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Re: [Xen-devel] A Performance Comparison of Hypervisors

  • To: "Nicholas Lee" <emptysands@xxxxxxxxx>
  • From: "Henning Sprang" <henning_sprang@xxxxxx>
  • Date: Mon, 5 Feb 2007 13:58:31 +0100
  • Cc: Xen development list <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Mon, 05 Feb 2007 04:58:05 -0800
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On 2/3/07, Nicholas Lee <emptysands@xxxxxxxxx> wrote:
Obviously not a very fair comparison [1]. I can't see how this was done well
at all.

VMWare are a bit silly to release stuff like this, just lowers the whole

Is it still true that they on their side forbid publishing performance
benchmarks in their EULA? I heard something like that a while ago.

I think, here in Germany they would have not many chances to get this
through - a lot of the EULA stuff is not likely to go through a
juristic check...

[1] http://www.vmware.com/vmtn/resources/711

But why must their benchmark stop at 4 vcpus? Don't they wanna test
real high performance systems? How about showing a benchmark of xen
with 32 cpus against a vmware server,( which can only use 4 of these
32), and benchmarks that need more than 8GB of RAM  :)

On the other hand, it's also true that Xen itself does not work 100%
so very good as all the advertising can make one expect - when looking
closer it's not exactly a lie what some XenSource marketing claims
say, but some details are just not told... And some things a user
expects are really hard to do...

Still I am a free software fan, and this adds enough bonus for the time being...


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