An attempt at some Perf improvements

app/assets/javascripts/discourse/views/post_menu_view.js

@@ -13,13 +13,12 @@ Discourse.PostMenuView = Discourse.View.extend({
   shouldRerender: Discourse.View.renderIfChanged(
     'post.deleted_at',
     'post.flagsAvailable.@each',
-    'post.url',
-    'post.bookmarked',
     'post.reply_count',
     'post.showRepliesBelow',
     'post.can_delete',
-    'post.read',
-    'post.topic.last_read_post_number',
+    'bookmarkClass',
+    'bookmarkTooltip',
+    'shareUrl',
     'post.topic.deleted_at'),
 
   render: function(buffer) {
@@ -163,7 +162,7 @@ Discourse.PostMenuView = Discourse.View.extend({
   renderShare: function(post, buffer) {
     buffer.push("<button title=\"" +
                  (I18n.t("post.controls.share")) +
-                 "\" data-share-url=\"" + (post.get('shareUrl')) + "\" class='share'><i class=\"icon-link\"></i></button>");
+                 "\" data-share-url=\"" + post.get('shareUrl') + "\" class='share'><i class=\"icon-link\"></i></button>");
   },
 
   // Reply button

app/assets/javascripts/discourse/views/topic_view.js

@@ -21,6 +21,10 @@ Discourse.TopicView = Discourse.View.extend(Discourse.Scrolling, {
   postStream: Em.computed.alias('controller.postStream'),
 
   updateBar: function() {
+    Em.run.scheduleOnce('afterRender', this, 'updateProgressBar');
+  }.observes('controller.streamPercentage'),
+
+  updateProgressBar: function() {
     var $topicProgress = $('#topic-progress');
     if (!$topicProgress.length) return;
 
@@ -30,8 +34,7 @@ Discourse.TopicView = Discourse.View.extend(Discourse.Scrolling, {
     $topicProgress.find('.bg')
                   .css("border-right-width", (progressWidth === totalWidth) ? "0px" : "1px")
                   .width(progressWidth);
-
-  }.observes('controller.streamPercentage'),
+  },
 
   updateTitle: function() {
     var title = this.get('topic.title');
@@ -79,7 +82,6 @@ Discourse.TopicView = Discourse.View.extend(Discourse.Scrolling, {
     if (this.present('controller.enteredAt')) {
       var topicView = this;
       Em.run.schedule('afterRender', function() {
-        topicView.updateBar();
         topicView.updatePosition();
       });
     }
@@ -337,7 +339,6 @@ Discourse.TopicView.reopenClass({
   // Scroll to a given post, if in the DOM. Returns whether it was in the DOM or not.
   jumpToPost: function(topicId, postNumber, avoidScrollIfPossible) {
     Em.run.scheduleOnce('afterRender', function() {
-
       var rows = $('.topic-post.ready');
 
       // Make sure we're looking at the topic we want to scroll to

app/assets/javascripts/external/ember-renderspeed.js

@@ -27,7 +27,7 @@
       @property description
     **/
     description: function() {
-      var result = "Rendered ";
+      var result = "";
       if (this.get('payload.template')) {
         result += "'" + this.get('payload.template') + "' ";
       }
@@ -61,15 +61,15 @@
 
       @method log
     **/
-    log: function() {
-      if ((!console) || (!console.groupCollapsed)) { return; }
+    log: function(type) {
+      if ((typeof console === 'undefined') || (!console.groupCollapsed)) { return; }
 
       // We don't care about really fast renders
       if (this.get('time') < 1) { return; }
 
-      console.groupCollapsed(this.get('description'));
+      console.groupCollapsed(type + ": " + this.get('description'));
       this.get('children').forEach(function (c) {
-        c.log();
+        c.log(type);
       });
       console.groupEnd();
     }
@@ -94,7 +94,7 @@
       profileNode.set('end', timestamp);
 
       if (!this.depth) {
-        profileNode.log();
+        profileNode.log("Render");
       }
     }
   });