Step 1: In config/main.php, add following element to "components" array

'cache'=>array(
            'class'=>'system.caching.CApcCache',
        ),

 

Step2: In config/main.php, add following element to " components[‘db’] " array

'schemaCachingDuration' => 3600

 

Step 3: Comment out the following line of index.php

defined('YII_DEBUG') or define('YII_DEBUG',true);

 

Step 4: Replace following line in index.php

$yii=dirname(__FILE__).'/../yii/framework/yii.php';

with

$yii=dirname(__FILE__).'/../yii/framework/yiilite.php';

 i.e. instead of including yii.php from framework, include yiilite.php