Will Servlet Filters affect performance

Hi,
is it true that Servlet Filters will have impact on Web application performance by slowing things? any suggestion plz..
Regards,
A.

The question "Will X affect performance" is almost always bogus.
It only makes sense to compare the performance of two code bases that perform a certain predetermined task. In your case, you could make your question not be bogus by comparing an application that uses servlet filters with another application that performs the same functions in a different way. You don't seem to be prepared to do that.

Similar Messages

Duplication of movieclip will affect performance?

hi
i have doubt on duplicating movieclip.
i have a movieclip, it has a huge codes inside in it. when i duplicate this movieclip into 5 means, all the duplicated movieclip will work based on its repective code inside. this will affect the performance or not.
any suggestion pls.

In terms of filesize it should not affect performance. In terms of processing, anytime you increase the amount of simultaneous processing that is occuring you can affect performance. It probably wouldn't matter too much if you had your code once in the main timeline for all five or each has its own set of code. If the amount of processing is the same, the performance should be the same. You should try it with different numbers of them and see if performance is grossly affected.

Convergence - AlphaImageLoader affects performance

According to the YSlow FireFox extension, Convergence's extensive use of AlphaImageLoader is a detriment to performance.
Grade F on Avoid AlphaImageLoader filterThere are a total of 73 filters
* https://.../iwc_static/layout/css/main.css?...
* https://.../iwc_static/layout/themes/default/default.css?...
The IE-proprietary AlphaImageLoader filter attempts to fix a problem with semi-transparent true color PNG files in IE versions less than Version 7. However, this filter blocks rendering and freezes the browser while the image is being downloaded. Additionally, it increases memory consumption. The problem is further multiplied because it is applied per element, not per image.>
Do they really affect performance? If so, what would happen if I stripped them out of the css files?
Edited by: jessethompson on Oct 5, 2009 8:54 PM

jessethompson wrote:
According to the YSlow FireFox extension, Convergence's extensive use of AlphaImageLoader is a detriment to performance. The AlphaImageLoader filter is only applied when the client is using IE6 i.e. all of the AlphaImageLoader CSS rules have a class name of ".dj_ie6".
So removing these rules is not going to improve the speed of non-IE6 browsers and will cause IE6 images to have non-transparent backgrounds.
Regards,
Shane.

Does frequent garbage collection affect performance

Hi,
I have written code in a filter for all the servlets in the application.
Depending on the servlet requested I set the objects to null after
it has finished its work.
My question is that since the filter will be executed each time a
servlet is requested,could it result in affecting performance ?

Styna wrote:
I'm writing off my own experience so take my advice with a grain of salt.
The battery is known to 'degrade' when reaching excessive temperatures. Apple recommends keeping the temperature between to 32 degrees Fahrenheit and 95 degrees Fahrenheit.
I used to game heavily on my phone which would get hot. After a year, I noticed that I had to fully charge my phone 3 times a day in order to make it through a day with light usage. Also, I noticed that the phone would die when the battery percentage display would be at all sorts of numbers, 37%, 43%, 7%, and sometimes stay on 1% for 5 minutes while running a processor-intensive game.
After taking my phone to the Apple store for a diagnostic, Apple confirmed issues with the battery. There's no way to know if having my phone stay hot for long periods of time damaged the battery or if I just had a defective battery.
My recommendation is if you know you will be gaming heavily to take the case (if you have one) off your phone and to be in a cool environment to try to keep the phone from getting too hot.
Your battery failed not because of temperature, but you used it up. The battery is spec'd for 400 full charge/discharge cycles. If you fully drain the battery every day that's about 14 months. If you drain it more than once a day that's less time. The phone has a thermal protection circuit that will shut it down if it gets hot enough to damage anything. And actually Lithium batteries do not degrade at higher temperatures. Electric cars and plugin hybrids use the same battery technology (like the Tesla, Chevy Volt, Prius Plugin, Nissan Leaf) and they run much hotter than iPhones. And last 10 years.

Error in Oracle 10g (10.0.3) in Servlet Filtering

Hi
I found this error on oracle 10g (10.0.3) Version. my same code is working on 9.0.4 can you please tell what is the problem? I am using servlet filtering.
Mine is swing base application which will call applet and this will call Servlet.
500 Internal Server Error
java.lang.IllegalStateException: dispatcher chain is empty
     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.0.3.0.0) - Developer Preview].server.http.EvermindHttpServletRequest.getCurrentDispatcher(EvermindHttpServletRequest.java:3975)
     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.0.3.0.0) - Developer Preview].server.http.EvermindHttpServletRequest.getParameters(EvermindHttpServletRequest.java:1393)
     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.0.3.0.0) - Developer Preview].server.http.EvermindHttpServletRequest.getParameter(EvermindHttpServletRequest.java:2126)
     at com.fmr.cfit.security.IdentityAgent.getUserIdFromParameter(Unknown Source)
     at com.fmr.cfit.security.IdentityAgent.getUserId(Unknown Source)
     at com.fmr.cfit.security.IdentityAgent.doFilter(Unknown Source)
     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.0.3.0.0) - Developer Preview].server.http.FileRequestDispatcher.handleWithFilter(FileRequestDispatcher.java:130)
     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.0.3.0.0) - Developer Preview].server.http.FileRequestDispatcher.forwardInternal(FileRequestDispatcher.java:210)
     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.0.3.0.0) - Developer Preview].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:824)
     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.0.3.0.0) - Developer Preview].server.http.HttpRequestHandler.run(HttpRequestHandler.java:270)
     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.0.3.0.0) - Developer Preview].server.http.HttpRequestHandler.run(HttpRequestHandler.java:112)
     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.0.3.0.0) - Developer Preview].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:291)
     at java.lang.Thread.run(Unknown Source)

I am able to resolve the issue:
The mistake I was doing was creating ORACLE_HOME in the enviornment variable, as I have Oracle 10 G database and SOA suite on the same machine, so it was creating a clash, the right approach is setting the ORACLE_HOME through command prompt, I was setting ORACLE_HOME because while executing the configure_oid.bat file it requires ORACLE_HOME to be set.
-Yatan

Urgent : Problem with Servlet Filters in Weblogic6.1

Hi,
We have developed an application using Tomcat4.1.24 with Weblogic6.1 Service Pack2.
Now we are removing the Tomcat and moving the web layer into weblogic. We have implemented Servlet Filters and Listeners.
When I converted .jar and .war files into .ear file and deployed into Weblogic6.1. But that application is not deploying. I found that Weblogic6.1 does not support Filters and Listeners from Servlet2.3.
When I tried to deploy in the Weblogic6.1, it is giving the error as " java.lang.reflect.UndeclaredThrowableException".
Could somebody please give me a solution how my filters and listeners can make working with weblogic6.1.
Is there any solution.. My application is successfully working with Weblogic8.1. But I want the solution in weblogic6.1. It would be great if somebody can give me solution how to make Filters n Listeners working with Weblogic6.1.
Thanks in advance.

Hi Prasanna,
Thank you for the timely reply.
I have already done according to the process given in the url which u have given me.
set and getFilterConfig methods are implemented in my AuthenticationFilter class. But still I could not be able deploy the application and I am not able to get the ServletContext object from Session. When I tried commenting the Filters and Listeners in my web.xml file then my .ear file was successfully deployed but I could not get the ServletContext from Session.
Below code is from my web.xml:
<filter>
<filter-name>HRSuthenticationFilter</filter-name>
<filter-class>com.peramb.hrs.servlet.AuthenticationFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>HRSAuthenticationFilter</filter-name>
<url-pattern>/jsp/*</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>HRSAuthenticationFilter</filter-name>
<servlet-name>action</servlet-name>
</filter-mapping>
<listener>
<listener-class>com.peramb.hrs.servlet.HRSContextListener</listener-class>
</listener>
When I comment the above code from web.xml it is deploying with out errors.. but I am not getting the servlet context, hence my application is not working.
When tried uncommenting the listerns part or Filters part or bothe, My application is deploying with an error on the console. I.e,
â€œ<Sep 22, 2005 12:20:36 PM IST> <Error> <Management> <Error deploying application
.\config\mydomain\applications\hrsgb.ear: java.lang.reflect.UndeclaredThrowable
Exception>â€.
And the error in Weblogic logs is below:
####<Sep 22, 2005 12:20:36 PM IST> <Info> <HTTP> <spacker> <myserver> <ExecuteThread: '0' for queue: '__weblogic_admin_html_queue'> <system> <> <101047> <[WebAppServletContext(6387482,hrsgb,/hrsgb)] registering JSPServlet with initArgs '[JspConfig: verbose=true,packagePrefix=jsp_servlet,-compiler=javac,compileFlags=,workingDir=E:\bea\wlserver6.1\config\mydomain\applications\.wlnotdelete\wlap36546\WEB-INF\_tmp_war_mydomain_myserver_hrsgb,pageCheckSeconds=1,superclass=weblogic.servlet.jsp.JspBase,keepgenerated=false,precompileContinue=false,compilerSupportsEncoding=true,encoding=null,defaultfilename=index.jsp,compilerclass=null,noTryBlocks=false]'>
####<Sep 22, 2005 12:20:36 PM IST> <Debug> <HTTP> < spacker > <myserver> <ExecuteThread: '0' for queue: '__weblogic_admin_html_queue'> <system> <> <101158> <Exception thrown while loading hrsgb: java.lang.SecurityException: sealing violation>
java.lang.SecurityException: sealing violation
at java.net.URLClassLoader.defineClass(URLClassLoader.java:229)
at java.net.URLClassLoader.access$100(URLClassLoader.java:51)
at java.net.URLClassLoader$1.run(URLClassLoader.java:190)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:183)
at java.lang.ClassLoader.loadClass(ClassLoader.java:294)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:281)
at java.lang.ClassLoader.loadClass(ClassLoader.java:250)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:310)
at weblogic.servlet.internal.WebAppServletContext.registerEventListener(WebAppServletContext.java:2031)
at weblogic.servlet.internal.WebAppServletContext.initFromDescriptors(WebAppServletContext.java:1471)
at weblogic.servlet.internal.WebAppServletContext.init(WebAppServletContext.java:943)
at weblogic.servlet.internal.WebAppServletContext.<init>(WebAppServletContext.java:878)
at weblogic.servlet.internal.HttpServer.loadWebApp(HttpServer.java:515)
at weblogic.j2ee.WebAppComponent.deploy(WebAppComponent.java:77)
at weblogic.j2ee.Application.addComponent(Application.java:176)
at weblogic.j2ee.J2EEService.addDeployment(J2EEService.java:117)
at weblogic.management.mbeans.custom.DeploymentTarget.addDeployment(DeploymentTarget.java:364)
at weblogic.management.mbeans.custom.DeploymentTarget.addDeployment(DeploymentTarget.java:150)
at weblogic.management.mbeans.custom.WebServer.addWebDeployment(WebServer.java:76)
at java.lang.reflect.Method.invoke(Native Method)
at weblogic.management.internal.DynamicMBeanImpl.invokeLocally(DynamicMBeanImpl.java:636)
at weblogic.management.internal.DynamicMBeanImpl.invoke(DynamicMBeanImpl.java:621)
at weblogic.management.internal.ConfigurationMBeanImpl.invoke(ConfigurationMBeanImpl.java:374)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1557)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1525)
at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:468)
at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:209)
at $Proxy37.addWebDeployment(Unknown Source)
at weblogic.management.configuration.WebServerMBean_CachingStub.addWebDeployment(WebServerMBean_CachingStub.java:1337)
at weblogic.management.mbeans.custom.DeploymentTarget.addDeployment(DeploymentTarget.java:350)
at weblogic.management.mbeans.custom.DeploymentTarget.addDeployment(DeploymentTarget.java:150)
at java.lang.reflect.Method.invoke(Native Method)
at weblogic.management.internal.DynamicMBeanImpl.invokeLocally(DynamicMBeanImpl.java:636)
at weblogic.management.internal.DynamicMBeanImpl.invoke(DynamicMBeanImpl.java:621)
at weblogic.management.internal.ConfigurationMBeanImpl.invoke(ConfigurationMBeanImpl.java:374)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1557)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1525)
at weblogic.management.internal.ConfigurationMBeanImpl.updateConfigMBeans(ConfigurationMBeanImpl.java:507)
at weblogic.management.internal.ConfigurationMBeanImpl.invoke(ConfigurationMBeanImpl.java:376)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1557)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1525)
at weblogic.management.internal.DynamicMBeanImpl.addDeployment(DynamicMBeanImpl.java:997)
at weblogic.management.internal.DynamicMBeanImpl.addDeployment(DynamicMBeanImpl.java:984)
at weblogic.management.internal.DynamicMBeanImpl.add(DynamicMBeanImpl.java:969)
at weblogic.management.internal.DynamicMBeanImpl.invokeLocally(DynamicMBeanImpl.java:648)
at weblogic.management.internal.DynamicMBeanImpl.invoke(DynamicMBeanImpl.java:621)
at weblogic.management.internal.ConfigurationMBeanImpl.invoke(ConfigurationMBeanImpl.java:374)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1557)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1525)
at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:468)
at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:209)
at $Proxy88.addTarget(Unknown Source)
at weblogic.management.mbeans.custom.ApplicationManager.autoDeploy(ApplicationManager.java:930)
at weblogic.management.mbeans.custom.ApplicationManager.addApplication(ApplicationManager.java:1039)
at weblogic.management.mbeans.custom.ApplicationManager.addApplication(ApplicationManager.java:954)
at weblogic.management.mbeans.custom.ApplicationManager.poll(ApplicationManager.java:851)
at weblogic.management.mbeans.custom.ApplicationManager.poll(ApplicationManager.java:781)
at weblogic.management.mbeans.custom.ApplicationManager.update(ApplicationManager.java:210)
at java.lang.reflect.Method.invoke(Native Method)
at weblogic.management.internal.DynamicMBeanImpl.invokeLocally(DynamicMBeanImpl.java:636)
at weblogic.management.internal.DynamicMBeanImpl.invoke(DynamicMBeanImpl.java:621)
at weblogic.management.internal.ConfigurationMBeanImpl.invoke(ConfigurationMBeanImpl.java:374)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1557)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1525)
at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:468)
at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:209)
at $Proxy5.update(Unknown Source)
at weblogic.management.console.webapp._domain.__upload_app._jspService(__upload_app.java:150)
at weblogic.servlet.jsp.JspBase.service(JspBase.java:27)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:262)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:198)
at weblogic.servlet.internal.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:284)
at weblogic.servlet.jsp.PageContextImpl.forward(PageContextImpl.java:119)
at weblogic.management.console.actions.ForwardAction.perform(ForwardAction.java:35)
at weblogic.management.console.actions.internal.ActionServlet.doAction(ActionServlet.java:171)
at weblogic.management.console.actions.internal.ActionServlet.doPost(ActionServlet.java:85)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:616)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:262)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:198)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:2678)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2412)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:140)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:121)
####<Sep 22, 2005 12:20:36 PM IST> <Error> <J2EE> < spacker> <myserver> <ExecuteThread: '0' for queue: '__weblogic_admin_html_queue'> <system> <> <160001> <Error deploying application hrsgb: Could not load hrsgb>
####<Sep 22, 2005 12:20:36 PM IST> <Error> <Management> < spacker> <myserver> <ExecuteThread: '0' for queue: '__weblogic_admin_html_queue'> <system> <> <141042> <Error deploying application .\config\mydomain\applications\hrsgb.ear: java.lang.reflect.UndeclaredThrowableException>
I could not trace the problem. Please help me with some solution for the above problem

How low can mac mini storage capacity go before it affects performance?

I have 15 GB left on my hard drive, how low can it go before it affects performance and I welcome any recommendations on how I can best expand storage space.
Usage: I use my mac for word and excel docs, but I store a number of images and graphic files, but I don't use any designer software.
Thanks,
Sq1mac

Welcome to Apple Discussions!
There's no one answer to the question of how much free space you really need to keep on your drive before performance and system stability begins to suffer, but with 15Gb left at the present, you will only be reaching that point if you are doing things like burning disk images (because macOS grabs drive space to store the image) or syncing with MobileMe.
In your situation I'd be careful not to go below 10Gb free.
Expanding storage space is very easy. Buy an external drive with either USB2.0 or Firewire interface (firewire is better but more expensive) and connect it to your system. If the drive isn't set up for a MAc, it can easily be partitioned and formatted using Disk Utility on the Mac, and you are then ready to use whatever capacity the external has - including moving any or all your files, music, photos etc to the external if you wish or need to. Just about any external, even models which appear to be for PC/Windows use only, will work perfectly well on a Mac - you don't need a 'Mac compatible' drive.

Cool'n'Quiet affecting performance?

Hello,
I noted something in my K9A2 Platinum and AMD Phenom 9950.
First of all I had it oced to 2.7 (x13.5) and Cool'n'Quiet enabled.
Well, due to a bug in Everest 5.02 sensor driver, I can't read correctly the CPU clock because this program show even speed like 700 MHz when I'm doing heavy task. As I thought it was impossible, I ran CPU-Z and this showed the correct values (1300 MHz when idle and 2700 when doing heavy tasks).
The issue is the following: Today I was converting an .avi video to DVD using a program that is optimized to use only two cores. The strange thing I noted is that processor was at 1300 MHz and only few times it changed to 2700 MHz. However voltage was at 1.3 all the time until conversion finished. Of course that if I disable CnQ or I choose another energy plan, speed is 2700 even when idle.
This program (ConvertxtoDVD) used about 50% of my processor.
Does CnQ affect performance? I thought that a conversion like that is a heavy task and it can benefit from 2700 MHz instead 1300 MHz, or CnQ is smart enough to know when an app. benefit or not from a higher speed?
Thanks!
I want to say than one of the better thing of MSI is its forum

Thanks for the suggestion.
Based on the results I can confirm that CnQ affect performance, quite disappointing. I don't know the difference between the CnQ of Athlon 64 X2 vs. Phenom, but in Athlon the processor change speed to its maximum immediately when I started doing heavy tasks instead of Phenom changing its speed to max only when 4 cores are being used and only some times when using less than 4 cores.
Here're results:
With CnQ ENABLED:
CPU Score   3347
CPU1 - Red Valley   1,160 FPS      CPU Tests
CPU2 - Red Valley   1,545 FPS      CPU Tests
With CnQ DISABLED:
CPU Score   3622
CPU1 - Red Valley   1,209 FPS      CPU Tests
CPU2 - Red Valley   1,737 FPS      CPU Tests
What do you think? Is a mobo, CPU problem or a performance hit like this is normal?
Quote from: Aramus8 on 14-July-09, 05:55:06
On some programs you will get a performance hit with Cool & Quiet enabled. Run 3DMark06 with it on and then with it off and you will see the performance hit. Most programs you will never notice.

Servlet filters work with OC4J 9.0.2, but not JDeveloper 9.0.2

I spent a day or so last week building a servlet filter and testing it in OC4J 9.0.2. It works fine. I didn't bother loading it into JDeveloper because there weren't any complicated debugging issues.
I just tried loading it into JDeveloper 9.0.2 this morning, and I discovered that even though OC4J 9.0.2 has no problem with servlet filters, apparently JDeveloper 9.0.2 does. It complains about validation of the "web.xml", saying that "filter" is not a valid element of "web-app". I was specifying the 2.3 dtd.
Is this a problem that I can easily work around in JDeveloper 9.0.2?
If I load the JDeveloper 9.0.3 developer preview, can I get it to use 9.0.2 for its embedded OC4J, and not produce any new problems?

For JDev 9.0.2, this issue is documented in the release notes at
http://otn.oracle.com/products/jdev/htdocs/readme_902.html#vmoption

JSF page goes blank when using with servlet filters...

Hi there,
I have a JSF page, which shows up fine (in both IE and Firefox) in normal scenarios.
But as soon as I apply servlet filters onto the faces extension, I get into trouble. So after setting up the filters, when I load the same page(s) in each of the browsers, the filters run fine in the background, but the page comes up blank (in both IE and FF).
Happening only with JSF / Faces pages.
Once I removed the filter mapping, the page loads up just fine.
Would appreciate any feedback on this. TIA!

More info on the original post...
Platforms:
Tomcat 5.5.15
JSF/Faces - Sun RI 1.2
Servlet Spec: 2.4
Portion of the Web.xml code (after applying the filters onto the faces components):
   <listener>
      <listener-class>
         com.sun.faces.config.ConfigureListener
      </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-mapping>
      <servlet-name>Faces Servlet</servlet-name>
      <url-pattern>*.faces</url-pattern>
   </servlet-mapping>
   <filter>
      <filter-name>PreProcessFilter</filter-name>
      <filter-class>.....view.util.PreProcessFilter</filter-class>
   </filter>
   <filter-mapping>
      <filter-name>PreProcessFilter</filter-name>
      <url-pattern>*.html</url-pattern>
   </filter-mapping>
   <filter-mapping>
      <filter-name>PreProcessFilter</filter-name>
      <url-pattern>*.jsp</url-pattern>
   </filter-mapping>
   <filter-mapping>
      <filter-name>PreProcessFilter</filter-name>
      <url-pattern>*.faces</url-pattern>
   </filter-mapping> Thanks for your time!

How will os 10.9 perform on a March 2009 MAC MINI 2.0/1X1G/120/SD/AP/BT-USAMB463LL/A

How will os 10.9 perform on a March 2009 MAC MINI 2.0/1X1G/120/SD/AP/BT-USAMB463LL/A?

It fits the specs, if it's actually an early 2009
http://www.apple.com/osx/specs/
Mac mini (Early 2009 or newer
If not you'll get a message that you can download it.
Although 2GB RAM is the stated minimum 4GB is more realistic. I'd add more RAM.

Does daisy-chaining a Belkin Mac-compatible hub affect performance?

I've had a 7-port Belkin hub plugged into my 13" Macbook and before that a 15" Powerbook for several years and have been pretty satisfied with it. I'd like to get a new one and connect it to the original (or vice-versa). Does anyone know if doing that would affect performance of any kind? (Upload times, wireless mouse interference, etc.?) Belkin doesn't seem to have anyone who knows much--the rep I talked to didn't even know Belkin made a hub that works with Mac.
Thanks for any information anyone has.

That makes sense. My old hub is 2.0, so it should work with the new one I want, which is also 2.0.
I don't know how much power I might ever be using at one time. have a wired keyboard and wireless or USB mice, and at times I probably download something into my printer buffer while at the same time backing up to an external hard drive or flash stick. But I don't think I'd ever be doing more than that, and the present 7-port hub seems to have no problem handling jobs requiring 4 ports at once.
I really just wanted the second hub because the present one is at the back of the desk behind the dictionary (cord is too short to reach the front!), and I'm tired of trying to insert devices into the USB ports without knocking the dictionary off its stand. I figured that plugging a second 7-port hub into the first one would allow me to have a hub at the front of the desk and give me a few extra ports as a bonus. If you have a better idea, I'd be happy to hear it! Meanwhile, thanks so much for the information, and the fast response.

How will mountain lion affect my office for mac 201111

How will mountain Lion affect my office for Mac 2011

I have been using Office for Mac 2011 for almost a year now and the issue started immediately after doing the upgrade.
When I start Outlook I can see that it takes 1 minute plus to set up the identity.
When it finally runs it is very slow and no fun to use. It seems that Outlook is using very few resources when I look at the activity monitor.
Overall it seems that my IMac has become slower than before upgrading to 10.8.
I do not have support with MSFT anymore and I do hope that somebody does report this issue to MSFT.
To me it seems to be very clear a result of the upgrade.
Hope that helps.

Using servlet filters- to read the rsponse

Hi ,
In my web application i am displaying the final result as an xml in a jsp.Now what ever I am displaying to the user i want to get that as a string and store it in a database.
For this i think i have to get that from the response object, i just looking at the servlet filters , but i am not sure using the servlet filters is a good option or not.
And i am really not sure exactly how to use the filters.
Please somene help me with this , is there a way for this,Please let me know if you don't understand what i am trying to do, so that i explain in little more detail.

Not exact but close. Describes a filter that caches the response to disc:
http://www.onjava.com/pub/a/onjava/2003/11/19/filters.html?page=3

I recently bought a ipad sleeve that has a magnetic fastener. Will the magnetism affect my device? As there as rumours for and against.

I recently bought a Ipad sleeve/cover that has a magnetic fastener.
Will the magnetism affect my device in any way,? as I have heard rumours both for and against.

These two threads have info that will give you advice:
https://discussions.apple.com/message/20380404#20380404,
https://discussions.apple.com/message/20238126#20238126.
I hope this helps.

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