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var usage = require('usage');
var pid = process.pid // you can use any valid PID instead
usage.lookup(pid, function(err, result) {
});
{
cpu: 10.6, //in percentage
memory: 100065280 //in no of bytes
}
This is only apply for Linux
By default CPU Percentage provided is an average from the starting time of the process. It does not correctly reflect the current CPU usage. (this is also a problem with linux ps
utility)
But If you call usage.lookup()
continuously for a given pid, you can turn on keepHistory flag and you'll get the CPU usage since last time you track the usage. This reflects the current CPU usage.
see following example to enable keepHistory flag
var pid = process.pid;
var options = { keepHistory: true }
usage.lookup(pid, options, function(err, result) {
});
you can clear history cache too
usage.clearHistory(pid); //clear history for the given pid
usage.clearHistory(); //clean history for all pids
node-usage
was born to tackle on this.FAQs
simple way to lookup linux process usage
The npm package usage receives a total of 443 weekly downloads. As such, usage popularity was classified as not popular.
We found that usage demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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