Slow performance during Apply Request Values Phase of JSF lifecycle

Dear all,
I found that my application is sucked at the Apply Request Values Phase of JSF lifecycle when I submit the page. (Totally spend 1 min to pass this phase)
In the application, there is around 300 input fields in the page. Who know how can I ehance the performace?
Thanks.

Thanks a lot for your help. Maybe I explain more about my current structure
I need to develop a input form for course instructor to input students' assignment / examination result (max 9 assignments and 1 examination).
so that I have below coding:
*1. bean to store marks of a student*
public class Mark {
private String studentID = "";
private String mark1 = "";
private String mark9 = "";
private String markExam = "";
//getter & setter of above properties
public void setMark1(String mark1) {
this.mark1 = mark1;
public String getMark1() {
return this.mark1;
*2. backing bean*
public class markHandler {
ArrayList marks = new ArrayList();
//getter & setter of above property
//method to retrieve list of student (this will be the action before go in mark input page)
public void getStudentList() {
//get student list from database
for(int i = 0 ; i < studentCount; i++){
//initial mark of student
Mark mark = new Mark();
mark.setStudentID(studentID);
mark.setMark1("");
mark.setMarkExam("");
//put into arraylist
marks.add(mark);
*3. mark input page*
<html>
<h:dataTable value="#{markHandler.marks}" var="e">
<column>
<h:output value="#{e.studentID}" />
</column>
<column>
<h:input id="mark1" value="#{e.mark1}" />
</column>
<column>
<h:input id="mark1" value="#{e.markExam}" />
</column>
</h:dataTable>
<h:commandButton action="#{markHandler.save} />
</html>
When I submit the page, It seems that there is a long time spent at the input field of datatable at Apply Request Values Phase. (I use Phase Listeners to test the time difference before & after phase)
Pls help. Thanks.
Edited by: Daniel_problem on Aug 15, 2008 10:34 AM
Edited by: Daniel_problem on Aug 15, 2008 10:36 AM

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Edited by: trout1234 on Aug 2, 2012 10:47 AM
Edited by: trout1234 on Aug 2, 2012 10:57 AM

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>>> Gingrasm<[email protected]> 11/16/2011 10:36 PM >>>
I am trying to migrate some 30,000 folders from an NSS volume on NW 6.5
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SP4.
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View this thread: http://forums.novell.com/showthread.php?t=448307

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Generally the system works fine. I handles 50.000 messages per day with no delays. But the monitoring performance is annoying. I need your expertise on that. 

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"Jouko Oksanen" <Jouko.Oksanen_re@move_efore.fi> wrote in message
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>>> Jim Koerner<[email protected]> 20.2.2013 19:57
>>> >>>
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"marklar23" wrote in message
news:[email protected]...
I encrypted my organization's laptops several weeks ago and did not
return them to users until after I could tell by device performance that
the bulk encrypting task had completed. I have two users that are
experiencing extremely slow performance on their systems. When the
users are typing anything like a Word document, upon each keystroke they
see the Windows 7 "circle" icon at the mouse cursor. This seems to come
and go several times over the week, and every few days we are getting a
request to resolve the issue but after restarting the behavior may not
act up anymore.
I found a TID suggesting to change
HKLM\SOFTWARE\Novell-FDE\Parameters\ThrottleEncryption to a lower level
like Idle or BelowNormal. Is there anything else that I should also
try? Thanks!
marklar23
marklar23's Profile: http://forums.novell.com/member.php?userid=5123
View this thread: http://forums.novell.com/showthread.php?t=464262

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=======
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We have been using Oracle/WLS since BEA used to market 'Tengah' servers. This is the worst we have seen as far as the qaulity of support staff goes. We first level support seems clueless. We filed this case and the support comes back tells us that IBM JDKs are not supported for WLS! Oh, we have been running WLS/AIX/IBM JVM combination only for 5+ years.

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Hint: /dev/random will deliver one new random number as soon as the pool has reached more than 64 entropy units.
So why does my box not generate more entropy noise?
Because only few drivers will fill the entropy pool, first of all keyboard and mouse. Sounds very useful on a server in a datacenter, isn’t it? Some block device and network drivers seem to do so as well, and I have read from guys on the net changing their network card and driver to enjoy this “feature”! But let’s stop ranting, /dev/random is simply made for high security randomness, and if it can’t make sure that randomness is as good as possible in this deterministic world, it stops. Intelligent people have created /dev/urandom for that, like “man 4 random” clearly states:
A read from the /dev/urandom device will not block waiting for more entropy. As a result, if there is not sufficient entropy in the entropy pool, the returned values are theoretically vulnerable to a cryptographic attack on the algorithms used by the driver. Knowledge of how to do this is not available in the current non-classified literature, but it is theoretically possible that such an attack may exist. If this is a concern in your application, use /dev/random instead.
Now let’s get back on our JDBC problem. Oracle JDBC 11g seems to use /dev/random by default, which causes usually no trouble on clients running with console access by a user, because his/her unpredictable :) actions will keep the entropy pool well-fed. But to make it usable on a headless server with a latently empty entropy pool, you should do several things, in descending security order (without warranty):
1. Involve an audio entroy daemon like AED to gather noise from your datacenter with an open microphone, maybe combine it with a webcam noise collector like VED. Other sources are talking about “Cryptographic Randomness from Air Turbulence in Disk devices“. :)
2. Use the Entropy Gathering Daemon to collect weaker entropy from randomness of userspace programs.
3. Talk your JDBC into using /dev/urandom instead:
-Djava.security.egd=file:///dev/urandom"

Slow performance after installation of new OS-X

I don't know if anyone else has been experiencing the same problem as me, but it seemed to occur after I installed the new OS-X.
My MacBook Pro has gone stremely slow and it seems to be related to MAIL. I thought that the standard MAIL program that comes with MAC was the problem, so I installed Postbox and that seemed to work for a while (1 day or 2) and then it was the same. It's not just email programs that are slow, but all programs.
Click and wait seconds (10, 20, 30 sec) just for a program to open. Moving between files is so slow. I feel like I'm using Windows again.
I'm no expert, but when I look at MEMORY usage, out of 4GB I'm using 3.8GB. My Virtual Memory is 4.76GB. See screen shot below.
I would apprecaite if anyone can help me resolve what the problem is.
Thanks
Richard Giuliano

First, back up all data immediately unless you already have a current backup. If you can't back up, stop here. Do not take any of the steps below.
Step 1
This diagnostic procedure will query the log for messages that may indicate a system issue. It changes nothing, and therefore will not, in itself, solve your problem.
If you have more than one user account, these instructions must be carried out as an administrator.
Triple-click anywhere in the line below on this page to select it:
syslog -k Sender kernel -k Message CReq 'GPU |hfs: Ru|I/O e|find tok|n Cause: -|NVDA\(|pagin|timed? ?o' | tail | awk '/:/{$4=""; print}' | open -ef
Copy the selected text to the Clipboard by pressing the key combination command-C.
Launch the Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
Paste into the Terminal window (command-V). I've tested these instructions only with the Safari web browser. If you use another browser, you may have to press the return key.
The command may take a noticeable amount of time to run. Wait for a new line ending in a dollar sign (“$”) to appear.
A TextEdit window will open with the output of the command. Normally the command will produce no output, and the window will be empty. If the TextEdit window (not the Terminal window) has anything in it, stop here and post it — the text, please, not a screenshot. The title of the TextEdit window doesn't matter, and you don't need to post that.
Step 2
There are a few other possible causes of generalized slow performance that you can rule out easily.
Disconnect all non-essential wired peripherals and remove aftermarket expansion cards, if any.
Reset the System Management Controller.
Run Software Update. If there's a firmware update, install it.
If you're booting from an aftermarket SSD, see whether there's a firmware update for it.
If you have a portable computer, check the cycle count of the battery. It may be due for replacement.
If you have many image or video files on the Desktop with preview icons, move them to another folder.
If applicable, uncheck all boxes in the iCloud preference pane. See whether there's any change.
Check your keychains in Keychain Access for excessively duplicated items.
Boot into Recovery mode, launch Disk Utility, and run Repair Disk.
If you have a MacBook Pro with dual graphics, disable automatic graphics switching in the Energy Saverpreference pane for better performance at the cost of shorter battery life.
Step 3
When you notice the problem, launch the Activity Monitor application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Activity Monitor in the icon grid.
Select the CPU tab of the Activity Monitor window.
Select All Processes from the View menu or the menu in the toolbar, if not already selected.
Click the heading of the % CPU column in the process table to sort the entries by CPU usage. You may have to click it twice to get the highest value at the top. What is it, and what is the process? Also post the values for User, System, and Idle at the bottom of the window.
Select the Memory tab. What value is shown in the bottom part of the window for Swap used?
Next, select the Disk tab. Post the approximate values shown for Reads in/sec and Writes out/sec (not Reads in andWrites out.)
Step 4
If you have more than one user account, you must be logged in as an administrator to carry out this step.
Launch the Console application in the same way you launched Activity Monitor. Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left. If you don't see that menu, select
View ▹ Show Log List
from the menu bar.
Select the 50 or so most recent entries in the log. Copy them to the Clipboard by pressing the key combinationcommand-C. Paste into a reply to this message (command-V). You're looking for entries at the end of the log, not at the beginning.
When posting a log extract, be selective. Don't post more than is requested.
Please do not indiscriminately dump thousands of lines from the log into this discussion.
Important: Some personal information, such as your name, may appear in the log. Anonymize before posting. That should be easy to do if your extract is not too long.

Recent upgrade, slow performance, shown in Activity Monitor

I have been experiencing gradually slowing performance in the last couple of weeks, the only thing I have done a couple months ago is upgrade to Leopard, though the timing does not indicate it's this precisely.
It is most noticeable in Safari and PS CS3 and Bridge, the programs I mostly use.
In Activity Monitor, when this occurs there are a couple of offending processes, and they are always hanging when the slowing phases happen. They say, in red:
UserEventAgent (not responding)
and/or
coreaudioid (not responding)
Does anyone know what this might be? How I can correct whatever this is?
thx

That thread indicates the cause points to various plug-ins primarily from Pro Tools. I do have PT installed, and I have now uninstalled it. We'll see if things improve. Otherwise I don't know how to isolate the cause, for example another random plug-in, so the thread was of limited value. Good start though, thanks.
Pro Tools LE 7.x is apparently not yet compatible with Leopard, joy.

Slow performance disk activity

My mac has slowed to almost a stop.
I hear lots of disk activity and when reviewing activity monitor I see lots of disk activity.
About 100 reads and writes a second
Any ideas of how to find out what is happening?

First, back up all data immediately, as your boot drive might be failing.
There are a few other possible causes of generalized slow performance that you can rule out easily.
If you have many image or video files on the Desktop with preview icons, move them to another folder.
If applicable, uncheck all boxes in the iCloud preference pane.
Disconnect all non-essential wired peripherals and remove aftermarket expansion cards, if any.
Otherwise, take the steps below when you notice the slowdown.
Step 1
Launch the Activity Monitor application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Activity Monitor in the icon grid.
Select the CPU tab of the Activity Monitor window.
Select All Processes from the menu in the toolbar, if not already selected.
Click the heading of the % CPU column in the process table to sort the entries by CPU usage. You may have to click it twice to get the highest value at the top. What is it, and what is the process? Also post the values for % User, % System, and % Idle at the bottom of the window.
Select the System Memory tab. What values are shown in the bottom part of the window for Page outs and Swap used?
Step 2
If you have more than one user account, you must be logged in as an administrator to carry out this step.
Launch the Console application in the same way you launched Activity Monitor. Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left.
Select the 50 or so most recent entries in the log. Copy them to the Clipboard (command-C). Paste into a reply to this message (command-V). You're looking for entries at the end of the log, not at the beginning.
When posting a log extract, be selective. Don't post more than is requested.
Please do not indiscriminately dump thousands of lines from the log into this discussion.
Important: Some personal information, such as your name, may appear in the log. Anonymize before posting. That should be easy to do if your extract is not too long.

Slow performance on a iMac 27" (maybe originated by the HDD)

Hello,
Well, I've had my iMac for 10 months now, but have never really paid attention to its performance since it was my first Mac and I was upgrading from a quite old computer, so it obviously proved to be a far superior machine.
However, I noticed the problem when I started to be more critical with my machine's performance (this triggered by the fact that I bought, some months after, a MacBook Air which flies beyond time and space). Curious about this, I requested a friend to do a benchmark test with Xbench resulting in his machine (another iMac 27” with comparable specs) clearly outperforming mine. Even the Air, with its slower processor and smaller RAM, has a relatively close performance.
Additionally, I have started to notice how the computer takes a long time to start-up and, after the desktop is “layed out”, it takes a lot of time before the machine becomes “responsive” (I usually try to start Mail and Google Chrome as soon as the pointer pops in!) with the final result that I have to wait in company of the beach ball for quite some seconds (half a minute) and even after the application had started, I can still hear the HDD working it as if there would be no tomorrow! And then, it is slooooow. Funnily enough, “tougher” applications like Photoshop or Illustrator don’t seem to have as many problems, relatively speaking.
A little bit on the background info: I have two partitions: one for Bootcamp (since I was migrating from Windows, I had some software that I wanted to use there: Matlab and Office, basically, and then some smaller Windows-only programs).
Derived from the benchmark test, I think I might have isolated the problem to the HDD (not sure though!).
SO THE QUESTIONS ARE:
1. How can I verify that the slow performance is due to the HDD being defective/badly configured/etc.?
2. Has the Windows Bootcamp Partition any effect on my machine’s performance under MacOS? (I would assume not, but you never know!). I have more than 1.3 TB free space left
3. What kind of corrective measures should I take?
4. Any other type of advice will be warmly welcome: I will try to do some PRAM and SMC resets but I am not counting on it. I had also ran the disk utilities and there were no permission errors (not so sure what this means, but I’ve read that it is supposed to be good news.)
5. Any extra info you might need, lemme know!
Greetz,
Víctor.
PS: Sorry for the loooong post. I tried to be thorough!

1. How can I verify that the slow performance is due to the HDD being defective/badly configured/etc.?
Run Apple Hardware Test: http://support.apple.com/kb/HT1509
2. Has the Windows Bootcamp Partition any effect on my machine’s performance under MacOS? (I would assume not, but you never know!). I have more than 1.3 TB free space left
Probably not but 1.3TB of free space left on the total HD is not enough for OS X, OS X needs a minimum of 10-15% free space! If you mean 1.3TB of Windows space I'd recommend posting that question in the Boot Camp forum.
3. What kind of corrective measures should I take?
If the drive is failing per the AHT then it's covered by warranty and will need to be replaced. Remember back up!!!!!!!!!!
4. Any other type of advice will be warmly welcome: I will try to do some PRAM and SMC resets but I am not counting on it. I had also ran the disk utilities and there were no permission errors (not so sure what this means, but I’ve read that it is supposed to be good news.)
Can't hurt, make sure you read the instructions carefully and execute the tests exactly as they are described for Intel based iMacs.
5. Any extra info you might need, lemme know!
If you no longer have a need for Windows on your iMac I'd recommend removing that partition using Boot Camp Assistant. That may correct your problems.
I would also recommend checking if System Preferences - Startup Disk and see if your internal HD is highlighted as the Startup Disk.
In addition I would recommend checking your Login Items (System Preferences - Accounts - Login Items) and delete any applications you don't need launching at Login.

Slow performance during Apply Request Values Phase of JSF lifecycle

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