CPU Usage Maxing Out using Explorer

Ola guys,
Ok, here's the prob.
When I go to rename a video file XP states that the file is being used by another program (which it's not). This is followed by a system slowdown in which explorer is utilizing the CPU to 95-100%. This requires me to reboot.
Anyone know what causes this. I remember seeing something about this here a long time ago. Could this be an IDE driver problem (I'm using XPSP1 IDE drivers as they've worked the best so far).
Thanks

Hi,
Had a quick read through this thread on first posting, and now I'm having problems, since dowloading a large 500MB AVI file. For some reason, my system has slowed right down and explorer is using up most of my CPUs time.
I checked the link in a previous post for solving this problem - by deleting a registry key. A-Ha - I thought, I'll soon have this sorted! Wrong ?( - this registry key does not exist in my registry (believe me I've looked - and then some).
As explorer is using all my CPU time I can't play the AVI in media player (or most other players for that matter.) As soon as I access the AVI (using players or editing software) I'm knackered - until a reboot! I can play the file using AVI preview but as you can imagine this is not ideal.
I know I shouldn't perpetuate this thread, as it's slightly off topic - but I reasoned that if it's already here, then there's no harm.
If anyone knows of a fix for this - I'd greatly appreciate the info.
Thanks in advance :D
Axel :D

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2040637 wrote:
It says process 44. What do I do next to correct the problem.
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'''texto en negrita'''

Ive downgraded from FF4 to 3.6 at this point. The CPU usage is out of control on OS X.

Cpu usage on app tier always too high(100% used)

EBS suite version:12.1.3
app tier CPU usage always 100% used,DB tier CPU only about 30% used
env:one-node app tier and one-node db tier
Processes in Instance:
--------------------------------------------------------------+---------
ias-component | process-type | pid | status
--------------------------------------------------------------+---------
OC4JGroup:default_group | OC4J:oafm | 26162 | Alive
OC4JGroup:default_group | OC4J:forms | 26014 | Alive
OC4JGroup:default_group | OC4J:forms | 26013 | Alive
OC4JGroup:default_group | OC4J:forms | 26015 | Alive
OC4JGroup:default_group | OC4J:oacore | 25803 | Alive
OC4JGroup:default_group | OC4J:oacore | 25804 | Alive
OC4JGroup:default_group | OC4J:oacore | 25802 | Alive
HTTP_Server | HTTP_Server | 25742 | Alive
CPU usage details:
Tasks: 521 total, 22 running, 498 sleeping, 0 stopped, 1 zombie
Cpu(s): 83.9%us, 13.6%sy, 0.0%ni, 0.7%id, 0.0%wa, 0.0%hi, 1.7%si, 0.0%st
Mem: 32665600k total, 32178908k used, 486692k free, 546536k buffers
Swap: 10288440k total, 108k used, 10288332k free, 19519600k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1966 mchen 15 0 694m 64m 27m S 78.3 0.2 0:13.04 rwrun
25802 mchen 15 0 1595m 1.4g 7456 S 75.5 4.5 14:04.82 java
25804 mchen 17 0 1531m 1.3g 7452 S 58.4 4.3 15:09.88 java
25803 mchen 18 0 1460m 1.3g 7452 S 54.3 4.0 13:49.11 java
6128 mchen 15 0 683m 48m 23m S 18.6 0.2 0:01.00 rwrun
7416 mchen 15 0 94336 46m 15m S 13.3 0.1 0:00.76 frmweb
5554 mchen 15 0 97360 49m 15m S 10.4 0.2 0:01.29 frmweb
26015 mchen 20 0 1357m 457m 7316 S 10.4 1.4 2:13.15 java
7244 mchen 15 0 94340 46m 15m S 10.1 0.1 0:00.72 frmweb
7428 mchen 15 0 92776 44m 15m S 9.8 0.1 0:00.55 frmweb
6843 mchen 15 0 92800 44m 15m S 9.2 0.1 0:00.64 frmweb
7763 mchen 15 0 74524 28m 13m S 8.2 0.1 0:00.32 frmweb
5686 mchen 15 0 98648 51m 15m S 7.9 0.2 0:01.28 frmweb
6162 mchen 15 0 97876 50m 15m S 7.9 0.2 0:00.99 frmweb
5611 mchen 15 0 98648 51m 15m S 7.6 0.2 0:01.32 frmweb
6461 mchen 15 0 94924 47m 15m S 7.3 0.1 0:00.97 frmweb
3809 mchen 15 0 691m 60m 27m S 6.9 0.2 0:08.97 rwrun
26014 mchen 19 0 1340m 442m 7316 S 6.6 1.4 1:29.05 java
7283 mchen 15 0 94340 46m 15m S 6.3 0.1 0:00.68 frmweb
5126 mchen 15 0 85392 39m 14m R 5.7 0.1 0:01.04 frmweb
26013 mchen 16 0 1332m 449m 7308 S 5.7 1.4 1:20.39 java
6544 mchen 15 0 97884 50m 15m S 5.4 0.2 0:01.10 frmweb
7140 mchen 15 0 94336 46m 15m S 5.4 0.1 0:00.62 frmweb
4366 mchen 15 0 690m 60m 27m S 4.7 0.2 0:07.76 rwrun
6314 mchen 15 0 688m 56m 28m S 4.7 0.2 0:01.32 rwrun
6368 mchen 15 0 690m 58m 28m S 4.7 0.2 0:01.25 rwrun
7793 mchen 16 0 70100 22m 11m R 4.7 0.1 0:00.15 frmweb
3734 mchen 15 0 98.1m 51m 15m S 4.4 0.2 0:02.01 frmweb
6048 mchen 15 0 96364 48m 15m R 4.4 0.2 0:00.75 frmweb
6205 mchen 15 0 80728 33m 13m S 4.1 0.1 0:00.43 frmweb
6375 mchen 15 0 87840 41m 14m S 4.1 0.1 0:00.79 frmweb
5592 mchen 15 0 98404 50m 15m S 3.8 0.2 0:01.17 frmweb
5784 mchen 15 0 94924 47m 15m S 3.8 0.1 0:00.99 frmweb
7365 mchen 15 0 74124 28m 13m S 3.8 0.1 0:00.25 frmweb
4830 mchen 16 0 107m 61m 16m R 3.5 0.2 0:01.90 frmweb
5304 mchen 15 0 99244 51m 15m S 3.5 0.2 0:01.26 frmweb
5754 mchen 15 0 82072 36m 14m S 3.5 0.1 0:00.52 frmweb
4447 mchen 15 0 692m 61m 27m S 3.2 0.2 0:08.69 rwrun
5816 mchen 15 0 99056 51m 15m S 3.2 0.2 0:01.19 frmweb
6076 mchen 15 0 94340 46m 15m S 3.2 0.1 0:00.78 frmweb
7658 mchen 15 0 74124 28m 13m S 3.2 0.1 0:00.26 frmweb
7801 mchen 15 0 57524 9516 6296 S 3.2 0.0 0:00.10 frmweb
7830 mchen 18 0 57524 9524 6300 S 3.2 0.0 0:00.10 frmweb
4251 mchen 15 0 98.1m 51m 15m S 2.5 0.2 0:01.60 frmweb
7231 mchen 15 0 74264 28m 13m S 2.5 0.1 0:00.24 frmweb
7341 mchen 15 0 92804 44m 15m S 2.5 0.1 0:00.71 frmweb
7790 mchen 15 0 57524 9524 6300 S 2.5 0.0 0:00.08 frmweb
7867 mchen 17 0 57524 9464 6240 S 2.5 0.0 0:00.08 frmweb
6547 mchen 15 0 81388 35m 14m S 2.2 0.1 0:00.41 frmweb
6900 mchen 15 0 89136 42m 14m S 2.2 0.1 0:00.61 frmweb
7308 mchen 15 0 74092 28m 13m S 2.2 0.1 0:00.26 frmweb
7454 mchen 15 0 71324 25m 12m S 2.2 0.1 0:00.15 frmweb
7679 mchen 15 0 74128 28m 13m S 2.2 0.1 0:00.20 frmweb
5681 mchen 15 0 98780 51m 15m R 1.9 0.2 0:01.02 frmweb
7040 mchen 15 0 74572 28m 13m S 1.9 0.1 0:00.27 frmweb
26581 mchen 17 0 554m 56m 8808 S 1.9 0.2 0:18.90 java
too many frmweb and java processes:
bash-3.2$ ps -ef|grep frmweb|wc -l
74
bash-3.2$ ps -ef|grep java|wc -l
25
I am new to EBS,any suggestions?
thanks

Please see the following docs.
Forms Process (FRMWEB) Consumes 100% of CPU in Oracle Applications R12 [ID 745711.1]
TROUBLESHOOTING FRMWEB RUNAWAY PROCESSES CONSUMING 100% CPU IN SOCKET MODE [ID 1382442.1]
R12: How To Generate A Stack Trace For Forms With Applications R12 [ID 789659.1]
Thanks,
Hussein

NI DAQmx 8.3 and CPU usage

I have similar problem as described on page http://forums.ni.com/ni/board/message?board.id=250&message.id=23831
but have solution and some reflections.
first of all, about system
system use 2x PCI-6143 and take data from 16 channels with maximum rate (250 kS/s)
program
was created about year ago (with LV 7.1.1, DAQmx 7.4) and on PC with
PIV (3.2 GHz) processor and 1 Gb of RAM work properly (CPU usage less
30%).
Now I've recompile program with LV8.2 and update drivers to DAQmx 8.3. now program can't work properly because CPU usage 100%
I create test VI for research this problem.
First version (daq_test1) - simple code - configure daqtask and get data.
I found:
if
sample rate less or equal 90 kS/s (on PCI-6143) CPU usage less 5%, but
when rate more 95 kS/s CPU usage jump to 60% (for one or more channels
on one or two devises).
Then I create simulated devise PCI-6143 in MAX and the same vi (daq_test1) require not more than 5-10% of CPU.
also
I have examine devise 16E-4 and find the same problem: if samle rate
more than "boundary" rate, CPU usage is too much (50-70%).
Then I add configure parameters (daq_test2) - add manualy DMA "on". There are no effects (CPU usage jump to 60% on "fast" rates)
Then I "play" with WaitMode (daq_test3). There are no effects (even if WaitMode=Sleep and SleepTime>1s CPU usage about 60%)
Finally
I create vi (daq_test4), where "manually" check
AvailableSamplesPerChannel and call DAQmx Read only when bufer has more
samples, that I need.
So I'd wound solution, but think driver
MUST check available samples carefully (also, why DAQmx 7.4 can fast
scan, but DAQmx 8.3 can't do it at least the same way as previous version).
Attachments:
daq_test.zip ‏78 KB

Artem,
Thank you for contacting National Instruments support. This is expected behavior. When the wait mode is set to Sleep, DAQmx will only sleep if and only if there is no data available to process. So, for example, at 200 kS/s, data is filling up the buffer fairly quickly and should always be available to read, which means that the process will not sleep at all. When data is always available, the CPU is going to handle it as quickly as possible and thus the CPU will appear to be running at near 100%.
Specifying a wait mode of Sleep is really only beneficial when the acquisition is running slowly enough that a lot of time is spent in DAQmx Read waiting for the data to arrive. In the past, the CPu was maxed out even at extremely slow sampling rates. Sleep mode alleviates this problem by putting the process to sleep when no data is ready for processing; however, if data is available, it will be handled immediately and no sleeping will occur. If data is constantly available for processing, the CPU is expected to deal with it right away and the usage will appear to be high.
Regards,
Kenn North
Senior Product Manager - Search, Product Data
http://ni.com/search

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If you have generated a fair-sized document through RoboHelp,
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repainting as you scroll through the document, etc., this solution
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Peter:
Thank you for responding to me, as I may not have been clear
enough, and I apologize for that. I was trying to keep it short and
sweet. This problem started when I began using RoboHelp X5 this
year.
To clarify...
- I'm not concerned with CPU usage during document
generation, that is to be expected. The document will need to be
generated originally from a RoboHelp WebHelp project. This does not
change. The problem takes place AFTER you generate a large document
and then open it in MS Word.
- My documents are large, 140-500 pages. It took forever to
scroll through the Word document (RoboHelp-generated), the screen
kept repainting, and the CPU usage stuck fluctuating frequently
between 50% and 100%, not allowing me to do much else. Editing
those documents was a nightmare. Even if I shut down all other
programs.
- Something translates to the Word doc from RoboHelp that
maxes out the CPU usage, and I can't locate the exact culprit.
However, it appears to be tied to the faded "]" symbol at the end
of the document (there is a "[" at the beginning, too). So you have
to omit more than the last paragraph mark; that symbol also needs
to be left out.
- The "corruption" information came from Microsoft; it could
be something other than that, but this is what they said. I found
nothing that would help on the RoboHelp forum, so I went to
Microsoft to see if they had a solution. Apparently, this is a
common problem with Word 2003, but the articles didn't mention
RoboHelp in the issues. I tried this solution, adding the omission
of the "[" symbol, with complete success.
- When you copy the document without the last paragraph mark,
it will still include the headers/footers when you paste it
(although you may need to adjust them slightly). This is not the
problem.
- When a document is generated, you can select to use a MS
Word template, which I do. I fully use the style sheets in
RoboHelp, and they match my Word styles (template) to keep things
in sync. Actually, this Word template remains in the project; it is
not moved to the folder that holds your Normal.dot file. So the
link to the template in RoboHelp from your document does in fact
remain intact. However, you can copy that template to another
folder outside the project and link it from there, but it won't
matter.
- The Word template (.dot) needs to be reapplied in order to
restore your styles, as the Normal.dot styles are applied when you
copy the content over to a new document. It doesn't matter where
you store the template. I reapply this SAME template after I copy
and paste the content into the new document. This is not the cause
of the problem. Note: The application of a template is not the same
thing as going back to the master copy. This is still a fresh
document, with the content pasted in and the same template applied.
- I have tried deleting the local copy and starting over. I
have moved the file to another location. I have renamed or created
a 'save-as' copy of the file. I tried editing out any extra
un-necessary merge-tags in Word, looked for macros, etc. All of
these things do not resolve the CPU Usage problem.
I hope this makes more sense. You can try it out if you wish,
but you will need to do this with a large document and use the
Print View when looking at the document in Word. You'll have less
of a problem in Normal View, or with a smaller document (under 50
pages).
Good luck!
Liz0259

Adobe Reader CPU Usage

Hello All,
The problem i'm having is that "acroread" process after being open for some time (many hours or even days) starts to use all the CPU without anyone touch the application. This causes lots of trouble because i'm using all the time simulation software and "acroread" starts to share CPU with my mission critical applications and I cannot be always checking if acroread has crashed.
I've tried with more than one Linux distribution and have read in some web forums that other linux distributions have the same problem.
Currently i'm using CentOS 4.4 (Linux 2.6.9-34.0.2.ELsmp #1 SMP Fri Jul 7 19:52:49 CDT 2006 i686 i686 i386 GNU/Linux)
Even in CentOS 4.3 , 4.2 , 3.4 they all had the same problem.
I'm using acroread 7.0.8 but older versions of 7.x did the same.
Please share some ideas about this issue.
Thanks

Not sure whether this is the same problem or a different one.
For us acroread consumes all the memory and the CPU is maxed out swapping
until the oom manager kills acroread and the machine recov
Our machines are 2GB RAM with 2GB swap, running the x86_64 version of
Scientific Linux 5.3 (a recompilation of Red Hat Enterprise Linux 5.3)
- we don't really need a 64bit OS but some local apps run faster in 64 bit.
We first saw this with, I think, acroread 8.1.4 and continues through to 8.1.6.
(I am reluctant to switch to v9 since we are using it as a pdf viewer
not a flash viewer - adding javascript was bad enough - we would be
more likely to move to evince or another open source pdf viewer).
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What extra imformation would help to debug this ?
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100% CPU Usage caused by HMI

Hi everybody:
I'm working with LabVIEW DSC 8.2.1 in a system that monitors many variables of a plant, such a typical SCADA system. For this reason, the use of the graphic tools is highly used on the development of this system. Everything works fine, but I have only one problem.... the usage of the CPU.
When I am working on the development system I (not the executable) I start the application and after the variables are initialized and every process has started and are running , the CPU usage is raised around 90 - 100%. After a few days investigating the reason of this, I realized thay when I change the view on the screen to another view, for example the block diagram of the application, while the application is still running, the CPU usage goes around 15 - 25%. I've tried these many times changing the view from Front panel to Block Diagram and viceversa and the result is always the same: Front Panel= around 100%; Block diagram or another view (other applications MMIs, or Block Diagrams, etc.)= around 20%.
Another thing that I realized is that the other view (different to front panel) has to fill the entire screen to work the way I'm telling before.
When I build and run the executable, the usage of the CPU is the same... (around 100%), but I can't see any other application, because the application built is the shell of the OS, so no other views are available.
I don't know if there's some other consideration to take into account about the HMI when creating an application, and I'll appreciate very much your help.
Thanks in advance!
Ignacio von Unger

From http://100cpuusage.blogspot.com/
100 Percent CPU Usage when you run programs after you install Windows XP Service Pack 2
CPU Usage 100% Symptoms
When you run some programs, the CPU Usage meter in Task Manager may indicate CPU Usage 100%. When CPU utilization reaches 100 percent, programs will run very slowly or stop responding (hang) and your computer is freezing or crashing.
Noteress CTRL+ALT+DEL to view CPU utilization, click Task Manager, and then click the Performance tab.
These symptoms occur after you install Microsoft Windows XP Service Pack 2 (SP2).
CPU Usage 100% Cause
These problem occurs because of the user interface code that is included in Windows XP SP2. The high CPU utilization is caused by the additional overhead that occurs when the IsWindow function is called by the user interface code.
RESOLUTION
Hotfix information
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.
To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:
http://go.microsoft.com/?linkid=6294451
Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=support (http://support.microsoft.com/contactus/?ws=support)
Prerequisites
To apply this hotfix, you must have Windows XP SP2 installed.
Restart requirement
You must restart the computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace any other hotfixes.
File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel. Date Time Version Size File name
30-Mar-2005 19:53 5.1.2600.2643 577,024 User32.dll
30-Mar-2005 01:30 5.1.2600.2643 1,836,544 Win32k.sys
if you still do not know how to Fix CPU Usage 100%?
I suggest you try targeted software - registry cleaner to fix cpu usage 100%
Because there are many cases causing high cpu utilization.
1. If you do a lot of web surfing and are concerned about spyware, adware infecting your machine, they will cause system crashes and CPU utilization reaches 100 percent. Some good registry cleaner has the function of spyware & adware removal.
2. You install many beta version of the software, Drivers are not certified, which resulted in many errors, you get high cpu usage.
3.100% CPU Usage while you use Internet Explorer
4. many unneed Startup Program.
5.Others PC Errors. - DLL errors, runtime errors, Windows-Installer Errors, Windows Startup Errors,paths Broken DLLs, OCX, and ActiveX Components all will cause 100% cpu usage. Your PC will run very slowly.
Registry cleaner can do a complete scan of your entire file system and registry in under 2 minutes! Fix High Cpu Usage. Improve PC Speed By Up to 70%!
http://www.100-cpu-usage.com/ suggest you to download registry cleaner to fix 100% cpu usage too.
PCErrorsfixer.com - Top 3 Windows Registry Cleaners, Improve PC Performance,5 Star Rated. Fix 100% CPU Usage, Runtime Error, DLL Error,Windows Startup Errors,Internet Explorer Errors, Speed Up your slow PC.

CPU Usage Maxing Out using Explorer

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