Performance problems with use SCOPE instruction?

Hi All!
We have application work with cube bases on SSAS 2008 R2. Also we use writeback function for change data in cube.
Now I'm looking bottleneck in our queries.
We have following MDX query(for example):
select
non empty{
([Date].[Date].[All].children
, [Forecast Type].[Forecast Type].[All].children
, [Stock].[Stock].[All].children
, [Shipment].[Shipment].[All].children
, [Invoice].[Invoice].[All].children
, [Way Bill External].[Way Bill External].[All].children
, [SD User].[User].[All].children
, [SD Date].[Date].[All].children
, [CD User].[User].[All].children
, [CD Date].[Date].[All].children
, [Forecast Basis].[Forecast Basis].[All].children
, [Orders].[Orders].[All].children
, [Rolling Forecast].[Rolling Forecast].[All].children
, [Long Range Forecast].[Long Range].[All].children
, [Calculated FCCR].[Calc Price].[All].children
, [Write Table Guids].[GuidObj].[All].children)
} dimension properties member_unique_name
, member_type
, member_value on rows
, non empty {({[Measures].[Price CR]
, [Measures].[Cost]
, [Measures].[Cost USD]
, [Measures].[Cost LME]
, [Measures].[Cost MWP]
, [Measures].[Weight]
, [Measures].[Weight Real]})} dimension properties member_unique_name
, member_type
, member_value on columns
from [MainCubeFCT]
where ({[Currency].[Currency].&[4]}
, {[Forecast Basis].[Customer].&[4496]}
, {[Forecast Basis].[Consignee].&[4496]}
, {[Forecast Condition].[Forecast Condition].&[1]}
, {[Forecast Basis].[Alloy].&[56]}
, {[Date].[Year Month].[Month].&[2015-05-01T00:00:00]}
, {[Date Type].[Date Type].&[2]}
, {[Forecast Basis].[Business Sphere2].&[4]}
, {[Forecast Status].[Forecast Status].&[2]})
Duration execution this query(Query end):
cold(after clear cache) - 1000
warm - 500
Max loss on Calculate Non empty event - 95%.
After some operations I found bottleneck in 2 measures: [Measures].[Weight], [Measures].[Price CR]
If them deleted from query then duration execution equals 50.
In our cube measure [Measures].[Weight] override in calculation as:
scope([Measures].[Weight]);
This = iif((round([Measures].[Weight], 3)<>0), round([Measures].[Weight], 3), null);
end scope;
But if I change code as
scope([Measures].[Weight]);
This = [Measures].[Weight];
end scope;
Performance query does not improve...
If delete this override from calculation in cube. I get good performance acceptable to me.
We need to keep the business logic and get acceptable performance.
What wrong in measures, calculations or query? Any ideas?
If need additional information let me know.
Many thanks, Dmitry.

Hi Makarov,
According to your description, you get performance issue when using SCOPE() statement. Right?
In Analysis Services, when using SCOPE() statement, it redefines that part of your cube space while the calculated member is much more isolated. In this scenario, I suggest you directly create a measure. Because calculated measure only returns values
where the amounts are recorded directly to the parent without including children values.
Reference:
Analysis Services Query Performance Top 10 Best Practices
Top 3 Simplest Ways To Improve Your MDX Query
Best Regards,
Simon Hou
TechNet Community Support

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>          and gjahr eq p_gjahr
>          and buzei in gr_buzei
>          and bschl eq '40'
>          and ktosl ne 'BSP'.
>
> UR's
> GSANA
Hi,
This is what I know and please if any expert think its incorrect, please do correct me.
BSEG is a cluster table with BUKRS, BELNR, GJAHR and BUZEI as the key whereas other key will be stored in database as raw data thus SAP apps will need to convert that raw data first if we are using other keys in where condition. Hence, I suggest to use up to buzei in the where condition and filter other condition in internal table level like using Delete statement. Hope its help.
Regards,
Abraham

Performance problem with Oracle

We are currently getting a system developed in Unix/Weblogic/Tomcat/Oracle environment. We have developed a screen that contains 5 or 6 different parameters to select from. We could select multiple parameters in each of these selections. The idea behind the subsequent screens is to attach information to already existing data/ possible future data that matches the selection criteria.
Based on these selections, existing data located within the system in a table is searched and those that match are selected. Also new rows are created in the table against combinations that do not currently have a match. Frequently multiple parameters are selected, and 2000 different combinations need to be searched in the table. Of these selections, only about 100 or 200 combinations will be available in existing data. So the system is having to insert 1800 rows. The user meanwhile waits for the system to come up with data based on their selections. The user is not willing to wait more than 30 seconds to get to the next screen. In the above mentioned scenario, the system takes more than an hour to insert the new records and bring the information up. We need suggestions to see if the performance can be improved this drastically. If not what are the alternatives? Thanks

The #1 cause for performance problems with Oracle is not using it correctly.
I find it hard to believe that with the small data volumes mentioned, that you can have perfornance problems.
You need to perform a sanity check. Are you using Oracle correctly? Do you know what bind variables are? Are you using indexes correctly? Are you using PL/SQL correctly? Is the instance setup correctly? What about storage, are you using SAME (RAID10) or something else? Etc.
Facts. Oracle peforms exceptionally well. Oracle exceptionally well.
Simple example from a benchmark I did on this exact same subject. App-tier developers not understanding and not using Oracle correctly. Incorrect usage of Oracle doing a 100,000 SQL statements. 24+ minutes elapsed time. Doing those exact same 100,000 SQL statement correctly (using bind variables) - 8 seconds elapsed time. (benchmark using Oracle 10.1.0.3 on a Sunfire V20z server)
But then you need to use Oracle correctly. Are you familiar with the Oracle Concepts Guide? Have you read the Oracle Application Developer Fundamentals Guide?

Performance problem with CR SDK

Hi,
I'am currently on a customer site and I have the following problem :
The client have a performance problem with a J2EE application wich call a Crystal report with th CR SDK. To reproduce the problem on the local machine (the CR server), I have developped a little jsp page wich used the Crystal SDK to open a Crystal report on the server (this report is based on a XML data source), setting the new data source (with a new xml data flow) and refresh the report in PDF format.
The problem is that the 2 first sequences take about 5 seconde each (5 sec for the opening report and 5 seconds for the setting data source). Then the total process take about 15 seconds to open and refresh the document that is very long for a little document.
The document is a 600Ko file, the xml source is a 80Ko file.
My jsp page is directly deployed on the tomcat of the Crystal Report Server (CRXIR2 without Service Pack).
The Filestore and the MySQL database are on the CR server.
The server is a 4 quadripro (16 proc) with 16Go of RAM and is totally dedicated to Crystal Report. For the moment, there is no activity on the server (it is also used for the test).
The mains jsp orders are the followings :
IEnterpriseSession es = CrystalEnterprise.getSessionMgr().logon("administrator", "", "EDITBI:6400", "secEnterprise");
    IInfoStore infoStore = (IInfoStore) es.getService("", "InfoStore");
    IInfoObjects infoObjects = infoStore.query("SELECT * FROM CI_INFOOBJECTS WHERE SI_NAME='CPA_EV' AND SI_INSTANCE=0 ");
    IInfoObject report = (IInfoObject) infoObjects.get(0);
IReportAppFactory reportAppFactory = (IReportAppFactory)es.getService("RASReportFactory");
ReportClientDocument reportClientDoc = reportAppFactory.openDocument(report.getID(), 0, null);
IXMLDataSet xmlDataSet = new XMLDataSet();
xmlDataSet.setXMLData(new ByteArray(ligne_data_xml));
xmlDataSet.setXMLSchema(new ByteArray(ligne_schema_xml));
DatabaseController db = reportClientDoc.getDatabaseController();
db.setDataSource(xmlDataSet, "", "");
ByteArrayInputStream bt = (ByteArrayInputStream)reportClientDoc.getPrintOutputController().export(ReportExportFormat.PDF);
My question is : does this method is the good one to do this ?
Thank's in advance for your help
Best regards
Emmanuel

Hi,
My problem is not resolved and I have'nt news from the support.
If you have any idea/info, don't forget me
Thank's in advance
Emmanuel

Performance problem with query on bkpf table

hi good morning all ,
i ahave a performance problem with a below query on bkpf table .
SELECT bukrs
           belnr
           gjahr
      FROM bkpf
      INTO TABLE ist_bkpf_temp
     WHERE budat IN s_budat.
is ther any possibility to improve the performanece by using index .
plz help me ,
thanks in advance ,
regards ,
srinivas

hi,
if u can add bukrs as input field or if u have bukrs as part of any other internal table to filter out the data u can use:
for ex:
SELECT bukrs
belnr
gjahr
FROM bkpf
INTO TABLE ist_bkpf_temp
WHERE budat IN s_budat
    and    bukrs in s_bukrs.
or
SELECT bukrs
belnr
gjahr
FROM bkpf
INTO TABLE ist_bkpf_temp
for all entries in itab
WHERE budat IN s_budat
    and bukrs = itab-bukrs.
Just see , if it is possible to do any one of the above?? It has to be verified with ur requirement.

Performance problems with use SCOPE instruction?

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