high cpu usage/interrupts


A

ab

hello..I have a dell m5030 laptop (v160 processor with 2 gig ram). Had for
a month..the cpu usage goes to 100% it seems at random, making it incredibly
slow. the only resolve is to restart the computer. I have process explorer
and it seems that the system/interrupt is hogging the cpu.

this laptop came with all the bells and whistles on it so I don’t think I
need to update the driver. I have removed the battery and have tried
turning off the wifi. It still doesn’t drop. any advise will be greatly
appreciated. Thanks.
 
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B

BillW50

In
ab said:
hello..I have a dell m5030 laptop (v160 processor with 2 gig ram). Had
for a month..the cpu usage goes to 100% it seems at random,
making it incredibly slow. the only resolve is to restart the
computer. I have process explorer and it seems that the
system/interrupt is hogging the cpu.
this laptop came with all the bells and whistles on it so I don't
think I need to update the driver. I have removed the battery and
have tried turning off the wifi. It still doesn't drop. any advise
will be greatly appreciated. Thanks.
Does Process Explorer say it is the DPCs? I am just making sure. If it
is interrupts like you say, does it happen more during hard drive usage?
 
D

Dave-UK

ab said:
hello..I have a dell m5030 laptop (v160 processor with 2 gig ram). Had for a month..the cpu usage goes to 100% it
seems at random, making it incredibly slow. the only resolve is to restart the computer. I have process explorer and
it seems that the system/interrupt is hogging the cpu.

this laptop came with all the bells and whistles on it so I don’t think I need to update the driver. I have removed
the battery and have tried turning off the wifi. It still doesn’t drop. any advise will be greatly appreciated.
Thanks.
Have you thought about removing all the crap that Dell
pre-installs onto their machines ?

http://www.pcdecrapifier.com/home

Once you get back to a basic Windows install then you can
see if it is still slow.

..
 
V

VanguardLH

ab said:
hello..I have a dell m5030 laptop (v160 processor with 2 gig ram). Had for
a month..the cpu usage goes to 100% it seems at random, making it incredibly
slow. the only resolve is to restart the computer. I have process explorer
and it seems that the system/interrupt is hogging the cpu.

this laptop came with all the bells and whistles on it so I don¢t think I
need to update the driver. I have removed the battery and have tried
turning off the wifi. It still doesn¢t drop. any advise will be greatly
appreciated. Thanks.
No such process is named "system/interrupt". There's System, System
Idle Process, svchost, and others but you'll have to be exact for anyone
else to know what process you are talking about.

If it's svchost, each instance of it rolls together several NT services.
You can use SysInternals' Process Explorer (which you say you have) to
look at what services are rolled into an instance of svchost that is
pegging CPU usage at 100%.
 
B

BillW50

In
VanguardLH said:
No such process is named "system/interrupt". There's System, System
Idle Process, svchost, and others but you'll have to be exact for
anyone else to know what process you are talking about.
Huh? I am running Process Explorer right now under XP (is it the same
for Windows 7 or do I need a different version?). And it lists System
Idle Process, but breaks it down further. It lists three more under this
one and they are called:

Interrupts (Hardware Interrupts)
DPCs (Deferred Procedure Calls)
System (which has all other OS processes listed under it)
 
A

ab

Process explore states system and under that two subcatagories../interrupts
and smss,exe...wish I could send a screenshot. and the description is "
hardware interrupts and dpc's"

yes I uninstalled most of the bloatware that came with the laptop that was
hindering the startup.

"VanguardLH" wrote in message
hello..I have a dell m5030 laptop (v160 processor with 2 gig ram). Had
for
a month..the cpu usage goes to 100% it seems at random, making it
incredibly
slow. the only resolve is to restart the computer. I have process
explorer
and it seems that the system/interrupt is hogging the cpu.

this laptop came with all the bells and whistles on it so I don¢t think I
need to update the driver. I have removed the battery and have tried
turning off the wifi. It still doesn¢t drop. any advise will be greatly
appreciated. Thanks.
No such process is named "system/interrupt". There's System, System
Idle Process, svchost, and others but you'll have to be exact for anyone
else to know what process you are talking about.

If it's svchost, each instance of it rolls together several NT services.
You can use SysInternals' Process Explorer (which you say you have) to
look at what services are rolled into an instance of svchost that is
pegging CPU usage at 100%.
 
D

Dave-UK

ab said:
hi..here is a screenshot I posted to Word. If u can see, I highlighted
System andyou will see that the interrupt is using 80% cpu usage...
Select and right-click the interrupt entry and select Properties.
You might find more information on the Image tab.
 
A

ab

thanks dave...I clicked on properties and all it says is N/A for
everything...there is a kill process option, but when I click on that it
just says "cannot perform action" I think process explorer is more of a
reference tool and you probably need to perform any outside actions through
"task manager"

"Dave-UK" wrote in message


ab said:
hi..here is a screenshot I posted to Word. If u can see, I highlighted
System andyou will see that the interrupt is using 80% cpu usage...
Select and right-click the interrupt entry and select Properties.
You might find more information on the Image tab.
 
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K

KCB

VanguardLH said:
No such process is named "system/interrupt". There's System, System
Idle Process, svchost, and others but you'll have to be exact for anyone
else to know what process you are talking about.

If it's svchost, each instance of it rolls together several NT services.
You can use SysInternals' Process Explorer (which you say you have) to
look at what services are rolled into an instance of svchost that is
pegging CPU usage at 100%.
Process Explorer DOES have a listing under System named "Interrupts". Mine
shows as using between 0.05-0.07 CPU. It's description is Hardware
Interrupts and DPCs. The OP probably needs to find out which hardware item
on their system is demanding so much attention.
 
K

KCB

ab said:
thanks dave...I clicked on properties and all it says is N/A for
everything...there is a kill process option, but when I click on that it
just says "cannot perform action" I think process explorer is more of a
reference tool and you probably need to perform any outside actions
through "task manager"
Have you added any hardware to the original setup? Any USB mouse or USB
drives? Do you have any SD or MMC cards in your reader? Have you tried
disabling the Bluetooth?
 
A

ab

added nothing new..however I noticed one thing: previously I changed the
touchpad sensitivity cause everytime I hovered the pointer over anything it
would automatically click it on....now that I set it back to default I have
not gotten cpu usage over 30% go figure...

"KCB" wrote in message

ab said:
thanks dave...I clicked on properties and all it says is N/A for
everything...there is a kill process option, but when I click on that it
just says "cannot perform action" I think process explorer is more of a
reference tool and you probably need to perform any outside actions
through "task manager"
Have you added any hardware to the original setup? Any USB mouse or USB
drives? Do you have any SD or MMC cards in your reader? Have you tried
disabling the Bluetooth?
 
C

charlie

added nothing new..however I noticed one thing: previously I changed the
touchpad sensitivity cause everytime I hovered the pointer over anything
it would automatically click it on....now that I set it back to default
I have not gotten cpu usage over 30% go figure...

in message



Have you added any hardware to the original setup? Any USB mouse or USB
drives? Do you have any SD or MMC cards in your reader? Have you tried
disabling the Bluetooth?
With each new version of window, it seems that the interrupt services
take more time or resources. Evidently, the touchpad software leaves a
bit to be desired as well, also something not new.
 
A

ab

hello..not sure I anyone is still paying attention to this thread, I have
just noticed that when I go to any of those flash video sites (ahem), after
a while I get 100% cpu usage and interrupts are 80%..so I lower my laptop
screen as if closing the laptop (putting in sleep or hibernation or whatever
mode), wait awhile and raise the screen up again. the interrupts go back
down to 1.40 and cpu usage is 11%

"charlie" wrote in message

added nothing new..however I noticed one thing: previously I changed the
touchpad sensitivity cause everytime I hovered the pointer over anything
it would automatically click it on....now that I set it back to default
I have not gotten cpu usage over 30% go figure...

in message



Have you added any hardware to the original setup? Any USB mouse or USB
drives? Do you have any SD or MMC cards in your reader? Have you tried
disabling the Bluetooth?
With each new version of window, it seems that the interrupt services
take more time or resources. Evidently, the touchpad software leaves a
bit to be desired as well, also something not new.
 
P

Paul

ab said:
hello..not sure I anyone is still paying attention to this thread, I
have just noticed that when I go to any of those flash video sites
(ahem), after a while I get 100% cpu usage and interrupts are 80%..so I
lower my laptop screen as if closing the laptop (putting in sleep or
hibernation or whatever mode), wait awhile and raise the screen up
again. the interrupts go back down to 1.40 and cpu usage is 11%
There are two ways you as a user can change hardware acceleration
on Flash video.

1) This is copied from another site. This is a general setting for the GPU.

"Right click the desktop, select Change Resolution, click on the
Advanced settings link, go to Troubleshoot tab, click Change settings
button, move the slider left to the third notch and click OK."

http://gallery.techarena.in/data/669/windows-7-wlm-2009-acceleration-fix.png

That would change the general level of hardware acceleration. All
graphics would be affected in some way by doing that, such as 3D
game play or Windows Aero effects.

2) A few people have trouble with the hardware acceleration features
of Adobe Flash plugin.

If you click within the Flash video window frame (perhaps right click,
not sure), you can bring up the Flash Settings dialog, which is
kinda small. There is a tick box in there that allows enabling or
disabling the hardware acceleration. Disabling it, may cause your
interrupt rate to drop.

http://images.maketecheasier.com/2010/11/youtube-flash-disable-acceleration.jpg

The difference that makes, is as follows. I played a test movie at 640x480,
and it used maybe 7% CPU. Switching to "full screen mode", causes Flash to
scale the video image. If you leave "Hardware Acceleration" enabled, the GPU
in the computer is used to scale the image to the full screen size. If the
GPU does it, the CPU stays at a low usage (5-7%). With hardware acceleration
via the GPU disabled, the CPU does the scaling, and it takes 40% CPU.

If you choose to use that option (disable hardware acceleration in Flash),
you might still see a fair bit of CPU used, but the interrupts level will
stay at a lower level.

HTH,
Paul
 
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B

BillW50

In
ab said:
hello..not sure I anyone is still paying attention to this thread, I
have just noticed that when I go to any of those flash video sites
(ahem), after a while I get 100% cpu usage and interrupts are 80%..so
I lower my laptop screen as if closing the laptop (putting in sleep
or hibernation or whatever mode), wait awhile and raise the screen
up again. the interrupts go back down to 1.40 and cpu usage is 11%
Adding to what Paul said in his reply. You never mentioned what kind of
system you are having trouble with. I have a few machines here that I
know Windows 7 would have very similar problems like those that you had
mentioned.

Also newer versions of software and drivers are not always best. You
might have better luck with an older version of Flash Player.

http://www.oldversion.com/Macromedia-Flash-Player.html

http://www.oldapps.com/flash_player.php
 

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