Easy method for caching for example results of a pagelist search query. We use the default caching library build in Concrete5. Depending on your server the code below will run 10 times faster when cached.

Place in controller

$ca = new Cache();
$pages= $ca->get('staticNewsList','home');
if(empty($pages) || !is_array($pages)) {
    $pl = new PageList();
    $pl->filterByPath('/profile');
    $pages = $pl->get();
    $ca->set('staticNewsList','home',$pages);
} 
$this->set('pages', $pages);

Place in view

/* in VIEW list items */
if(isset($pages) && count($pages)){
    foreach($pages as $cobj){
        echo $cobj->getCollectionName();
    }
}

also see: concrete5 documentation

Zend Cache documentation