Performance tuning of the XI System

Hi Everybody,
We are testing the Interfaces in QA System and I see the messages are getting stuck when we have load.
Is there any performance tuning which can be done to better the performance..
Can somebody suggest me the options?
Helpful answers will be rewarded points.
Thanks & Regards,
Rupash K

Hi,
Check this "SAP Note 857530 "
Integration process performance(in sap XI).
Refer Try performance tuning :
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/70ada5ef-0201-0010-1f8b-c935e444b0ad
http://help.sap.com/saphelp_nw04/helpdata/en/9e/6921e784677d4591053564a8b95e7d/frameset.htm
Regards
Seshagiri

Similar Messages

Performance tuning for the query

CURSOR c_exercise_list IS
       SELECT
              DECODE(v_mfd_mask_id ,'Y',' ',o.opt_id) opt_id,
              DECODE(v_mfd_mask_id ,'Y',' ',o.soc_sec) soc_sec,
              P.plan_id plan_id, E.exer_id exer_id, E.exer_num,
              DECODE(G.sar_flag, 0, DECODE(G.plan_type, 0, '1', 1, '2', 2, '3', 3, ' ', 4,'5', 5, '6', 6, '7', 7, '8', 8, '9', '0'), ' ') option_type,
              TO_CHAR(G.grant_dt, 'YYYYMMDD') grant_dt, TO_CHAR(E.exer_dt, 'YYYYMMDD') exer_dt,
              E.opts_exer opts_exer,
              E.mkt_prc   mkt_prc,
              E.swap_prc swap_prc,
              E.shrs_swap shrs_swap, decode(e.exer_type,2,decode(xe.cash_partial,'Y','A','2'),TO_CHAR(E.exer_type)) exer_type,
              E.sar_shrs sar_shrs,
              NVL(ROUND(((xe.sar_shrs_withld_optcost - (e.opts_exer * g.opt_prc) / e.mkt_prc) * e.mkt_prc),2),0)+e.sar_cash sar_cash,
              NVL(f.fixed_fee1,0) fixed_fee1,
              NVL(f.fixed_fee2,0) fixed_fee2,
              NVL(f.fixed_fee3,0) fixed_fee3,
              NVL(f.commission,0) commission,
              NVL(f.sec_fee,0)    sec_fee,
              NVL(f.fees_paid,0) fees_paid,
              NVL(ct.amount,0)     cash_tend,
              E.shrs_tend shrs_tend, G.grant_id grant_id, NVL(G.grant_cd, ' ') grant_cd,
              NVL(xg.child_symbol,' ') child_symbol,
              NVL(xg.opt_gain_deferred_flag,'N') defer_flag,
              o.opt_num opt_num,
              --XO.new_ssn,
              DECODE(v_mfd_mask_id ,'Y',' ',xo.new_ssn) new_ssn,
                      xo.use_new_ssn
              ,xo.tax_verification_eligible tax_verification_eligible
              ,(SELECT TO_CHAR(MIN(settle_dt),'YYYYMMDD') FROM tb_ml_exer_upload WHERE exer_num = E.exer_num AND user_id=E.user_id AND NVL(settle_dt,TO_DATE('19000101','YYYYMMDD'))>=E.exer_dt) AS settle_dt
              ,xe.rsu_type AS rsu_type
              ,xe.trfbl_det_name AS trfbl_det_name
              ,o.user_txt1,o.user_txt2,xo.user_txt3,xo.user_txt4,xo.user_txt5,xo.user_txt6,xo.user_txt7
              ,xo.user_txt8,xo.user_txt9,xo.user_txt10,xo.user_txt11,
              xo.user_txt12,
              xo.user_txt13,
              xo.user_txt14,
              xo.user_txt15,
              xo.user_txt16,
              xo.user_txt17,
              xo.user_txt18,
              xo.user_txt19,
              xo.user_txt20,
              xo.user_txt21,
              xo.user_txt22,
              xo.user_txt23,
              xo.user_dt2,
              xo.adj_dt_hire_vt_svc,
              xo.adj_dt_hire_vt_svc_or,
              xo.adj_dt_hire_vt_svc_or_dt,
              xo.severance_plan_code,
              xo.severance_begin_dt,
              xo.severance_end_dt,
              xo.retirement_bridging_dt
              ,NVL(xg.pu_var_price ,0) v_pu_var_price
              ,NVL(xe.ficamed_override,'N') v_ficmd_ovrride
              ,NVL(xe.vest_shrs,0) v_vest_shrs
              ,NVL(xe.client_exer_id,' ') v_client_exer_id
              ,(CASE WHEN xg.re_tax_flag = 'Y' THEN pk_xop_reg_outbound.Fn_GetRETaxesWithheld(g.grant_num, E.exer_num, g.plan_type)
                     ELSE 'N'
                 END) re_tax_indicator -- 1.5V
              ,xe.je_bypass_flag
              ,xe.sar_shrs_withld_taxes   --Added for SAR july 2010 release
              ,xe.sar_shrs_withld_optcost --Added for SAR july 2010 release
        FROM
        (SELECT exer.* FROM exercise exer WHERE NOT EXISTS (SELECT s.exer_num FROM suspense s
            WHERE s.exer_num = exer.exer_num AND s.user_id = exer.user_id AND exer.mkt_prc = 0))E,
            grantz G, xop_grantz xg, optionee o, xop_optionee xo, feeschgd f, cashtendered ct, planz P,xop_exercise xe
        WHERE
              E.grant_num = G.grant_num
        AND   E.user_id    = G.user_id
        AND   E.opt_num    = o.opt_num
        AND   E.user_id    = o.user_id
        AND   (G.grant_num = xg.grant_num(+) AND G.user_id=xg.user_id(+))
        AND   (o.opt_num   = xo.opt_num(+)   AND o.user_id=xo.user_id(+))
        AND   E.plan_num = P.plan_num
        AND   E.user_id = P.user_id
        AND   E.exer_num = f.exer_num(+)
        AND   E.user_id = ct.user_id(+)
        AND   E.exer_num = ct.exer_num(+)
        AND   E.user_id = ct.user_id(+)
        AND   E.exer_num=xe.exer_num(+)
        AND   E.user_id=xe.user_id(+)
        AND   G.user_id = USER
        AND NOT EXISTS (
                    SELECT tv.exer_num
                      FROM tb_xop_tax_verification tv--,exercise ex
                     WHERE tv.exer_num = e.exer_num
                       AND tv.user_id = e.user_id
                       AND tv.user_id = v_cms_user
                       AND tv.status_flag IN (0,1,3,4, 5)) -- Not Processed
        ;how to tune the query to impropve the performance, any1 help me ..thanks in advance
Edited by: BluShadow on 21-Feb-2013 08:14
corrected {noformat}{noformat} tags. Please read {message:id=9360002} and learn how to post code correctly.

i got CPU cost: 458.50 Elapsed time: 1542.90 so anything can tune to improve the performance, but there is no full table scan applied for none of the mentioned table. . and most of the columns are unique index scan takes place.. anybody can help me to find the solution
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bi
PL/SQL Release 10.2.0.4.0 - Production
CORE     10.2.0.4.0     Production
TNS for Solaris: Version 10.2.0.4.0 - Production
NLSRTL Version 10.2.0.4.0 - Production
Edited by: 956684 on Feb 22, 2013 4:09 AM

In sap bi performance tuning option is considered in cube not in ods, why?

details about
indexes,partitions,aggregates,compression,roll up
how these are helping to increase system performance
why ods is not suitable?

Hi,
Generally we do performance tuning on the cubes as most of the reportings are done on the cubes hpowever in case of DSO also we can increase the performance by creating indexes of deactivating SID generation flag if there is no reporting on the DSO.
Following 2 links will show you different aspects of performance tuning :-
http://www.sdn.sap.com/irj/scn/index?rid=/library/uuid/404544e7-83c9-2e10-7b80-a24d5099ce3f
For LID and High Cardinality
http://www.sdn.sap.com/irj/scn/index?rid=/library/uuid/005f3197-d3da-2e10-1a94-a5c62342f2aa
You may create aggregates on the cube if some of IO are being used in the query very frequently to enhance the performce of query execution.
Navesh

New Book on SAP BW Performance Tuning

Hi All,
Just thought of sharing this info on SDN...
A new book on SAP BW Performance Tuning is available...
http://www.erpguides.com/books/bwperformance.htm
Shreekant W Shiralkar & Bharat Patel have authored a book on SAP BW Performance Tuning. The book is based on their real life experiences on improving the system performance using various features/techniques/ideas.
I am aware that the The book covers many how-to procedures with screen shots for helping the reader to implement the performance improvement and benefit immediately. It would be interesting to read this book as a compilation of practical experiences on performance tuning .
Cheers,
Amol

Hi,
Read Data warehousing books written by Ralph Kimball or Bill Inmon in order to familiarize yourself with the basic concepts of data warehousing. This is the foundation of the entire thing.
Follow the SAP training materials on BW Data Warehousing, BW Reporting and BW Modeling. There are several books that can help you a lot when getting started. check this link
[http://www.amazon.com/SAP-BW-Book-List/lm/RRWM7R55RBEXQ/ref=cm_lmt_srch_f_2_rsrsrs2/103-7157721-8001426]
After you have a solid BW knowledge, start to review the help.sap.com site.
Hope this helps,
Regards,
Haritha.

Performance Tuning in JDev11.1.14

Hi Experts,
Any docs to describe how to improve the performance tuning of the ADF (across the layer) application.
JDev 11.1.1.4g
thnks

http://download.oracle.com/docs/cd/E16764_01/core.1111/e10108/toc.htm

Performance tuning in Query

Dear All,
My client wants to do the performance tuning in a query where it has the Global structure of 300 CKF & 300 RKF.
They dont want to touch the MP, all they want to do some performance tuning through the front end without touching the Multiprovider.
The CKF is little bit tricky where in Each CKF has 28 RKF and In each RKF atleast 2 variables are used an with hierarchy restrictions. The query is taking 30 - 40 min to execute. Kindly guide me how to handle this.
Regards,
Suman Thangadurai.

HI,
Improving query performance u2013
-     Generate index.
-     Build query on multiprovider and better use Constant Selection Function to bring infoset functionality to Multiprovider.
-     Make your query more dynamic using variables.
-     Do partitioning on IC when you have restriction on 0CALMONTH.
-     Use more free charecterstics.
-     Use include than exclude at Bex level.
-     Utilize Cache mode and Read mode functions.
Regards,
rvc

Capacity planning (performance tuning of WLP 8.1 SP6 application)

Hi Guys,
I have one question regarding the performance tuning of the weblogic portal application (or may be any J2EE application for that matter) :
I understand that there could be lot of performance bottleneck areas e.g
(a) network issues (not enough bandwidth),
(b) bottleneck because of the DBs,
(c) application design/coding
(d) JVM might not have been tuned as per the business requirement of the application
(e) lack of clustering
(f) hardware problems (CPUs, RAMs etc)
Inorder to do the capacity planning for such an enterprise applications, what would be the best starting point?
Is it a good idea to start and profile the application using some profiling tools like OptimizeIt or JProbe? and then analyze the profiling the data and conclusion can be drawn interms of what and where the major bottleneck is into the application and accordingly it can be worked upon.
Or if there is any better and elegant way doing capacity planning?
Thanks for your time.
Regards
Jameel

Hi
id say start with a load tool that simulates average/ peak behavior with varied inputs and exercise your site . then profile if necessary.
Also start with the critical/most used portions of your site.
Its difficult doing the above because unles your migrating noone really knows the expected usage of your site. And its hard for someone to specify acceptable response times.
regards
deepak

R12 Performance Tuning...

Are there any docs or notes that one can to follow for EBS R12 performance tuning ?
Regards,
Rupdipt

Hi,
Please refer to the following links:
Performance Tuning the Apps Database Layer
http://blogs.oracle.com/schan/newsItems/departments/release12/2007/05/17#a1562
Understanding JDBC Connections From the eBusiness Middle Tier
http://blogs.oracle.com/schan/newsItems/departments/release12/2007/09/20#a2051
Performance Tuning for the E-Business Suite
http://blogs.oracle.com/schan/newsItems/departments/release12/2007/12/11#a2297
The following notes/links provide guidelines for setting up JVMs (Jserv groups/OC4J instances) for online applications in Apps 11i and R12:
Note: 362851.1 - Guidelines to setup the JVM in Apps Ebusiness Suite 11i and R12
https://metalink.oracle.com/metalink/plsql/ml2_documents.showDocument?p_database_id=NOT&p_id=362851.1
Note: :462550.1 - Generate JVM heap dump in E-Business suite 11i and R12
https://metalink.oracle.com/metalink/plsql/ml2_documents.showDocument?p_database_id=NOT&p_id=462550.1
Latest JVM Tuning Recommendations for Apps 11i
http://blogs.oracle.com/schan/2007/03/01
Tuning JVMs with Apps 11i
http://blogs.oracle.com/schan/2007/02/16#a1230
Configuring Middle-Tier JVMs for Applications 11i
http://blogs.oracle.com/schan/2006/08/01#a494
For tuning other application components (i.e. CM, initialization parameters, top SQL statements, application tier, ..etc), the following note should be helpful:
Note: 169935.1 - Troubleshooting Oracle Applications Performance Issues
https://metalink.oracle.com/metalink/plsql/ml2_documents.showDocument?p_database_id=NOT&p_id=169935.1
Note: 244040.1 - Oracle E-Business Suite Recommended Performance Patches
https://metalink.oracle.com/metalink/plsql/ml2_documents.showDocument?p_database_id=NOT&p_id=244040.1
Note: 744143.1 - Tuning performance on eBusiness suite
https://metalink.oracle.com/metalink/plsql/ml2_documents.showDocument?p_database_id=NOT&p_id=744143.1
Regards,
Hussein

Good book for Oracle 9i Performance Tuning

Hi Can anybody suggest good book in Oracle 9i performance Tuning (All the Tuning methods and I/O, tuning Memeory Tuning .......)
I done my OCP 9i and I worked as Junior DBA and now I want to concentrate only on Tuning.
Thanks
Venkataragavan.S

If you are looking generalized, not exactly 9i performance, but,good in terms of oracle tuning, I would suggest the below apart from the above given,
Oracle Performance by Cary Milsap and Jef Holt
Jonathan Lewis, 'Practical Oralce 8i', dont go on 8i name.
Sql Tuning by Dan Tow
Jaffar

Performance tuning of this code.

Hello Friends,
Following is the piece of Code.. can some one please help me to optimise the code.
I want to do performance tuning on the same.
Any inputs on this would be valuable to me .
Thanking you all in anticipation.
<< Unformatted code removed >>
Edited by: Jitesh Pamnani on Apr 7, 2009 10:09 AM
Edited by: Jitesh Pamnani on Apr 7, 2009 10:09 AM
Edited by: Rob Burbank on Apr 7, 2009 11:05 AM

please read,
SQL trace:
/people/siegfried.boes/blog/2007/09/05/the-sql-trace-st05-150-quick-and-easy
for the first part, without SQL Trace it does not make much sense, to check your select statements.
I guess that one or several are slow. But there are too many.
Second part, use sorted tables or binary search!!!!!
Your coding is highly nonlinear, not only quadratic but even cubic!!!!
Read here for table types and runtimes
Measurements on internal tables: Reads and Loops:
/people/siegfried.boes/blog/2007/09/12/runtimes-of-reads-and-loops-on-internal-tables
Read here about nonlinearity:
Nonlinearity: The problem and background
/people/siegfried.boes/blog/2007/02/12/performance-problems-caused-by-nonlinear-coding
Read here for measuring:
SE30
/people/siegfried.boes/blog/2007/11/13/the-abap-runtime-trace-se30--quick-and-easy
Z_SE30_COMPARE
/people/siegfried.boes/blog/2008/01/15/a-tool-to-compare-runtime-measurements-zse30compare
Nonlinearity Check
/people/siegfried.boes/blog/2008/01/24/nonlinearity-check-using-the-zse30compare
If you do ot all I assume that your coding can becomes faster by factors 10 ... 100 or even more.
Siegfried

Performance Tuning Of VA01

Hi,
Please can anybody help me in the performance tuning of the VA01 transaction since its consuming a lot of time in production.
This issue is very urgent.
Pls help.

Always check the driver internal tables is not empty, while using FOR ALL ENTRIES
Avoid for all entries in JOINS
Try to avoid joins and use FOR ALL ENTRIES.
Try to restrict the joins to 1 level only ie only for tables
Avoid using Select *.
Avoid having multiple Selects from the same table in the same object.
Try to minimize the number of variables to save memory.
The sequence of fields in 'where clause' must be as per primary/secondary index ( if any)
Avoid creation of index as far as possible
Avoid operators like <>, > , < & like % in where clause conditions
Avoid select/select single statements in loops.
Try to use 'binary search' in READ internal table. Ensure table is sorted before using BINARY SEARCH.
Avoid using aggregate functions (SUM, MAX etc) in selects ( GROUP BY , HAVING,)
Avoid using ORDER BY in selects
Avoid Nested Selects
Avoid Nested Loops of Internal Tables
Try to use FIELD SYMBOLS.
Try to avoid into Corresponding Fields of
Avoid using Select Distinct, Use DELETE ADJACENT
you can refer these links :
http://www.sapgenie.com/abap/performance.htm
chk this
How to increase the performance of a program
Check the following Links
Re: performance tuning
Re: Performance tuning of program
http://www.sapgenie.com/abap/performance.htm
http://www.thespot4sap.com/Articles/SAPABAPPerformanceTuning_PerformanceAnalysisTools.asp
check the below link
http://www.sap-img.com/abap/performance-tuning-for-data-selection-statement.htm
See the following link if it's any help:
http://www.thespot4sap.com/Articles/SAPABAPPerformanceTuning_PerformanceAnalysisTools.asp
Check also http://service.sap.com/performance
and
books like
http://www.sap-press.com/product.cfm?account=&product=H951
http://www.sap-press.com/product.cfm?account=&product=H973
http://www.sap-img.com/abap/more-than-100-abap-interview-faqs.htm
cheers!
sri

The sender system

All,
I have read several documents about TDMS and want to utilize it. But now I really have questions about the sender system(client), the question is: As we all know, if we take the productive system as the sender system, it really requires downtime when data transfer, it indeed impacts seriously. Could anybody tell me the downtime counting policy or any other good idea to avoid this? Thanks.
Sure I know the snapshot and the whole productive system copy as the sender system.
Regards,
Eric

Hi,
To avoid any performance hits on the production system and any data inconsistencies, we created a new R/3 system as the sender system. Each time we want to run a TDMS package we refresh this copy by a system copy (i.e. restore the back up tape taken from the live system).
I would not recommend using the production system as the sources at all and I think this SAP's recommendation too.
Masoud

Planning to start the performance tuning but....

Friends,
Database OS: RHEL AS 3.0
Database: Oracle Release 9.2.0.4.0
Number of Tables: 503
TableSpace size - 1.8GB out of 3GB
Max.Records in a Table - 1 Million and its increasing..
Our DB Optimizer mode is - CHOOSE (is it RBO?)
We are not using enterprise manager and not installed any tuning scripts like statspack etc....
Currently we are taking user managed backup without any problem so we are continuing the same from 2004 onwards.
Now we want want to tune our database.(We have never tuned our database)
We would like to change our optimizer from RBO to CBO.
Can anybody tell me the first step for the performance tuning?
Please dont suggest me oracle doc im already studying.....its taking time....
In the mean time......
Step 1: Can i Analyze the table or dbms_stat package?
We have not at all used the analyze or dbms_stat. So can i start with any of the above or do u have any other suggestions for the 1st step?
Thanks

our manager feels that if we tune our db the performance will be more than compared to the current one.you have a mystique manager then, ask him what kind of "feelings" does he have about my database ;) there is no place for feelings in this game, this is life cycle to be successful ; testing->reporting->analyzing->take nedded actions->re-testing->reporting->analyzing..
so while you are surely reading the documentation;
Oracle9i Database Performance Planning Release 2 (9.2)
http://download.oracle.com/docs/cd/B10501_01/server.920/a96532/toc.htm
Oracle9i Database Performance Tuning Guide and Reference Release 2 (9.2)
http://download.oracle.com/docs/cd/B10501_01/server.920/a96533/toc.htm
first thing you have to do is to setup an appropriate test environment with same os-oracle releases, parameters;
-- some of them to check
SELECT NAME, VALUE
FROM v$system_parameter a
WHERE a.NAME IN
       ('compatible', 'optimizer_features_enable',
        'optimizer_mode', 'pga_aggregate_target', 'workarea_size_policy',
        'db_file_multiblock_read_count', .. )and of course schema set and data amount. Then you run your application on load and take statspack snapshots and do the same after collecting statistics;
-- customize for your configuration, schema level object statistics
exec dbms_stats.gather_schema_stats( ownname =>'YOUR_SCHEMA', degree=>16, options=>'GATHER AUTO', estimate_percent=>dbms_stats.auto_sample_size, cascade=>TRUE, method_opt=>'FOR ALL COLUMNS SIZE AUTO', granularity=>'ALL');
-- check your system stats, with sys account
SELECT pname, pval1 FROM sys.aux_stats$ WHERE sname = 'SYSSTATS_MAIN';after you have the base report and the report after change compare the top 5 waits, the top queries which have dramatic logical I/O changes etc. At this point you go into session based tuning in order to understand why a specific query performs worser with CBO compared to RBO. You need to be able to create and read execution plans and i/o statistics at least. Here are some quick introductions;
http://www.bhatipoglu.com/entry/17/oracle-performance-analysis-tracing-and-performance-evaluation
http://psoug.org/reference/explain_plan.html
http://coskan.wordpress.com/2007/03/04/viewing-explain-plan/
and last words again goes to your manager; how does he "feel" about a 10gR2 migration? With Grid Control, AWR, ADDM and ASH performance tuning evolved a lot. Important note here, after 10g RBO is dead(unsupported).
Best Regards,
H.Tonguç YILMAZ
http://tonguc.yilmaz.googlepages.com/
Message was edited by:
TongucY

Can anyone plz tell me the steps for performance tuning.

hello friends
what is performance tuning?
can anyone plz tell me the steps for performance tuning.

Hi Kishore, this will help u.
Following are the different tools provided by SAP for performance analysis of an ABAP object
Run time analysis transaction SE30
This transaction gives all the analysis of an ABAP program with respect to the database and the non-database processing.
SQL Trace transaction ST05
The trace list has many lines that are not related to the SELECT statement in the ABAP program. This is because the execution of any ABAP program requires additional administrative SQL calls. To restrict the list output, use the filter introducing the trace list.
The trace list contains different SQL statements simultaneously related to the one SELECT statement in the ABAP program. This is because the R/3 Database Interface - a sophisticated component of the R/3 Application Server - maps every Open SQL statement to one or a series of physical database calls and brings it to execution. This mapping, crucial to R/3s performance, depends on the particular call and database system. For example, the SELECT-ENDSELECT loop on the SPFLI table in our test program is mapped to a sequence PREPARE-OPEN-FETCH of physical calls in an Oracle environment.
The WHERE clause in the trace list's SQL statement is different from the WHERE clause in the ABAP statement. This is because in an R/3 system, a client is a self-contained unit with separate master records and its own set of table data (in commercial, organizational, and technical terms). With ABAP, every Open SQL statement automatically executes within the correct client environment. For this reason, a condition with the actual client code is added to every WHERE clause if a client field is a component of the searched table.
To see a statement's execution plan, just position the cursor on the PREPARE statement and choose Explain SQL. A detailed explanation of the execution plan depends on the database system in use.
Need for performance tuning
In this world of SAP programming, ABAP is the universal language. In most of the projects, the focus is on getting a team of ABAP programmers as soon as possible, handing over the technical specifications to them and asking them to churn out the ABAP programs within the given deadlines.
Often due to this pressure of schedules and deliveries, the main focus of making a efficient program takes a back seat. An efficient ABAP program is one which delivers the required output to the user in a finite time as per the complexity of the program, rather than hearing the comment I put the program to run, have my lunch and come back to check the results.
Leaving aside the hyperbole, a performance optimized ABAP program saves the time of the end user, thus increasing the productivity of the user, and in turn keeping the user and the management happy.
This tutorial focuses on presenting various performance tuning tips and tricks to make the ABAP programs efficient in doing their work. This tutorial also assumes that the reader is well versed in all the concepts and syntax of ABAP programming.
Use of selection criteria
Instead of selecting all the data and doing the processing during the selection, it is advisable to restrict the data to the selection criteria itself, rather than filtering it out using the ABAP code.
Not recommended
Select * from zflight.
Check : zflight-airln = LF and zflight-fligh = BW222.
Endselect.
Recommended
Select * from zflight where airln = LF and fligh = 222.
Endselect.
One more point to be noted here is of the select *. Often this is a lazy coding practice. When a programmer gives select * even if one or two fields are to be selected, this can significantly slow the program and put unnecessary load on the entire system. When the application server sends this request to the database server, and the database server has to pass on the entire structure for each row back to the application server. This consumes both CPU and networking resources, especially for large structures.
Thus it is advisable to select only those fields that are needed, so that the database server passes only a small amount of data back.
Also it is advisable to avoid selecting the data fields into local variables as this also puts unnecessary load on the server. Instead attempt must be made to select the fields into an internal table.
Use of aggregate functions
Use the already provided aggregate functions, instead of finding out the minimum/maximum values using ABAP code.
Not recommended
Maxnu = 0.
Select * from zflight where airln = LF and cntry = IN.
Check zflight-fligh > maxnu.
Maxnu = zflight-fligh.
Endselect.
Recommended
Select max( fligh ) from zflight into maxnu where airln = LF and cntry = IN.
The other aggregate functions that can be used are min (to find the minimum value), avg (to find the average of a Data interval), sum (to add up a data interval) and count (counting the lines in a data selection).
Use of Views instead of base tables
Many times ABAP programmers deal with base tables and nested selects. Instead it is always advisable to see whether there is any view provided by SAP on those base tables, so that the data can be filtered out directly, rather than specially coding for it.
Not recommended
Select * from zcntry where cntry like IN%.
Select single * from zflight where cntry = zcntry-cntry and airln = LF.
Endselect.
Recommended
Select * from zcnfl where cntry like IN% and airln = LF.
Endselect.
Check this links
http://www.sapdevelopment.co.uk/perform/performhome.htm
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/afbad390-0201-0010-daa4-9ef0168d41b6
kindly reward if found helpful.
cheers,
Hema.

For one Urgent Change during performing the Approval(chnging the status to 'To be Tested') system does not recognize any changes using the CTS WBS BOM in the development system. The transaction is therefore incorrect or the status was reset by the system.

For one Urgent Change while performing the one of the Approval before changing the status to 'To Be Tested'
We are getting below error.
The system does not recognize any changes using the CTS WBS BOM in the development system. The transaction is therefore incorrect or the status was reset by the system.
COuld anyone please help us to know, How it can be resolved?
We also have this below error.
System Response
If the PPF action is a condition check, the condition is initially considered as not met, and leads to another warning, an error message, or status reset, depending on the configuration.
If the PPF action is the execution of a task in the task list, and the exception is critical, there is another error message in the document.
Procedure
The condition cannot be met until the cause is removed. Analyze all messages in the transaction application log.
Procedure for System Administration
Analyze any other messages in the task list application log, and the entries for the object /TMWFLOW/CMSCV
Additional Information:
System cancel RFC destination SM_UK4CLNT005_TRUSTED, Call TR_READ_COMM:
No authorization to log on as a trusted system (Tr usted RC=0).
/TMWFLOW/TU_GET_REQUEST_REMOTE:E:/TMWFLOW/TRACK_N:107
For above error Table /TMWFLOW/REP_DATA_FLOWwas refreshed as well but still the same error.

If you are in Test System, you can use function module AA_AFABER_DELETE to totally delete the depreciation area (tcode SE37, specify chart of depreciation and depreciation area), After that recreate your depreciation area and run AFBN. But before you do that, have you created a retirement transaction type that limits the posting on your new depreciation area? If not create one.
Hope this helps.
Thanks!
Jhero

Performance tuning of the XI System

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