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import {CPU_OVERHEAT_THRESHOLD} from "../Enum/EnvironmentVariable";
function secNSec2ms(secNSec: Array<number>|number) {
if (Array.isArray(secNSec)) {
return secNSec[0] * 1000 + secNSec[1] / 1000000;
}
return secNSec / 1000;
}
class CpuTracker {
private cpuPercent: number = 0;
private overHeating: boolean = false;
constructor() {
let time = process.hrtime.bigint()
let usage = process.cpuUsage()
setInterval(() => {
const elapTime = process.hrtime.bigint();
const elapUsage = process.cpuUsage(usage)
usage = process.cpuUsage()
const elapTimeMS = elapTime - time;
const elapUserMS = secNSec2ms(elapUsage.user)
const elapSystMS = secNSec2ms(elapUsage.system)
this.cpuPercent = Math.round(100 * (elapUserMS + elapSystMS) / Number(elapTimeMS) * 1000000)
time = elapTime;
if (!this.overHeating && this.cpuPercent > CPU_OVERHEAT_THRESHOLD) {
this.overHeating = true;
console.warn('CPU high threshold alert. Going in "overheat" mode');
} else if (this.overHeating && this.cpuPercent <= CPU_OVERHEAT_THRESHOLD) {
this.overHeating = false;
console.log('CPU is back to normal. Canceling "overheat" mode');
}
/*console.log('elapsed time ms: ', elapTimeMS)
console.log('elapsed user ms: ', elapUserMS)
console.log('elapsed system ms:', elapSystMS)
console.log('cpu percent: ', this.cpuPercent)*/
}, 100);
}
public getCpuPercent(): number {
return this.cpuPercent;
}
public isOverHeating(): boolean {
return this.overHeating;
}
}
const cpuTracker = new CpuTracker();
export { cpuTracker };