Tweaks and fixes

Author: javiereguiluz

performance.rst

@@ -53,14 +53,17 @@ Use the OPcache class preloading
     The feature that generates the preloading file was introduced in Symfony 4.4.
 
 Starting from PHP 7.4, OPcache can compile and load classes at start-up and
-make them available to all requests until the server is shut down, improving
-performance significantly. Symfony generates automatically the file with the
-list of classes to preload:
+make them available to all requests until the server is restarted, improving
+performance significantly.
+
+Symfony generates the file automatically with the list of classes to preload.
+The file path is the same as the file generated for the service container but
+with the ``preload`` suffix:
 
 .. code-block:: ini
 
     ; php.ini
-    opcache.preload=/path/to/project/var/cache/prod/srcApp_KernelProdContainer.preload.php
+    opcache.preload=/path/to/project/var/cache/prod/App_KernelProdContainer.preload.php
 
 .. _performance-configure-opcache: