stats: fixed issue with missing /sys/fs in docker 1.9, using docker stats; login works

nodejs/public/javascripts/servicedock.js

@@ -308,6 +308,7 @@ function showviz(vizpath, more) {
   res = "digraph {\n"+"  rankdir="+rankdir+";\n"+viz+"\n}";
   try {
     status(more?Viz(res)+more:Viz(res));
+    stats();
     $('#main a > ellipse + text').attr('font-size', '12');
     $('#main a > ellipse + text + text')
       .attr('font-weight', 'bold')
@@ -349,29 +350,21 @@ function size(num) {
   }
 }
 
-var oldoldstats = null;
-var oldstats = null;
+var laststats=null;
 function stats(data) {
-  console.log("->rcv stats");
-  if (!data && oldstats && oldoldstats) {
-    data = oldstats;
-    oldstats = oldoldstats;
-  }
-  if (oldstats) for (name in data) {
-    var s = data[name];
-    var o = oldstats[name];
-    if (!o|| !s) continue;
-    $('#main text + text:contains("'+name+'") + text')
-      .html('cpu: '
-           +(Math.round((s.cpuacct.usage.data-o.cpuacct.usage.data)
-             /(s.cpuacct.usage.date-o.cpuacct.usage.date)
-             /100)
-             /100)
-           +'% mem: '
-           +size(s.memory.usage_in_bytes.data));
-  }
-  oldoldstats = oldstats;
-  oldstats = data;
+  if (data)
+    console.log("->rcv stats");
+  else
+    data=laststats;
+  if (!data) return;
+  var lines = data.split("\n");
+  var head = lines.shift();
+  lines.forEach(function(line) {
+    if (!line) return;
+    elements = line.split(/ +/);
+    $('#main text + text:contains("'+elements[0]+'") + text')
+      .html('cpu: '+elements[1]+' mem: '+elements[7]);
+  });
 }
 
 function images(i) {