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# sys_getloadavg

(no version information, might be only in CVS)

sys_getloadavg -- Gets system load average

## 说明

array sys_getloadavg ( void )

Returns three samples representing the average system load (the number of processes in the system run queue) over the last 1, 5 and 15 minutes, respectively.

## 返回值

Returns an array with three samples (last 1, 5 and 15 minutes).

## 范例

例 1. A sys_getloadavg() example

`<?php $load = sys_getloadavg(); if ($load[0] > 80) { header('HTTP/1.1 503 Too busy, try again later'); die('Server too busy. Please try again later.'); } ?>`

## 注释

> 注意: 本函数未在 Windows 平台下实现。

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