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<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE topic PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
<topic xml:lang="en-us" id="guestadd-memory-usage">
<title>Memory Overcommitment</title>
<body>
<p>
In server environments with many VMs, the Guest Additions can be
used to share physical host memory between several VMs. This
reduces the total amount of memory in use by the VMs. If memory
usage is the limiting factor and CPU resources are still
available, this can help with running more VMs on each host.
</p>
</body>
</topic>
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