Re: [Xen-users] ntpd under Xen Dom0 exhibits extremely high jitter/noise? runs stable/quiet under non-xen kernel.

["Fajar A. Nugraha" <fajar@xxxxxxxxx>]

On Fri, Jan 15, 2010 at 10:11 AM, mail ignored <0.bugs.only.0@xxxxxxxxx> wrote:
> xm vcpu-list Domain-0
>  Name                                ID  VCPU   CPU State   Time(s) CPU 
> Affinity
>  Domain-0                             0     0     0   -b-      31.5 0
>  Domain-0                             0     1     1   r--      24.6 1

With my setup, it's like this
# cat /proc/cpuinfo | grep processor
processor       : 0

# xm vcpu-list 0
Name                                ID  VCPU   CPU State   Time(s) CPU Affinity
Domain-0                             0     0     0   r--   93253.0 0
Domain-0                             0     1     -   --p     579.8 1
Domain-0                             0     2     -   --p      11.4 2
Domain-0                             0     3     -   --p       8.0 3
Domain-0                             0     4     -   --p       8.0 4
Domain-0                             0     5     -   --p      13.5 5
Domain-0                             0     6     -   --p      11.7 6
Domain-0                             0     7     -   --p      10.0 7

the benefit is that I can hotplug other cpus to dom0 if necessary later.

> the point remains, however, that ntpd withOUT xen's presence, on
> any/all hardware I have, runs quiet & stable.  clearly, "xen" is
> involved.  whether it's the opensuse implementation of kernel-xen or
> Xen, or something inherent in Xen's design, is unknown atm ...

Hope you can solve this problem. When you do, please share your results.

-- 
Fajar

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