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I'm trying to find out which percentage of real-world server hardware is being used for virtualization, and which one to directly run operating systems and applications.

I'm not asking for your personal experience here, but rather for some statistics, if such studies have been made by anyone (server vendors? VMware?). Also, historical data would be very useful.

Please provide sources and/or links, if at all possible.

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We're looking for long answers that provide some explanation and context. Don't just give a one-line answer; explain why your answer is right, ideally with citations. Answers that don't include explanations may be removed.

closed as not a real question by John Gardeniers, voretaq7 Oct 23 '12 at 20:09

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

So if we can't use personal experience then why don't you just google it like everybody else would do. Anything I'd say would be my personal experience. – tony roth Dec 23 '11 at 23:19
up vote 1 down vote accepted

Gartner did some research a few years back, here is the summary.

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