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Understanding Host" and "Guest" Memory Usage and Other Memory Management Concepts"

Created on: Sep 18, 2008 12:00 AM by VMworld Team - Last Modified:  Jul 27, 2009 10:56 AM by VMworld Team

Session Details

Session ID:


Session Title:

Understanding Host" and "Guest" Memory Usage and Other Memory Management Concepts"

Session Abstract:

Have you ever been confused by the "host" and "guest" memory usage metrics in VMware Infrastructure 3? Have you ever wondered why "host" memory usage can be greater than "guest" memory usage? In this session, we will define the "host" and "guest" memory terms and answer some common questions related to them. Along the way, we will discuss a variety of memory management concepts, such as virtual memory, memory pressure, and memory reclamation techniques. This will give you the background to better understand how memory usage patterns and interactions on the ESX Server host can affect the "host" and "guest" memory usage values you see in VirtualCenter. Finally, we will provide you with some best practices around memory management to keep your data center running smoothly and efficiently.


Session Type:

Technical Overview Session


Networking; Storage / Backup; VMware Infrastructure; Virtualization Platform / Hypervisor


1 Hour


Kit Colbert( VMware,Inc. )

Speaker 1:

Kit Colbert is a Senior Staff Engineer in the VMkernel development group at VMware, Inc. He is the technical lead for VMotion and Storage VMotion and helps out with memory resource management and the VMkernel reliability, availability and serviceability (RAS) group.

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