如何获得多核系统上的CPU使用率

Question

How to know the CPU usage in percentage on multi core system. I tried the below sample code using os npm but it does not return the result what I am actually looking into it. I am expecting the result something similar to linux top command. Any help on this will be helpful.

setInterval(function() {

    os.cpuUsage(function(v){
        console.log( 'CPU Usage (%): ' + v );
    });

}, 1000 );

Answer 1

Package os-utils is only an API to get some data from the system, you should build your interface using it to obtain something like a top command in Linux.

Instead if you want something ready to be used you can take a look at vtop package that does exactly what you need.

sudo npm install -g vtop

vtop