[CentOS] how to optimize CentOS XEN dom0?

[Ross Walker]

On Feb 25, 2011, at 9:28 AM, Rudi Ahlers <Rudi at SoftDux.com> wrote:

> On Fri, Feb 25, 2011 at 4:21 PM, Ross Walker <rswwalker at gmail.com> wrote:
> 
> 
>> 
>> It seems dom0's memory got under pressure from the other domUs.
>> 
>> Make sure to set an absolute minimum of memory for dom0 in xend.conf or using the boot option (forgot what it is). I always made it to the OS min of 256MB, but if you are doing more in dom0 you'd want more.
>> 
>> On a side, I might run all management apps in a VM and manage dom0 from that domU.
>> 
>> 
>> -Ross
>> 
>> _______________________________________________
> 
> 
> I already set dom0 to 512MB, but it seems it might not be enough. I
> was hoping I could optimize it a bit more though

Try setting the max as well, then it's memory allocation is fixed, say 512/512. Then the only memory pressure is between apps in dom0.

-Ross