monitormem.go

monitormem.go

package main

import (
	"fmt"
	"syscall"
	"time"
)

const (
	Megabyte = 1024 * 1024
)

func main() {
	var sysinfo syscall.Sysinfo_t
	syscall.Sysinfo(&sysinfo)

	mins := fmt.Sprintf("%ds", sysinfo.Uptime)

	d, _ := time.ParseDuration(mins)
	days := int64(d.Hours()) / 24
	min := int64(d.Minutes()) % 60
	sec := int64(d.Seconds()) % 60

	fmt.Printf("System Uptime: %d days, %02d:%02d\n", days, min, sec)
	fmt.Printf("TotalMem: %d MB\n", sysinfo.Totalram/Megabyte)
	fmt.Printf("FreeMem: %d MB\n", sysinfo.Freeram/Megabyte)
	fmt.Printf("SharedMem: %d MB\n", sysinfo.Sharedram/Megabyte)
	fmt.Printf("BufferMem: %d MB\n", sysinfo.Bufferram/Megabyte)
	fmt.Printf("Totalswap: %d MB\n", sysinfo.Totalswap/Megabyte)
	fmt.Printf("Freeswap: %d MB\n", sysinfo.Freeswap/Megabyte)
	fmt.Printf("%v\n", sysinfo)
}

stathat.go

package main

import (
	"github.com/stathat/go"
	"syscall"
	"time"
)

const (
	MAIL     = "XXXX"
	Megabyte = 1024 * 1024
)

type ezMap map[string]uint64

func monitor() {
	ezs := make(ezMap)
	var sysinfo syscall.Sysinfo_t

	syscall.Sysinfo(&sysinfo)

	ezs["SharedMem"] = sysinfo.Sharedram / Megabyte
	ezs["FreeMem"] = sysinfo.Freeram / Megabyte
	ezs["BufferMem"] = sysinfo.Bufferram / Megabyte
	ezs["FreeSwap"] = sysinfo.Freeswap / Megabyte

	for key, value := range ezs {
		stathat.PostEZValue(key, MAIL, float64(value))
	}
}

func main() {
	t := time.Tick(time.Minute)
	for {
		select {
		case <-t:
			go monitor()
		}
	}
}