nodejs查看內存的使用情況

    var showMem = function() {

         var mem = process.memoryUsage();

         var format = function(bytes) {

              return (bytes/1024/1024).toFixed(2)+'MB';

         };

         console.log('Process: heapTotal '+format(mem.heapTotal) + ' heapUsed ' + format(mem.heapUsed) + ' rss ' + format(mem.rss));

         console.log('----------------------------------------');

    };


var useMem = function () {  
     var size = 20*1024*1024;  
     var arr = new Array(size);  
     for (var i=0;i<size;i++) {  
          arr[i] = 0;  
     }  
     return arr;  
};  

var total = [];  

for (var j=0;j<15;j++) {  
     showMem();  
     total.push(useMem());  
}  
showMem();  </pre>