diff --git a/src/aphront/console/plugin/services/DarkConsoleServicesPlugin.php b/src/aphront/console/plugin/services/DarkConsoleServicesPlugin.php
index 91da2d5f01..dc053dfa6e 100644
--- a/src/aphront/console/plugin/services/DarkConsoleServicesPlugin.php
+++ b/src/aphront/console/plugin/services/DarkConsoleServicesPlugin.php
@@ -29,14 +29,19 @@ class DarkConsoleServicesPlugin extends DarkConsolePlugin {
   }
 
   public function generateData() {
-    return PhutilServiceProfiler::getInstance()->getServiceCallLog();
+
+    return array(
+      'start' => $GLOBALS['__start__'],
+      'log'   => PhutilServiceProfiler::getInstance()->getServiceCallLog(),
+    );
   }
 
   public function render() {
     $data = $this->getData();
+    $log = $data['log'];
 
     $rows = array();
-    foreach ($data as $row) {
+    foreach ($log as $row) {
 
       switch ($row['type']) {
         case 'query':
@@ -62,6 +67,7 @@ class DarkConsoleServicesPlugin extends DarkConsolePlugin {
 
       $rows[] = array(
         phutil_escape_html($row['type']),
+        '+'.number_format(1000 * ($row['begin'] - $data['start'])).' ms',
         number_format(1000000 * $row['duration']).' us',
         $info,
       );
@@ -72,11 +78,13 @@ class DarkConsoleServicesPlugin extends DarkConsolePlugin {
       array(
         null,
         'n',
+        'n',
         'wide wrap',
       ));
     $table->setHeaders(
       array(
         'Event',
+        'Start',
         'Duration',
         'Details',
       ));
diff --git a/src/applications/differential/parser/changeset/DifferentialChangesetParser.php b/src/applications/differential/parser/changeset/DifferentialChangesetParser.php
index f3a1c3fc58..76a89b775a 100644
--- a/src/applications/differential/parser/changeset/DifferentialChangesetParser.php
+++ b/src/applications/differential/parser/changeset/DifferentialChangesetParser.php
@@ -435,8 +435,26 @@ class DifferentialChangesetParser {
       $this->oldRender = explode("\n", phutil_escape_html($old_corpus_block));
       $this->newRender = explode("\n", phutil_escape_html($new_corpus_block));
     } else {
-      $this->oldRender = $this->sourceHighlight($this->old, $old_corpus_block);
-      $this->newRender = $this->sourceHighlight($this->new, $new_corpus_block);
+      $old_future = $this->getHighlightFuture($old_corpus_block);
+      $new_future = $this->getHighlightFuture($new_corpus_block);
+      $futures = array(
+        'old' => $old_future,
+        'new' => $new_future,
+      );
+      foreach (Futures($futures) as $key => $future) {
+        switch ($key) {
+          case 'old':
+            $this->oldRender = $this->processHighlightedSource(
+              $this->old,
+              $future->resolve());
+            break;
+          case 'new':
+            $this->newRender = $this->processHighlightedSource(
+              $this->new,
+              $future->resolve());
+            break;
+        }
+      }
     }
 
     $this->applyIntraline(
@@ -648,10 +666,13 @@ class DifferentialChangesetParser {
     }
   }
 
-  protected function sourceHighlight($data, $corpus) {
-    $result = $this->highlightEngine->highlightSource(
+  protected function getHighlightFuture($corpus) {
+    return $this->highlightEngine->getHighlightFuture(
       $this->filetype,
       $corpus);
+  }
+
+  protected function processHighlightedSource($data, $result) {
 
     $result_lines = explode("\n", $result);
     foreach ($data as $key => $info) {
diff --git a/src/applications/differential/parser/changeset/__init__.php b/src/applications/differential/parser/changeset/__init__.php
index 2dc0087010..e6fd9e2ec8 100644
--- a/src/applications/differential/parser/changeset/__init__.php
+++ b/src/applications/differential/parser/changeset/__init__.php
@@ -20,6 +20,7 @@ phutil_require_module('phabricator', 'storage/queryfx');
 
 phutil_require_module('phutil', 'filesystem');
 phutil_require_module('phutil', 'filesystem/tempfile');
+phutil_require_module('phutil', 'future');
 phutil_require_module('phutil', 'future/exec');
 phutil_require_module('phutil', 'markup');
 phutil_require_module('phutil', 'markup/syntax/engine/default');
diff --git a/webroot/index.php b/webroot/index.php
index 4223c289f8..c02cb46404 100644
--- a/webroot/index.php
+++ b/webroot/index.php
@@ -16,6 +16,7 @@
  * limitations under the License.
  */
 
+$__start__ = microtime(true);
 
 error_reporting(E_ALL | E_STRICT);
 ini_set('memory_limit', -1);