Use top for getting correct CPU usage.

lib/remote.js

@@ -5,13 +5,21 @@ var fs         = require('fs'),
 var debugging  = process.env.DEBUG,
     debug      = debugging ? console.log : function() { /* noop */ };
 
-var get_key = function(file) {
-  var file = file || join(process.env.HOME, '.ssh', 'id_rsa');
-  return fs.readFileSync(file);
+var get_key = function() {
+  var keys = ['id_rsa', 'id_dsa'];
+
+  for (var i in keys) {
+    var file = join(process.env.HOME, '.ssh', keys[i]);
+    if (fs.existsSync(file))
+      return fs.readFileSync(file);
+  }
 }
 
+var processes = 'ps aux | awk \'{print $3 " " $4 " " $11 " "$12}\' | sort -n | tail -10';
+
 var usage = {
-  cpu  : "grep 'cpu ' /proc/stat | awk '{ print ($2+$4)*100/($2+$4+$5) \"%\" }'",
+  // cpu  : "grep 'cpu ' /proc/stat | awk '{ print ($2+$4)*100/($2+$4+$5) \"%\" }'",
+  cpu  : "top -bn 2 -d 0.3 | grep '^%\\?Cpu.s.' | tail -1 | awk '{print $2+$4+$6 \"%\"}'",
   ram  : "free | egrep 'Mem|buffers' | tr -d '\\n' | awk '{print $14*100/$7 \"%\"}'",
   disk : "df -lh | grep '% /$' | awk '{print $5}'"
 }
@@ -84,7 +92,7 @@ Remote.prototype.start = function(cb) {
   var self = this;
 
   self.connect(function(err) {
-    cb(err); 
+    cb(err);
 
     if (!err) self.poll();
   })
@@ -131,7 +139,7 @@ Remote.prototype.stream_closed = function() {
 */
 
 Remote.prototype.stop = function(cb) {
-  // if (this.stream) 
+  // if (this.stream)
   //   this.close_stream(); // should trigger the stream_ended method
   if (this.connected)
     this.disconnect(function() { cb && cb() });