Why does a PHP script use different amounts of memory on two servers?
<p>I have a fairly large webapp that I run on a Media Temple server. We have recently decided to move it to the Rackspace cloud. When I run <code>get_memory_usage</code>, I'm using about 4mb of RAM more, per page load. So I guess I have a couple questions.</p>

<ol>
<li>Does it matter?</li>
<li>Why does this happen?</li>
</ol>
