nodejs 获取windows cpu、gpu和内存使用情况

获取系统cpu、gpu和内存使用情况

const nodeCMD = require('node-cmd');
const os = require('os-utils');

const serverInfo = {
	cpuUsage: 0,
	gpuUsage: 0,
	freeMem: 0,
	totalMem: 0
}

/**
 * 获取系统内存情况
 */
function getMem() {
	serverInfo.freeMem = os.freemem()
	serverInfo.totalMem = os.totalmem()
}

/**
 * 获取系统cpu利用率
 */
async function getCPUUsage() {
	let promise = new Promise((resolve, reject) => {
		os.cpuUsage(function(v){
			resolve(v)
		});
	});
	
	serverInfo.cpuUsage = await promise
}

/**
 * 获取系统gpu(nvidia)利用率
 */
async function getGPUUsage() {
	let promise = new Promise(resolve => {
		nodeCMD.get('nvidia-smi -q -d UTILIZATION', (e, b, c) => {
			if (!e) {
				let a = b.split('\r\n').find(s => s.indexOf('Gpu') >= 0 && s.indexOf('%') >= 0)
				let start = a.indexOf(':') 2
				let end = a.indexOf('%')-1
				let ss = a.substring(start, end)
				resolve(ss)
			}
		})
	})
	serverInfo.gpuUsage = await promise
}


setInterval(() => {
	getCPUUsage()
	getGPUUsage()
	getMem()
}, 8000)

module.exports = serverInfo

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