Re: [Xen-users] Re: [Xen-devel] SLA Monitoring of XEN DomU's

[Ahmad Hassan <ahmad.hassan@xxxxxxxxx>]

Tim, Thanks for the details. I will definitely have a go at Xguests. Apart from monitoring CPU and Network traffic, I am also curious to know the logging for DomU's activities at the Dom0 level. Do you know any work in logging domU's area?

I know about one study which was conducted by INRIA to intercept the DomU's system calls at the Dom0 level. But that implementation was not generic so they did not pursue it further.

Do you aware of any tools for logging domU's?

Thanks.
 
Best Regards, Hassan
http://cern.ch/ahmadh/portfolio

Erasmus Student
The University of Reading, UK
Aristotle University of Thessaloniki, Greece

The University Of Carlos III, Madrid Spain

2010/1/4 Tim Post <echo@xxxxxxxxxxxx>

Sorry for top posting,

At the time I wrote xguests, the sysfs path to determine VBD read /
write / out of requests was in the air. As such, I did not include it.
Adding that is now trivial and an exercise for the reader.

Use it as a (hurried) example to hack the tools you need into working.

Cheers,
--Tim

On Mon, 2010-01-04 at 15:33 +0000, Ahmad Hassan wrote:

> Yeah you are absolutely rite. Do you know any means to record the CPU
> consumption and IO consumption of DomU's on Dom0?
>
> Thanks for the help.
>
> Best Regards, Hassan
> http://cern.ch/ahmadh/portfolio
>
> Erasmus Student
> The University of Reading, UK
> Aristotle University of Thessaloniki, Greece
> The University Of Carlos III, Madrid Spain
>
>
>
> 2010/1/4 Tim Post <echo@xxxxxxxxxxxx>
>         On Mon, 2010-01-04 at 15:11 +0000, Ahmad Hassan wrote:
>         > Thanks for the replies. So I can use either use SNMP
>         monitoring using
>         > CACTI or http://www.pmacct.net for Network traffic
>         monitoring of
>         > DomU's.
>         >
>         > What about CPU availability guarantees for DomU's?
>         >
>         > By SLA guarantees, I mean to say that Whether I can proof
>         and show to
>         > the owner of DomU's that you are getting the exact bandwidth
>         and CPU
>         > you asked for.
>
>
>         To do that, give them root access to dom-0 and let them see
>         their
>         running configuration.
>
>         Beyond that, there is no proof that can't be tainted. Welcome
>         to
>         hosting :)
>
>         How would you give someone proof that they are one of only
>         five accounts
>         on a shared server?
>
>         You might want to encourage clients to monitor iowait while
>         doing brief
>         disk operations (i.e. dd) if they are morbidly curious,
>         provided that
>         the backing storage is fast enough to keep up with the vcpus
>         that xen is
>         presenting.
>
>         BTW, removing xen-devel from the CC list, this is strictly a
>         question
>         for xen-users.
>
>         Cheers,
>         --Tim
>
>
>

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

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