How to setup views caching, all my views miss the cache?

Hello

Is there something special that needs to be done in order to cache Views?

I have this in my settings.php:
include_once('./includes/cache.inc');
include_once('./sites/all/modules/memcache/memcache.inc');
$conf['cache_default_class'] = 'MemCacheDrupal';
$conf['memcache_key_prefix'] = 'something_unique1231';

My stats say this on one of my views:

action bin key hit
getMulti cache_views something_unique1231-cache_views-ctools_export%3Aviews_view%3Akalender_oversigt 0