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I have a dom0 with 2 x Quad-Core Intel Xeon CPUs and 16GB of RAM. I also have close to 30 domUs running - on this particular system, most of them are Windows XP HVM domUs. The system works just fine - it actually still has some capacity to spare on it. My XP domUs only have 384MB of RAM each assigned to them, so I have quite a few GB of RAM left on the system. I also have a few PV domUs running Linux on the system.
-Nick
>>> Heiko <rupertt@xxxxxxxxx> 2009/01/05 23:57 >>>
On Mon, Jan 5, 2009 at 2:52 PM, Thomas Halinka <lists@xxxxxxxxx> wrote:
> Hi Heiko,
>>
>> we have some dom0 running on 8 core Intel XeonCPU E5345 2.33GHz with 8GB Ram,
>> right now we have only 1GB to 2GB free on each dom0 and mostly only 3VM running.
>> Would it be possible for us to go to 16GB and add another 3-4 VM, or
>> go to 32GB and run up to 12VM on one machine?
>> Im not sure we activily use the VM Support that these CPU/Server come
>> with, how can I find more info about this out of xen?
>
> I have dom0 with 30 domUs and more in Production - no Problem. You have
> to care about your xm start/stop-behaviour because of the memory.
>
>>
Hello,
what are the specs of your system, how much rum and CPU do you have?
What exactly do you mean with the xm start/stop-behaviour?
>> Just thinking about what will be possible on our current hardware. Im
>> doing some RTG with cacti from our dom0 and the domU,
>> but the dom0 doesnt draw the network/cpu usage that the domU?s use,
>> are there more ways to get performance/usage infos?
>
> write your own plugin using xm top.
>
Well,
when I look at xm top, the VM dont even take 1% in CPU usage most of
the time, and between 12% and 40% of the memory,
The dom0 CPU jumps to sometimes to 10%
when I can trust these values there is a lot ,more we can do on these
machines with some more RAM.
cheers
>> greets
>
> Regards,
>
> Thomas
>
>
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