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---
title: Tuning the ProxyManager for production
---
## Tuning the ProxyManager for production
By default, all proxy factories generate the required proxy classes at runtime.
Proxy generation causes I/O operations and uses a lot of reflection, so be sure to have
generated all of your proxies **before deploying your code on a live system**, or you
may experience poor performance.
You can configure ProxyManager so that it will try autoloading the proxies first.
Generating them "bulk" is not yet implemented:
```php
$config = new \ProxyManager\Configuration();
$config->setProxiesTargetDir(__DIR__ . '/my/generated/classes/cache/dir');
// then register the autoloader
spl_autoload_register($config->getProxyAutoloader());
```
Generating a classmap with all your proxy classes in it will also work perfectly.
Please note that all the currently implemented `ProxyManager\Factory\*` classes accept
a `ProxyManager\Configuration` object as optional constructor parameter. This allows for
fine-tuning of ProxyManager according to your needs.