<p>Hi,</p>
<p>We developed and support for years now a software product for tech support centers that uses KVM as a hypervisor.</p>
<p>One installation at Canon in Japan runs 35 concurrent Vista/win2k/xp and soon Win7 instances. </p>
<p>Each session is about a minute long (it is used by tech support people to help them guide clients to solve problems over phone/email. Sessions are accessed by users via VNC in their browser. There are 2000 such sessions a day.</p>
<p>The start time for a new session with Vista (the heaviest OS) and an application ona loaded is between 6 to 9 seconds (well, let's say we are also have some resposability to this specific ability as upstream KVM doesn't do that.</p>
<p>The perfomance, stability and flexability are unparalleled. They enabled us to develop a unique enterprise ready virtualization platform in record time and a cost which is lower then the license fees of a big installation of propritery solution for a single year.</p>
<p>Xen and VirtualBox are nice and have their uses, but KVM is amazing.</p>
<p>Gilad</p>
<p><blockquote type="cite">On Sep 16, 2009 3:14 PM, "Amos Shapira" <<a href="mailto:amos.shapira@gmail.com">amos.shapira@gmail.com</a>> wrote:<br><br>2009/9/16 Gilad Ben-Yossef <<a href="mailto:gilad@codefidence.com">gilad@codefidence.com</a>>:<br>
> Don't mean to dis Xen or anyone, but...<br>
><br>
> You can drop the "eventually". KVM rocks :-)<br>
<br>
Care to give more details? Especially compared to Xen?<br>
I googled for "kvm vs. xen" but all the links I found so far talk<br>
about KVM's potential (and are a bit outdated).<br>
A view by someone who actually got their hands on it would be valuable.<br>
<br>
We use CentOS almost exclusively, though being able to run the odd<br>
Windows Server 2003 instance might be interesting to support legacy<br>
parts of our system.<br>
<br>
Thanks,<br>
<font color="#888888"><br>
--Amos<br>
</font></blockquote></p>