41 lines
1.2 KiB
TypeScript
41 lines
1.2 KiB
TypeScript
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function secNSec2ms(secNSec: Array<number>|number) {
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if (Array.isArray(secNSec)) {
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return secNSec[0] * 1000 + secNSec[1] / 1000000;
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}
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return secNSec / 1000;
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}
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class CpuTracker {
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private cpuPercent: number = 0;
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constructor() {
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let time = process.hrtime.bigint()
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let usage = process.cpuUsage()
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setInterval(() => {
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let elapTime = process.hrtime.bigint();
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let elapUsage = process.cpuUsage(usage)
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usage = process.cpuUsage()
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let elapTimeMS = elapTime - time;
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let elapUserMS = secNSec2ms(elapUsage.user)
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let elapSystMS = secNSec2ms(elapUsage.system)
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this.cpuPercent = Math.round(100 * (elapUserMS + elapSystMS) / Number(elapTimeMS) * 1000000)
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time = elapTime;
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/*console.log('elapsed time ms: ', elapTimeMS)
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console.log('elapsed user ms: ', elapUserMS)
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console.log('elapsed system ms:', elapSystMS)
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console.log('cpu percent: ', this.cpuPercent)*/
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}, 500);
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}
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public getCpuPercent(): number {
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return this.cpuPercent;
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}
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}
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const cpuTracker = new CpuTracker();
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export { cpuTracker };
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