Have you tried using powertop to investigate? Sure the tool was intended on
tracking power consumption, but it's very useful for seeing what is waking
up your guests.

Just a thought...

On Fri, Apr 27, 2012 at 2:28 PM, Srivastava, Sagar <ssrivast...@iso.com>wrote:

>
>
>
>
> We implemented latest patches on our SLES11 SP1 systems recently
>
>
>
> Now all the zLINUX guest are using almost 8 - 10 IFL mips  extra per
> Guest - that is increasing our load on the z/VM LPARs by 300 mips .
> Unfortunately this is not so visible from the guest level and hence
> difficult to find the culprit process/component. We have around 35
> guests per LPAR.
>
>
>
>  I know there is some degree of overhead with patching and security -
> but this seems excessive.
>
>
>
> Our workload is primarily websphere/java applications type.
>
>
>
>
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> I have tried:
>
> 1) investigating top/sar etc command and process lists
>
> 2) checked Omegamon-can pinpoint nothing yet
>
> 3) several linux commands tools to (iostat/mpstat/iptraf etc but can
> find nothing.
>
>
>
>
>
> Any insight from the gurus? Has anyone noticed this situation? Thanks
> for going through my long note.
>
>
>
> Sagar Srivastava
>
> ISO,
>
> jersey city
>
>
>
>
>
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