Re: 170's performance after V5R1 - IPL fixes

[sjones@xxxxxxxxxxxxxx]

Chris:

You are correct concerning CFINT when working correctly.  IBM released a
PTF to try to stop 3rd party vendors from allowing your I-Series to run
interactive jobs as batch jobs to gain performance. The PTF has since been
superseded, because  It was causing CFINT to run improperly.

I am still searching for the PTF that needs to be applied.  I do know that
if you have applied CUM C2071510 for V5R1 it will be in there.

This may not be the problem, but just something to look into.

Steve Jones




                      Chris.Whisonant@co
                      mporium.com               To:       domino400@midrange.com
                      Sent by:                  cc:
                      domino400-admin@mi        Fax to:
                      drange.com                Subject:  Re: 170's performance 
after V5R1 - IPL fixes


                      11/18/2002 10:15
                      AM
                      Please respond to
                      domino400





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The CFINT jobs should only kick in if actual interactive jobs are
exceeding the threshold of the interactive feature. This is all part of
IBM's interactive tax. The magnitude of the jobs has changed over the
releases of 4.4, 4.5, and 5.1. There likely isn't a PTF to fix this though
I wish there were.

Chris Whisonant
Comporium
Senior Mid-Range Systems Administrator
IBM CS AS/400 System Administrator
803.326.7270 (W)
803.326.6142 (F)
chris.whisonant@comporium.com





sjones@hpproducts.net
Sent by: CWHISONANT@InfoAve.Net
11/18/2002 09:25 AM
Please respond to
domino400@midrange.com


To
domino400@midrange.com
cc

Subject
Re: 170's performance after V5R1 - IPL fixes







Look for a job named CFINT running when you see high cpu usage.  Our IBM
rep had a couple customers who recently upgraded have a problem with high
cpu usage after the upgrade.  I can't find the PTF number that may fix
this, but if I do find it I will send it.



Steve Jones




                      "Mark Villa"
                      <markvilla@knolog        To:
<domino400@midrange.com>
                      y.net>                   cc:
                      Sent by:                 Fax to:
                      domino400-admin@m        Subject:  170's performance
after V5R1 - IPL fixes
                      idrange.com


                      11/16/2002 09:35
                      PM
                      Please respond to
                      domino400





We can IPL to restore performance, but eventually, within a week,
something
magical happens and slows down interactive response to about 1 minute and
a
steady 93.1 CPU usage with very little to indicate what it could be, other
than internal code. I can't spot a resource shortage that would cause
this.

We are using the system with light HTTP loads, no domino services are
running at the moment even though a DSD version.
We don't do anything fancy or heavy that you would think would cause this,
or anything new since V4R5.

Not on the latest CUM yet.

My question is, did someone here fix this condition with a particular PTF?

Thanks for any suggestions.

Mark Villa in Charleston SC

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