rats-search/src/background/bt/cpu-usage.js
Alexey Kasyanchuk d8afce8964 web -> desktop
2018-01-31 19:02:28 +03:00

33 lines
768 B
JavaScript

let startTime = process.hrtime()
let startUsage = process.cpuUsage()
let keepTime = process.hrtime()
let keepUsage = process.cpuUsage()
let sw = false
setInterval(() => {
if(!sw) {
keepTime = process.hrtime();
keepUsage = process.cpuUsage();
sw = true;
} else {
startTime = keepTime;
startUsage = keepUsage;
sw = false;
}
}, 500)
module.exports = () => {
function secNSec2ms (secNSec) {
return secNSec[0] * 1000 + secNSec[1] / 1000000
}
var elapTime = process.hrtime(startTime)
var elapUsage = process.cpuUsage(startUsage)
var elapTimeMS = secNSec2ms(elapTime)
var elapUserMS = elapUsage.user
var elapSystMS = elapUsage.system
return Math.round(100 * ((elapUserMS + elapSystMS) / 1000) / elapTimeMS)
}