diff --git a/Civi/Core/ClassScanner.php b/Civi/Core/ClassScanner.php
index 486b91e4dbd7..5d7b6954ed94 100644
--- a/Civi/Core/ClassScanner.php
+++ b/Civi/Core/ClassScanner.php
@@ -222,9 +222,11 @@ public static function cache(string $name): \CRM_Utils_Cache_Interface {
       switch ($name) {
         case 'index':
           if (empty($_DB_DATAOBJECT['CONFIG'])) {
+            \Civi\HitOrMiss::inc('ClassScanner::cache(index) => Early usage');
             // Atypical example: You have a test with a @dataProvider that relies on ClassScanner. Runs before bot.
             return new \CRM_Utils_Cache_ArrayCache([]);
           }
+          \Civi\HitOrMiss::inc('ClassScanner::cache(index) => create(...)');
           static::$caches[$name] = \CRM_Utils_Cache::create([
             'name' => 'classes',
             'type' => ['*memory*', 'SqlGroup', 'ArrayCache'],
@@ -232,6 +234,7 @@ public static function cache(string $name): \CRM_Utils_Cache_Interface {
           ]);
 
         case 'structure':
+          \Civi\HitOrMiss::inc('ClassScanner::cache(structure) => New arraycache');
           static::$caches[$name] = new \CRM_Utils_Cache_ArrayCache([]);
           break;
 
diff --git a/Civi/HitOrMiss.php b/Civi/HitOrMiss.php
new file mode 100644
index 000000000000..66dc9d613f8c
--- /dev/null
+++ b/Civi/HitOrMiss.php
@@ -0,0 +1,12 @@
+<?php
+namespace Civi;
+
+class HitOrMiss {
+
+  public static $counts = [];
+
+  public static function inc(string $name): void {
+    static::$counts[$name] = (static::$counts[$name] ?? 0) + 1;
+  }
+
+}
diff --git a/tests/phpunit/CiviTest/bootstrap.php b/tests/phpunit/CiviTest/bootstrap.php
index c6b8e3ddc18f..2f1f3b3ea1f1 100644
--- a/tests/phpunit/CiviTest/bootstrap.php
+++ b/tests/phpunit/CiviTest/bootstrap.php
@@ -33,6 +33,11 @@
   }
 });
 
+register_shutdown_function(function() {
+  fprintf(STDERR, "HitOrMiss: %s\n", json_encode(\Civi\HitOrMiss::$counts, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES));
+
+});
+
 // ------------------------------------------------------------------------------
 
 /**