Re: Performance tuning suggestions

At 11:53 PM 2/21/98 -0500, you wrote:
>>Spankedy, spank!  Yes, performance opinions are like (well, you know) and
>>others will probably disagree (although the latter seem to always have a
>>maxed-out system) _HOWEVER_, I _STRONGLY DISAGREE_ with setting any value
for
>>QPFRADJ other than ZERO (zip, null, nada) for a 9406 system.
>
>>Dean Asmussen

Sorry Dean.  I strongly disagree.  If your system is adequately sized (and
with the recently announced price/performance of the new models, there's no
excuse for an undersized system anymore).  QPFRADJ should be set to 3.
Note however, when doing an upgrade (CPU, CISC to RISC, or adding memory),
you must change it to 2 for the first IPL.

I have systems as small as a D10 and as large as the largest 650 in the
world that work well with this set to 3.  BTW, the the latest
announcements, every RISC AS/400 currently being sold is a 9406, except for
the model 150 which is a 9401.

This is a controversal point.  You may not realize it, but IBM is improving
autp tuning with every release!  If you haven't looked recently, do a
WRKSHRPOOL command, and then do an F11!

Give it a try.

Al



Al Barsa, Jr. - Account for Midrange-L
Barsa Consulting, LLC.  
400 > 390

Phone:  914-251-9400
Fax:    914-251-9406





Private mail should be sent to barsa@ibm.net
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