Perfomance issue - back buffer

I`m having trouble with the back buffer issue that has been fixed in Java 1.6. I`m still using Java 1.5. Because it`s a large system it`s not easy to upgrade over night.
Part of the system is a lightweight machine with a 400Mhz VIA Eden and 256 MB memory. During startup the machine has a lot of trouble with the back buffer issue, and it lasts for about 10 min and then the machine runs smoothly for the rest of the period. The GUI is still responsive during startup if you know were to push, but it`s not usable because of the gray rectangles. Is there any way that I can optimize the JVM faster, so it starts running more smoothly sooner? I`m already using -Xincgc. This is a real-time system, so performance is really important
If there is anyone that know any tips or tricks regarding this issue I would be happy to hear them

That`s not possible because this machine is the only one I available. It`s decided by the company that this is the machine we are using for all our systems as remote control. It takes over a half year to classify a new machine so we can use.
But it`s not a problem that the machine is to weak, it`s been running for over an hour now and the GUI is very responsive. The problem is the first 10 minutes after startup, before the JVM optimizes.
By the way the machine is running java 1.5.11 on Linux. This is suppose to be a "quick fix" before we have the resources to upgrade to Java 1.6 and the back buffer issue is fixed

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Ajax4JSF Perfomance Issues

Me & my team have used Ajax4JSF extensively in our application very recently we have been observing perfomance problems.
Here is the situation
We have following dropdown defined with ajax4jsf event onchange
<h:panelGrid columns="3" styleClass="detail" columnClasses="label">
                 <h:outputText value="Manufacturer" />
                 <h:selectOneMenu id="manufList" value="#{manufacturerBean.selectedManufacturer}" >
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Any pointers/suggestions will be highly appreciated
Regards
Bansi

Me & my team have used Ajax4JSF extensively in our application very recently we have been observing perfomance problems.
Here is the situation
We have following dropdown defined with ajax4jsf event onchange
<h:panelGrid columns="3" styleClass="detail" columnClasses="label">
                 <h:outputText value="Manufacturer" />
                 <h:selectOneMenu id="manufList" value="#{manufacturerBean.selectedManufacturer}" >
                   <f:selectItem itemLabel="New" itemValue="New" />
              <f:selectItems value="#{manufacturerBean.manufacturerList}" />
              <a4j:support action="#{manufacturerBean.loadManufacturerDetails}" event="onchange" reRender="manufName,manufDescription,manufSource,btnSave,btnDelete" />
           </h:selectOneMenu>
            </h:panelGrid> The perfomance issue is whenever we pick a different value from the dropdown list Ajax4JSF onchange event is fired & the action method "loadManufacturerDetails" is invoked in the backing bean. This is perfect & expected behaviour. But prior to invoking onchange action method it invokes f:selectItems value binding method i.e. getManufacturerList in the backing bean which leads to perfomance issues as it goes thru Spring & Hibernate and hits the database & fires the query to get the List of Manufacturers everytime onchange event occurs & we were very much suprised with the wait time to populates other fields in the form
Any pointers/suggestions will be highly appreciated
Regards
Bansi

Change pointer perfomance issue(bd22)

Hi,
we are using message type HRMD_A to transfer the employee change data using the program RBDMIDOC. we are checking two table BDCP n BDCPS, but because of large number of data we r facing a perfomance issue here. I read in one forum about transaction BD22 which deletes the change pointer from these tables, but is it safe to use? and also what is the obsolete change pointer?
Thanks in advance for ur inputs.

Hey,
It is advisable to reorganize change pointer tables at regular intervals for better performance of programs accessing the BDCP* tables.
BD22 is a standard report delivered by SAP and it is absolutely safe to run this report. It also has o test run option. You could always run the report in test mode to analyze the data the report had selected for deletion.
Obsolete change pointers are those which have been created up to the specified date and time. In BD22, if this checkbox is marked, obsolete change pointers will be reorganized regardless of whether they have yet been processed.
Processed change pointers are those which have been processed in the specified period (date and time). If this checkbox is marked, the processed change pointers are reorganized.
-Kiran
*Please mark useful answers

Perfomance Issue: FORALL - LIMIT

Hi,
Is LIMIT clause mandatory for FORALL DML Operations for Perfomance Issue?
I have searched in google, but i didn't get a correct answer.
Suresh.

Suresh Mohan wrote:
Hi,
Is LIMIT clause mandatory for FORALL DML Operations for Perfomance Issue?
I have searched in google, but i didn't get a correct answer.
Suresh.It's not even a syntactical option
http://download.oracle.com/docs/cd/E11882_01/appdev.112/e10472/forall_statement.htm#LNPLS01321

Perfomance issue between Sun-Fire-V445 & SUNW,T5240

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5.10 Generic_118833-33 sun4u sparc SUNW,Sun-Fire-V445
bash-3.00$ psrinfo
0 on-line since 01/10/2009 01:55:45
1 on-line since 01/10/2009 01:55:45
2 on-line since 01/10/2009 01:55:45
3 on-line since 01/10/2009 01:55:42
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load averages: 0.96, 1.11, 1.14; up 101+15:04:35 16:59:45
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CPU states: % idle, % user, % kernel, % iowait, % swap
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System Configuration: Sun Microsystems sun4u Sun Fire V445
System clock frequency: 199 MHZ
Memory size: 32GB
==================================== CPUs ====================================
E$ CPU CPU
CPU Freq Size Implementation Mask Status Location
0 1592 MHz 1MB SUNW,UltraSPARC-IIIi 3.4 on-line MB/C0/P0
1 1592 MHz 1MB SUNW,UltraSPARC-IIIi 3.4 on-line MB/C1/P0
2 1592 MHz 1MB SUNW,UltraSPARC-IIIi 3.4 on-line MB/C2/P0
3 1592 MHz 1MB SUNW,UltraSPARC-IIIi 3.4 on-line MB/C3/P0
================================= IO Devices =================================
System Configuration: Sun Microsystems sun4v T5240
Memory size: 130848 Megabytes
================================ Virtual CPUs ================================
CPU ID Frequency Implementation Status
0 1165 MHz SUNW,UltraSPARC-T2+ on-line
1 1165 MHz SUNW,UltraSPARC-T2+ on-line
2 1165 MHz SUNW,UltraSPARC-T2+ on-line
3 1165 MHz SUNW,UltraSPARC-T2+ on-line
4 1165 MHz SUNW,UltraSPARC-T2+ on-line
5 1165 MHz SUNW,UltraSPARC-T2+ on-line
6 1165 MHz SUNW,UltraSPARC-T2+ on-line
7 1165 MHz SUNW,UltraSPARC-T2+ on-line
8 1165 MHz SUNW,UltraSPARC-T2+ on-line
9 1165 MHz SUNW,UltraSPARC-T2+ on-line
10 1165 MHz SUNW,UltraSPARC-T2+ on-line
11 1165 MHz SUNW,UltraSPARC-T2+ on-line
12 1165 MHz SUNW,UltraSPARC-T2+ on-line
13 1165 MHz SUNW,UltraSPARC-T2+ on-line
14 1165 MHz SUNW,UltraSPARC-T2+ on-line
15 1165 MHz SUNW,UltraSPARC-T2+ on-line
16 1165 MHz SUNW,UltraSPARC-T2+ on-line
17 1165 MHz SUNW,UltraSPARC-T2+ on-line
18 1165 MHz SUNW,UltraSPARC-T2+ on-line
19 1165 MHz SUNW,UltraSPARC-T2+ on-line
20 1165 MHz SUNW,UltraSPARC-T2+ on-line
21 1165 MHz SUNW,UltraSPARC-T2+ on-line
22 1165 MHz SUNW,UltraSPARC-T2+ on-line
:

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we have a strange perfomance issue:
we have a single Windows 2003 Server for the XI Quality System and a Windows 2003 Server on production (both of them 32 bit).
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Hi,
It has been a while since the last time we heard from you, so I assume this issue is solved by now.
I will mark a reply as answer, please feel free to unmark it if it’s not helpful, and we will be happy to continuously support you.
Have a nice day!
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i have problem with Web Performance issue with Application server 10g
is their any parameter need to be adjust

Hi,
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Perfomance issue after update to 10.7.3

Hello everyone,
I have recently experienced major perfomance issues when it comes to graphical applications. I can't recall if it happened when 10.7.2 or 10.7.3 was released, but somewhere around then. And I can't determine if it was happening directly afterwards when the upgrade was done.
Watching a flash movie takes a lot of system resources and scrolling within the window the flash movie is barely possible. Before this hasn't been a problem at all. Playing a game, i.e Team Fortress 2, has gone from wonderful to non-playable. From having 60-80 fps to around 25-45 fps.
I am having a MBP 15.4 early 2011/8GB/2.0GHz. Running latest version of Lion 10.7.3
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Maybe it's Chrome. Maybe your update to 10.7.2 or 10.7.3 needs help. You could consider reinstalling Lion:
Reinstalling Lion Without Erasing the Drive
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
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Reinstall Lion: Select Reinstall Lion and click on the Continue button.
Note: You can also re-download the Lion installer by opening the App Store application. Hold down the OPTION key and click on the Purchases icon in the toolbar. You should now see an active Install button to the right of your Lion purchase entry. There are situations in which this will not work. For example, if you are already booted into the Lion you originally purchased with your Apple ID or if an instance of the Lion installer is located anywhere on your computer.

Time capsule issues backing up more than one MacBook Pro

Hi all,
i'm having an issue with a new 3Gb Time Capsule i've just bought and put online, I wonder if someone would be able to help please.
I am trying to back up 3 MacBooks, a 2011 macbook pro, a 2012 macbook pro and a 2012 Macbook Air, they are all running Mountain Lion.
My main macbook has worked fine and I have backed up the drive a few times without any real issue, however when I try and back up one of the other two onto the same Time Capsule, I get the error, "the backup disk image "/volumes/data/.sparsebundle" could not be accessed"
I've had a look around all the forums to see if I can see a potential problem and fix, however I can't find anywhere that says it works fine for the first backup but not for any other ones!?
The only other option I have seen is to completely remove the data backup and start again, but I don't really want to do that unless theres no other options.
Hope you can help, thanks in advance.
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You do not have to partition the TC.. indeed you cannot..
But the issue with Lion or ML losing the sparsebundle is now as common as dust in a drought.
Yes, it can do a backup then fail to do another.. and there is no reason for it other than poor networking on later OS.
Reboot the TC.. and maybe the whole network. Reminds you of that initial support question for another OS.. did you turn it off and on again...??
http://pondini.org/TM/Troubleshooting.html
Read C12 and C17.
Welcome to ML.

Sleep and Battery issues-- Back to Tiger?

(Half of this relates to a thread of mine called "Dead Battery?"-- I tried all the fixes proposed and it's still unclear if my battery is fine or dead.)
I'm having battery and sleep problems that started after installing Leopard and I'm wondering whether I should:
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I use SoundHound, had no such problem.
If my post has helped you, give it a LIKE

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Hi,
Experiencing this weird issue with this board - up to date drivers on BIOS, Realtek and everything else. The back output jack of the board has trouble with higher frequencies and will produce static / corrupted noise reproducing higher frequency sounds (e.g. the Windows speaker tests). The frontpanel jack is perfect and reproduces everything. My "work around" is currently to use the FP jack, but I would like to fix the backpanel (same speakers).
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I'm having issues backing up a new Mac with time machine and time capsule.

I've been trying to backup an extra macbook to the time capsule via time machine but the two sparsebundles (for two other Mac's) were taking up too much room. I deleted a heap of old backups from one of the sparsebundles to create enough room. The time capsule was still showing up as nearly full so I tried the method Pondini (God rest his soul) describes to "compact" the sparsebundle. That didn't work (I got this message in terminal):
hdiutil: compact failed - Function not implemented
I've had many other issues which required hard resetting the time capsule twice. And since then my wife's Macbook is having trouble backing up. I'm beginning to think I should maybe get an external HD and move all existing backups from the time capsule to the external HD. Do a factory reset on the time capsule and start from scratch. I guess my question is, does this sound like the best solution and if I move all the old backups to an external HD, will they be accessible.

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Then do an erase of the TC and start over.
TM is becoming less reliable with each new OS.. and so far Yosemite is proving the worst by a big margin.
Strongly recommend that it is time to use Carbon Copy Cloner or some other software.
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Speed Issue back Yet again ! BT HELP!

a few weeks back i had a issue with the speed of my line. It was down to a netowrk engineer working in the error.
My Speed returned back to the Good old speed after several days.
But today my internet went and now my speeds are down in the dumps again.
It seems to be BT in LCTOD is having more and more problems time after time after time i am getting sick of it.
Download speedachieved during the test was - 1585 Kbps
For your connection, the acceptable range of speeds is 600-7150 Kbps.
Additional Information:
Your DSL Connection Rate :5440 Kbps(DOWN-STREAM), 448 Kbps(UP-STREAM)
IP Profile for your line is - 4500 Kbps
Router Stats
Line state   Connected
Connection time   0 days, 04:23:54
Downstream   5,440 Kbps
Upstream   448 Kbps
ADSL Settings
VPI/VCI   0/38
Type   PPPoA
Modulation   G.992.1 Annex A
Latency type   Fast
Noise margin (Down/Up)   7.4 dB / 23.0 dB
Line attenuation (Down/Up)   48.1 dB / 27.5 dB
Output power (Down/Up)   8.3 dBm / 1.6 dBm
Loss of Framing (Local/Remote)   0 / 0
Loss of Signal (Local/Remote)   0 / 0
Loss of Power (Local/Remote)   0 / 0
FEC Errors (Down/Up)   0 / 3
CRC Errors (Down/Up)   516 / 2
HEC Errors (Down/Up)   9838 / 1
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New the internet disconnected over 4 hours ago and since then it has been sluggy, Its not only effecting my web surfing but also my game playing.
I checked my e-mails no sign of FUP or Even the 80GB warning nothing (80GB i haven't even got yet long way off).
I urge BT to solve this NOW!!!! this is going to be the very last time. I'll go back to the CEO's office if its not sorted and will tell them that i'll be leaving then prompty making my call to OFCOM and Watch dog this is getting to be joke.
I now laugh at BT adverts, We are the Worlds Leading Fast internet provider (SORRY BUT YOUR NOT!)
Please fix this problem.

Hi rogers1950,
I have checked a few things on your line this morning to see if there is anything obvious that could be slowing down your connection throughput speed.
The line hasn't been capped as you say and your exchange has hasn't been reported for having capacity issues, which is a fairly common factor in probems with slow throughput.
The stats that you have posted show the downstream speed and IP profile are all working well so at the moment the speed result looks purely the result of internet congestion. I note that you ran the test quite late in the evening, right in the middle of our peak times, so I would guess congestion was the cause.
Try and run a few more tests via www.speedtester.bt.com, if possible one before peaks times, 5pm-midnight, and one during so I can see a comparison.
Please post the results up
With a bit of luck last night was just a one off.
Cheers
Craig
BTCare Community Mod
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SRW2024P mixed speed perfomance issues

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Then I found that the bad performance in mixed operation can be fixed by enabling flow control on any single port (even a non-connected).
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I purchased 6 of these back in September, and if I could turn back the clock I wouldn't make the same mistake twice!
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System Center DPM 2012 R2 Issue backing up Exchange 2010

I was previously using System Center DPM 2010 to back up an Exchange 2010 server without any issues. we recently upgraded to DPM 2012 R2 and I followed all of the steps to install it properly on the Exchange Server. However, DPM cannot see the Exchange DB correctly and it is not allowing it run the cleanup (eseutil.exe) on the Exchange Server, leading to space issues. What do I need to do to resolve this issue?
This topic first appeared in the Spiceworks Community

Hi,
This is a documentation error and will get it addressed. DPM 2012 R2 RTM does still support page file VHD exclusion same as DPM 2012 SP1.
Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. Regards, Mike J. [MSFT]
This posting is provided "AS IS" with no warranties, and confers no rights.

Perfomance issue - back buffer

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