WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-users

Re: [Xen-users] Frequent para (Linux) domU hangs

On Fri, Oct 16, 2009 at 10:01:40AM +1300, Jan Bakuwel wrote:
> Hi Pasi,
> 
> > Just a thought; have you set up xen domain weights so that dom0 will
> > always have cpu time to process IO requests properly? ie. dom0 gets more
> > cpu than domUs.
> >   
> 
> Thanks for the tip - that makes sense. I did indeed not have domain
> weights set up - now I have.
>

Ok.

> There are several posts on the Internet saying that if dom0 has the same
> weight as the domU's (which is the default: 256), you may have serious
> trouble with domU's under high load. Wouldn't it make sense that dom0 by
> default would have a higher weight?
> 

Maybe.. then again some people do it differently; they dedicate a single
core only for dom0, and use the other cores for domUs.

-- Pasi


_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users