XMLA reporting performance

Hi,
I'm SAP BI newbie... have you got experience on XMLA reporting ? we have some fast qry on our BI that runs fast in BEx ... but when we call from XMLA are slowly... I don't know where slowly... but in SM21 I can see many message such as:
HTTP/RFC session has been deleted following timeout
Do you know if exist some document to tune XMLA reporting ? ... mybe it's a connection/comunication problem.... but SAP BI back-end and front-end (an MSSQL reporting service) are on the same 1GB switch.
Istance profile:
DIR_ORAHOME                                 C:\oracle\SID\102
rdisp/max_arq                               2000
rdisp/wp_auto_restart                       86400
gw/netstat_once                             0
zcsa/second_language                        E
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login/password_expiration_time              90
login/min_password_lng                      8
rsdb/esm/buffersize_kb                      40000
enque/table_size                            10000
rdisp/tm_max_no                             2000
dbs/ora/array_buf_size                      1000000
sap/bufdir_entries                          10000
icm/keep_alive_timeout                      3600
gw/max_sys                                  2000
rsdb/obj/max_objects                        20000
rdisp/max_comm_entries                      2000
gw/max_overflow_size                        25000000
gw/max_conn                                 2000
gw/cpic_timeout                             120
rtbb/max_tables                             2000
rsdb/esm/max_objects                        10000
rsdb/obj/buffersize                         40000
zcsa/db_max_buftab                          5000
icm/host_name_full                          host.domain.com
SAPSYSTEMNAME                               SID
SAPGLOBALHOST                               host
SAPSYSTEM                                   10
INSTANCE_NAME                               DVEBMGS10
DIR_CT_RUN                                  $(DIR_EXE_ROOT)\$(OS_UNICODE)\NTI386
DIR_EXECUTABLE                              $(DIR_INSTANCE)\exe
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jstartup/instance_properties                $(jstartup/j2ee_properties);$(jstartup/sdm_properties)
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DIR_CLIENT_ORAHOME                          $(DIR_EXECUTABLE)
DIR_TRANS
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rdisp/wp_no_enq                             2
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rsdb/ntab/ftabsize                          30010
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rsdb/ntab/sntabsize                         3000
DIR_ROLL                                    C:\usr\sap\SID\DVEBMGS10\data
DIR_PAGING                                  C:\usr\sap\SID\DVEBMGS10\data
DIR_DATA                                    C:\usr\sap\SID\DVEBMGS10\data
DIR_REORG                                   C:\usr\sap\SID\DVEBMGS10\data
DIR_TEMP                                    C:\tmp
DIR_SORTTMP                                 C:\usr\sap\SID\DVEBMGS10\data
zcsa/system_language                        E
zcsa/installed_languages                    NEFDI
install/codepage/appl_server                1100
abap/use_paging                             0
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ztta/roll_area                              2000896
rdisp/ROLL_SHM                              7552
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abap/heap_area_nondia                       2000683008
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abap/heaplimit                              40894464
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rdisp/max_wprun_time                        3600
rdisp/plugin_auto_logout                    3600
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em/address_space_MB                         512
Regards.
Ganimede Dignan.

Hi,
http://img216.imageshack.us/img216/9350/98588629zn7.jpg
http://img216.imageshack.us/img216/5497/91958211bj1.jpg
http://img216.imageshack.us/img216/7618/15615500jk3.jpg
Have you got any advice ?
Regards.

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> My question is which one of the reasons i mentioned above are a major factor in delaying the report
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Read more here:
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All all!
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Hi All,
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Hi Björn,
thanks for your hints.
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I would like to know is the complex authorizations can also cause the Bex report performance.
One of my scenerio is like there are two users A & B
A is having relevant authorizations for reporting, Drill down etc which are required.
B is having SAP All authorization.
When the same report has been executed by both users on the same system.
the data retrieved by user B(SAP_ALL authorization) is quite faster than User A.
Its like ther diffference of about 10 minutes.
There are some exsclude selections in report.
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Vivek Tripathi
+91-9372313000

Hi Vivek
     Can you help us understand what was the exact problem and how you resolved it / solution at Extraction / Modeling / Reporting end.
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u2022     The same report executed with exact parameter has inconsistent performance results meaning one time it takes 1 minutes next time same report same user and same authorization takes 5 minutes.
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_Additional Information : _
We Create Secondary -Bitmap index every week end i do not see that is one of the route cause.
Except that we have our regular daily loads that are running for master data loads and transaction data loads in series.
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Hi,
Can someone help give explanations to following questions :
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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?
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Locked - duplicate post and very generic questions
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Hi,
1) Does BW Report show how current is my data?
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Reason could be:
Poor Design
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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.
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Depedns if you are loading from FF or R/3 or your are cleansing the data once it enters in to BW.
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Check the Source system data in RSA3 and pick one Document and run the same document in BI.
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Hello,
We have a report developed in FRS in the below style.
http://postimg.org/image/bn9dt630h/b9c2053d/
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Connection - Essbase
Suppress rows on Database connection server
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Hello,
>> The report works fine when run in local currency (Local currency is a stored member). When the report runs in a different currency (dynamic member) then it keeps on running for ages.
You are focusing on the report. The most likely reason is in the performance of the database. Ofcourse, you can reduce the query size and get your report performing again, but the root cause is likely the database design.
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Hi Friends,
I created a report with 45 ref.cursors,
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The report is report server.
IF i start to run the report through application
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is this report performance problem ?
if i have more ref.cursors in report
is there any problem in report performance ?
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One performance consideration I'd do is try to avoid multiple similar queries or even repeats of the same query.
Is
from invoice
where trunc(invoice_date) between :date1 and :date2
and currency_code = '$' -- sometimes 'euro' and so no
and ISSUE_PLACE = 'xx'
and investor_code = :investor_code;
return(v_comm*5.5137);
in main query? Can those Formulas be included/replaced into the main query? Are appropriate Indexes created for the joins?

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.
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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 ;)

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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