|
Timekeeping And VMware Virtual Machines |
|
Wednesday, 27 July 2005
by Michel Roth
|
|
Because virtual machines work by time-sharing host physical hardware, a virtual machine cannot exactly duplicate the timing behavior of a physical machine. VMware virtual machines use several techniques to minimize and conceal differences in timing behavior, but the differences can still sometimes cause timekeeping inaccuracies and other problems in guest software. This white paper describes how timekeeping hardware works in physical machines, how typical guest operating systems use this hardware to keep time, and how VMware products virtualize the hardware. The paper also describes several known timekeeping issues you may encounter and how to correct or work around them.
Read more here.
|
