title: Resource Usage summary: Manage SilverStripe's memory footprint and CPU usage. # Resource Usage SilverStripe tries to keep its resource usage within the documented limits (see the [server requirements](../../getting_started/server_requirements)). These limits are defined through `memory_limit` and `max_execution_time` in the PHP configuration. They can be overwritten through `ini_set()`, unless PHP is running with the [Suhoshin Patches](http://www.hardened-php.net/) or in "[safe mode](http://php.net/manual/en/features.safe-mode.php)".
Most shared hosting providers will have maximum values that can't be altered.
For certain tasks like synchronizing a large `assets/` folder with all file and folder entries in the database, more resources are required temporarily. In general, we recommend running resource intensive tasks through the [command line](../cli), where configuration defaults for these settings are higher or even unlimited.
SilverStripe can request more resources through `Environment::increaseMemoryLimitTo()` and `Environment::increaseTimeLimitTo()` functions.
:::php public function myBigFunction() { Environment::increaseTimeLimitTo(400); }