ZF2 Optimize for high traffic

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There’s few very simple steps to achieve a faster application. There’s three things that can always be considered.

  1. ZF2 Performance QuickTipp #1 – ViewModels
    Always manually assign the fully qualified script to render. This will increase the performance a little. It’s done like this:

    public function someAction()
{
    $viewModel = new ViewModel();
    $viewModel->setTemplate('MODULE / CONTROLLER / ACTION.phtml');
    // In this given example: $viewModel->setTemplate('foo/bar/some.phtml');

    // Do some other Controller-logic as used to

    return $viewModel->setVariables(array(
        //key-value-paired view-variables
    ));
}

  2. ZF2 Performance QuickTipp #2 – Classmap Autoloading
    This probably is one of the most important parts of speeding up your application. Personally i’ve seen an increase in LoadingTimes by up to 40%. Implementing this is pretty simple:

    class Module 
{
    public function getAutoloaderConfig()
    {
        return array(
           'Zend\Loader\ClassMapAutoloader' => array(
                __DIR__ . '/autoload_classmap.php',
           ),
        );
    }
}

    The autoload_classmap.php then is a simple array of 'FQ-CLASSNAME' => 'FQ-FILEPATH'. This can be automatted pretty easily using the classmap_generator-utility of ZF2

  3. ZF2 Performance QuickTipp #3 – Keep Module.php light!
    Sadly this is a post i haven’t come around to write yet. The Module.php is a file that is loaded on every single request. Lots of people forget about this and write lots and lots of factories inside them. At one point, ZfcUser-Module.php was an example of what not to do. Closures or anonymous functions are executed on every request, too. This is quite a bit of work to be done if there’s too many of them over the whole project. A better approach would be to simply write Factory-Classes. ZfcUser later updated Module.php to use this strategy.

And that’s pretty much all the easy stuff one can do (that i know of – i dont know much! :D). However what sounds interesting is that starting to use 3 users your application runs slow. To my experience this has nothing to do with the scripts itself but is rather an server issue. Is this from a Staging Machine or locally?

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