Satellite A45 - CPU usage is high and applications slow

Hi all,
I'm trying to debug a hardware problem on my Toshiba Satellite A45. I'm running Ubuntu 10.04, but I don't believe this is OS or software related.
THE PROBLEM: CPU usage is high and applications slow to a crawl after using a memory intensive application for a few minutes, i.e. viewing a video or playing a game. Basically, anything that might use the screen a lot. If instead I work only from a command prompt, even when the application might be doing a lot of work, I don't encounter this problem. After shutting down all application, CPU usage is still higher than normal (90% idle, should normally be about 99% idle).
Xorg typically now showing about 6% usage (normally < 2%). If I at any time after this try to work in any application, usage is still bogged down. Only a reset gets me back to normal.
Note: My system had always worked fine, and I had not done any software installation or changes when this started happening.
However, the laptop did go through an 800 mile round trip in the back of the car in a padded laptop bag.
DEBUG: This doesn't seem to be RAM as I have replaced RAM and reseated the RAM, and the problem still occurs. This doesn't seem to be the Hard Drive as I can try to run from a Live CD (no HDD usage) and everything still slows to a crawl.
HELP: I'm not sure how to debug from here.
I don't have extra bits of hardware to do swaps.
Any ideas how to further debug this?
Thanks,
Grommit

Hi grommit
What do You think about the possibility that your PC is becoming overheated?
To me this sounds like such a scenario.
Your using an application which is intensive - which makes the unit warm up a lot probably.
After that everything is sluggish. This is what may happen when cooling is not sufficient - the CPU is throttled to reduce heat generation. And the effect is that the unit works pretty slow.
May I suggest that You try to let the unit be off for some time before trying it again - I don't know your possibilities, but I would put it on the balcony or on the floor below an open window too cool it really much.
Then try again from whatever media you like.
The result? Good performance for a while again? Then either clean the cooling module yourself or have a repair workshop do this for You.
Good luck and stay with Linux! :)
BR Tom

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Microsoft Corporation
System Name
Y2K-PC
System Manufacturer
System manufacturer
System Model
System Product Name
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x64-based PC
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Intel(R) Core(TM)2 Duo CPU
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India
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User Name
y2k-PC\y2k
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India Standard Time
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3.75 GB
Available Physical Memory
2.07 GB
Total Virtual Memory
7.49 GB
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5.80 GB
Page File Space
3.75 GB
Page File
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Intel(R) G41 Express Chipset
PNP Device ID
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Intel(R) 4 Series Express Chipset Family, Intel Corporation compatible
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INF File
oem6.inf (iEGL0 section)
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Color Table Entries
4294967296
Resolution
1440 x 900 x 59 hertz
Bits/Pixel
32
Memory Address
0xFE400000-0xFE7FFFFF
Memory Address
0xE0000000-0xEFFFFFFF
I/O Port
0x0000DC00-0x0000DC07
IRQ Channel
IRQ 4294967294
I/O Port
0x000003B0-0x000003BB
I/O Port
0x000003C0-0x000003DF
Memory Address
0xA0000-0xBFFFF
Driver
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The screenshot http://dl.getdropbox.com/u/1811427/misc/idle.jpg
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CPU Usage is high - WebLogic Server 8.1 SP5

Hi,
We upgraded the WebLogic Server 6.1 to WebLogic Server 8.1 SP5 for one of our application.
The load test with WLS6.1 results,
CPU Usage was peak up to 18% with sessions 10 -15 simultaneously.
The load test with WLS8.1 results,
CPU Usage was peak up to 60% for 12 users simultaneously.
Why this higher CPU Usage in WebLogic 8.1 SP5 than WebLogic 6.1 for the similar environment (hardware)?
Please give us the solution or the suggestions asap.

If MQ V5 clients cannot interoperate with MQ V7 servers, then perhaps MQ V6 clients support the 1.4 JVM? If so, I suppose you can use an MQ V6 client to communicate with V7.
Alternatively, perhaps MQ's "extended transactional client" provides more flexibility in interoperability than the client you're using.
Tom

Curious - CPU usage sometimes high!

Sometimes (but not often) I'll notice my Q10 (with OS 10.2.1.3247) is warm and using battery faster than usual.
A check of the CPU usage shows the System as the user of the CPU with usage rate vascillating around 50%.
A reboot thus far has always remedied the anomaly.
. . . . Pete

Did you add any emails account recently or install anything new like media card?
Or did you do an os update recently?

System CPU usage too high

Hi, i've been trying to troubleshoot this problem for some months.. everytime i try to use perfmon or another program to watch for network usage (download and upload) the System process spikes to 13%~ constantly until i close it.. I could "live"
without that but now everytime i'm using an application on my second monitor, the same thing happens... started happening just an hour ago, and it's really bothering me because i don't have a clue what driver could possibly cause this.
I've tried capturing xperf traces on another forum but they keep come as corrupted as the person whose trying to troubleshoot with me tells me, and i can't seem to get a grip of the xperf analyser myself to see what (driver?) is using the cpu so i can try
to replace it...
Anyway, as i type this it jumped up to 20% and i don't know what to do.
I'll upload two xperf traces here, but at least one is "corrupted" as the other kind member on the other forums told me. (which is the first one below)
https://dl.dropboxusercontent.com/u/36066558/highCPUUsage.7z
https://dl.dropboxusercontent.com/u/36066558/highCPUUsage2.7z
And the one i just recorded, https://dl.dropboxusercontent.com/u/36066558/highCPUUsage3.7z
Does someone have another way or can help me find what's causing it?
I used the command xperf -on latency -stackwalk profile -buffersize 1024 -MaxFile 512 -FileMode Circular && timeout -1 && xperf -d highCPUUsage.etl
I took a print of the System process Threads in Process Explorer http://i.imgur.com/vbW36rU.png
Before the today's change, the function shown there was mostly ntoskml.exe!KeGetCurrentProcessorNumberEx+0x34, i don't know if that means anything...
Thanks.

NTM
First Xperf has been replaced by Windows performance recorder. Second there was almost no data recorded in your trace. Please run a windows performance trace as instructed in the wiki and upload it. Make sure you run the trace when the
problem is happening
In order to diagnose your problem we need to run Windows performance toolkit the instructions for which can be found in
this wiki
If you have any questions feel free to ask
Please run the trace when you are experiencing the problem
Wanikiya and Dyami--Team Zigzag

Memory usage gets high and stays high

I'll use my current project as an example, but I've been noticing this issue ever since I started monitoring my computer's memory usage. If I have an hour long Premiere CC timeline and render it, during rendering my computer's memory will go up to about 90%. After rendering is done, task manager shows that Premiere is still using about the same amount of memory, and it stays that way until I restart my computer. It's like it has locked into using certain resources and cannot let go. Any way to remedy this? I currently have 10gb memory (ordered 2gb more that is arriving this week), so it's not the fastest machine around, but should handle memory better in my opinion. I am fine with the rendering speed itself, it's just the tied up resources afterwards that seem like it could be fixed.
One more point - one solution is forcing Premiere and all its components to close. This gets the memory back to normal. Unfortunately, sometimes after I render a long timeline and force restart Premiere, when I get back all my render files don't properly reconnect and I'm forced to re-render the timeline. The fact that it doesn't reconnect to the render files is another related-issue I need help with too, if anyone can offer feedback. Thanks!

On the lost renders.
http://forums.adobe.com/thread/1144624?tstart=30
On the memory issue, I'm not sure anything is wrong here. You say PP releases it when you close PP. That's the expected behavior.

What is the CPU usage of X and cpu temp on your Arch?

I just installed the new arch 2009 02. Everything seems to be perfectly out of box, I have lxde DE.
But I noticed that in idle X is using around 2~3% cpu compared to below 1% in the old Arch I had before. It seems there is a little lag in the desktop experience, not obvious though, but not as responsive as my old Arch. Also the cpu temperature under lm_sensors gives me 43 constantly compared to 39 in my old Arch?! This is not some random sample of temperature, I constantly monitored it to realize it indeed runs hotter.
Also, when I open one mplayer, it uses 40% cpu + 20% for X. If I open 2 mplayer, fan will go noisy and cpu hit full and both videos become choppy! This never happened in my old Arch. I search the forum for quite a while, but have not found exactly the reason.
Some help or information? Greatly appreciate it.:D
My Hardware:
Shuttle XPC sn68sg2
Athlon x2 5200+ 2.7Ghz
Corsior 2G Ram
Asus Nvidia Geforce 7600GS
WD 250G x2
Last edited by yingwuzhao (2009-02-21 20:57:51)

Hmm interesting. How old was the "old arch" you are talking about?
Because if it was quite a while ago that you ran Arch and recorded those temperature readings, I might wonder if your hardware is aging or dust is gathering inside your computer case, decreasing air flow and increasing temperature.
My laptop also runs almost constantly around 43 degrees and about the same at X idle. This seems normal to me though.
Last edited by CheesyBeef (2009-02-21 21:12:13)

Cpu usage is 100% and firefox 10

I have a question. I'm on dial-up and have a older desktop computer. I guess it's about 5 years old. Lately when I'm on firefox, especially sites with a lot of graphics like ebay, firefox freezes and then I have programs that say that they're not responding. When I check windows task manager, firefox.exe usually says it's anywhere from 120,000-180,000K. How do I get the computer not to freeze? Sometimes it takes up to an hour to close down everything because it's not responding. How do I fix this? Can I tweak something in firefox? While searching google, I found the following info. There was no date on the article. Would this work?:
Lower the max number of HTTP connections
On slow connections, too many HTTP connections may cause timeouts.
In the Location bar, type about:config and press EnterReturn.
The about:config "This might void your warranty!" warning page may appear. Click I'll be careful, I promise!, to continue to the about:config page.
In the Filter box at the top, type network.http.max-connections.
Double-click on the network.http.max-connections preference, the "Enter integer value" dialog box will open.
In the field, type 30 which was the default value in old versions of Firefox and click OK.

Yes, you can try that, see for more info : [http://kb.mozillazine.org/Network.http.max-connections Network.http.max-connections ]
also if you have this '''network.http.keep-alive''' in about:config TRUE (probably yes)
then type in the about:config bar '''network.http.pipelining''' and '''double-click''' on it to make it '''TRUE''' (it is false by default)
read :
[http://kb.mozillazine.org/Network.http.keep-alive
Network.http.keep-alive]
[http://kb.mozillazine.org/Network.http.pipelining Network.http.pipelining]
'''BUT''' keep in mind that dial-up connection you have is the big problem for fast load pages, just it is not fast enough, not fast at all.
If you want to reduce memory(60%) '''only when firefox minimize''' ['''and only in windows os'''] there is an easy old good trick:
type in the address bar '''about:config'''
then press the button''' i'll be careful i promise'''
then '''right-click''' anywhere in the list of preferences and choose '''new''' > '''boolean'''
then type in the open window '''config.trim_on_minimize'''(or copied from here)
then click '''OK''', and in the next window select '''TRUE''' and click '''OK'''.
exit firefox and restart-it.
read: [http://kb.mozillazine.org/Config.trim_on_minimize Config.trim on minimize]
see also : [http://kb.mozillazine.org/About:config About:config]
read, try and tell us the news(but you known it dial up connection is the problem, and the computer memory for freezing)
thank you
Please mark "Solved" the answer that really solve the problem, to help others with a similar problem.

MBP with 10.6.8: CPU usage high, no responsible processes shown in Activity Monitor. What causes this?

After using my computer for some time, CPU usage climbs to about 90% (ca. 65% user / 26% system) and fans run at high speed, but there is no processes that seem to use CPU (other than Activity Monitor itself ~1%).
This has happened a few times recently. It happens when I've used my computer for some time, hours or a couple of days (I usually put my computer to sleep when not using it but rarely shut it down). I've tried to quit all running apps incl. Growl, Dropbox, and anything that could be responsible to this but with no results. Putting computer to sleep for a long time doesn't help, cpu usage will climb instantly after wake up. Restarting system is the only thing that helps.
Most of the time I use my laptop with external monitor, lid closed and connected to power supply. When experiencing this, opening the lid causes fans to slow down, but CPU usage remains high and battery drains quick.
Any ideas what might cause this?
My MBP is 15" model with Core 2 Duo 2,66 GHz (MacBookPro 5,3), OS X version is 10.6.8, all available updates are installed.

Perform a SMU reset.
https://support.apple.com/kb/HT3964
Remove the anti-virus, it's running a root level process all the time that's taking your CPU and it's not necessary as there are no Mac viruses, Apple has the trojan angle covered already.
Always on anti-virus on a Mac is always a source of problems, also is MacKeeper, uninstall that here if you have it.
http://applehelpwriter.com/2011/09/21/how-to-uninstall-mackeeper-malware/
If you need to clean the Windows filth off PC files, then use the free, run as you need, ClamXav.
http://www.clamxav.com/
It seems your machine is used in a corporate enviroment, thus likely a rule that anti-virus must be used, you can avoid high CPU usuage by using the ClamXav instead.

Satellite A45 - CPU usage is high and applications slow

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