Config and Module cache options found in ./config/application.config.php

application.config.php

<?php
// Whether or not to enable a configuration cache.
// If enabled, the merged configuration will be cached and used in
// subsequent requests.
'config_cache_enabled' => $booleanValue,

// The key used to create the configuration cache file name.
'config_cache_key' => $stringKey,

// Whether or not to enable a module class map cache.
// If enabled, creates a module class map cache which will be used
// by in future requests, to reduce the autoloading process.
'module_map_cache_enabled' => $booleanValue,

// The key used to create the class map cache file name.
'module_map_cache_key' => $stringKey,

// The path in which to cache merged configuration.
'cache_dir' => $stringPath,