Skip to Content
avatar image
Former Member

Slow response Times for transactions relating to Solution Manager

Hi all,

We recently installed a solution manager 4.0 system on one of our i570 hardware.

We have noticed that the response times for transactions relating "typically" to solution manager are a little slow(response times between 3-4 seconds) and sometimes very slow( sometimes like 12-13 seconds)...Its very random...Are these transactions typically like these ?

The transactions we are referring to are :

1) SOLAR_PROJECT_ADMIN - Project Administration (esp when we try to select a project and double click on it to edit/display the project)

2)RMMAIN - Roadmap

3)SOLUTION_MANAGER - Solution Operation

The way we have thing system configured is that we have assigned separate memory pools to the ABAP stack and JAVA stack...via the routing entries for the jobs in the subsystem description.

One thing, which we though have noticed that inspite of the system being up and used for almost a 4-5 days..the hit ratio for the Initial Records Nametab buffer is an abysmal 4-5%. The settings for initial Record buffer is:

rsdb/ntab/irbdsize 13500 kB

rsdb/ntab/entrycount 45000

Shouldn't the hit ratio for this Initial Records Nametab buffer be close to a 96-98% or better...We are wondering if this has anything to do with this..but then on the other hand, the other "basis" transactions run just within half a second.

There are no swaps anywhere in the system in ST02.

We have tried implementing the latest support stacks on both the ABAP/JAVA stacks as well as the PTF's, but it looks like something else.

Any ideas on this, anyone?

Thanks for all your help.

Abhi

Add comment
10|10000 characters needed characters exceeded

  • Get RSS Feed

3 Answers

  • Best Answer
    Aug 15, 2007 at 12:06 PM

    I have seen this too - we use the Support Desk and as of now I was not able to find out, why it´s working sometimes very slow and sometimes very fast.

    The box is a 4 CPU Opteron with 24 GB of RAM, there´s still RAM free/not used.

    I also see a likewise behaviour on a CRM system when using transaction CRMD_ORDER, I believe it´s just "by design".

    --

    Markus

    Add comment
    10|10000 characters needed characters exceeded

  • avatar image
    Former Member
    Aug 15, 2007 at 04:06 AM

    Hi Abhi,

    unfortunately I have seen these performance issues on all platforms by now ;-(

    As customers typically do not use this tool, I never investigated that. To me it sounds a bit that the ABAP Web-Dynpro is pretty ressource intensive and the SolMan Transactions might need some performance improvent in general.

    As you talk on "random", the question would be:

    Might it be possible, that especially the 10-12s happen after that you didn't use it for several minutes ?

    To me it sounds, that SolMan is VERY RAM hungry and therefore is VERY dependent on the fact if it is paged in or not. As I imagine, that the ABAP WPs are running in Pool 2, this competes against all other SAP systems (and you most likely use more or less ABAP only in SolMan). Therefore all other SAP systems compete against this one ...

    Did you deactivate RSDB_TDB in TCOLL from daily twice to weekly once on all systems on this box already ?

    btw:

    I do have 11% hit ratio in the Initial Records only, too ...

    Just the first few cents based on your info,

    Volker Gueldenpfennig, consolut.gmbh

    http://www.consolut.de - http://www.4soi.de - http://www.easymarketplace.de

    Add comment
    10|10000 characters needed characters exceeded

    • Former Member Former Member

      Hi Abhi,

      I would agree to you, that it might make sense in your environemnt to move ABAP into an own pool - I would even think on ABAP into an own pool and Java back to pool 2 as it is not that often used ...

      Have a look at 7am and 8pm to the data of ST06 of this box!

      I can promisse you:

      LOW CPU usage and HIGH page faulting !!!!

      => this job RSDB_TDB is THE RAM killer par excellance !

      (but this is just a small part of your issue)

      As mentioned, please move ABAP into its own 7-12GB and try again - then it will become better in my eyes ...

      Regards

      Volker Gueldenpfennig, consolut.gmbh

      http://www.consolut.de - http://www.4soi.de - http://www.easymarketplace.de

  • Aug 16, 2007 at 12:53 PM

    Hi.

    If this performance problems are platform independent (as Volker said) then it might be an idea to look for answers in the SAP Solution Manager. Seems to me that they are a quite active community over there too.

    Best regards,

    Jan

    Add comment
    10|10000 characters needed characters exceeded

    • Former Member

      Hi Jan,

      Thanks for the response..I will try geting their (Solution Manager Forum) thoughts on this one as well.

      Thanks

      Abhi