.Info()
  JsonPrint(info)
}

{
  "hostname": "LAPTOP-8C92S0HL",
  "uptime": 490854,
  "bootTime": 1683909241,
  "procs": 195,
  "os": "windows",
  "platform": "Microsoft Windows 10 Home China",
  "platformFamily": "Standalone Workstation",
  "platformVersion": "10.0.19044.2251 Build 19044.2251",
  "kernelVersion": "10.0.19044.2251 Build 19044.2251",
  "kernelArch": "x86_64",
  "virtualizationSystem": "",
  "virtualizationRole": "",
  "hostId": "ba697a8c-c555-4329-905c-adc6cb650dde"
}

API lainnya di package ini adalah dekomposisi dari Info() tidak akan ditampilkan lagi silakan pelajari sendiri.

CPU

Informasi terkait CPU disediakan oleh package cpu terutama menyediakan 4 fungsi untuk获取 informasi CPU jumlah core penggunaan rate time slice output dalam format JSON akan lebih ramah untuk observasi.

Informasi

func Info() ([]InfoStat, error)

func main() {
  info, _ := cpu.Info()
  JsonPrint(info)
}

[
  {
    "cpu": 0,
    "vendorId": "GenuineIntel",
    "family": "198",
    "model": "",
    "stepping": 0,
    "physicalId": "BFEBFBFF000806EC",
    "coreId": "",
    "cores": 8,
    "modelName": "Intel(R) Core(TM) i7-8565U CPU @ 1.80GHz",
    "mhz": 1992,
    "cacheSize": 0,
    "flags": [],
    "microcode": ""
  }
]

Jumlah Core

func Counts(logical bool) (int, error)

func main() {
   cores, _ := cpu.Counts(true)
   JsonPrint(cores)
}

8

Penggunaan Rate

func Percent(interval time.Duration, percpu bool) ([]float64, error)

func main() {
   percents, _ := cpu.Percent(time.Second*5, true)
   JsonPrint(percents)
}

[
  4.643962848297214, 4.049844236760125, 5.607476635514018, 5.29595015576324,
  3.115264797507788, 2.803738317757009, 3.115264797507788, 2.1806853582554515
]

Time Slice

func Times(percpu bool) ([]TimesStat, error)

func main() {
  times, _ := cpu.Times(true)
  JsonPrint(times)
}

[
  {
    "cpu": "cpu0",
    "user": 250.28125,
    "system": 176.828125,
    "idle": 2537.96875,
    "nice": 0,
    "iowait": 0,
    "irq": 11.453125,
    "softirq": 0,
    "steal": 0,
    "guest": 0,
    "guestNice": 0
  },
  {
    "cpu": "cpu1",
    "user": 180.421875,
    "system": 115.078125,
    "idle": 2669.3125,
    "nice": 0,
    "iowait": 0,
    "irq": 4.125,
    "softirq": 0,
    "steal": 0,
    "guest": 0,
    "guestNice": 0
  },
  {
    "cpu": "cpu2",
    "user": 298.171875,
    "system": 143.46875,
    "idle": 2523.171875,
    "nice": 0,
    "iowait": 0,
    "irq": 2.96875,
    "softirq": 0,
    "steal": 0,
    "guest": 0,
    "guestNice": 0
  },
  {
    "cpu": "cpu3",
    "user": 234.890625,
    "system": 134.3125,
    "idle": 2595.609375,
    "nice": 0,
    "iowait": 0,
    "irq": 1.53125,
    "softirq": 0,
    "steal": 0,
    "guest": 0,
    "guestNice": 0
  },
  {
    "cpu": "cpu4",
    "user": 249.78125,
    "system": 122.609375,
    "idle": 2592.421875,
    "nice": 0,
    "iowait": 0,
    "irq": 2.25,
    "softirq": 0,
    "steal": 0,
    "guest": 0,
    "guestNice": 0
  },
  {
    "cpu": "cpu5",
    "user": 262.875,
    "system": 162.546875,
    "idle": 2539.390625,
    "nice": 0,
    "iowait": 0,
    "irq": 1.90625,
    "softirq": 0,
    "steal": 0,
    "guest": 0,
    "guestNice": 0
  },
  {
    "cpu": "cpu6",
    "user": 271.296875,
    "system": 122.40625,
    "idle": 2571.109375,
    "nice": 0,
    "iowait": 0,
    "irq": 2.125,
    "softirq": 0,
    "steal": 0,
    "guest": 0,
    "guestNice": 0
  },
  {
    "cpu": "cpu7",
    "user": 239.328125,
    "system": 104.03125,
    "idle": 2621.4375,
    "nice": 0,
    "iowait": 0,
    "irq": 1.875,
    "softirq": 0,
    "steal": 0,
    "guest": 0,
    "guestNice": 0
  }
]

Disk

Fungsi terkait disk disediakan oleh package disk sebagian dirancang untuk Linux.

Penggunaan Rate

func Usage(path string) (*UsageStat, error)

func main() {
  use, _ := disk.Usage("/")
  JsonPrint(use)
}

{
  "path": "/",
  "fstype": "",
  "total": 274152288256,
  "free": 251611193344,
  "used": 22541094912,
  "usedPercent": 8.22210715635224,
  "inodesTotal": 0,
  "inodesUsed": 0,
  "inodesFree": 0,
  "inodesUsedPercent": 0
}

Situasi Partisi

func Partitions(all bool) ([]PartitionStat, error)

func main() {
  part, _ := disk.Partitions(true)
  JsonPrint(part)
}

[
  {
    "device": "C:",
    "mountpoint": "C:",
    "fstype": "NTFS",
    "opts": ["rw", "compress"]
  },
  {
    "device": "D:",
    "mountpoint": "D:",
    "fstype": "NTFS",
    "opts": ["rw", "compress"]
  },
  {
    "device": "E:",
    "mountpoint": "E:",
    "fstype": "FAT32",
    "opts": ["rw"]
  }
]

IO

func IOCounters(names ...string) (map[string]IOCountersStat, error)

func main() {
  part, _ := disk.IOCounters("/")
  JsonPrint(part)
}

{
  "C:": {
    "readCount": 435914,
    "mergedReadCount": 0,
    "writeCount": 640313,
    "mergedWriteCount": 0,
    "readBytes": 10356509696,
    "writeBytes": 16957500928,
    "readTime": 209,
    "writeTime": 127,
    "iopsInProgress": 0,
    "ioTime": 0,
    "weightedIO": 0,
    "name": "C:",
    "serialNumber": "",
    "label": ""
  },
  "D:": {
    "readCount": 65907,
    "mergedReadCount": 0,
    "writeCount": 12141,
    "mergedWriteCount": 0,
    "readBytes": 3079766528,
    "writeBytes": 518916608,
    "readTime": 24,
    "writeTime": 7,
    "iopsInProgress": 0,
    "ioTime": 0,
    "weightedIO": 0,
    "name": "D:",
    "serialNumber": "",
    "label": ""
  }
}

Memori

API terkait memori disediakan oleh package mem

Informasi

func VirtualMemory() (*VirtualMemoryStat, error)

func main() {
  memory, _ := mem.VirtualMemory()
  JsonPrint(memory)
}

{
  "total": 17018114048,
  "available": 5477023744,
  "used": 11541090304,
  "usedPercent": 67,
  "free": 5477023744,
  "active": 0,
  "inactive": 0,
  "wired": 0,
  "laundry": 0,
  "buffers": 0,
  "cached": 0,
  "writeBack": 0,
  "dirty": 0,
  "writeBackTmp": 0,
  "shared": 0,
  "slab": 0,
  "sreclaimable": 0,
  "sunreclaim": 0,
  "pageTables": 0,
  "swapCached": 0,
  "commitLimit": 0,
  "committedAS": 0,
  "highTotal": 0,
  "highFree": 0,
  "lowTotal": 0,
  "lowFree": 0,
  "swapTotal": 0,
  "swapFree": 0,
  "mapped": 0,
  "vmallocTotal": 0,
  "vmallocUsed": 0,
  "vmallocChunk": 0,
  "hugePagesTotal": 0,
  "hugePagesFree": 0,
  "hugePagesRsvd": 0,
  "hugePagesSurp": 0,
  "hugePageSize": 0
}

Swap Memori

func SwapMemory() (*SwapMemoryStat, error)

func main() {
  memory, _ := mem.SwapMemory()
  JsonPrint(memory)
}

{
  "total": 19568250880,
  "used": 12943368192,
  "free": 6624882688,
  "usedPercent": 66.14473757196637,
  "sin": 0,
  "sout": 0,
  "pgIn": 0,
  "pgOut": 0,
  "pgFault": 0,
  "pgMajFault": 0
}

Swap Device

func SwapDevices() ([]*SwapDevice, error)

func main() {
  devices, _ := mem.SwapDevices()
  JsonPrint(devices)
}

[
  {
    "name": "C:\\pagefile.sys",
    "usedBytes": 107663360,
    "freeBytes": 2442473472
  }
]

Jaringan

Proses