Re: [Xen-users] Virtualization and monitoring

[Massimo Canonico <mex@xxxxxxxxxxxx>]

Hi Niels,

On 07/11/2012 09:38 AM, Niels Dettenbach wrote:

Am Mittwoch, 11. Juli 2012, 11:29:03 schrieb Massimo Canonico:

I've measured the cpu load by using "top" linux command. I've also tried 
with some monitoring tools like Munin/Collectd but I always get weird 
values.

It seems you've runned into a typical misunderstanding of the xen 
architecture.

If you use "top" or other system monitorings on Dom0 then you just (!!!) 
measure the Dom0 parameters / load. Dom0 is just ONE of the xen domains, 
"just" privileged".

There are different ways to get out the machine load out from xen - i.e. 
xentop.

You might compare "top" and "xentop" results on your Dom0 for understanding 
the difference.

Thank you very much for this clarification.
Just one more question: are you aware of any monitoring tool able to get out the machine load out from xen (besides xentop)?

I've tried Munin/Collectd with no luck.

Cheers,
 Massimo

hth
best regards,



Niels.

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