diff --git a/message_tree/message_tree_algorithms.py b/message_tree/message_tree_algorithms.py
index 6be5df6..33c73f3 100644
--- a/message_tree/message_tree_algorithms.py
+++ b/message_tree/message_tree_algorithms.py
@@ -8,7 +8,7 @@ from tqdm import tqdm
 
 from latency_graph.latency_graph_structure import LatencyGraph
 from matching.subscriptions import sanitize
-from message_tree.message_tree_structure import DepTree, E2EBreakdownItem
+from message_tree.message_tree_structure import DepTree, E2EBreakdownItem, depth, size
 from tracing_interop.tr_types import TrCallbackInstance, TrPublishInstance, TrPublisher, TrCallbackObject, TrContext, \
     TrSubscriptionObject, TrTimer, TrNode, TrTopic
 
@@ -104,7 +104,7 @@ def build_dep_trees(end_topics, lat_graph, tr, excluded_path_patterns, time_limi
         pubs = end_topic.publishers
         for pub in pubs:
             msgs = list(pub.instances)
-            for msg in tqdm(msgs, desc="Processing output messages"):
+            for msg in tqdm(msgs, mininterval=5.0, desc="Processing output messages"):
                 msg: TrPublishInstance
                 tree = get_dep_tree(msg, lat_graph, tr, excluded_path_patterns, time_limit_s)
                 all_trees.append(tree)
@@ -233,8 +233,17 @@ def e2e_paths_sorted_desc(tree: DepTree, input_topic_patterns):
     `input_topic_patterns`. The paths are sorted by length in a descending manner (element 0 is longest).
     """
 
-    def _collect_all_paths(t: DepTree):
-        return [(*_collect_all_paths(d), t.head) for d in t.deps]
+    # TODO: Make this a Dijkstra/similar implementation instead. This is so slow it's funny.
+    def _collect_all_paths(t: DepTree, lvl=0):
+        """
+        Returns a flat list of all paths that lead from t's root to a leaf.
+        """
+        if lvl > 30 or not t.deps:
+            return [(t.head, )]
+
+        # List of flat lists of paths
+        deps_paths = [_collect_all_paths(d, lvl + 1) for d in t.deps]
+        return [(*path, t.head) for dep_paths in deps_paths for path in dep_paths]
 
     def _trim_path(path):
         valid_input = False
@@ -250,14 +259,17 @@ def e2e_paths_sorted_desc(tree: DepTree, input_topic_patterns):
         if not valid_input:
             return None
 
-        if i == 0 or not isinstance(path[i - 1], TrCallbackInstance):
-            print(f"[WARN] Message has no publishing callback in dep tree.")
-            return path[i:]  # Return path from first message that fits an input topic pattern
+        if i == 0:
+            #print(end=".")
+            return None
+        if not isinstance(path[i - 1], TrCallbackInstance):
+            #print(end="#")
+            return None
 
         return path[i - 1:]  # Return path from its publishing callback if it exists
 
     paths = _collect_all_paths(tree)
-    paths = list(filter(lambda p: p is not None, map(_trim_path, tqdm(paths, desc="_trim_path"))))
+    paths = list(filter(None, map(_trim_path, paths)))
     paths.sort(key=lambda path: path[-1].timestamp - path[0].timestamp, reverse=True)
     return paths
 
@@ -328,7 +340,7 @@ def _repr_path(path: List[TrPublishInstance | TrCallbackInstance]):
 def aggregate_e2e_paths(paths: List[List[TrPublishInstance | TrCallbackInstance]]):
     path_cohorts = defaultdict(list)
 
-    for path in paths:
+    for path in tqdm(paths, mininterval=5.0, desc="Aggregating E2E path cohorts"):
         key = _repr_path(path)
         path_cohorts[key].append(path)
 
diff --git a/message_tree/message_tree_plots.py b/message_tree/message_tree_plots.py
index c4f8ece..b9d6ed0 100644
--- a/message_tree/message_tree_plots.py
+++ b/message_tree/message_tree_plots.py
@@ -40,7 +40,7 @@ def e2e_breakdown_inst_stack(*paths: List[E2EBreakdownItem]):
     fig.suptitle("Detailed E2E Latency Path Breakdown")
 
     bottom = 0
-    for i in range(len(paths)):
+    for i in range(len(paths[0])):
         e2e_items = [path[i] for path in paths]
         durations = np.array([item.duration for item in e2e_items])
         ax.bar(range(len(paths)), durations, bottom=bottom)
diff --git a/message_tree/message_tree_structure.py b/message_tree/message_tree_structure.py
index 7356d4d..6c32211 100644
--- a/message_tree/message_tree_structure.py
+++ b/message_tree/message_tree_structure.py
@@ -5,12 +5,16 @@ E2EBreakdownItem = namedtuple("E2EBreakdownItem", ("type", "duration", "location
 DepTree = namedtuple("DepTree", ("head", "deps"))
 
 
-def depth(tree: DepTree):
-    return 1 + max(map(depth, tree.deps), default=0)
+def depth(tree: DepTree, lvl=0):
+    if lvl > 1000:
+        return 0
+    return 1 + max(map(lambda d: depth(d, lvl + 1), tree.deps), default=0)
 
 
-def size(tree: DepTree):
-    return 1 + sum(map(size, tree.deps))
+def size(tree: DepTree, lvl=0):
+    if lvl > 1000:
+        return 0
+    return 1 + sum(map(lambda d: size(d, lvl + 1), tree.deps))
 
 
 def fanout(tree: DepTree):
diff --git a/trace-analysis.ipynb b/trace-analysis.ipynb
index 7c2f59a..e05b69f 100644
--- a/trace-analysis.ipynb
+++ b/trace-analysis.ipynb
@@ -25,6 +25,7 @@
     "\n",
     "from misc.utils import cached, parse_as\n",
     "\n",
+    "# TODO: This is useless for some reason (goal is to make graphs in notebook large and hi-res)\n",
     "plt.rcParams['figure.dpi'] = 300\n",
     "\n",
     "%matplotlib inline"
@@ -134,10 +135,10 @@
     "\n",
     "# E2E paths are uniquely identified by a string like \"/topic/1 -> void(Node1)(args1) -> /topic/2 -> void(Node2)(args2) -> void(Node2)(args3) -> ...\".\n",
     "# Certain patterns only occur in initial setup or in scenario switching and can be excluded via RegEx patterns here.\n",
-    "E2E_EXCLUDED_PATH_PATTERNS = [r\"NDTScanMatcher\"]\n",
+    "E2E_EXCLUDED_PATH_PATTERNS = [r\"NDTScanMatcher\", r\"^/parameter_events\"]\n",
     "\n",
     "\n",
-    "DDD = False\n",
+    "DEBUG = False\n",
     "\n",
     "# This code overrides the above constants with environment variables, do not edit.\n",
     "for env_key, env_value in os.environ.items():\n",
@@ -443,7 +444,7 @@
    "source": [
     "%%skip_if_false E2E_ENABLED\n",
     "%%skip_if_false E2E_PLOT\n",
-    "%%skip_if_false DDD\n",
+    "%%skip_if_false DEBUG\n",
     "\n",
     "\n",
     "fig, ax = plt.subplots(num=\"e2e_plot\")\n",
@@ -486,33 +487,53 @@
     "collapsed": false
    }
   },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "outputs": [],
+   "source": [
+    "%%skip_if_false DEBUG\n",
+    "\n",
+    "import pickle\n",
+    "with open(\"trees.pkl\", \"rb\") as f:\n",
+    "    trees = pickle.load(f)"
+   ],
+   "metadata": {
+    "collapsed": false
+   }
+  },
   {
    "cell_type": "code",
    "execution_count": null,
    "outputs": [],
    "source": [
     "%%skip_if_false E2E_ENABLED\n",
-    "%%skip_if_false E2E_PLOT\n",
-    "\n",
-    "%load_ext line_profiler\n",
-    "\n",
     "\n",
     "from message_tree.message_tree_algorithms import e2e_paths_sorted_desc\n",
     "from message_tree.message_tree_plots import e2e_breakdown_type_hist\n",
     "\n",
-    "def _map_tree_to_e2es(tree):\n",
-    "    return e2e_paths_sorted_desc(tree, E2E_INPUT_TOPIC_PATTERNS)\n",
+    "trees_paths = [e2e_paths_sorted_desc(tree, E2E_INPUT_TOPIC_PATTERNS) for tree in tqdm(trees, mininterval=10.0,\n",
+    "                                                                                      desc=\"Extracting E2E paths\")]\n",
+    "all_paths = [p for paths in trees_paths for p in paths]\n",
+    "#all_e2e_items = [i for p in all_paths for i in p]"
+   ],
+   "metadata": {
+    "collapsed": false
+   }
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "outputs": [],
+   "source": [
+    "%%skip_if_false E2E_ENABLED\n",
+    "%%skip_if_false E2E_PLOT\n",
     "\n",
-    "def ppp():\n",
-    "    trees_paths = [e2e_paths_sorted_desc(tree, E2E_INPUT_TOPIC_PATTERNS) for tree in tqdm(trees, desc=\"Extracting E2E paths\")]\n",
-    "    all_paths = [p for paths in trees_paths for p in paths]\n",
-    "    all_e2e_items = [i for p in all_paths for i in p]\n",
+    "from message_tree.message_tree_algorithms import e2e_latency_breakdown\n",
     "\n",
-    "    return all_e2e_items\n",
-    "\n",
-    "%lprun -f e2e_paths_sorted_desc ppp()\n",
-    "\n",
-    "e2e_breakdown_type_hist(ppp())\n",
+    "conv_items = [i for p in tqdm(all_paths, mininterval=5.0, desc=\"Calculating E2E latency breakdowns\")\n",
+    "              for i in e2e_latency_breakdown(p)]\n",
+    "e2e_breakdown_type_hist(conv_items)\n",
     "\n",
     "None\n"
    ],
@@ -525,10 +546,60 @@
    "execution_count": null,
    "outputs": [],
    "source": [
+    "%%skip_if_false E2E_ENABLED\n",
+    "\n",
+    "from message_tree.message_tree_algorithms import aggregate_e2e_paths\n",
+    "\n",
+    "cohorts = aggregate_e2e_paths(all_paths)\n",
+    "cohort_pairs = [(k, v) for k, v in cohorts.items()]\n",
+    "cohort_pairs.sort(key=lambda kv: len(kv[1]), reverse=True)\n",
+    "\n",
+    "path_records = [{\"path\": path_key,\n",
+    "                 \"timestamp\": path[-1].timestamp,\n",
+    "                 \"e2e_latency\": path[-1].timestamp - path[0].timestamp} \\\n",
+    "                for path_key, paths in cohort_pairs for path in paths if path]\n",
+    "\n",
+    "out_df = pd.DataFrame.from_records(path_records)\n",
+    "out_df.to_csv(os.path.join(OUT_PATH, \"e2e.csv\"), sep=\"\\t\", index=False)\n",
+    "\n",
+    "mode_cohort_key, mode_cohort = cohort_pairs[0]"
+   ],
+   "metadata": {
+    "collapsed": false
+   }
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "outputs": [],
+   "source": [
+    "%%skip_if_false E2E_ENABLED\n",
+    "%%skip_if_false E2E_PLOT\n",
+    "\n",
+    "from message_tree.message_tree_plots import e2e_breakdown_inst_stack\n",
+    "\n",
+    "\n",
+    "mode_cohort_breakdown = [e2e_latency_breakdown(p) for p in mode_cohort[:200]]\n",
+    "print(len(mode_cohort))\n",
+    "print(mode_cohort_key.replace(\" -> \", \"\\n -> \"))\n",
+    "e2e_breakdown_inst_stack(*mode_cohort_breakdown)"
+   ],
+   "metadata": {
+    "collapsed": false
+   }
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "outputs": [],
+   "source": [
+    "%%skip_if_false E2E_ENABLED\n",
+    "%%skip_if_false DEBUG\n",
+    "\n",
     "import pickle\n",
     "\n",
     "with open(\"trees.pkl\", \"wb\") as f:\n",
-    "    pickle.dump(trees, f)\n"
+    "    pickle.dump(trees, f)"
    ],
    "metadata": {
     "collapsed": false