Increasing the performance of the abap program

Hi ,
Anybody had any document regarding how to increase the performance of ABAP program.
Regards,
baiju

hi,
Refer This link.

Performance tuning for Data Selection Statement
http://www.sap-img.com/abap/performance-tuning-for-data-selection-statement.htm

1. Debugger
http://help.sap.com/saphelp_47x200/helpdata/en/c6/617ca9e68c11d2b2ab080009b43351/content.htm
http://www.cba.nau.edu/haney-j/CIS497/Assignments/Debugging.doc
http://help.sap.com/saphelp_erp2005/helpdata/en/b3/d322540c3beb4ba53795784eebb680/frameset.htm
2. Run Time Analyser
http://help.sap.com/saphelp_47x200/helpdata/en/c6/617cafe68c11d2b2ab080009b43351/content.htm
3. SQL trace
http://help.sap.com/saphelp_47x200/helpdata/en/d1/801f7c454211d189710000e8322d00/content.htm
4. CATT - Computer Aided Testing Too
http://help.sap.com/saphelp_47x200/helpdata/en/b3/410b37233f7c6fe10000009b38f936/frameset.htm

5. Test Workbench
http://help.sap.com/saphelp_47x200/helpdata/en/a8/157235d0fa8742e10000009b38f889/frameset.htm

6. Coverage Analyser
http://help.sap.com/saphelp_47x200/helpdata/en/c7/af9a79061a11d4b3d4080009b43351/content.htm

7. Runtime Monitor
http://help.sap.com/saphelp_47x200/helpdata/en/b5/fa121cc15911d5993d00508b6b8b11/content.htm

8. Memory Inspector
http://help.sap.com/saphelp_47x200/helpdata/en/a2/e5fc84cc87964cb2c29f584152d74e/content.htm
9. ECATT - Extended Computer Aided testing tool.
http://help.sap.com/saphelp_47x200/helpdata/en/20/e81c3b84e65e7be10000000a11402f/frameset.htm

Similar Messages

How to improve the performance of the abap program

hi all,
I have created an abap program. And it taking long time since the number of records are more. And can anyone let me know how to improve the performance of my abap program.
Using se30 and st05 transaction.
can anyone help me out step by step
regds
haritha

Hi Haritha,
->Run Any program using SE30 (performance analysis)
Note: Click on the Tips & Tricks button from SE30 to get performance improving tips.
Using this you can improve the performance by analyzing your code part by part.
->To turn runtim analysis on within ABAP code insert the following code
SET RUN TIME ANALYZER ON.
->To turn runtim analysis off within ABAP code insert the following code
SET RUN TIME ANALYZER OFF.
->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
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
http://www.thespot4sap.com/Articles/SAPABAPPerformanceTuning_PerformanceAnalysisTools.asp
Performance tuning for Data Selection Statement
http://www.sap-img.com/abap/performance-tuning-for-data-selection-statement.htm
Debugger
http://help.sap.com/saphelp_47x200/helpdata/en/c6/617ca9e68c11d2b2ab080009b43351/content.htm
http://www.cba.nau.edu/haney-j/CIS497/Assignments/Debugging.doc
http://help.sap.com/saphelp_erp2005/helpdata/en/b3/d322540c3beb4ba53795784eebb680/frameset.htm
Run Time Analyser
http://help.sap.com/saphelp_47x200/helpdata/en/c6/617cafe68c11d2b2ab080009b43351/content.htm
SQL trace
http://help.sap.com/saphelp_47x200/helpdata/en/d1/801f7c454211d189710000e8322d00/content.htm
CATT - Computer Aided Testing Too
http://help.sap.com/saphelp_47x200/helpdata/en/b3/410b37233f7c6fe10000009b38f936/frameset.htm
Test Workbench
http://help.sap.com/saphelp_47x200/helpdata/en/a8/157235d0fa8742e10000009b38f889/frameset.htm
Coverage Analyser
http://help.sap.com/saphelp_47x200/helpdata/en/c7/af9a79061a11d4b3d4080009b43351/content.htm
Runtime Monitor
http://help.sap.com/saphelp_47x200/helpdata/en/b5/fa121cc15911d5993d00508b6b8b11/content.htm
Memory Inspector
http://help.sap.com/saphelp_47x200/helpdata/en/a2/e5fc84cc87964cb2c29f584152d74e/content.htm
ECATT - Extended Computer Aided testing tool.
http://help.sap.com/saphelp_47x200/helpdata/en/20/e81c3b84e65e7be10000000a11402f/frameset.htm
Just refer to these links...
performance
Performance
Performance Guide
performance issues...
Performance Tuning
Performance issues
performance tuning
performance tuning
You can go to the transaction SE30 to have the runtime analysis of your program.Also try the transaction SCI , which is SAP Code Inspector.
edited by,
Naveenan

What are the major situations to go to the short dump in abap programming?

What are the major situations to go to the short dump in abap programming?

Hi,
The major situations that an ABAP Program can result a dumb are as follows...
1) Poor coding i.e., if the data in the data base is less, then even a poor code can give you the result. But when you transport the program into Production, then there the same program will give you a dump, resulting 'TIMED OUT' error. So performance tunning is required for each and every program.
2) while calling a function module.
3) extracting of data into fields which are not type casted.
4) in case of x/y value, one should check the value of 'y' should not be zero, else a dump will result.
these are few which i can give for time being........

Regarding the performance of the Transaction F.01 Program RFBILA00

Hi Everyone,
We are running the transaction F.01for financial statements. The program is RFBILA00. We are facing the performance issue with this program. The version is ECC 6.0
Is there any solution to reduce the running time of this program. We are not using the business area.
Thanks,
Senthil

1.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.
2.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.
Or can use load balancing servers for user over load.

Please help me to increase the performance of the query

Hello
I am not an oracle expert or developer and i have a problem to resolve.
Below is the query and explaiation plan and seeking the help to improve the performance of the query.
Our Analysis,
The query runs good,takes less one minute and fetches the results but during peak time it takes 8 minutes
Require anyone suggestion's to improve the query.
The query is generated from the Microsft dll so we dont have SQL code and require some help on tuning the tables.
If tuning the query improves then also fine please suggest for that also.
Enviroment: Solaris 8
DB : oracle 9i
(SELECT vw.dispapptobjid, vw.custsiteobjid, vw.emplastname, vw.empfirstname,
vw.scheduledonsite AS starttime, vw.appttype, vw.latestart,
vw.endtime, vw.typetitle, vw.empobjid, vw.latitude, vw.longitude,
vw.workduration AS DURATION, vw.dispatchtype, vw.availability
FROM ora_appt_disp_view vw
WHERE ( ( vw.starttime >=
TO_DATE ('2/12/2007 4:59 PM', 'MM/DD/YYYY HH12:MI AM')
AND vw.starttime <
TO_DATE ('2/21/2007 3:59 PM', 'MM/DD/YYYY HH12:MI AM')
OR vw.endtime >
TO_DATE ('2/12/2007 4:59 PM', 'MM/DD/YYYY HH12:MI AM')
AND vw.endtime <=
TO_DATE ('2/21/2007 3:59 PM', 'MM/DD/YYYY HH12:MI AM')
OR ( vw.starttime <=
TO_DATE ('2/12/2007 4:59 PM', 'MM/DD/YYYY HH12:MI AM')
AND vw.endtime >=
TO_DATE ('2/21/2007 3:59 PM', 'MM/DD/YYYY HH12:MI AM')
UNION
(SELECT 0 AS dispapptobjid, emp.emp_physical_site2site AS custsiteobjid,
emp.last_name AS emplastname, emp.first_name AS empfirstname,
TO_DATE ('1/1/3000', 'MM/DD/YYYY') AS starttime, 'E' AS appttype,
NULL AS latestart, NULL AS endtime, '' AS typetitle,
emp.objid AS empobjid, 0 AS latitude, 0 AS longitude, 0 AS DURATION,
'' AS dispatchtype, 0 AS availability
FROM table_employee emp, table_user usr
WHERE emp.employee2user = usr.objid AND emp.field_eng = 1 AND usr.status = 1)
ORDER BY empobjid, starttime, endtime DESC
Operation Object Name Rows Bytes Cost Object Node In/Out PStart PStop
SELECT STATEMENT Optimizer Mode=HINT: ALL_ROWS 23 K 11312
SORT UNIQUE 23 K 3 M 11140
UNION-ALL
VIEW ORA_APPT_DISP_VIEW 17 K 3 M 10485
UNION-ALL
CONCATENATION
NESTED LOOPS OUTER 68 24 K 437
NESTED LOOPS 68 23 K 369
NESTED LOOPS OUTER 68 25 K 505
NESTED LOOPS OUTER 68 24 K 505
NESTED LOOPS 68 23 K 369
NESTED LOOPS 68 22 K 369
NESTED LOOPS OUTER 68 22 K 369
NESTED LOOPS 19 6 K 312
NESTED LOOPS 19 5 K 312
HASH JOIN 19 5 K 293
NESTED LOOPS 19 5 K 274
NESTED LOOPS 19 4 K 236
NESTED LOOPS 19 4 K 198
NESTED LOOPS OUTER 19 3 K 160
NESTED LOOPS OUTER 19 3 K 160
NESTED LOOPS OUTER 19 4 K 160
NESTED LOOPS OUTER 19 1 K 103
NESTED LOOPS OUTER 19 2 K 103
NESTED LOOPS OUTER 19 2 K 103
TABLE ACCESS BY INDEX ROWID TABLE_DISPTCHFE 19 1 K 46
INDEX RANGE SCAN GSA_SCHED_REPAIR 44 3
TABLE ACCESS BY INDEX ROWID TABLE_COMMIT_LOG 1 22
INDEX RANGE SCAN GSA_COMDFE 1 2
TABLE ACCESS BY INDEX ROWID TABLE_COMMIT_LOG 1 22
INDEX RANGE SCAN GSA_COMDFE 1 2
TABLE ACCESS BY INDEX ROWID TABLE_COMMIT_LOG 1 22 3
INDEX RANGE SCAN GSA_COMDFE 1 2
TABLE ACCESS BY INDEX ROWID TABLE_COMMIT_LOG 1 28
INDEX RANGE SCAN IND_CASE_COMMIT2CASE 2 2
TABLE ACCESS BY INDEX ROWID TABLE_COMMIT_LOG 1 28
INDEX RANGE SCAN IND_CASE_COMMIT2CASE 2 2
TABLE ACCESS BY INDEX ROWID TABLE_COMMIT_LOG 1 28 3
INDEX RANGE SCAN IND_CASE_COMMIT2CASE 2 2
TABLE ACCESS BY INDEX ROWID TABLE_CASE 1 30 2
INDEX UNIQUE SCAN CASE_OBJINDEX 1 1
TABLE ACCESS BY INDEX ROWID TABLE_SITE 1 12 2
INDEX UNIQUE SCAN SITE_OBJINDEX 1 1
TABLE ACCESS BY INDEX ROWID TABLE_ADDRESS 1 12 2
INDEX UNIQUE SCAN ADDRESS_OBJINDEX 1 1
TABLE ACCESS FULL TABLE_EMPLOYEE 1 34 1
INDEX UNIQUE SCAN SITE_OBJINDEX 1 6 1
INDEX UNIQUE SCAN USER_OBJINDEX 1 6
TABLE ACCESS BY INDEX ROWID TABLE_X_GSA_TIME_STAMPS 4 48 3
INDEX RANGE SCAN GSAIDX_TS2DISP 1 2
INDEX UNIQUE SCAN GBST_ELM_OBJINDEX 1 6
INDEX UNIQUE SCAN GBST_ELM_OBJINDEX 1 6
TABLE ACCESS BY INDEX ROWID TABLE_MOD_LEVEL 1 12 1
INDEX UNIQUE SCAN MOD_LEVEL_OBJINDEX 1
INDEX UNIQUE SCAN PART_NUM_OBJINDEX 1 6
INDEX UNIQUE SCAN GBST_ELM_OBJINDEX 1 6
INDEX UNIQUE SCAN SUBCASE_OBJINDX 1 6 1
NESTED LOOPS OUTER 68 25 K 505
NESTED LOOPS OUTER 68 24 K 505
NESTED LOOPS OUTER 68 24 K 437
NESTED LOOPS 68 23 K 369
NESTED LOOPS 68 23 K 369
NESTED LOOPS 68 22 K 369
NESTED LOOPS OUTER 68 22 K 369
NESTED LOOPS 19 6 K 312
NESTED LOOPS 19 5 K 312
NESTED LOOPS 19 5 K 293
NESTED LOOPS 19 5 K 274
NESTED LOOPS 19 4 K 236
NESTED LOOPS 19 4 K 198
NESTED LOOPS OUTER 19 4 K 160
NESTED LOOPS OUTER 19 3 K 160
NESTED LOOPS OUTER 19 3 K 160
NESTED LOOPS OUTER 19 2 K 103
NESTED LOOPS OUTER 19 2 K 103
NESTED LOOPS OUTER 19 1 K 103
TABLE ACCESS BY INDEX ROWID TABLE_DISPTCHFE 19 1 K 46
INDEX RANGE SCAN GSA_SCHED_REPAIR 44 3
TABLE ACCESS BY INDEX ROWID TABLE_COMMIT_LOG 1 22 3
INDEX RANGE SCAN GSA_COMDFE 1 2
TABLE ACCESS BY INDEX ROWID TABLE_COMMIT_LOG 1 22
INDEX RANGE SCAN GSA_COMDFE 1 2
TABLE ACCESS BY INDEX ROWID TABLE_COMMIT_LOG 1 22
INDEX RANGE SCAN GSA_COMDFE 1 2
TABLE ACCESS BY INDEX ROWID TABLE_COMMIT_LOG 1 28 3
INDEX RANGE SCAN IND_CASE_COMMIT2CASE 2 2
TABLE ACCESS BY INDEX ROWID TABLE_COMMIT_LOG 1 28
INDEX RANGE SCAN IND_CASE_COMMIT2CASE 2 2
TABLE ACCESS BY INDEX ROWID TABLE_COMMIT_LOG 1 28
INDEX RANGE SCAN IND_CASE_COMMIT2CASE 2 2
TABLE ACCESS BY INDEX ROWID TABLE_CASE 1 30 2
INDEX UNIQUE SCAN CASE_OBJINDEX 1 1
TABLE ACCESS BY INDEX ROWID TABLE_SITE 1 12 2
INDEX UNIQUE SCAN SITE_OBJINDEX 1 1
TABLE ACCESS BY INDEX ROWID TABLE_ADDRESS 1 12 2
INDEX UNIQUE SCAN ADDRESS_OBJINDEX 1 1
TABLE ACCESS BY INDEX ROWID TABLE_EMPLOYEE 1 34 1
INDEX UNIQUE SCAN EMPLOYEE_OBJINDEX 1
INDEX UNIQUE SCAN SITE_OBJINDEX 1 6 1
INDEX UNIQUE SCAN USER_OBJINDEX 1 6
TABLE ACCESS BY INDEX ROWID TABLE_X_GSA_TIME_STAMPS 4 48 3
INDEX RANGE SCAN GSAIDX_TS2DISP 1 2
INDEX UNIQUE SCAN GBST_ELM_OBJINDEX 1 6
INDEX UNIQUE SCAN GBST_ELM_OBJINDEX 1 6
INDEX UNIQUE SCAN GBST_ELM_OBJINDEX 1 6
INDEX UNIQUE SCAN SUBCASE_OBJINDX 1 6 1
TABLE ACCESS BY INDEX ROWID TABLE_MOD_LEVEL 1 12 1
INDEX UNIQUE SCAN MOD_LEVEL_OBJINDEX 1
INDEX UNIQUE SCAN PART_NUM_OBJINDEX 1 6
NESTED LOOPS OUTER 68 25 K 505
NESTED LOOPS OUTER 68 24 K 505
NESTED LOOPS OUTER 68 24 K 437
NESTED LOOPS 68 23 K 369
NESTED LOOPS 68 23 K 369
NESTED LOOPS 68 22 K 369
NESTED LOOPS OUTER 68 22 K 369
NESTED LOOPS 19 6 K 312
NESTED LOOPS 19 5 K 312
NESTED LOOPS 19 5 K 293
NESTED LOOPS 19 5 K 274
NESTED LOOPS 19 4 K 236
NESTED LOOPS 19 4 K 198
NESTED LOOPS OUTER 19 4 K 160
NESTED LOOPS OUTER 19 3 K 160
NESTED LOOPS OUTER 19 3 K 160
NESTED LOOPS OUTER 19 2 K 103
NESTED LOOPS OUTER 19 2 K 103
NESTED LOOPS OUTER 19 1 K 103
TABLE ACCESS BY INDEX ROWID TABLE_DISPTCHFE 19 1 K 46
INDEX RANGE SCAN GSA_REQ_ETA 44 3
TABLE ACCESS BY INDEX ROWID TABLE_COMMIT_LOG 1 22 3
INDEX RANGE SCAN GSA_COMDFE 1 2
TABLE ACCESS BY INDEX ROWID TABLE_COMMIT_LOG 1 22
INDEX RANGE SCAN GSA_COMDFE 1 2
TABLE ACCESS BY INDEX ROWID TABLE_COMMIT_LOG 1 22
INDEX RANGE SCAN GSA_COMDFE 1 2
TABLE ACCESS BY INDEX ROWID TABLE_COMMIT_LOG 1 28 3
INDEX RANGE SCAN IND_CASE_COMMIT2CASE 2 2
TABLE ACCESS BY INDEX ROWID TABLE_COMMIT_LOG 1 28
INDEX RANGE SCAN IND_CASE_COMMIT2CASE 2 2
TABLE ACCESS BY INDEX ROWID TABLE_COMMIT_LOG 1 28
INDEX RANGE SCAN IND_CASE_COMMIT2CASE 2 2
TABLE ACCESS BY INDEX ROWID TABLE_CASE 1 30 2
INDEX UNIQUE SCAN CASE_OBJINDEX 1 1
TABLE ACCESS BY INDEX ROWID TABLE_SITE 1 12 2
INDEX UNIQUE SCAN SITE_OBJINDEX 1 1
TABLE ACCESS BY INDEX ROWID TABLE_ADDRESS 1 12 2
INDEX UNIQUE SCAN ADDRESS_OBJINDEX 1 1
TABLE ACCESS BY INDEX ROWID TABLE_EMPLOYEE 1 34 1
INDEX UNIQUE SCAN EMPLOYEE_OBJINDEX 1
INDEX UNIQUE SCAN SITE_OBJINDEX 1 6 1
INDEX UNIQUE SCAN USER_OBJINDEX 1 6
TABLE ACCESS BY INDEX ROWID TABLE_X_GSA_TIME_STAMPS 4 48 3
INDEX RANGE SCAN GSAIDX_TS2DISP 1 2
INDEX UNIQUE SCAN GBST_ELM_OBJINDEX 1 6
INDEX UNIQUE SCAN GBST_ELM_OBJINDEX 1 6
INDEX UNIQUE SCAN GBST_ELM_OBJINDEX 1 6
INDEX UNIQUE SCAN SUBCASE_OBJINDX 1 6 1
TABLE ACCESS BY INDEX ROWID TABLE_MOD_LEVEL 1 12 1
INDEX UNIQUE SCAN MOD_LEVEL_OBJINDEX 1
INDEX UNIQUE SCAN PART_NUM_OBJINDEX 1 6
NESTED LOOPS 16 K 2 M 5812
HASH JOIN 16 K 2 M 5812
HASH JOIN 16 K 2 M 5286
TABLE ACCESS FULL TABLE_EMPLOYEE 13 K 441 K 28
HASH JOIN 16 K 1 M 5243
TABLE ACCESS FULL TABLE_SCHEDULE 991 11 K 2
HASH JOIN OUTER 16 K 1 M 5240
HASH JOIN OUTER 16 K 1 M 3866
HASH JOIN OUTER 16 K 1 M 450
HASH JOIN 16 K 1 M 44
TABLE ACCESS FULL TABLE_GBST_ELM 781 14 K 2
TABLE ACCESS FULL TABLE_APPOINTMENT 16 K 822 K 41
INDEX FAST FULL SCAN CASE_OBJINDEX 1 M 6 M 201
TABLE ACCESS FULL TABLE_SITE 967 K 11 M 3157
TABLE ACCESS FULL TABLE_ADDRESS 961 K 11 M 1081
INDEX FAST FULL SCAN SITE_OBJINDEX 967 K 5 M 221
INDEX UNIQUE SCAN USER_OBJINDEX 1 6
HASH JOIN 6 K 272 K 51
TABLE ACCESS FULL TABLE_USER 6 K 51 K 21
TABLE ACCESS FULL TABLE_EMPLOYEE 6 K 220 K 28

Hi,
First-off, it appear that you are querying a view. I would redo the auery against the base table.
Next, look at a function-based index for the DATE column. Here are my notes:
http://www.dba-oracle.com/t_function_based_indexes.htm
http://www.dba-oracle.com/oracle_tips_index_scan_fbi_sql.htm
Also, make sure you are analyzed properly with dbms_stats:
http://www.dba-oracle.com/art_builder_dbms_stats.htm
And histograms, if appropriate:
http://www.dba-oracle.com/art_builder_histo.htm
Lasty, look at increasing hash_area_size or pga_aggregate_tagtet, depending on your table sizes:
http://www.dba-oracle.com/art_so_undocumented_pga_parameters.htm
Hope this helps. . . .
Donald K. Burleson
Oracle Press Author

How to translate the key words in ABAp program from lower case to upper cas

How to translate the key words in ABAp program from lower case to upper case?

Hi Kittu,
You need to set the Pretty Printer settings to achieve key words in ABAP program from lower case to upper case.
Utilities -> Settings -> Pretty Printer (tab) -> Select third radio button.
Thats all.
Reward points if this helps.
Manish

Change the Name of Many ABAP programs.

Hi,
I need to change the name of many abap programs, because the company standard programs names has been changed, and will be necessary to change the name of all the programs, but there are many programs.
I'd like to know if someone know a transaction that will helped me or if will be necessary to develop an own program for it?
Thanks,
Marcos MS.

Hi
I think you have to rename indvidually using SE38 transaction.
But be careful to care of the following
(1) if the program is called with in a program, you need to change there also, before changing check the whereused and change accordingly
(2) If the program is called in the transaction, you need to change there also
Regards
Madhan

What are the performance tools in ABAP ?

What are the performance tools in ABAP ?
some thing like SQL Trace, Runtime Analysis ......what else ?

hi,
Runtime Monitor
http://help.sap.com/saphelp_47x200/helpdata/en/b5/fa121cc15911d5993d00508b6b8b11/content.htm
Memory Inspector
http://help.sap.com/saphelp_47x200/helpdata/en/a2/e5fc84cc87964cb2c29f584152d74e/content.htm
Run Time Analyser
http://help.sap.com/saphelp_47x200/helpdata/en/c6/617cafe68c11d2b2ab080009b43351/content.htm
SQL trace
http://help.sap.com/saphelp_47x200/helpdata/en/d1/801f7c454211d189710000e8322d00/content.htm

Performance issue in abap program

hi,
how can we improve the performance of abap program

hi,
read the follwing links
ABAP provides few tools to analyse the perfomance of the objects, which was developed by us.
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
by using this tool we can analyse the perfomance issues related to DATABASE calls.
Perfomance Techniques for improve the perfomance of the object.
1) ABAP/4 programs can take a very long time to execute, and can make other processes have to wait before executing. Here are some tips to speed up your programs and reduce the load your programs put on the system:
2) Use the GET RUN TIME command to help evaluate performance. It's hard to know whether that optimization technique REALLY helps unless you test it out.
3) Using this tool can help you know what is effective, under what kinds of conditions. The GET RUN TIME has problems under multiple CPUs, so you should use it to test small pieces of your program, rather than the whole program.
4) Generally, try to reduce I/O first, then memory, then CPU activity. I/O operations that read/write to hard disk are always the most expensive operations. Memory, if not controlled, may have to be written to swap space on the hard disk, which therefore increases your I/O read/writes to disk. CPU activity can be reduced by careful program design, and by using commands such as SUM (SQL) and COLLECT (ABAP/4).
5) Avoid 'SELECT *', especially in tables that have a lot of fields. Use SELECT A B C INTO instead, so that fields are only read if they are used. This can make a very big difference.
6) Field-groups can be useful for multi-level sorting and displaying. However, they write their data to the system's paging space, rather than to memory (internal tables use memory). For this reason, field-groups are only appropriate for processing large lists (e.g. over 50,000 records). If you have large lists, you should work with the systems administrator to decide the maximum amount of RAM your program should use, and from that, calculate how much space your lists will use. Then you can decide whether to write the data to memory or swap space.
Use as many table keys as possible in the WHERE part of your select statements.
7)Whenever possible, design the program to access a relatively constant number of records (for instance, if you only access the transactions for one month, then there probably will be a reasonable range, like 1200-1800, for the number of transactions inputted within that month). Then use a SELECT A B C INTO TABLE ITAB statement.
8) Get a good idea of how many records you will be accessing. Log into your productive system, and use SE80 -> Dictionary Objects (press Edit), enter the table name you want to see, and press Display. Go To Utilities -> Table Contents to query the table contents and see the number of records. This is extremely useful in optimizing a program's memory allocation.
9) Try to make the user interface such that the program gradually unfolds more information to the user, rather than giving a huge list of information all at once to the user.
10) Declare your internal tables using OCCURS NUM_RECS, where NUM_RECS is the number of records you expect to be accessing. If the number of records exceeds NUM_RECS, the data will be kept in swap space (not memory).
11) Use SELECT A B C INTO TABLE ITAB whenever possible. This will read all of the records into the itab in one operation, rather than repeated operations that result from a SELECT A B C INTO ITAB... ENDSELECT statement. Make sure that ITAB is declared with OCCURS NUM_RECS, where NUM_RECS is the number of records you expect to access.
12) If the number of records you are reading is constantly growing, you may be able to break it into chunks of relatively constant size. For instance, if you have to read all records from 1991 to present, you can break it into quarters, and read all records one quarter at a time. This will reduce I/O operations. Test extensively with GET RUN TIME when using this method.
13) Know how to use the 'collect' command. It can be very efficient.
14) Use the SELECT SINGLE command whenever possible.
15) Many tables contain totals fields (such as monthly expense totals). Use these avoid wasting resources by calculating a total that has already been calculated and stored.
Some tips:
1) Use joins where possible as redundant data is not fetched.
2) Use select single where ever possible.
3) Calling methods of a global class is faster than calling function modules.
4) Use constants instead of literals
5) Use WHILE instead of a DO-EXIT-ENDDO.
6) Unnecessary MOVEs should be avoided by using the explicit work area operations
see the follwing links for a brief insifght into performance tuning,
http://www.thespot4sap.com/Articles/SAPABAPPerformanceTuning_Introduction.asp
http://help.sap.com/saphelp_nw2004s/helpdata/en/d1/801f7c454211d189710000e8322d00/frameset.htm
regards
Rohan

Tweaking the performance of the PC

Hello i am a school student (in my final year) and i have some knowledge on tweaking the performance of the PC so i hope my way helps
Solution to Blue screen with error:
Hi that error is quite a rare error for windows 8.1 users who have their drivers up to date the most common cause is corrupted files in your hdd
if you have a backup of all your files and folders then it is recommended to do a full reinstallation of windows 8.1 and make sure u delete all your partitions including the system and recovery partition when you reinstall
once you have reinstalled download the latest drivers using Toshiba support page and also install latest windows updates as soon as possible once you have completely recovered your pc make sure to create a recovery media using the win 8.1 installation disk
and save that media then create a system image backup for the future
How to create system image backup: please follow this guide for images and videos
http://www.avoiderrors.net/create-system-image-backups-of-windows-8-1-and-restore-from-it/
and then once you have done that you should have a installation media and a system image backup then you can move to increasing the PC performance
PC performance boost tips:
Ok step one: creating a system restore point
(i): open your search tab in windows 8.1 desktop and type "create system restore point"(no quote marks) and select the system restore point option.
(ii): when the system properties tab open click on the button called create on the bottom on the tab
(iii): another tab will ask you to name the system restore point so you can identify it so type a name of your choice and click create
an thats all
Ok step two : remove unnecessary antivirus software (if you have any)
normally on a new PC you get a bunch of junk software along with a trail pack of an antivirus software usually it's McAfee so uninstall that and uninstall the other useless junk software if you have any problems with uninstallating then use Revo uninstaller
app to uninstall
since you did a reinstall of windows you will not have any of those so skip step two
Step three: Installing a good antivirus software
now the most recommended would be either Norton or Kaspersky but if you feel like going for free ones then i suggest
Avira or Avast as a good antivirus software also the renowned Malawarebytes is also quite good
i personally use malwarebytes free version since i can run it along side my main antivirus software without it conflicting with each other
once you have installed the software on your pc make sure you run a full scan for your first time
and move to step four.
Step four: System registry errors
to fix registry error you will need a third party software my personal recommendation is ccleaner and glary utilities
http://www.glarysoft.com/
http://www.piriform.com/
install either one and then run a maintenance on your PC the UI for both is quite user friendly so you won't have any problems
for glary utilities do the 1 click maintenance and for ccleaner do the cleaner option and then do the registry option
just analyze and click repair or fix error thats all once it does a repair do another analysis and if it shows 0 errors then your PC is clean if it shows errors then click repair again and repeat the process till you get 0 errors
then move to step five.
Step five: Startup speed
to speed up your start up just open glary utilities or ccleaner
for ccleaner click tools box and click on the "Startup" option then click on the programs that you feel are not needed on startup and click disable this option will not allow the programs to startup along with windows they will instead will
start up when you start them up
for glary click on the advanced tab and under the system control menu you will find the "Startup items" option disable the programs you feel are not needed during startup the bonus of glary is that it shows whether the program holds any relevance
to your PC if it is on startup or not so you will know whether it is needed or not once you disable your unwanted startup programs move to step six.
Step six: How to optimize your windows 8.1 paging file
watch this video and follow it's steps
https://www.youtube.com/watch?v=rQ98T4Qt42M
once you have finished step six then move to step seven
Step seven: How to enable windows 8.1 Hard Drive Write Caching
watch this video and follow it's steps carefully
https://www.youtube.com/watch?v=4gye7Odj-Io
once you have finished this then time to tweak your visual effects which is the last step
Step eight: Adjust visual effects
ok this is the last step
(i): open search bar and type
"Adjust the appearance and performance of Windows" (copy paste without quotes if you like)
and the performance tab will open
(ii): now click on the option "Adjust for best performance" and this will remove all your visual effects now i know it can look a little bad but the more options you have the more resource your PC is going to use but since the fonts look bad click
on the checkbox in the custom tab that says "smooth edges of screen fonts" this should give your pc a good look while using the least amount of resource and that is all.
Ok that all for performance tweak i hope your PC speeds up a bit please tell me if you have any problems
PS:
i do not own the videos in the video links i merely recommended them since the steps in the video are quite easy to follow even for a complete amateur.

Hi,
Thank you for sharing the solutions here. It will be very beneficial for other community members who have similar questions.
Regards.
Yolanda Zhu
TechNet Community Support

Performance of a ABAP program

Hi Friends,
I have one doubt , in Performance of a ABAP program.
Which one gives good performance in Select Statement
Open Cusor.. Select ... Close cusor OR
Select ..Package Size <n>
If anybody having the Idea please let me know .
With Thanx.
Elango

Hi elangoraj,
1. There is no standard calculation / method
to determine the package size.
2. Its totally subjective and depends upon
- the total number of records in database table,
- the time taken to fetch one package
- how many fetches we want.
3. Usually It can be kept from 100 - 500.
regards,
amit m.

Need help in improving the performance for the sql query

Thanks in advance for helping me.
I was trying to improve the performance of the below query. I tried the following methods used merge instead of update, used bulk collect / Forall update, used ordered hint, created a temp table and upadated the target table using the same. The methods which I used did not improve any performance. The data count which is updated in the target table is 2 million records and the target table has 15 million records.
Any suggestions or solutions for improving performance are appreciated
SQL query:
update targettable tt
set mnop = 'G',
where ( x,y,z ) in
select a.x, a.y,a.z
from table1 a
where (a.x, a.y,a.z) not in (
select b.x,b.y,b.z
from table2 b
where 'O' = b.defg
and mnop = 'P'
and hijkl = 'UVW';

987981 wrote:
I was trying to improve the performance of the below query. I tried the following methods used merge instead of update, used bulk collect / Forall update, used ordered hint, created a temp table and upadated the target table using the same. The methods which I used did not improve any performance. And that meant what? Surely if you spend all that time and effort to try various approaches, it should mean something? Failures are as important teachers as successes. You need to learn from failures too. :-)
The data count which is updated in the target table is 2 million records and the target table has 15 million records.Tables have rows btw, not records. Database people tend to get upset when rows are called records, as records exist in files and a database is not a mere collection of records and files.
The failure to find a single faster method with the approaches you tried, points to that you do not know what the actual performance problem is. And without knowing the problem, you still went ahead, guns blazing.
The very first step in dealing with any software engineering problem, is to identify the problem. Seeing the symptoms (slow performance) is still a long way from problem identification.
Part of identifying the performance problem, is understanding the workload. Just what does the code task the database to do?
From your comments, it needs to find 2 million rows from 15 million rows. Change these rows. And then write 2 million rows back to disk.
That is not a small workload. Simple example. Let's say that the 2 million row find is 1ms/row and the 2 million row write is also 1ms/row. This means a 66 minute workload. Due to the number of rows, an increase in time/row either way, will potentially have 2 million fold impact.
So where is the performance problem? Time spend finding the 2 million rows (where other tables need to be read, indexes used, etc)? Time spend writing the 2 million rows (where triggers and indexes need to be fired and maintained)? Both?

Boost the Performance of the database

I am getting a user call that the performance of the database is poor. I want to increase the performance of the database, can any one list out what are the checks and changes i have to do to increase the performance.
I am using topas command to find the top consume process in unix apart from this what are the area i have to look to boost the performance.
Help me in this regards.
Vel

there is no one area where you can pinpoint and say this needs tuning. performance tuning needs to be addressed from all fronts. but you make one change at a time and see if it gives the desired improvement. the areas that you have to look are
1. table design
2. sql tuning, proper use of indexes
3. sizing the tables, indexes
4. setting up proper SGA parameters, if you have memory in the machine, make optimal use of it by allocating it to oracle.
5. use of procedures and functions.
you may or may not get a call from the user, but if you feel that something could be improved by tuning, i guess its the job of the DBA to do that and squeeze every bit of performance from the hardware and the software.
check out oracle performance tuning docs for more detailed info.
Mukundan.

Improve the performance of the data activation on DSO.

Hi,
I would like to improve the performance of the data activation on DSO. 1000 records should be uploaded by 10 minutes.
Now it takes 10 minutes to activate data in DSO. And it is strange that it takes long time ( about 9 minutes) before starting activation.
ex :
in the request task log of the activation:
data activation 15:10:00
main process 15:10:01
technical status 15:10:21
But activation is started at 15:01:00 here. (this is started via process chain).
I have no idea why it takes so long time and how I can improve.
Kind regards,
Masaaki

Hi,
Try this also.
1. Remove Bex Reporting check box in ODS if not required.
2. Goto manage ODS -> activate -> activate in parallel -> increase the number of processes from there.For direct access try TCode RSODSO_SETTINGS. Not sure this is possible in your case.
thanks,
JituK

Has the performance of the iTunes store taken a dive?

Since the update to iTunes 6, the performance of the iTunes store seems very, very slow. It can take over a minute for the store to come up and a download of a single music track is many minutes.
Is this just my setup (on both a mac and pc with iTunes 6) or is the video trafic slowing everything down?
Dave

I've noticed the same thing...painfully slow downloading music now. Is it just the increase in traffic? Is anyone else experiencing this?

Options to improve the performance of the Job

Hi Team,
As part of the CRM Upgrade requirement, we are planning to use Account Life cycle functionality to reflect the status of an account.
As per the SAP recommendations( Note 1113330) we are currently executing the program CRM_BUPA_USERSTATUS_CONV2ROLE to convert user status master data to BP roles. We have noticed that this program is taking more time even when we run this for single business partner. We are trying to explore the options on how to improve the performance of the job. Incase if anyone have done this kind of exercise in any of their previous assignments or have information on this, request to provide your feedback on the below points.
1) Total Volume of Customer Master Data
2) How many records did we consider for one execution of the conversion program
3) How much time did it toke for one execution ?Did we do any performance tuning
4) When we are running the program in back ground mode..we are not getting the spool
showing the log information. Was there any custom report developed to view the log when
we execute the program in background mode..if so can you share us the technical details
6) Any information on how many work processors that were available for executing the jobs
Appreciate your help.
Regards,
Varun

Hello Udaya ,
Could you please tryy providing a range of BPs as per note 1121015? This can help in improving the performance .
Thanks & regards,
Krishnen

Increasing the performance of the abap program

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