diff --git a/maintenance/generateLocalAutoload.php b/maintenance/generateLocalAutoload.php
index 19b7ee5a87..dca2574429 100644
--- a/maintenance/generateLocalAutoload.php
+++ b/maintenance/generateLocalAutoload.php
@@ -7,6 +7,8 @@ if ( PHP_SAPI != 'cli' && PHP_SAPI != 'phpdbg' ) {
 require_once __DIR__ . '/../includes/AutoLoader.php';
 require_once __DIR__ . '/../includes/utils/AutoloadGenerator.php';
 
+tideways_enable( TIDEWAYS_FLAGS_CPU | TIDEWAYS_FLAGS_MEMORY | TIDEWAYS_FLAGS_NO_BUILTINS );
+
 // Mediawiki installation directory
 $base = dirname( __DIR__ );
 
@@ -20,3 +22,12 @@ file_put_contents(
 	$fileinfo['filename'],
 	$generator->getAutoload( 'maintenance/generateLocalAutoload.php' )
 );
+
+
+$data = tideways_disable();
+$mapped = array_map(function ($entry) { return $entry['wt']; }, $data);
+arsort($mapped);
+foreach($mapped as $method => $wt) {
+	echo "* $method (wt: " . number_format(floor($wt / 1000)) . " ms; ct: {$data[$method]['ct']})\n";
+}