>>> On 11/13/2014 at 06:26 AM, "Guest, Darren" <[email protected]>
wrote: 
> Hi all,
> 
> Our Linux team has just upgraded some of our SLES11 SP1 systems (running 
> under z/VM 6.2 on a zEC12) to SP3. The systems run Oracle and the Oracle test 
> bods report that Oracle is now 10-20% slower. They identified Oracle SR 
> 13074706 and applied it. Although that helped, they still think the system is 
> slower since moving to SP3.

Do they have any performance measurement data to back that up?

> Has anyone else experienced any performance degradation after a move to SP3, 
> and how did you resolve?

IBM submits quite a few performance enhancing feature requests for each service 
pack we produce.  I would be surprised if there was a significant performance 
degradation in SP3, particularly with Oracle.  All of the IBM presentations 
I've seen say that in general, things are better.

Have you opened a support request with your support provider about this?  If 
you have not yet, they're going to want real data when you do open one.  Hand 
waving/wringing from the Oracle support team isn't going to be sufficient.


Mark Post

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