Re: [Xen-users] Xen scheduler?

[Emmanuel Ackaouy <ack@xxxxxxxxxxxxx>]

This is quite odd.

What version of Xen are you running?

What is the state of this "starved" domU as reported by xm top?

When you say its processes time out, what are these processes
and what do they do? Are your domUs doing CPU intensive work
or I/O?

Cheers,
Emmanuel.

On Sun, Nov 12, 2006 at 01:14:29AM -0500, Ott, Donna E wrote:
> I've been testing some applications with Xen.
> I'm seeing something odd and wondering if it's a bug with a fix
> somewhere.
> Basically, if I'm running 3 or 4 domUs on my 2way server (2vcpu,
> 2virtualGB,real disks)
> I find that the scheduler (using xm top) either runs amazingly evenly
> dividing up the 
> Cpus well, or it starves one of the domUs to the point where its
> processes time out while still balancing the others sweetly.
> This seems pretty odd and I cannot seem to find a pattern to the
> "starving" as it seems
> To occur somewhat randomly.
> 
> Any hints ideas or suggestions ?
> 
> Thanks!
> 
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