BI 7 Report performance slow

Hi All.
In BI 7, sales delivery report performance is prety slow. Previously it took 5 mins to execute the report, but now a days it is taking morethan 30 mins. Ithe prob is OLAP time.
Vasu

Hi,
Please run the query in RSRT>Execute and Debug>Display Statistics Data.
and also search there are lots of useful material available in the forum for query performance
Check these threads:
http://help.sap.com/saphelp_nw04s/helpdata/en/44/70f4bb1ffb591ae10000000a1553f7/frameset.htm
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/3f66ba90-0201-0010-ac8d-b61d8fd9abe9
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/e0e6a6e3-0601-0010-e6bd-ede96db89ec7
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/cccad390-0201-0010-5093-fd9ec8157802
Thanks-RK

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Oracle Report Performance Slow

I have a report which extracting the data from few complex queries and most of the tables that this report using are large tables.
The problem I'm facing is the entire application become very very slow/hang whenever this report being runned.
I have index all the necessary fields and process the report using those indexed field but still can't help.
Is there anyway to improve the performance? Will it help if I combine all the queries into one query?
How about the Database? any configurations can be set?
Regards,
Cheong

The execution of the query doesn't depend on Reports, it is done in the database. So, check your query using the normal performance tuning tools.
If just your report is slow (i.e. not the query) it could be because you have extensive formatting in your report. Formatting is done by Reports, not by the database. Try to do as much formatting in the query.

Slow report performance when filter by 1 date

Post Author: poh_michelle
CA Forum: Formula
Record selection formula : {PartTran.TransDate} in {?FromDate} to {?ToDate}
Report performance was okay when i select #08/10/2007# for {?FromDate} and #10/10/2007# fro ; report displayed within 5 seconds.However, the report slow down wehn i select same date (#10/10/2007#) for both {?FromDate} and {?ToDate}; report displayed after 20 minutes.
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Post Author: foghat
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Not sure why selecting a single date would slow down your report. Are you sure something else wasn't/isn't going on? You could give this a try: {PartTran.TransDate} >= {?FromDate}and {PartTran.TransDate} <= {?ToDate}

Report performance and data quality

Hi,
Can someone help give explanations to following questions :
1.) Does BW Report show how current is my data?
2.) What are the reason why the performance of my BW Report is slow?
3.) What are the reason why my BW Report is have missing data?
4.) Why is my BW Report have incorrect data?
5.) Why doesnu2019t my BW Report Data match SAP R/3 Data?
Thanks,
Milind
Please do not raise generic questions across multiple forums
Edited by: Arun Varadarajan on Apr 9, 2010 2:08 AM

Milind,
1.) Does BW Report show how current is my data?
You should be able to see the data currency when you run in the web - which method are you using - BEx or Web...?
2.) What are the reason why the performance of my BW Report is slow?
It could be due to anything - please search the forums for the same on how to identify possible performance bottlenecks
3.) What are the reason why my BW Report is have missing data?
It depends - Missing data loads etc etc
4.) Why is my BW Report have incorrect data?
You should be knowing that...? I can just say that it has incorrect data because ...." The sun rises in the east...".!!! more akin to asking "Why did the chicken cross the road"
5.) Why doesnu2019t my BW Report Data match SAP R/3 Data?
You should ask SAP that question...
Honestly I am not sure what the reason behind such generic questions are.... if you are looking for answers - then you need to be more specific - if these are more like Interview Questions asked to you - I guess you should be able to answer them or ask further questions to clarify the question further....

Item/Drill Report Performance hinderance

I am having a problem with report performance. I have a report that I have to have 5 drop down menus on top of the report. It seems the more drop down menus I add, the slower the response time when the report is actually navigated. One of the drop downs has over 1,000 options, but the other 4 drop down menus have 4-5 options. Is there a way to improve performance?

And this is different from yesterday how?
Please help, Discoverer Performance.
Russ provided a few possible reasons, and asked for a bit of detail. Instead of asking the same question again, respond to Russ and others, and provide a bit more information to how things are set up.

Crystal Report Performance for dbf files.

We have a report which was designed 5 -6 years ago. This report has 4 linked word doc and dbf file as datasource. This report also as 3 subreports. The size of field in dbf is 80 chars and couple of field are memo field. The report performance was excellent before we migrated the crystall report to 2008. After CR2008 the system changed and it is suddenly really slow. We have not change our reports so much it should have an influence on performance. When the user presses the preview button on printing tool window the control is transferred to Crystal. Something has happened inside black box of Crystal ( IMO ). the dll we have are crdb_p2bxbse.dll 12.00.0000.0549 . The issues seems to be of xbase driver (not possible to use latest version of crdb_p2bxbse.dll and dbase files with memo fields).

Hi Kamlesh,
Odd that the word doc is opened before the RPT, I would think that the RPT would need to be opened first so it sees that the doc also needs to be opened. Once it's been loaded then the connection can be closed, CR embeds the DOC in the RPT so the original is no longer required.
Also, you should upgrade to Service Pack 3, it appears you are still using the original release. SP1 is required first but then you should be able to skip SP2 and install SP3.
You did not say what earlier version of Cr you were using? After CR 8.5 we went to full UNICODE support at which time they completely re-built the report designer and removed the database engines from the EXE and made them separate dll's now. OLE objecting also changed, you can use a formula and database field to point to linked objects now so they can be refreshed any time. Previously they were only refreshed when the report was opened.
You may want to see if linking them using a database field would speed up the process. Other than that I can't suggest anything else as a work around.
Thank you
Don

BW Report Performance, Accuracy of Data

Hi,
Can someone help give explanations to following questions :
1.) Does BW Report show how current is my data?
2.) What are the reason why the performance of my BW Report is slow?
3.) What are the reason why my BW Report is have missing data?
4.) Why is my BW Report have incorrect data?
5.) Why doesnu2019t my BW Report Data match SAP R/3 Data?
Thanks,
Milind
Locked - duplicate post and very generic questions
Report performance and data quality
Edited by: Arun Varadarajan on Apr 9, 2010 2:07 AM

Hi,
1) Does BW Report show how current is my data?
Yes, Last refresh of your data stat in query Properties.Run report and check the details for last refresh.
2.) What are the reason why the performance of my BW Report is slow?
Reason could be:
Poor Design
Business Logic (Transformations)
Nav attributes used in the reports
Time dependent MD
Aggregates missing
Data Vol in the Cubes or DSO's
http://wiki.sdn.sap.com/wiki/display/BI/SomeusefulT-CodeforBIperformancetuning
3.) What are the reason why my BW Report is have missing data?
Check the source system data and check mapping in transformation with all the business logic.
4.) Why is my BW Report have incorrect data?
Depedns if you are loading from FF or R/3 or your are cleansing the data once it enters in to BW.
5.) Why doesnu2019t my BW Report Data match SAP R/3 Data?
Check the Source system data in RSA3 and pick one Document and run the same document in BI.
Thanks!
@AK

Drill Down Report Performance issue?

Hi,
why drill down report is slower performance comparing with Action link/Navigation method? what could be the back end processing?
Thanks
MRD

Need to know/see your config to tell why it is slow, I would suggest to follow best practices for the same.
Drill down back end process something like:
Report fetch next level columns and the all aggregated measures are grouped by next level this may take some time unless you go with aggregate table (is part of best practices)
Appreciate if you mark as correct/helpful

Report makes slow down

I have some problem of performance due to the report generation.
If I do not use "on the fly reporting", performance are ok, each item of my loop takes the same time. But I have nothing in the report.
If I use "on the fly reporting", performance are bad, ecah item of my loop take more and more time which becomes inacceptable. On the contrary, my report is ok.
Is possible to have a report without disturbing and slow down the execution of the sequence ?
Thanks a lot for your support.

Hey sfl,
The short answer is NO.
Basically on the fly reporting is being updated everytime a step that records results gets executed. So you have to store that in memory. How many steps do you have? If you have a bunch of steps and your report is really long then you will see performance drop dramatically.
So you have to choose one or the other unfortunately.
Regards,
jigg
CTA, CLA
teststandhelp.com
~Will work for kudos and/or BBQ~

Interactive report performance problem over database link - Oracle Gateway

Hello all;
This is regarding a thread Interactive report performance problem over database link that was posted by Samo.
The issue that I am facing is when I use Oracle function like (apex_item.check_box) the query slow down by 45 seconds.
query like this: (due to sensitivity issue, I can not disclose real table name)
SELECT apex_item.checkbox(1,b.col3)
, a.col1
, a.col2
FROM table_one a
, table_two b
WHERE a.col3 = 12345
AND a.col4 = 100
AND b.col5 = a.col5
table_one and table_two are remote tables (non-oracle) which are connected using Oracle Gateway.
Now if I run above queries without apex_item.checkbox function the query return or response is less than a second but if I have apex_item.checkbox then the query run more than 30 seconds. I have resolved the issues by creating a collection but it’s not a good practice.
I would like to get ideas from people how to resolve or speed-up the query?
Any idea how to use sub-factoring for the above scenario? Or others method (creating view or materialized view are not an option).
Thank you.
Shaun S.

Hi Shaun
Okay, I have a million questions (could you tell me if both tables are from the same remote source, it looks like they're possibly not?), but let's just try some things first.
By now you should understand the idea of what I termed 'sub-factoring' in a previous post. This is to do with using the WITH blah AS (SELECT... syntax. Now in most circumstances this 'materialises' the results of the inner select statement. This means that we 'get' the results then do something with them afterwards. It's a handy trick when dealing with remote sites as sometimes you want the remote database to do the work. The reason that I ask you to use the MATERIALIZE hint for testing is just to force this, in 99.99% of cases this can be removed later. Using the WITH statement is also handled differently to inline view like SELECT * FROM (SELECT... but the same result can be mimicked with a NO_MERGE hint.
Looking at your case I would be interested to see what the explain plan and results would be for something like the following two statements (sorry - you're going have to check them, it's late!)
WITH a AS
(SELECT /*+ MATERIALIZE */ *
FROM table_one),
b AS
(SELECT /*+ MATERIALIZE */ *
FROM table_two),
sourceqry AS
(SELECT b.col3 x
       , a.col1 y
       , a.col2 z
FROM table_one a
    , table_two b
WHERE a.col3 = 12345
AND   a.col4 = 100
AND   b.col5 = a.col5)
SELECT apex_item.checkbox(1,x), y , z
FROM sourceqry
WITH a AS
(SELECT /*+ MATERIALIZE */ *
FROM table_one),
b AS
(SELECT /*+ MATERIALIZE */ *
FROM table_two)
SELECT apex_item.checkbox(1,x), y , z
FROM table_one a
    , table_two b
WHERE a.col3 = 12345
AND   a.col4 = 100
AND   b.col5 = a.col5If the remote tables are at the same site, then you should have the same results. If they aren't you should get the same results but different to the original query.
We aren't being told the real cardinality of the inners select here so the explain plan is distorted (this is normal for queries on remote and especially non-oracle sites). This hinders tuning normally but I don't think this is your problem at all. How many distinct values do you normally get of the column aliased 'x' and how many rows are normally returned in total? Also how are you testing response times, in APEX, SQL Developer, Toad SQLplus etc?
Sorry for all the questions but it helps to answer the question, if I can.
Cheers
Ben
http://www.munkyben.wordpress.com
Don't forget to mark replies helpful or correct ;)

Apex report performance is very poor with apex_item.checkbox row selector.

Hi,
I'm working on a report that includes some functionality to be able to select multiple records for further processing.
The report is based on a view that contains a couple of hundred thousand records.
When i make a selection from this view in sqlplus , the performance is acceptable but the apex report based on the same view performes very poorly.
I've noticed that when i omit the apex_item.checkbox from my report query, performance is on par with sqlplus. (factor 10 or so quicker).
Explain plan appears to be the same with or without checkbox function in the select.
My query is:
select apex_item.checkbox(1,tan_id) Select ,
brt_id
, tan_id
, message_id
, conversation_id
, action
, to_acn_code
, information
, brt_created
, tan_created
from (SELECT brt.id brt_id, -- view query
MAX (TAN.id) tan_id,
brt.message_id,
brt.conversation_id,
brt.action,
TAN.to_acn_code,
TAN.information,
brt.created brt_created,
TAN.created tan_created
FROM (SELECT brt_id, id, to_acn_code, information, created
FROM xxcjib_transactions
WHERE tan_type = 'DELIVER' AND status = 'FINISHED') TAN,
xxcjib_berichten brt
WHERE brt.id = TAN.brt_id
GROUP BY brt.id,
brt.message_id,
brt.conversation_id,
brt.action,
TAN.to_acn_code,
TAN.information,
brt.created,
TAN.created)
What could be the reason for the poor performance of the apex report?
And is there another way to select multiple report records without the apex_item.checkbox function?
I'm using apex 3.2 on oracle 10g database.
Thanks,
Niels Ingen Housz
Edited by: user11986529 on 19-mrt-2010 4:06

Thanks for your reply.
Unfortunately changing the pagination doesnt make much of a difference in this case.
Without the checkbox the query takes 2 seconds.
With checkbox it takes well over 30 seconds.
The second report region on this page based on another view seems to perform reasonably well with or without the checkbox.
It has about the same number of records but with a different view query.
There are also a couple of filter items in the where clause of the report queries (same for both reports) based on date and acn_code and both reports have a selectlist item displayed in their regions based on a simple lov. These filter items don't seem to be of influence on the performance.
I have also recreated the report on a seperate page without any other page items or where clause and the same thing occurs.
With the checkbox its very very slow (more like 20 times slower).
Without it , the report performs well.
And another thing, when i run the page with debug on i don't see the actual report query:
0.08: show report
0.08: determine column headings
0.08: activate sort
0.08: parse query as: APEX_CMA_ONT
0.09: print column headings
0.09: rows loop: 30 row(s)
and then the region is displayed.
I am using databaselinks in the views b.t.w
Edited by: user11986529 on 19-mrt-2010 7:11

User complaining report very slow?

Hi Gurus,
There is an interview question in EBS 11I:
“We have lot of issues in here, We facing some problem, the Discoverer users always complaining getting report very slow, sometimes it gives time-out error. What you think, how to resolve the problem?”
What are the answers they are looking from us?
Usually they are not satisfied with couple of answers, if we answered/verified each answer, the interviewer reply “No, …No…No……….. ”.
So tell me the answer what they are looking for. Please provide full possible scenarios.
Thanks,

Here is my 2 cent comments:
1. network issue
you can compare the discoverer reports with Oracle reports or Application module to identify this, usually this is not the case
2. tune the backend query
you can run the discovery report backend sql query in TOAD, if the query is very slow, then the query has performance issue, you can modify the join condition to improve the performance
3. add Parameter to Discoverer report
sometimes it is very difficult to modify the backend sql query, you can add parameter to discoverer report, when end user run the report based on the parameter, data can be quickly displayed. for example, currently report will retrieve all invoices for the company, if you add a year parameter, 2010, the report only retrieve the invoice of 2010.
4. change timeout time
timeout issue is a discoverer report setup issue, you can change the timeout time for example from 30 minutes to 60 minutes.
Thanks

Strange problem... Query runs faster, but report runs slow...

Hi Gurus,
We are using Report 10g on 10g Application server and solaris. we created a report on a table which has 10,000 rows. The report has 25 columns. when we run this query in Toad it took 12 sec for fetching all these 10,000 rows
But when we run the report with Destype = 'FILE' and Desformat = 'DELIMITEDDDATA', it is taking 5 to 8 minutes
to open in excel ( we concatenated mimetype=vnd-msexcel at the end of the url if the Destype=FILE). We removed the layout in the report as it is taking 10 to 15 mins to run to Screen with Desformat=HTML/PDF(formating pages taking more time). We are wondering why DELIMITEDDATA format is taking long time as it runs only query.
Does RWSERVLET take more time of writing the data to the Physical file in the cache dir? Our cache size is 1 GB. we have 2 report servers clustered. Tracing is off.
Please advise me if there are any report server settings to boost the performance.
Thanks alot,
Ram.

Duplicate of Strange problem... Query runs faster, but report runs slow... in the Reports forum.
[Thread closed]

2014 SSRS Reports Performance issues

Hi All,
After upgrading SQL 2008 reports to SQL 2014 i observed there is performance lag in 2014 ssrs reports,
2008 reports which used to render in <2 secs now taking >50 secs,
After doing some checks on why this lag occurred, i found that this is because of the expressions in reports, If i remove all the expressions then report renders < 2 secs otherwise its taking >50 secs
My question here is, we used the same expressions in 2008 version also which displays the report in <2 secs but why same thing taking more time in 2014 version.
Is expressions handling in 2008 and 2014 different.
and below are the expressions used in the both the versions
IIF(ISNOTHING(Fields!Comp.Value),"-",Fields!Comp.Value)
IIF(ISNOTHING(Fields!Base.Value),"-",Fields!Base.Value)
IIF(ISNOTHING(Fields!Var.Value),"-",Fields!Var.Value)
iif(Fields!check.Value=true,"yellow","Transparent")
Thanks in advance
Chandra.

Hi Chandra,
According to your description, the same report render slower in SQL Server 2014 than in SQL Server 2008.
In both SSRS 2008 and SSRS 2014, the expression is processed in the same way. In Reporting Services, the total time to generate a report include TimeDataRetreval, TimeProcessing and TimeRendering. To analyze which section take much time, we can check the
table Executionlog3 in the ReportServer database. For more information, Please refer to this article:
More tips to improve performance of SSRS reports.
After check out which section costs most of time, then you can refer to this article to optimize your report:
Troubleshooting Reports: Report Performance.
If possible, please share some information about your report migration.
Best regards,
Qiuyun Yu
Qiuyun Yu
TechNet Community Support

Will BW indexing help Webi reports performance

Hi Experts,
Environment
BO Version:4.1 SP3
Reporting Database:BW 7.4 sp3
Recently we have applied the OSS note :. 0001898395 so that we enabled index on the master data.
We have applied the note and had the index on the 0profit_ctr in the Infoobject: 0mat_plant.
Reports are fast in BEX side but there is no difference in webi reports performance.
Our opinion is if BEx performance is increased obviously WEbi performance also should increase.
Please post your experiences..
Thank you,,

Several things will affect the report speed. Note that there are two halves to it - the data source fetch time and the report render time.
Data source fetch time is the time that it takes for all the data to be returned. BO will always look slower than the native tool because the native tool starts spooling out results as soon as it retrieves the first one - the more data returned, the slower BO will look by comparison.
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