Quiero obtener información sobre el uso de la CPU. Usé la función setTimeout para obtener la información.

Cuando uso let result = getCPUUsage() la consola muestra

getCPUUsage()>> Promise { <pending> }

entonces si hago la línea como let result = await getCPUUsage() , entonces la consola emitió un error y mostró

SyntaxError: await is only valid in async function

Quiero hacer ese result valioso como JSON {avg:<0~100>}. ¿Podría decirme cómo obtener datos JSON resueltos de Promise y hacer que el result sea el JSON resuelto?

 const os = require("os"); let result = getCPUUsage() // or >> let result = await getCPUUsage() console.log('getCPUUsage()>>', result) //Create function to get CPU information function cpuAverage() { //Initialise sum of idle and time of cores and fetch CPU info let totalIdle = 0, totalTick = 0; let cpus = os.cpus(); //Loop through CPU cores for(let i = 0, len = cpus.length; i < len; i++) { //Select CPU core let cpu = cpus[i]; //Total up the time in the cores tick for(type in cpu.times) { totalTick += cpu.times[type]; } //Total up the idle time of the core totalIdle += cpu.times.idle; } //Return the average Idle and Tick times return {idle: totalIdle / cpus.length, total: totalTick / cpus.length}; } // fetch cpu info function getCPUUsage() { return new Promise(async (resolve, reject) => { let data = {avg : 0} try { //Grab first CPU Measure let startMeasure = cpuAverage(); //Set delay for second Measure const wait = ms => new Promise(resolve => setTimeout(resolve = () =>{ //Grab second Measure let endMeasure = cpuAverage(); //Calculate the difference in idle and total time between the measures let idleDifference = endMeasure.idle - startMeasure.idle; let totalDifference = endMeasure.total - startMeasure.total; //Calculate the average percentage CPU usage percentageCPU = 100 - ~~(100 * idleDifference / totalDifference); }, ms)); await wait(100) console.log(percentageCPU + "% CPU Usage."); data.avg = percentageCPU resolve(data) } catch (e) { console.log('getCPUUsage error:', e); resolve(false); } }) }