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12739 - Performance on 46C
rdisp/max_wprun_time - Maximum work process run time CL_GUI_FRONTEND_SERVICES - Frontend ServicesThis documentation is copyright by SAP AG.
Performance on 46C
We are on a new iSeries 825 with 3 cpu's and 6gb ram 450gb disk and ourperformance is very poor at times. We are still in development with data loads
going
on but there are only 30 people on the system. The network people say its the
AS/400 and the AS400 people say its the network. Maybe it's both.
On the AS/400 I show very little usage when I look at the usual commands:
WRKACTJOB, WRKSYSSTS, WRKDSKSTS. Disk usage 60-63%.
When I display the joblog for one of the SAP sessions using the green screen I
see the following:
Duplicate key value specified.
Duplicate record key in member ALCLASTOOL.
Duplicate key on access path.
Duplicate key on access path.
Duplicate key value specified.
Prepared statement IUYAAA3FCA not found.
Prepared statement IRyAAAdGBA not found.
Duplicate record key in member TPLOG.
Duplicate key on access path.
Duplicate key on access path.
Duplicate key value specified.
Thousands of records in the 24 sessions that are running, Dialogue, batch,
spool, etc.
Can this be a problem? Can I look somewhere else for the problem?
Thanks,
Darrell D. Doyle
Chief Information Officer
713.590.7025
-----Original Message-----
From: Volker Gueldenpfennig [mailto:volker.gueldenpfennigZsap.com]
Sent: Wednesday, January 28, 2004 10:35 AM
To: DoNotReply@consolut.eu
Subject: Re: Performance on 46C
Hi Des,
unfortunately you "downgraded" your system in terms of performance
per CPU. As 4.6C needs a lot longer on the CPU, the CPU times have
increased a lot. On same hardware it is nearly factor 2 and you
downsized the hardware and therefore see slower times.
Sorry, but an 4.6C system was not designed for an S30 ...
For new SAP releases you always need newer and therefore FASTER CPUs
in order to have a useful responsetime per user even when the system
may be large enough in order to support the workload.
Regards
Volker
--- In DoNotReply@consolut.eu, desmond_olwageZg... wrote:
>
>
>
>
> Hi group.
>
> We recently upgraded our DEV system from 3.1i to 4.6C. Prior to the
> upgrade, our DEV system was migrated from a model 730 2-way
processor with
> 8 GB RAM and about 290 GB disk to a model S30 8-way processor with
12 GB
> RAM and about 700 GB disk.
>
> After the upgrade to 4.6C, the average dialog response times on the
system
> have dropped from around 400 ms to around 1300 ms (3 times!)! When
checking
> the performance data in OS06, I see that the average CPU time alone
is in
> the region of 800 ms.
>
> Does anyone have an idea as to why this huge degradation in
performance has
> occurred? Is it normal for this degradation when upgrading to a 46C
system?
> Any ideas as to what I can check or change to improve this please?
>
> Thanks in advance for any assistance!
>
> Regards,
>
> Des Olwage
> Snr. Systems Administrator
> Goodyear South Africa
> Tel. +27 41 5055441
> Fax +27 41 5811195
> Cell. +27 82 824 6900
Have a look to our homepage at: http://www.consolut.net
DoNotReply@consolut.eu
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