symfony - symfony2 free -m out of memory -

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i have symfony2 app out there. have ram memory problems... works charm when there 50 active people (google analytics).

i select data db usally this:

        $qb=$this->createquerybuilder('s')          ->addselect('u')          ->where('s.user = :user')          ->andwhere('s.admin_status = false')          ->andwhere('s.typ_statusu != :group')          ->setparameter('user', $user)          ->setparameter('group', 'group')          ->innerjoin('s.user', 'u')                         ->orderby('s.time', 'desc')          ->setmaxresults(15);   return $query=$qb->getquery()->getresult();

the queries fast dont have problem them.

let me please know need , paste here. need fix much..

but problem come now: when there 470people @ same time.. (google analytics) there 7gb of memory away... fall down after peak 5gb. why much??? scripts take 10-17mb of memory usage in app_dev.

i use apc. how can solve situation? why there memory consumed? thx advice!!

whats average memory?

btw: when not solve in big troubles.

one problem doctrine , if hydrating obejcts in every single request.


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