Re: Automatic Performance adjustment

[Jeffry Kennedy <jkennedy@xxxxxxxxxxxxx>]

I use QPFRADJ and our work load changes from heavy interactive to very heavy 
batch (short cycles) and it adjust fast
enough for use.

rob@xxxxxxxxx wrote:

> I prefer using QPFRADJ.  But, remembering from the debate, I think if your
> load changes drastically then it takes QPFRADJ awhile to catch up.  I think
> someone said that it will only adjust a certain amount within a certain
> time period to not swing too far one way or the other.
>
> Rob Berendt
> --
> "They that can give up essential liberty to obtain a little temporary
> safety deserve neither liberty nor safety."
> Benjamin Franklin
>
>
>                       "Ingvaldson, Scott"
>                       <SIngvaldson@xxxxxxx        To:       
> "'midrange-l@xxxxxxxxxxxx'" <midrange-l@xxxxxxxxxxxx>
>                       e.com>                      cc:
>                       Sent by:                    Fax to:
>                       midrange-l-bounces@x        Subject:  Automatic 
> Performance adjustment
>                       idrange.com
>
>
>                       02/27/2003 12:28 PM
>                       Please respond to
>                       Midrange Systems
>                       Technical Discussion
>
>
>
> I was curious about the Performance Survey last week.  I got the impression
> that the majority favored manual tuning of the system vs. automatic
> performance adjustment via QPFRADJ.  Personally, I have been a fan of
> QPFRADJ ever since it began using less than 1% of the CPU.
>
> 1.)  What can I do to manually tune the system, that QPFRADJ cannot do
> automagically?
>
> 2.)  Why would I want to spend time manually tuning the system when I can
> set up the basics and let QPFRADJ take care of the day to day(or hour to
> hour) fluctuations?
>
> Or does the majority favor setting QPFRADJ to 2 or 3?
>
> Scott Ingvaldson
> AS/400 System Administrator
> GuideOne Insurance Group
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