servius/src/cpu.js

Servius is a comprehensive npm package for server monitoring,providing tracking of CPU load, free memory, disk usage, process count, and other important system resources. It also offers details on CPU, server uptime, last boot time, OS, disk partitions,pr

const os = require('node:os');
const shelljs = require("shelljs");

/* Returns a Object That Contains The Time Taken By Cpu To Execute a Specefic Process.
*  Ex- {
*       user: '73.80',
*       system: '0.00',
*       nice: '0.00',
*       idle: '0.00',
*       steal: '0.00'
*      }
*/

const cpuTimes = () => {
    let user = shelljs.exec(`top -bn1 | grep '^%Cpu' | awk '{printf "%.2f", $2}'`, {silent: true}).stdout.trim()
    let nice = shelljs.exec(`top -bn1 | grep '^%Cpu' | awk '{printf "%.2f", $6}'`, {silent: true}).stdout.trim()
    let sys = shelljs.exec(`top -bn1 | grep '^%Cpu' | awk '{printf "%.2f", $4}'`, {silent: true}).stdout.trim()
    let idle = shelljs.exec(`top -bn1 | grep '^%Cpu' | awk '{printf "%.2f", $8}'`, {silent: true}).stdout.trim()
    let steal = shelljs.exec(`top -bn1 | grep '^%Cpu' | awk '{printf "%.2f", $16}'`, {silent: true}).stdout.trim()
    return JSON.parse(JSON.stringify({user: user, system: sys, nice: nice, idle: idle, steal: steal}))
}

/* Returns The Number Of Logical Cpu Cores.
* Ex- 4
*/

const cpuCount = () => {
    let cores = shelljs.exec('nproc', {silent: true}).stdout
    return cores
}

/* Returns A Object Containing The Logical Cpu Information.
* Ex- {
*     name: 'Intel(R) Core(TM) i5 CPU 12400F @ 4.40GHz',
*     speed: 2826,
*     cores: 4,
*     loadAvg: [ 0.1, 0.2, 0.1]
*  }
*/

const cpu = () => {
    const cpudetail = {
        name: os.cpus()[0].model,
        speed: os.cpus()[0].speed,
        cores: os.cpus().length,
        loadAvg: os.loadavg()
    }

    return JSON.parse(JSON.stringify(cpudetail))
}

module.exports = {cpu, cpuCount, cpuTimes}