系统资源#

import osUtils from 'os-utils';
import fs from 'fs';
import os from 'os';

export async function pollResources() {
  const cpuUsage = await getCpuUsage();
  const cpuFree = await getCpuFree();
  const cpuCount = osUtils.cpuCount();
  const cpuModel = os.cpus()[0].model;
  const freemem = osUtils.freemem();
  const totalmem = osUtils.totalmem();
  const freememPercentage = osUtils.freememPercentage();
  const sysUptime = osUtils.sysUptime();
  const processUptime = osUtils.processUptime();
  const loadavg = osUtils.loadavg(1);
  const storageData = getStorageData();

  console.log({
    下一秒cpu使用率: `${cpuUsage * 100}%`,
    下一秒cpu可用率: `${cpuFree * 100}%`,
    cpu数量: cpuCount,
    cpu型号: cpuModel,
    可用内存: `${freemem / 1000} GB`,
    总内存: `${totalmem / 1000} GB`,
    可用内存百分比: `${freememPercentage * 100}%`,
    系统已运行时间: `${sysUptime} 秒`,
    进程已运行时间: `${processUptime} 秒`,
    '1分钟内平均负载': loadavg,
    系统盘大小: storageData.total,
    系统盘已使用: storageData.usage,
  });

  return {
    cpuUsage,
    cpuFree,
    cpuCount,
    freemem,
    totalmem,
    freememPercentage,
    sysUptime,
    processUptime,
    loadavg,
    storageData,
  };
}

/** @function 获取cpu使用率 */
function getCpuUsage(): Promise<number> {
  return new Promise((resolve) => {
    osUtils.cpuUsage(resolve);
  });
}

/** @function 获取cpu可用率 */
function getCpuFree(): Promise<number> {
  return new Promise((resolve) => {
    osUtils.cpuFree(resolve);
  });
}

/** @function 获取系统盘使用情况 */
function getStorageData() {
  const stats = fs.statfsSync(process.platform === 'win32' ? 'C://' : '/');
  const total = stats.blocks * stats.bsize;
  const free = stats.bfree * stats.bsize;
  return {
    total: Math.floor(total / 1024 / 1024 / 1024),
    usage: `${(1 - free / total) * 100}%`,
  };
}