Execution time for first transaction

Hi,
We recently implemented SCM SNC 5.1- Work Order Collaboration module. In the process we built several custom display screens to act as real time reports since SNC does not have a reporting framework of its own.
However it appears that while executing the custom screens the performance is really poor while executing the screen for the first time after loggin in to the web screen. Thereafter it seems to work well.
Is the system filling the buffer or cache when executing for the first time?
It is observed that all the Work order related standardweb transactions also perform in a similar fashion.
Is there a parameter that controls this?
Please advice.
Thanks,
Kedar

Hi Kedar,
For the standard transactions SGEN transaction is used to generate all the program in the system.
As you are saying yours is custom development and working fine after the first execution, there is not any option to fasten the process. Try to optimization in your custom screen generation like,
1. Avoid extracting all the screen data extraction when first screen display.
2. Avoid unncessary data read during screen generation.
Regards,
Saravanan V

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Hi,
By default you can see the execution time at right side corner of sap session.
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Interface is taking lots of time for first time execution

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thank you santhosh for your reply..
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Hi Experts,
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From SAP
For old verions
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Query Execution Time for a Query causing ORA-1555

dear Gurus
I have ORA-01555 error , earlier I used the Query Duration mentioned in Alert Log and increased the Undo Retention as I did not find th UnDOBLKS column of v$undostat high for the time of occurence of ORA-01555..
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abhishek, as you are using an undo tablespace and have already increased the time that undo data is retained via undo_retention then you might want to consider the following ideas which were useful with 1555 error under manual rbs segment management.
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HTH -- Mark D Powell --
dear mark
Thanks for the excellent advise..I found that the error is coming because of frequent commits..which is item 2 as u righly mentioned ..
I think I need to keep a watch on the queries running , I was just trying to find the execution time for the queries..If there is any way to find the query duration without running a trace ..
regards
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Execution time for Call Library Function Node

I am experimenting with the Call Library Function Node block in LabVIEW and am curious if it should be running faster than what I'm seeing. For testing purposes, I have compiled and transfered to my RT target the .out file from the KB article http://digital.ni.com/public.nsf/allkb/81D1172E3C28A5E4862575CC0076A230 (I'm using the vxworks 6.1 version). The function in the .out file just multiplies two inputs together, adds a constant, and returns the result. I have put this inside a 1 kHz timed loop with a commanded period of 1 ms and via the Ticks(ms) block and shift registers I calculate the amount of time per loop execution. This process is apparently taking 5 ms per cycle and to me that seems slow. Is that roughly the correct execution time for this kind of setup? I will attach my test .vi file.
What I'm using:
Windows 7
LabVIEW 2009 SP1
NI-cRIO 9024 with NI-RIO 3.4.0
Solved!
Go to Solution.
Attachments:
test DLL.vi ‏31 KB

First off, the way you are doing timing isn't necessarily accurate because you don't know when the tick count VI is being called. For example, if it gets called on one iteration after your call library node executes, and the next iteration it gets called before the CLFN it executes, the subtraction doesn't include the call of the CLFN so you aren't seeing the true time it is taking for the dll to be called.
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CLA, LabVIEW Versions 2010-2013

Execution time for web reports

Hello every one,
How to calculate execution time for web reports, for query execution we will go through RSRT, by giving query name and press execute + Debug button then select statistical data & Do not Cache buttons then press enter, after getting output press on back button, we will get duration of the query.....
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Ex : Query ABC have XYZ as its drilldown report , i need to calculate execution time for XYZ report via ABC report.
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NP.

Hi,
For reports executed in java web you can add the parameter &PROFILING=X
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Best regards,
Janine

ADF application taking more time for first time and less from second time

Hi Experts,
We are using ADF 11.1.1.2.
Our application contains 5 jsp pages, 10 - 12 taskflows, and 50 jsff pages.
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Same thing is happening daily.
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Hi,
If you don't restart you WLS every day, then you should read about Tuning Application Module Pools and Connection Pools
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http://docs.oracle.com/cd/E15523_01/web.1111/b31974/bcampool.htm#sm0314
And adjust them to suit your needs.

How to find the Execution Time for Java Code?

* Hi everyone , i want to calculate the execution time for my process in java
* The following was the ouput for my coding,
O/P:-
This run took 0 Hours ;1.31 Minutes ;78.36 Seconds
*** In the above output , the output should come exactly what hours , minutes and seconds for my process,
but in my code the minutes are converted into seconds(It should not)...
* Here is my coding,
    static long start_time;
    public static void startTime()
        start_time = System.currentTimeMillis();
    public static void endTime()
        DecimalFormat df = new DecimalFormat("##.##");
        long end_time = System.currentTimeMillis();
        float t = end_time - start_time;
        float sec = t / 1000;
        float min = 0, hr = 0;
        if (sec > 60) {
            min = sec / 60;
        if (min > 60) {
            hr = min / 60;
        System.out.println("This run took " + df.format(hr) + " Hours ;"+ df.format(min) + " Minutes ;" + df.format(sec) + " Seconds");
    }* How to Calcualte exact timing for my process....
* Thanks

* Hi flounder, Is following code will wotk perfectly?
     public static void endTime()
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          long end_time = System.currentTimeMillis();
          float t = end_time - start_time;
          float sec = t / 1000;
          float min = 0, hr = 0;
          while(sec >= 60){
     min++;
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     if (min >= 60){
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     hr++;
          System.out.println("This run took " + df.format(hr) + " Hours ;"+ df.format(min) + " Minutes ;" + df.format(sec) + " Seconds");
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Can I reduce the execution time for a step in a TestStand ?

Hi,
I calculated the a single step execution time for TestStand Ver 2.0. It comes to around 20 milliseconds/step. Can I reduce this excution time ?
Are there any settings available for configuring execution time parameters except result logging and exception handlings to reduce the execution time ?

It's difficult to tell how you what time you are reporting for your step. Clearly we don't have control of the time it takes your code to execute. However, we are constantly working on reducing the overhead of calling the code. In addition, you don't mention the type of step you are calling. One way to have a common reference is to use the example \Examples\Benchmarks\Benchmarks.seq. Below have have posted the results of running this sequence with both tracing and result collection enabled and then disabled. I have a 700 MHz, 128 MB RAM, Dell PIII laptop. In this example there is no code within the code modules. You notice that calling a DLL has the least overhead with a minimum of 7.459 ms with tracing and results enabled and 0.092 ms with tracing and results disabled. Although not included below, if I enable results be disable tracing I get a minimum time of 0.201 ms, a 100x improvement on your time.
With Results and Tracing enabled.
7.578 milliseconds per step for CVI Standard Prototype - Object File
7.579 milliseconds per step for CVI Standard Prototype - DLL
7.459 milliseconds per step for DLL Flexible Prototype
8.589 milliseconds per step for DLL Flexible Prototype Numeric Limit
9.563 milliseconds per step for DLL Flexible Prototype Numeric Limit with Precondition
10.015 milliseconds per step for DLL Flexible Prototype Numeric Limit with Precondition and 4 Parameters
7.868 milliseconds per step for ActiveX Automation
8.892 milliseconds per step for LabVIEW Standard Prototype
With tracing and results disabled.
0.180 milliseconds per step for CVI Standard Prototype - Object File
0.182 milliseconds per step for CVI Standard Prototype - DLL
0.092 milliseconds per step for DLL Flexible Prototype
0.178 milliseconds per step for DLL Flexible Prototype Numeric Limit
0.277 milliseconds per step for DLL Flexible Prototype Numeric Limit with Precondition
0.400 milliseconds per step for DLL Flexible Prototype Numeric Limit with Precondition and 4 Parameters
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How can i calculate execution time for methods?

I'm making a project that i want to calculate execution time for a
method in "miliseconds" or "microseconds".You see,I have a sort algorithm and i want to calculate execution time of this algorithm.How can i do?
Thanks...

Just remembered.
The answer you get isn't trustworthy below a hundred millis, so you may need to sort a hundred or a thousand times to get a reasonable elapsed time. You also need to run the test five or ten times and take an average. In Windows you should fire up the Task Manager and be sure that your other CPU usage is as near to zero as you can get.

Estimate execution time for CTAS

Hi,
I am searching for long to find a way to estimate the execution time for CTAS commands. I am a DBA. Our users run CTAS commands to load millions of rows. The commands fetch data from 4-5 very big tables each with millions of records and process them using where clause and group by clause and finally create the table. All these things are coded in the CTAS command. These CTAS sometime takes long time like 5 , 8 Hrs. Users frequently ask me to find how long it's going to take. I use both OEM and TOAD. But I couldn't find the time estimated from these tools. I feel that there must be some way, but I don't know the method.
Can any body please help me in this regard?
Thanks & Regards
Ananda Basak

It depends on a number of factors chief among them how accurate your estimate needs to be but also including things like what version of Oracle you're using, how accurate your database statistics are, etc.
One option is to look at the TIME column in the plan. For example, if I wanted to do a CTAS to create a copy of the EMP table, the optimizer expects that to take on the order of a second. Of course, the optimizer's estimates are only estimates and are only as accurate as the database statistics that are in place. If the optimizer generates a bad plan, it's likely because the optimizer expects some operation to take much more or much less time than it does in reality in which case the optimizer's runtime estimate is likely to be way off.
SQL> explain plan for create table emp_copy as select * from emp;
Explained.
SQL> ed
Wrote file afiedt.buf
1 select *
2*   from table( dbms_xplan.display() )
SQL> /
PLAN_TABLE_OUTPUT
Plan hash value: 2748781111
| Id | Operation              | Name     | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | CREATE TABLE STATEMENT |          |    14 |   546 |     4   (0)| 00:00:01 |
|   1 | LOAD AS SELECT        | EMP_COPY |       |       |            |          |
|   2 |   TABLE ACCESS FULL    | EMP      |    14 |   546 |     3   (0)| 00:00:01 |
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SELECT *
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Ideal execution time for any program

Hi,
Is there any method to determine the ideal execution time for a program ?
Or else how to determine that ?
I just wanted the max. time that a program can take so that the performance would not be hampered.
Thanks,
Binay.

did you ask for the 'ideal execution time' or 'how to measure execution times'?
The second question was answered in one of your other questions.
Optimization:
Do SQL Trace, go to Summary by SQL statement, check 10 Top contributions (time = duration).
Try to optimize them, note minimal time per record, if larger than 10.000 microsecodns, then you should index usage.
Do SE30, go to hit list, sort by net time, again address 10 Top contributions, try to optimize, check the coding.
Do optimization and trace again, check again 10 Top contributions ....
Siegfried

How to get execution time for a view inside procedure ?

Hi,
I want execution time for all the views in my database. I tried "execute immediate" but it does not seem to work.
It is not waiting to complete the execution of view to go to next step.
If I am executing the same statement in sqlplus, it is displaying correct time.
Here is my code:
Begin
output_file := UTL_FILE.FOpen ('RECORDING',v_FileName, 'W', 32767);
Open viewcur;
Loop
Fetch viewcur into v_view_name;
     Exit when viewcur%notfound;
     SELECT to_char(systimestamp,'DD-MON-YYYY HH24:MI:SS.FF') into v_start_time from dual;
     v_stmt := 'Select * from ' ||v_view_name ;
     Execute Immediate v_stmt;
SELECT to_char(systimestamp,'DD-MON-YYYY HH24:MI:SS.FF') into v_end_time from dual;
v_record_str := v_start_time||','||v_view_name||','||v_end_time;
     UTL_FILE.PUT_LINE(output_file, v_record_str);
End Loop;
Close viewcur;
utl_file.fClose(output_file);
End ;
Oracle version: 11.1.0.6.0

Hi,
Running with a user with dba privileges:
DECLARE
    CURSOR viewcur IS
        SELECT table_name
        FROM   dictionary d
        WHERE d.table_name LIKE 'ALL_A%';
    output_file UTL_FILE.file_type;
    v_FileName VARCHAR2(30) := 'TEST_VIEW_TIME.TXT';
    v_view_name dictionary.table_name%TYPE;
    v_start_time varchar2(30);
    v_end_time varchar2(30);
    v_record_str varchar2(200);
    v_stmt varchar2(200);
BEGIN
    output_file := UTL_FILE.FOpen('EXT_FILES', v_FileName, 'W', 32767);
    OPEN viewcur;
    LOOP
        FETCH viewcur
            INTO v_view_name;
        EXIT WHEN viewcur%NOTFOUND;
        SELECT TO_CHAR(systimestamp, 'DD-MON-YYYY HH24:MI:SS.FF')
        INTO   v_start_time
        FROM   dual;
        v_stmt := 'Select * from ' || v_view_name;
        EXECUTE IMMEDIATE v_stmt;
        SELECT TO_CHAR(systimestamp, 'DD-MON-YYYY HH24:MI:SS.FF')
        INTO   v_end_time
        FROM   dual;
        v_record_str := v_start_time || ',' || v_view_name || ',' || v_end_time;
        UTL_FILE.PUT_LINE(output_file, v_record_str);
    END LOOP;
    CLOSE viewcur;
    utl_file.fClose(output_file);
END;
/TEST_VIEW_TIME.TXT:
02-JUL-2009 11:48:47.953000,ALL_ARGUMENTS,02-JUL-2009 11:48:47.953000
02-JUL-2009 11:48:47.953000,ALL_ALL_TABLES,02-JUL-2009 11:48:47.953000
02-JUL-2009 11:48:47.953000,ALL_ASSOCIATIONS,02-JUL-2009 11:48:47.953000
02-JUL-2009 11:48:47.953000,ALL_AUDIT_POLICIES,02-JUL-2009 11:48:47.999000
02-JUL-2009 11:48:47.999000,ALL_AUDIT_POLICY_COLUMNS,02-JUL-2009 11:48:48.093000
02-JUL-2009 11:48:48.093000,ALL_AWS,02-JUL-2009 11:48:48.187000
02-JUL-2009 11:48:48.187000,ALL_AW_PS,02-JUL-2009 11:48:48.187000
02-JUL-2009 11:48:48.187000,ALL_APPLY,02-JUL-2009 11:48:48.343000
02-JUL-2009 11:48:48.343000,ALL_APPLY_PARAMETERS,02-JUL-2009 11:48:48.421000
02-JUL-2009 11:48:48.421000,ALL_APPLY_KEY_COLUMNS,02-JUL-2009 11:48:48.437000
02-JUL-2009 11:48:48.437000,ALL_APPLY_CONFLICT_COLUMNS,02-JUL-2009 11:48:48.781000
02-JUL-2009 11:48:48.781000,ALL_APPLY_TABLE_COLUMNS,02-JUL-2009 11:48:48.828000
02-JUL-2009 11:48:48.828000,ALL_APPLY_DML_HANDLERS,02-JUL-2009 11:48:48.890000
02-JUL-2009 11:48:48.890000,ALL_APPLY_PROGRESS,02-JUL-2009 11:48:48.968000
02-JUL-2009 11:48:48.968000,ALL_APPLY_ERROR,02-JUL-2009 11:48:49.015000
02-JUL-2009 11:48:49.015000,ALL_APPLY_ENQUEUE,02-JUL-2009 11:48:49.234000
02-JUL-2009 11:48:49.234000,ALL_APPLY_EXECUTE,02-JUL-2009 11:48:49.281000
02-JUL-2009 11:48:49.281000,ALL_AW_PROP,02-JUL-2009 11:48:49.531000
02-JUL-2009 11:48:49.546000,ALL_AW_OBJ,02-JUL-2009 11:48:49.578000
02-JUL-2009 11:48:49.578000,ALL_AW_PROP_NAME,02-JUL-2009 11:48:49.609000
02-JUL-2009 11:48:49.609000,ALL_AW_AC,02-JUL-2009 11:48:49.624000
02-JUL-2009 11:48:49.624000,ALL_AW_AC_10G,02-JUL-2009 11:48:49.640000Regards,

Different execution times for back ground jobs - why?

We have few jobs scheduled and each time they run, we see a different execution times. Some times, it increases and some times it decreases steeply . What could be the reasons?
Note:
1. We have the same load of jobs on the system in all the cases.
2. We haven't changed any settings at system level.
3. Data is more or less at the same range in all the executions.
4. We mainly run these jobs
Thanks,
Kiran
Edited by: kiran dasari on Mar 29, 2010 7:12 PM

Thank you Sandra.
We have no RFC calls or other instances. Ours is a very simple system. We have two monster jobs, the first one for HR dataand second an extract program to update a Z table for BW loads.
Our basis and admin confirmed that there are no network issues
Note: We are executing these jobs over the weekend nights.
Thanks,
Kiran

Execution time for first transaction

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