Test the performance of JSP application

is there any trusted tools to test the performance of jsp web applciation with JDBC code ?
i need to test the performnce wth huge number of users ,
thanks

Hello,
I think the author I already mentioned used this: http://grinder.sourceforge.net/
It is for free.
We have been writing our own tool. The tool was actually not difficult. Problematic was the interpretation of the results. I can only advise you to keep a good protocol about what you have been meassuring an how you did this. Otherwise people will come up with strange ideas about the results of your loadtest.
You have to keep an eye on system ressources: The memory of the boxes involved, but also silly things like available connections. By opening and closing socket connections, we managed to run out of ressources on a SUN pretty fast...
Please be also aware that a loadtest, ..well produces load. Since we were testing a system where the middletier called up to the mainframe for data, we had to pick late hours for our test. At one evening we took 50% of the capacity of the mainframe... Don't underestimate the time it needs for negotiating and scheduling such meassurements!
good luck,
einar

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You are probalbly doing time-consuming operations in the event thread. Which blocks the event thread and the gui seems not to be responding. If you you have a very bad design.
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Regarding the performance comparision of application/web servers

i want the details of performance comparision of application/web servers and which is the best, efficient and easy to use.

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- what code you are running on it.
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Number of elements in the FP affecting the performance of my application ?

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l ad the block diagram of the appliction.
Any help you can give will be deeply appreciated.
PS : I´ve tried to sent the zipped file but awindow appeared notifying me that Developer Exchange is down for maintenance. If you need any more information to clarify what I mean please let me know.
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Hello,
I think the author I already mentioned used this: http://grinder.sourceforge.net/
It is for free.
We have been writing our own tool. The tool was actually not difficult. Problematic was the interpretation of the results. I can only advise you to keep a good protocol about what you have been meassuring an how you did this. Otherwise people will come up with strange ideas about the results of your loadtest.
You have to keep an eye on system ressources: The memory of the boxes involved, but also silly things like available connections. By opening and closing socket connections, we managed to run out of ressources on a SUN pretty fast...
Please be also aware that a loadtest, ..well produces load. Since we were testing a system where the middletier called up to the mainframe for data, we had to pick late hours for our test. At one evening we took 50% of the capacity of the mainframe... Don't underestimate the time it needs for negotiating and scheduling such meassurements!
good luck,
einar

How to improve the performance of applications in Oracle Application Server 9i ?

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I am investigating the performance of an application.
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lol
work with more memory h�h�....
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Any parameter to measure the Performance between two server

Currently I am running more 20 dvlp database in 2 cpu 2 GB RAM Windows2000
server
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It takes long time than usual across our office
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Willbe sufficent enough to give an idea whether the new server is performing better or worse
Any susgestions
Message was edited by:
Maran Viswarayar

I don't think so, it depends on the way you conduct
your testing environment, how you build it, and
what's the goal of this test. I wouldn't name it
synthetic test, I name it standarized test
environment.Just to be clear, I have nothing against doing synthetic tests, and I don't intend "synthetic" to be in any way derogatory. This sort of testing can be quite valuable. You just need to be careful about extrapolating the performance of this sort of testing to the performance that your application will actually achieve. Since the workload your application is performing is generally going to be quite different than the synthetic workload you're describing, the comparison may not be direct.
OS performance metrics can be gathered directly with
the OS party. But knowing exactly how your database
will perform in your specific environment ... You'll
have to make up a testing environment.All true. Knowing how your database will perform, particularly on I/O intensive operations, though, doesn't tell you how a particular application running in your database may perform. Your application may, for example, be CPU bound or may be doing very non-random IO operations.
Given that the original poster is seeing odd disk behavior, and his primary concern is with the IO subsystem, I would suggest starting the test there.
Performance problems have always been multifactorial,
and this always makes a tuning approach to be
obscure. Unless a professional has enough practical
experience, it becomes a black box problem where
interactig subsystems will make it difficult the goal
of finding the most meaningful performance thread and
its interactions.Very true
I have used this test approach and it has assisted me
in obtaining an environment free of subjectivities
where I have been able to benchmark Oracle behaviour
on different platforms.
This kind of test has also helped me in creating
controled stressing situations where I can
proactively plot potential bottlenecks and meassure
different rdbms architectural aspects such as
transactional mechanism, sorting, undo segments,
latches, networking, etc. just to name a few, at
different load scenarios.Synthetic test loads are excellent for this sort of database performance investigation, agreed.
It is sometimes difficult to find hundreds of
volunteers to test the application to find the point
of maximum sessions with minimum response time. This
testing approach has been useful in hiring a variable
number of virtual volunteers that are willing to test
the environment any time. So it has also allowed me
to create useful reports, such as the "users load vs.
response time" which helped me in predicting my
system operational ceilings, and it has been pretty
accurate.If we're talking about testing application performance, rather than testing generic database performance, I'd maintain that you shouldn't need any volunteers. You should have scripts that replicate the key business operations the application does and you should have a harness that can start up arbitrary numbers of concurrent sessions (admittedly, you may need a handful of volunteers to launch these scripts from a sufficient number of laptops).
It all depends on the way you define your test
environment.100% agreed.
Justin

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Hi,
I have a performance issue with my applications. It takes a lot of time to load, as it is making several calls to the database. And, moreover, the resultset has more than 2000 records that are returned. I need to know what is the better way to improve the performance
1. What is the solution to optimize the database calls so that I can improve the performance of my application and also improve on the trun around time to load the web pages.
2. Stored procedures are a good way to get the data from the result set iteratively. How can I implement this solution in Java?
This is very important, and any help is greatly appreciated.
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latha_kaps wrote:
I have a performance issue with my applications. It takes a lot of time to load, as it is making several calls to the database. And, moreover, the resultset has more than 2000 records that are returned. I need to know what is the better way to improve the performance
1. What is the solution to optimize the database calls so that I can improve the performance of my application and also improve on the trun around time to load the web pages.
2. Stored procedures are a good way to get the data from the result set iteratively. How can I implement this solution in Java?
This is very important, and any help is greatly appreciated.1. 2000 records inside a resultset are not a big number.
2. Which RDBMS you use?
Concerning the answer to 2. you have different possibilities. The best thing is always to handle as many transactions as possible inside the database. Therefore a stored procedure is the best approach imho.
Below there is an example for an Oracle RDBMS.
Assumption #1 you have created an object (demo_obj) in your Oracle database:
create type demo_obj as object( val1 number, val2 number, val3 number);
create type demo_array as table of demo_obj;
/Assumption #2 you've created a stored function to get the values of the array in your database:
create or replace function f_demo ( p_num number )
return demo_array
as
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begin
    select demo_obj(round(dbms_random.value(1,2000)),round(dbms_random.value(2000,3000)),round(dbms_random.value(3000,4000)))
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end;
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import java.sql.*;
import java.io.*;
import oracle.sql.*;
import oracle.jdbc.*;
public class VarrayDemo {
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          DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
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          Object attributes[] = new Object[3]; // "attributes" of the "demo_obj" in the database
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          // create an array of objects which has 3 attributes
          // we are building a template of that db object
          // the values i pass below are just generic numbers, 1,2,3 mean nothing really
          attributes[0] = new Integer(1);
          attributes[1] = new Integer(2);
          attributes[2] = new Integer(3);
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          oracle.sql.ARRAY demo_array = new oracle.sql.ARRAY(
                    new oracle.sql.ArrayDescriptor("DEMO_ARRAY", conn), conn,
                    demo_obj);
          // call the plsql function
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               (OracleCallableStatement) conn.prepareCall("BEGIN ? := F_DEMO(?);END;");
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          oracle.sql.ARRAY results = (oracle.sql.ARRAY) cs.getArray(1);
          // flip it into a result set
          ResultSet rs = results.getResultSet();
          // process the result set
          while (rs.next()) {
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               oracle.sql.STRUCT obj = (STRUCT) rs.getObject(2);
               Object vals[] = obj.getAttributes();
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          cs.close();
          conn.close();
}For selecting 20.000 records it takes only a few seconds.
Hth

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You can use JDeveloper's Data Web Beans - these are data-aware controls for JSPs.
Start by creating a JSP from scratch using the Business Components JSP application wizard. Instructions are in the online documentation, under:
User Guides
->Developing Applications
->Developing Web Applications
->Creating a JSP application
Or you can learn how to do this by stepping through the Business Components tutorial. The tutorial is also in the online documentation, under Tutorials and Sample Applications.
Once you're more familiar with data-aware JSPs, you can customize a data-aware JSP or create your own from scratch. Instructions for customizing JSPs are also in the online documentation, following the instructions for creating a JSP.
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How to increase the performance of an insert query?

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As of now we are getting only 30/sec.We are not knowing how to tune the database for getting this performance.
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Test the performance of JSP application

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