Performance of application

Hi,
I would like to know..., when the server of a web-based application starts, there will be a thread running and checking for some details in the database every 1 hr. With this thread running and checking accessing the database every hr, would it affect the overall performance of the application? and will the application run out of resources? If not then is there any problems regarding the running of the thread?
Please guide me....
Thanks in advance
Regards
Lina

It could become a problem if you install multiple instances of your web-application although on hour is a pretty long sleep
you could do a separate program that checks what need to be check for all your application instances

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Cannot see Performance Scorecard application in Workspace

Hi all,
I just have installed HPS to our local environment. I have configured it as well as provisioned my user with all HPS privileges. But when I open Workspace, I cannot see Performance Scorecard application in Navigation -> Applications. I have tried to re-configure HPS, but without any success.
Could anyone tell me what is wrong? Am I missing something?
Thanks,
Vladino

Vladino,
Reconfigure the EPM Workspace just after configuring teh HPS you will get the desired result.

ADF features to improve performance of applications

Hello,
While trying to find a fix for my application (built using ADF and JSF) which is very, very slow I came across this article on Oracle site and the suggestions were:
1. In web.xml, disable oracle.adf.view.faces.CHECK_FILE_MODIFICATION. I know in my application it is set to True, because I get the warning that this option should not be used in Production environment. But when I saw Web.xml, I did not see any mention of this property.
2. In web.xml, disable oracle.adf.view.faces.DEBUG_JAVASCRIPT. See my web.xml below, it does not even mention this property.
3. In adf-faces-config.xml, set <debug-output> to false. See my adf-faces-config.xml below, it does not even mention this property.
Any other thing that you see (or not see) that could enhance performance?
my adf-faces-config.xml_
<?xml version="1.0" encoding="UTF-8"?>
<adf-faces-config xmlns="http://xmlns.oracle.com/adf/view/faces/config">
<skin-family>oracle</skin-family>
<client-validation-disabled>false</client-validation-disabled>
<accessibility-mode>inaccessible</accessibility-mode>
</adf-faces-config>
my web.xml_
<?xml version = '1.0' encoding = 'UTF-8'?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee">
<description>Web.xml file </description>
<filter>
<filter-name>adfFaces</filter-name>
<filter-class>oracle.adf.view.faces.webapp.AdfFacesFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>adfFaces</filter-name>
<servlet-name>Faces Servlet</servlet-name>
<dispatcher>FORWARD</dispatcher>
<dispatcher>REQUEST</dispatcher>
</filter-mapping>
<listener>
<listener-class>com.epam.hdrm.client.view.listener.CloseSessionListener</listener-class>
</listener>

<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet>
<servlet-name>resources</servlet-name>
<servlet-class>oracle.adf.view.faces.webapp.ResourceServlet</servlet-class>
</servlet>
<servlet>
<servlet-name>WorkflowRequestDetails</servlet-name>
<servlet-class>com.jasmine.hdrm.client.servlet.RequestDetails</servlet-class>
</servlet>
<servlet>
<servlet-name>adfAuthentication</servlet-name>
<servlet-class>oracle.adf.share.security.authentication.AuthenticationServlet</servlet-class>
<init-param>
<param-name>success_url</param-name>
<param-value>pages/dashboard.jspx</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.html</url-pattern>
</servlet-mapping>
<context-param>
<param-name>javax.faces.DEFAULT_SUFFIX</param-name>
<param-value>.jspx</param-value>
</context-param>
<context-param>
<param-name>javax.faces.STATE_SAVING_METHOD</param-name>
<param-value>client</param-value>
</context-param>
<servlet-mapping>
<servlet-name>resources</servlet-name>
<url-pattern>/adf/*</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>RequestDetails</servlet-name>
<url-pattern>/requestdetails</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>adfAuthentication</servlet-name>
<url-pattern>/adfAuthentication/*</url-pattern>
</servlet-mapping>
<session-config>
<session-timeout>60</session-timeout>
</session-config>

<mime-mapping>
<extension>html</extension>
<mime-type>text/html</mime-type>
</mime-mapping>
<mime-mapping>
<extension>txt</extension>
<mime-type>text/plain</mime-type>
</mime-mapping>
<jsp-config/>
<security-constraint>
<web-resource-collection>
<web-resource-name>allPages</web-resource-name>
<url-pattern>/pages/*</url-pattern>
</web-resource-collection>
<auth-constraint>
<role-name>myUser</role-name>
</auth-constraint>
</security-constraint>
<security-constraint>
<web-resource-collection>
<web-resource-name>adfAuthentication</web-resource-name>
<url-pattern>/adfAuthentication</url-pattern>
</web-resource-collection>
<auth-constraint>
<role-name>myUser</role-name>
</auth-constraint>
</security-constraint>
<login-config>
<auth-method>FORM</auth-method>
<form-login-config>
<form-login-page>login.html</form-login-page>
<form-error-page>error.html</form-error-page>
</form-login-config>
</login-config>
<security-role>
<role-name>myUser</role-name>
</security-role>
</web-app>

In the prod. environment CHECK_FILE_MODIFICATION has to be set to false.
    <context-param>
        <description>If this parameter is true, there will be an automatic check of the modification date of your JSPs, and saved state will be discarded when JSP's change. It will also automatically check if your skinning css files have changed without you having to restart the server. This makes development easier, but adds overhead. For this reason this parameter should be set to false when your application is deployed.</description>
        <param-name>org.apache.myfaces.trinidad.CHECK_FILE_MODIFICATION</param-name>
        <param-value>false</param-value>
    </context-param>It's there in v2.5
<?xml version = '1.0' encoding = 'windows-1252'?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5" xmlns="http://java.sun.com/xml/ns/javaee">

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

I have my applications deployed to Oracle 8.1.7 database using OSE in Oracle Application Server 9i. My machine has 256 MB RAM. It has both Oracle Application Server and Oracle 8i database server installed on it. When I try running my applications I find they are very slow. Can I get some guidelines using which I can better the performance of my Application? It can be in the form of code, memory ,disk space etc.
Thanks in advance,
Regards,
krithika.
null

The system configuration is more than enough to run java applications.
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.
Use a thread for time consuming operations.

Performance Issue : Application and oracle database in different sub-net

Hi,
We have an 24/7 application that uses oracle 11g R2 as the back end database. The application sits on a separate box and the oracle database sits on a separate box.
Unless we keep both the machines in the same sub-net, the throughput of the application becomes very slow and kind of un-usable in performance setups.
In fully loaded conditions, the application will be inserting around 12K records per minute into the database. In such scenario, restarting the application takes longer time (more than 2 hours) when the oracle server is on a different network as compared to the application. In real world, the oracle will be in a separate dedicated network and the DBAs resist to have an application in the same sub-net.
Is there a way we can keep the application and the oracle database server in a different network (but present in same location) and achieve same throughput/performance when both servers are on same subnet.
Thanks,
Krishna

871609 wrote:
Hi,
We have an 24/7 application that uses oracle 11g R2 as the back end database. The application sits on a separate box and the oracle database sits on a separate box.
Unless we keep both the machines in the same sub-net, the throughput of the application becomes very slow and kind of un-usable in performance setups.
In fully loaded conditions, the application will be inserting around 12K records per minute into the database. In such scenario, restarting the application takes longer time (more than 2 hours) when the oracle server is on a different network as compared to the application. In real world, the oracle will be in a separate dedicated network and the DBAs resist to have an application in the same sub-net.
Is there a way we can keep the application and the oracle database server in a different network (but present in same location) and achieve same throughput/performance when both servers are on same subnet.
Thanks,
KrishnaHave the DBAs explained why they resist having the apps and db servers in the same subnet? Every place I've ever worked configured it exactly that way ... db and apps servers on different machines in the same subnet.

Slow performance of application with 2 while-loops

I made an application with one while-loop addressing several FP devices which runs as expected in a FP-2015. Loop time is 100 ms.
If I add another while-loop with a timer, the performance is very slow. How come?

I tried to do a simular thing, but I did not notice a performance decrease. However it might be possible that this happens. For example, if you are calling a time critical vi in the second while loop, it will lock all other processes until it is finished. Or maybe you are calling a shared resource (allocate an array, access to a file, using a mutex) that the other loop holds. Until the shared resource is released the first while loop must wait before it can access that resource (memory, file, etc.).
Without looking at the source code it will be hard to say what is causing it. I recommend to remove part by part subVI's from the second loop, to debug where the problem exists. If you want I can have a look at the code, please reply to this thread.
ErikvH
A
pplications Engineering
National Instruments
Attachments:
Digital_Output.vi ‏56 KB

Performance issue - application running on front

Hi, I have a Strange performance issue:
- when I launch my app from flash builder without touching anything, it is slow,
- when I launch it from flash builder and immediately open another window and keep it in front of it, it is really fast
it is a windowed application, full screen, displaying multiple objects moving around
had anyone already had the issue?
thanks,
YAnn

For monitoring Azure using SCOM 2012R2, you can refer below link
http://blogs.technet.com/b/dcaro/archive/2012/05/02/how-to-monitor-your-windows-azure-application-with-system-center-2012.aspx
Please remember, if you see a post that helped you please click "Vote As Helpful" and if it answered your question, please click "Mark As Answer"Mai Ali | My blog:
Technical | Twitter:
Mai Ali

Performance of application slow

I have 4 perl applications running on a machine and the user complains that all of them
are slow
How and what can i check from the databases which they connect to to see if
there are any issues with the databases
What tuning steps/or database sessions tracing can i do and how. Any advice would
be greatly appreciated

apps_bn wrote:
How and what can i check from the databases which they connect to to see if
there are any issues with the databasesA good starting point is installing/running STATSPACK on the database or if you're already on 10g and have a suitable license use the AWR reports to gather details about your database performance metrics.
What tuning steps/or database sessions tracing can i do and howYou need to identify the sessions to enable tracing, or may be if you are able to change the code, enable tracing from within the perl code.
If you can do from within the application, simply add
ALTER SESSION SET EVENTS '10046 trace name context forever, level 8'
at the beginning of the session to enable extended trace. A helpful option is to add a trace file identifier to simplify the identification of the trace files generated:
ALTER SESSION SET TRACEFILE_IDENTIFIER = 'something_you_remember';
This will be part of the name of the trace file generated.
If you need to do it from outside, you can use one of the various methods to enable the extended trace.
In 9i, you can use the (undocumented) DBMS_SUPPORT package, in 10g you can use the (documented) DBMS_MONITOR package to enable a trace in a different session.
Regards,
Randolf
Oracle related stuff blog:
http://oracle-randolf.blogspot.com/
SQLTools++ for Oracle (Open source Oracle GUI for Windows):
http://www.sqltools-plusplus.org:7676/
http://sourceforge.net/projects/sqlt-pp/

Slow performance of Application server with a 9i database.

I am experiencing extremely slow perrformance of my 1.0.2.2.2 Application Server portal with my 9.0.1.2.1 database.
After logging in it takes forever just to connect to the Portal home page and even longer using the navigation link to connect to 'my pages'.
This degradation of performance pretty much happened over night. One day it was fine and the next it seemed to hang on every movement.
My server is running on Win 2000 with 1 GB of RAM. I ordered another GB of RAM hoping to alleviate a little of the congestion. I think it must hhave something to do with all the indexes, but I don't know how to tune the DB for it.
Does anyone have any idea of how to tune the DB to work with the Application Server portal? I am developing this portal for a client and I hate to think what will happen when it becomes fully rolled out and robust.

I tried to do a simular thing, but I did not notice a performance decrease. However it might be possible that this happens. For example, if you are calling a time critical vi in the second while loop, it will lock all other processes until it is finished. Or maybe you are calling a shared resource (allocate an array, access to a file, using a mutex) that the other loop holds. Until the shared resource is released the first while loop must wait before it can access that resource (memory, file, etc.).
Without looking at the source code it will be hard to say what is causing it. I recommend to remove part by part subVI's from the second loop, to debug where the problem exists. If you want I can have a look at the code, please reply to this thread.
ErikvH
A
pplications Engineering
National Instruments
Attachments:
Digital_Output.vi ‏56 KB

About how to perform the application of BDB HA

Hi Friends,
I'm Taiki.
I try to create the easy application of BDB HA by using C language.
So at first, I try to perform the BDB HA sample code of "Getting Start Guide".
But, I don't understand how to perform it.
Also, I would like to create the application of BDB HA with minimum configuration.
If you understand how to perform the program of BDB HA, could you please tell me how to perform it?
And, if you have very simple(easy) source code of BDB HA, could you please give me it?
For example, it is the application of only using get method and put method with replication(HA).
Best Regards,
Taiki

Dr. Clap - I am totally in my senses and I know what I am talking about.. that is Servlets. Maybe if I elaborate you will understand me better.
This is my scenario:
There are line items displayed on a web page. When the user selects a single line-item and chooses the option of delete... the user is prompted if he is sure. This is where I am using the JOptionPane. I
Real World Scenario: In a Web- Mail .. all the emails are displayed as line-items in the Inbox. When the user selects an email and choosed the option of delete.. the user is prompted if he is sure. This is done using a something simlar to the JOptionPane.
Hopefully I could explain it in a more satisfactory manner.
p.s: a bit of politeness doesnt cost a thing. :)

Increase performance of Application

Hi Expert team,
I am new in Apps field,
Can you please tell me which are the files that purge on weekly / monthly basis to improve performance.
waiting for reply.
Thnaks
Abdul

Please also see old threads which discuss the same topic.
https://forums.oracle.com/forums/search.jspa?threadID=&q=Purge+AND+Strategy&objID=c3&dateRange=all&userID=&numResults=15&rankBy=10001
https://forums.oracle.com/forums/search.jspa?threadID=&q=Purge+AND+Concurrent&objID=c3&dateRange=all&userID=&numResults=15&rankBy=10001
Thanks,
Hussein

Slow performance with applications

Hello,
We recently moved offices, and with that we changed a number of things in our setup. We added 2 new storage drives (attached via Thunderbolt 2) and setup networked user profiles on the iMac's.
The profiles are stored on storage drives which is attached via Thunderbolt 2 but seem to have issues when loading larger files. The spinning wheel of death seems to occur regularly in the Adobe products, Word and even Google Chrome.
We have 10 - 12 machines running on the network, currently it's all 1GbE connections, we are looking into a 10GbE connection from the server into the switch.
Is there a way to cache the users profile to the machine for faster performance? We are losing performance and would like to get the performance back that we had from when we had local user accounts.
Thanks
Jacob

Hey Reid,
Thanks for your help on this. I have a few more questions;
How do I get the desktop background to sync so if they move machine, the background is identical?
Automatic Sync, how does that work? Does it just sync whenever a change is made?
Cheers
Jacob
Strontium90 wrote:
Aha. So here is were the home folder types gets more complicated. A general primer.
Local Homes – These are the accounts on a workstation that were created on the workstation. The user data and the user attributes are local to the device. The local admin account is an example of this account type.
Mobile Accounts – These can be used when a workstation is bound to a directory server. This can be OD or AD. Without caching, the user can only login to the workstation if the domain controller is available. A local home folder is created on the workstation, account attributes are on the server, and no offline access is possible.
Mobile Accounts with Cached credentials (Mobility) – These can be used when a workstation is bound to a directory server. This can be OD or AD. Mobility allows the account credentials to be cached to the workstation for offline use. The home folder is on the workstation. The master user credentials are on the server but a cached copy is written to the workstation for offline use. For this to work you must use Mobility through MCX or Profile Manager. MCX is dead so be mindful of future migrations.
Network Home Folders – These can be used when a workstation is bound to a directory server. This can be OD or AD. In this case, the user's home folder is on the server and is accessed via an Automount record over SMB or AFP. Performance is based on your architecture and limitations are many. Network home folders are idea for education where computing resources are not one-to-one and were device usage is often less than an hour at a time.
Those are the basic account types. You are now asking for home folder sync. This too is available through the Mobility payload. With this feature enabled, the Mobile Accounts with Cached credentials works from a local home folder. However, this folder can be automatically synchronized to the server, allowing some level of user mobility.
When you say the workstations need to be bound to the OD Master, do you mean they need to be able to login etc? They are already capable of doing that.
Yes. You have already accomplished this as you are doing network homes. There is nothing else you need to do from a workstation perspective.
Im currently looking through Workgroup Manager. Is it as easy as changing the group manage preferences to "Always" and then set up the "Create home using" -> "Local home template"? How does this sync across the network if they want to use a different machine?
Generally, yes. As mentioned, Syncing is an additional payload. I strongly recommend testing the syncing on test accounts before enabling on real users. It can be a very tangled knot.
Also, before you commit to MCX, do the research. Apple is moving everything into Profile Manager and MCX was depreciated in 10.9. In 10.10 is sort of is not there. Workgroup Manager for 10.9 still runs in 10.10 but it is clear Apple wants this gone.

Slow Performance When Application is Slow

We have an application that unfortunately appears to eat up system free memory over time. When the load increase and memory decrease we also see that all queries against Oracle slow down dramatically doing a lot of physical reads. (Oracle runs on a separate server from the application.) When we restart the application memory is freed up on the application server and Oracle queries run very fast. However, over time they both slow down again. Again, we only restart the application not Oracle.
Does anybody have any idea why a slow application would result in slow query times? We measured the slowness and it is indeed all in the query execution. Any help would be appreciated.
Thanks,
Steve

when you execute it from toad, do you get all the rows back, or just a screen full and call it quits? if you don't actually page through all the rows, then they aren't really returned, and oracle wouldn't need to do as many reads.
<br><br>
you can also check v$sql to find out if both toad and your application are really using the same sql. perhaps there's an "alter session set current_schema" going on somewhere that is changing things (granted, it's probably not that, but my point is that it could be something).
<br><br>
maybe toad and the application have different optimizer modes (all_rows vs first_rows) which result in a different plan, and therefore different amounts of physical read.
<br><br>
you can try these scripts from my blog to check "What is actually running right now?". Start with the CURRENT_SQL script to get the address and child number of the running sql. even if two connections run the exact same sql statement, there could be differences (mentioned above) which would result in different children.

Performance Of Flex Application?

Hello all
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       For example if we have shoping store applicatiion and it has a search page and product list page to display products list in different formats like grid or table then markup plus data in normal web application will be loaded with each request.If user click on search page only then that page is loaded from server and if user want to view the search results in table format only then that page is loaded.
   I want to know how this work in Flex application.For data part It is clear that for each state whatever data is required is get by using services like HTTPService,WebService etc. But how state presentation part is get?Is the entire swf file containing all states related information is loaded before running the applicatio? For example as in our previous example presentation part of all states like shopping store serch state, product list in table format state and product list in grid format state in the begining of application .later on if user click on search link it will already have that state view information and it will get data for search part and put that data into view and present it to the user.For search result also it will be already having information about how to present that data so it will get data only and present it to user.
    If Flex works as i stated above then if we have very big application with many different stats then user has to wait for the loading time off all the states.Or there is provision for some backgroud loading of states that as soon as user request the application first time he gets the first view and then on other states are loaded in backgroud?
   If all the states are loaded at begining of application then what will be performance of application with many states?(Means in that case swf file of compiled application will be of big size and it will take time to load in browser.)
can anybody tell me about all these things in detail.I am sorry if my understanding of Flex is wrong.I am newbie.
Thanks in advance .

This seems more of an RIA performance question than a Flex specific one. Honestly though, modules aren't needed often in my experience (depends greatly on requirements).
You say that "only the part of the application that is needed" is downloaded, while this is technically true (a bit of an oversimplification as there are other advantages to be had from RIAs), you still have the round trip time required for every single request to the server. Since an RIA is generally a single bulk download (which may not even be needed if there's caching going on), usually you're talking about a single wait of a few seconds for loading vs multiple waits of a few seconds for page refreshes.
Even if the initial load time is as much as ~10 seconds (for the first visit), does that outweigh the 1 to 3+ second page refresh penalty constantly interrupting the user's work flow over time? Also consider Flex's AMF protocol, which blows competing formats (esp XML based) out of the water on performance. RIAs (especially Flex) win the performance game.

Improve windows application performance in c#

Actually my project logical function work is clustering documents means it's take number of documents grouping similar documents.in this i have logical methods for reding the data applying fuzzy clustering alogrithems.in this processing function is it's
take more time untill win Ui static then give the result.pls slove time complexity for this project
whenever i have perform the operations on win UI it's take more time responds to the win
form.it's take 15 -20 minutes after that give the result. i want improve the performance of
application in c#.

Hi
ramesh,
I think you can debug your code to test which line code take too long time.
In addition, Here are some tips about how to improve your performance of C# code. They will help you.
>>5 Tips to Improve Performance of C# Code
http://www.c-sharpcorner.com/UploadFile/dacca2/5-tips-to-improve-performance-of-C-Sharp-code/
>>How to increase performance for C#.net windows application
http://forums.asp.net/t/1641252.aspx?How+to+increase+performance+for+C+net+windows+application
Best regards,
Kristin
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