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。
Go语言部署简单、性能好的特点非常适合做一些诸如采集系统信息和监控的服务，本文介绍的gopsutil库是知名Python库：psutil的一个Go语言版本的实现。
gopsutils为我们屏蔽了各个系统之间的差异, 具有非常强悍的可移植性, 有了gopsutil, 我们不再需要针对不同的系统使用syscall调用对应的系统方法, 更棒的是gopsutil的实现中没有任何cgo的代码, 使得交叉编译成为可能.
安装 go get github.com/shirou/gopsutil 功能gopsutil将不同的功能划分到不同的子包中
/* cpu: CPU相关 disk: 磁盘相关 docker: docker相关 host: 主机相关 mem: 内存相关 net: 网络相关 process: 进程相关 */ CPU 采集CPU相关信息 package main import ( "fmt" "github.com/shirou/gopsutil/cpu" "time" ) // cpu info func getCpuInfo() { cpuInfos, err := cpu.Info() if err != nil { fmt.Printf("get cpu info failed, err:%v", err) } for _, ci := range cpuInfos { fmt.Println(ci) } // CPU使用率 for { percent, _ := cpu.Percent(time.Second, false) fmt.Printf("cpu percent:%v\n", percent) } } func main() { getCpuInfo() } go run ps.go {"cpu":0,"vendorId":"GenuineIntel","family":"6","model":"142","stepping":10,"physicalId":"","coreId":"","cores":4,"modelName":"Intel(R) Core(TM) i5-8257U CPU @ 1.40GHz","mhz":1400,"cacheSize":256,"flags":["fpu","vme","de","pse","tsc","msr","pae","mce","cx8","apic","sep","mtrr","pge","mca","cmov","pat","pse36","clfsh","ds","acpi","mmx","fxsr","sse","sse2","ss","htt","tm","pbe","sse3","pclmulqdq","dtes64","mon","dscpl","vmx","est","tm2","ssse3","fma","cx16","tpr","pdcm","sse4.1","sse4.2","x2apic","movbe","popcnt","aes","pcid","xsave","osxsave","seglim64","tsctmr","avx1.0","rdrand","f16c","rdwrfsgs","tsc_thread_offset","sgx","bmi1","avx2","smep","bmi2","erms","invpcid","fpu_csds","mpx","rdseed","adx","smap","clfsopt","ipt","mdclear","tsxfa","ibrs","stibp","l1df","ssbd","syscall","xd","1gbpage","em64t","lahf","lzcnt","prefetchw","rdtscp","tsci"],"microcode":""} cpu percent:[10.099750623570355] cpu percent:[7.615480649005255] 获取CPU负载消息 package main import ( "fmt" "github.com/shirou/gopsutil/load" ) func getCpuLoad() { info, _ := load.Avg() fmt.Printf("%v\n",info) } func main() { getCpuLoad() } go run ps.go {"load1":2.591796875,"load5":2.86572265625,"load15":2.7578125}**
Memory package main import ( "fmt" "github.com/shirou/gopsutil/mem" ) func getMemInfo() { memInfo, _ := mem.VirtualMemory() fmt.Printf("mem info:%v\n",memInfo) } func main() { getMemInfo() } go run ps.go mem info:{"total":8589934592,"available":1984147456,"used":6605787136,"usedPercent":76.9014835357666,"free":122396672,"active":1884549120,"inactive":1861750784,"wired":2657144832,"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,"hugepagesize":0} Host package main import ( "fmt" "github.com/shirou/gopsutil/host" ) func getHostInfo() { hInfo, _ := host.Info() fmt.Printf("host info:%v uptime:%v boottime:%v\n", hInfo, hInfo.Uptime, hInfo.BootTime) } func main() { getHostInfo() } go run ps.go host info:{"hostname":"youmendeMacBook-Pro.local","uptime":314216,"bootTime":1609206164,"procs":525,"os":"darwin","platform":"darwin","platformFamily":"Standalone Workstation","platformVersion":"11.1","kernelVersion":"20.2.0","kernelArch":"x86_64","virtualizationSystem":"","virtualizationRole":"","hostid":"82e2050c-5936-3d24-ad3b-ec4ec5c09e11"} uptime:314216 boottime:1609206164 Disk package main import ( "fmt" "github.com/shirou/gopsutil/disk" ) // disk info func getDiskInfo() { parts, err := disk.Partitions(true) if err != nil { fmt.Printf("get Partitions failed, err:%v\n", err) return } for _, part := range parts { fmt.Printf("part:%v\n", part.String()) diskInfo, _ := disk.Usage(part.Mountpoint) fmt.Printf("disk info:used:%v free:%v\n", diskInfo.UsedPercent, diskInfo.Free) } ioStat, _ := disk.IOCounters() for k, v := range ioStat { fmt.Printf("%v:%v\n", k, v) } } func main() { getDiskInfo() } go run ps.go part:{"device":"/dev/disk1s2s1","mountpoint":"http://www.likecs.com/","fstype":"apfs","opts":"ro,journaled,multilabel"} disk info:used:21.590916437596942 free:54644285440 part:{"device":"devfs","mountpoint":"/dev","fstype":"devfs","opts":"rw,nobrowse,multilabel"} disk info:used:100 free:0 part:{"device":"/dev/disk1s5","mountpoint":"/System/Volumes/VM","fstype":"apfs","opts":"rw,noexec,nobrowse,journaled,multilabel,noatime"} disk info:used:3.781419239013729 free:54644285440 part:{"device":"/dev/disk1s3","mountpoint":"/System/Volumes/Preboot","fstype":"apfs","opts":"rw,nobrowse,journaled,multilabel"} disk info:used:0.5894192171529189 free:54644285440 part:{"device":"/dev/disk1s6","mountpoint":"/System/Volumes/Update","fstype":"apfs","opts":"rw,nobrowse,journaled,multilabel"} disk info:used:0.0014916323547500506 free:54644285440 part:{"device":"/dev/disk1s1","mountpoint":"/System/Volumes/Data","fstype":"apfs","opts":"rw,nobrowse,journaled,multilabel"} disk info:used:76.48839834497826 free:54644285440 part:{"device":"map auto_home","mountpoint":"/System/Volumes/Data/home","fstype":"autofs","opts":"rw,nobrowse,automounted,multilabel"} disk info:used:0 free:0 disk0:{"readCount":7171236,"mergedReadCount":0,"writeCount":3480390,"mergedWriteCount":0,"readBytes":157156835328,"writeBytes":130453229568,"readTime":6791329,"writeTime":2234950,"iopsInProgress":0,"ioTime":9026279,"weightedIO":0,"name":"disk0","serialNumber":"","label":""} IO package main import ( "fmt" "github.com/shirou/gopsutil/net" ) func getNetInfo() { info, _ := net.IOCounters(true) for index, v := range info { fmt.Printf("%v:%v send:%v recv:%v\n", index, v, v.BytesSent, v.BytesRecv) } } func main() { getNetInfo() } go run ps.go 0:{"name":"lo0","bytesSent":121344185,"bytesRecv":121344185,"packetsSent":433070,"packetsRecv":433070,"errin":0,"errout":0,"dropin":0,"dropout":0,"fifoin":0,"fifoout":0} send:121344185 recv:121344185 1:{"name":"gif0","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":"stf0","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":"en3","bytesSent":14748522,"bytesRecv":8111958,"packetsSent":61122,"packetsRecv":61250,"errin":0,"errout":1394,"dropin":0,"dropout":369,"fifoin":0,"fifoout":0} send:14748522 recv:8111958 4:{"name":"ap1","bytesSent":0,"bytesRecv":0,"packetsSent":0,"packetsRecv":0,"errin":0,"errout":0,"dropin":0,"dropout":0,"fifoin":0,"fifoout":0} send:0 recv:0 5:{"name":"en0","bytesSent":2744132038,"bytesRecv":12672282198,"packetsSent":7843906,"packetsRecv":9697152,"errin":0,"errout":1194,"dropin":0,"dropout":666,"fifoin":0,"fifoout":0} send:2744132038 recv:12672282198 6:{"name":"en1","bytesSent":0,"bytesRecv":0,"packetsSent":0,"packetsRecv":0,"errin":0,"errout":0,"dropin":0,"dropout":0,"fifoin":0,"fifoout":0} send:0 recv:0 7:{"name":"en2","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":"awdl0","bytesSent":241402,"bytesRecv":0,"packetsSent":1961,"packetsRecv":0,"errin":0,"errout":0,"dropin":0,"dropout":0,"fifoin":0,"fifoout":0} send:241402 recv:0 9:{"name":"llw0","bytesSent":0,"bytesRecv":0,"packetsSent":0,"packetsRecv":0,"errin":0,"errout":0,"dropin":0,"dropout":0,"fifoin":0,"fifoout":0} send:0 recv:0 10:{"name":"utun0","bytesSent":187730,"bytesRecv":0,"packetsSent":1629,"packetsRecv":0,"errin":0,"errout":0,"dropin":0,"dropout":0,"fifoin":0,"fifoout":0} send:187730 recv:0 11:{"name":"utun1","bytesSent":187730,"bytesRecv":0,"packetsSent":1629,"packetsRecv":0,"errin":0,"errout":0,"dropin":0,"dropout":0,"fifoin":0,"fifoout":0} send:187730 recv:0 12:{"name":"en6","bytesSent":20906,"bytesRecv":6600,"packetsSent":149,"packetsRecv":60,"errin":0,"errout":0,"dropin":0,"dropout":0,"fifoin":0,"fifoout":0} send:20906 recv:6600 13:{"name":"en7","bytesSent":20906,"bytesRecv":6600,"packetsSent":149,"packetsRecv":60,"errin":0,"errout":0,"dropin":0,"dropout":0,"fifoin":0,"fifoout":0} send:20906 recv:6600 14:{"name":"bridg","bytesSent":0,"bytesRecv":0,"packetsSent":0,"packetsRecv":0,"errin":0,"errout":0,"dropin":0,"dropout":0,"fifoin":0,"fifoout":0} send:0 recv:0 15:{"name":"bridg","bytesSent":41812,"bytesRecv":12360,"packetsSent":298,"packetsRecv":120,"errin":0,"errout":0,"dropin":0,"dropout":0,"fifoin":0,"fifoout":0} send:41812 recv:12360 16:{"name":"bridg","bytesSent":41812,"bytesRecv":12360,"packetsSent":298,"packetsRecv":120,"errin":0,"errout":0,"dropin":0,"dropout":0,"fifoin":0,"fifoout":0} send:41812 recv:12360