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<title>Gets system load average</title>
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<h1 class="refname">sys_getloadavg</h1>
<p class="verinfo">(PHP 5 >= 5.1.3)</p><p class="refpurpose"><span class="refname">sys_getloadavg</span> — <span class="dc-title">Gets system load average</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.sys-getloadavg-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">array</span> <span class="methodname"><strong>sys_getloadavg</strong></span>
( <span class="methodparam">void</span>
)</div>
<p class="para rdfs-comment">
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.
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.sys-getloadavg-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns an <span class="type"><a href="language.types.array.html" class="type array">array</a></span> with three samples (last 1, 5 and 15
minutes).
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.sys-getloadavg-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-3785">
<p><strong>Example #1 A <span class="function"><strong>sys_getloadavg()</strong></span> example</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br />$load </span><span style="color: #007700">= </span><span style="color: #0000BB">sys_getloadavg</span><span style="color: #007700">();<br />if (</span><span style="color: #0000BB">$load</span><span style="color: #007700">[</span><span style="color: #0000BB">0</span><span style="color: #007700">] > </span><span style="color: #0000BB">80</span><span style="color: #007700">) {<br /> </span><span style="color: #0000BB">header</span><span style="color: #007700">(</span><span style="color: #DD0000">'HTTP/1.1 503 Too busy, try again later'</span><span style="color: #007700">);<br /> die(</span><span style="color: #DD0000">'Server too busy. Please try again later.'</span><span style="color: #007700">);<br />}<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
</div>
</p>
</div>
<div class="refsect1 notes" id="refsect1-function.sys-getloadavg-notes">
<h3 class="title">Notes</h3>
<blockquote class="note"><p><strong class="note">Note</strong>: <span class="simpara">This function is not
implemented on Windows platforms.</span></p></blockquote>
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