Technical Papers

Memory Resource Management in VMware ESX Server

Publisher:
VMware

Latest Revision:
Aug 20, 2006

Download:
http://www.vmware.com/pdf/usenix_resource_mgmt.pdf

Description

This paper introduces several novel ESX Server mechanisms and policies for managing memory. A ballooning technique reclaims the pages considered least valuable by the operating system running in a virtual machine. An idle memory tax achieves efficient memory utilization while maintaining performance isolation guarantees. Content-based page sharing
and hot I/O page remapping exploit transparent page remapping to eliminate redundancy and reduce copying overheads. These techniques are combined to efficiently support virtual machine workloads that overcommit memory.

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