<p><b>Excess Memory Usage (Relative)</b></p>
<p>Generate an event when memory use for PHP script execution is above or below average, X% for moderate alerts and Y% for severe alerts.</p>
<p><b>Note:</b> This option is only active if the PHP is compiled with memory limit.</p>
<p>Relative Events: the event definitions are based on relative values i.e. percentage. Relative values are set according to warm-up settings, default value of 500 requests.<br>If necessary, the default value can be modified manually by changing the zend_monitor.warmup_requests directive in the php.ini file.</p>