Francis Earl wrote:
> On Thu, 2009-06-18 at 08:51 -0700, Stephen wrote:
>> Citrix Announcement:
>> http://citrix.com/English/NE/news/news.asp?newsID=1690242
>>
>> or right to download:
>> http://www.citrix.com/lang/English/lp/lp_1688615.asp
> 
> 
> I thought people were more interested in KVM these days? Why is Xen
> still interesting on the Linux platform? (I understand why on other
> Unices, KVM is highly dependent on Linux features, but this is a Linux
> users group mailing list)
> 
---
KVM ONLY works with chips that have virtualization extensions, and even then it has less-than-stellar performance due to the use of qemu(which is a nice tool, but quite slow) for the emulation layer.
XEN, VirtuaBox, VMWare are all much more mature and better performing, and all have much better support for diverse guest systems.  There are also a lot of tools and systems built on/for these products (Ganeti, VSMS, etc...).
There are also a lot of lighter approaches for Linux-on-Linux, such as OpenVZ (Virtuozzo) and Linux VServer, which can provide very impressive results with very little overhead.

The Free-Software world is about having many choices in a diverse software ecosystem, not having the latest new "shiny" take over from other great tools and technologies.

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