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[Xen-users] cpu life cycle comparison, virtualized to standard?

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] cpu life cycle comparison, virtualized to standard?
From: Tim Post <tim.post@xxxxxxxxxxxxxxx>
Date: Wed, 14 Mar 2007 19:19:14 +0800
Delivery-date: Wed, 14 Mar 2007 04:18:54 -0700
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Hello to all,

Recently I got to thinking about how virtualization allows you to
maximize resource usage. 

On busy systems, this means processors and RAM are utilized to a higher
percentage all of the time. For 80% efficiency, one would need to be
utilizing at least 80% of all RAM and CPU on any given node 100% of the
time. This is easily achieved with something like Xen.

Have there been any studies that indicate how this type of utilization
effects processor life cycle? Do processors in servers that ran 2 years
not virtualized live longer than the same 2 in servers virtualized with
a high (80% or better) usage efficiency? 

Does anyone know if this is being studied and if data is becoming
available?

Best,
--Tim


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