Performance Issue with Webi report uses SAP BI Query as the data source

Hello.
I have created a Webi ad-hoc report which connects to a SAP BI query through BO OLAP universe.
The layout of Webi is the exactly the same as the BI query.  There are filters in the Webi to restrict the number of data extraction, but even with data result of 5000 rows, it took about 30 seconds.
If I execute the BI query with the same filter restriction, it tooks less than 10 seconds.
It seems that large percentage of time is consumed at the MDX part.
Is there any tuning method that could speed up the process time of MDX?
Thank you.
Justine
Edited by: Justine Liu on Mar 18, 2009 6:59 AM

Hi,
please take a look here:
[https://service.sap.com/sap/support/notes/1142664] (Look under related notes)
It includes references to various performance improvements of the MDX interface. From what I saw there it is advisable to upgrade your SAP BI (7.0)  up to at least Support Package 21 (you are currently on SP 15).
This may also be interesting for you: There is a new Fix Pack 1.4 coming out for BOBJ XI 3.1. Combined with the related SAP Enh.Pack (not sure about the version of this one) should also improve WebI performance. This fix pack is not yet officially released though but it should not take look.
I recommend that you try the upgrade to Support Package 21 first.
BTW it is also advisable to take a look in the results of your MDX query (e.g using the MDXTEST transaction). You should make sure that your query is indeed restricted as expected. Sometimes the results you see in SAP native reporting tools (e.g. BEx Analyzer) differ from those returned from the MDX component, depending on the way variables/restrictions where defined in the query designer. It is all about making sure that there is no apples/oranges comparison here.
Regards,
Stratos

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