RE: V5R3 Performance Issue

["Wilt, Charles" <CWilt@xxxxxxxxxxxx>]

That is basically the answer IBM gave.

But the fact remains that v5r2 was officially supported on the model 400.

It was however the last release supported on the model 400.

Don't understand IBM's thinking, but I know I didn't appreciate an upgrade to 
the last supported release to so negatively affect the performance of the box 
without warning.

Luckily for us, as I said in the original post, the 400 was one its way out.  
But what if it hadn't been?
 

Charles Wilt
iSeries Systems Administrator / Developer
Mitsubishi Electric Automotive America
ph: 513-573-4343
fax: 513-398-1121
 

> -----Original Message-----
> From: midrange-l-bounces@xxxxxxxxxxxx
> [mailto:midrange-l-bounces@xxxxxxxxxxxx]On Behalf Of Al Barsa
> Sent: Friday, May 20, 2005 9:51 AM
> To: Midrange Systems Technical Discussion
> Subject: RE: V5R3 Performance Issue
> 
> 
> 
> With no disrespect, I don't think that a model 400 is 
> supposed to support
> V5R2.
> 
> Al
> 
> Al Barsa, Jr.
> Barsa Consulting Group, LLC
> 
> 400>390
> 
> "i" comes before "p", "x" and "z"
> e gads
> 
> Our system's had more names than Elizabeth Taylor!
> 
> 914-251-1234
> 914-251-9406 fax
> 
> http://www.barsaconsulting.com
> http://www.taatool.com
> http://www.as400connection.com
> 
> 
> 
>                                                               
>              
>              "Wilt, Charles"                                  
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>              05/20/2005 07:14                                 
>      Subject 
>              AM                        RE: V5R3 Performance 
> Issue          
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> 
> 
> 
> What hardware do you have?
> 
> I saw a significant decrease in performance after moving from 
> v5r1 to v5r2
> on a model 400 at my last position.
> 
> IBM determine that basically I was SOL as the OS had been 
> optimized for the
> newer hardware.  Luckily, the move to v5r2 was just in 
> preparation for the
> install of a new 270.
> 
> Charles Wilt
> iSeries Systems Administrator / Developer
> Mitsubishi Electric Automotive America
> ph: 513-573-4343
> fax: 513-398-1121
> 
> 
> > -----Original Message-----
> > From: midrange-l-bounces@xxxxxxxxxxxx
> > [mailto:midrange-l-bounces@xxxxxxxxxxxx]On Behalf Of Scott Klement
> > Sent: Friday, May 20, 2005 4:35 AM
> > To: Midrange Systems Technical Discussion
> > Subject: Re: V5R3 Performance Issue
> >
> >
> > Hello,
> >
> > > We installed V5R3 a couple of weeks ago.  Since then one of
> > our nightly
> > > critical path jobs has more than doubled in run time.
> >
> > I know I'm joining this discussion late (I haven't been able
> > to keep up
> > with e-mail this week) but I just wanted to say that I've 
> been having
> > similar experiences with V5R3.
> >
> > Since upgrading from V5R2 to V5R3, pretty much everything on
> > the system is
> > slower.  I don't mean just SQL or just database -- pretty
> > much everything
> > is slower.
> >
> > I suspect that my problem is lack of memory -- that V5R2 used
> > less memory
> > than V5R3 and that the difference happened to matter on my
> > machine, since
> > I haven't heard anyone else opine that V5R3 is slower.
> >
> > Unfortunately, I've been too busy to find that out for sure.
> > If you come
> > up with a good solution to your speed problems, please post
> > them here. I'd
> > be interested to see what you learn...
> >
> > --
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