49 lines
1.2 KiB
JavaScript
49 lines
1.2 KiB
JavaScript
var os = require("os");
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//Create function to get CPU information
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function cpuAverage() {
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//Initialise sum of idle and time of cores and fetch CPU info
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var totalIdle = 0, totalTick = 0;
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var cpus = os.cpus();
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//Loop through CPU cores
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for(var i = 0, len = cpus.length; i < len; i++) {
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//Select CPU core
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var cpu = cpus[i];
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//Total up the time in the cores tick
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for(type in cpu.times) {
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totalTick += cpu.times[type];
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}
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//Total up the idle time of the core
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totalIdle += cpu.times.idle;
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}
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//Return the average Idle and Tick times
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return {idle: totalIdle / cpus.length, total: totalTick / cpus.length};
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}
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//Grab first CPU Measure
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var startMeasure = cpuAverage();
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//Set delay for second Measure
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setInterval(function() {
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//Grab second Measure
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var endMeasure = cpuAverage();
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//Calculate the difference in idle and total time between the measures
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var idleDifference = endMeasure.idle - startMeasure.idle;
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var totalDifference = endMeasure.total - startMeasure.total;
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//Calculate the average percentage CPU usage
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var percentageCPU = 100 - ~~(100 * idleDifference / totalDifference);
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//Output result to console
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console.log(new Date(),'CPU : ' + percentageCPU + "%");
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}, 1000);
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