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#712365 - 27th Jul 2012 7:04pm Cyclic CPU use
Snodvan Offline

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Registered: 19th Mar 2008
Posts: 1289
Loc: Wallasey Village
Odd one this.
I was watching CPU use on my laptop using Task Manager. About every 8 seconds there is a spike in CPU use. With nothing else apparently working CPU goes from 3-5% typical to a spike of abround 60-70% use on this 8 sec or so cyclic basis.

If I look at "processes" in operation - these do not change their memory requirements.

If I disconnect from the internet then CPU use more or less flatlines at a few%.

Anybody any clues as to WHY ?
Do I need to worry about something ?

Snod


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#712369 - 27th Jul 2012 7:12pm Re: Cyclic CPU use [Re: Snodvan]
Mark Online   Reading


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Registered: 9th Nov 2003
Posts: 21085
Loc: Wirral
Click on the tab saying Networking and see if the pulse continues with the internet On.

Then you will understand if anything is being transmitted / received with the spikes.

Get a scree shot of the service page too wink
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#712383 - 27th Jul 2012 8:27pm Re: Cyclic CPU use [Re: Mark]
Snodvan Offline

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Registered: 19th Mar 2008
Posts: 1289
Loc: Wallasey Village
Mark
Networking page shows a few very minor 'blips' but with no pattern to them

"Services" needs 7 pages to cut/ paste. A few are included here. Anything special I could look for there

I have to say the computer works OK.
HP G62 laptop working wireless to an old Belkin router and then Virgin cable

Snod


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5 Precepts of Buddhism seem appropriate. Refrain from taking life. Refrain from taking that which is not given. Refrain from misconduct. Refrain from lying. Refrain from intoxicants which lead to loss of mindfulness

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#712398 - 27th Jul 2012 9:30pm Re: Cyclic CPU use [Re: Snodvan]
SilentReader Offline
Addict

Registered: 27th Nov 2008
Posts: 238
Loc: Wallasey
try reordering the colum CPU in task manager and you will see what's using the cpu, it could be many things like app's checking for updates on the net, the O/S performing a check/task, but doing it by cpu usage in task manager is the easiest way to see what's using the cpu, and your best clicking on this a few times to order the apps that keep using the cpu

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#716102 - 12th Aug 2012 7:01pm Re: Cyclic CPU use [Re: Snodvan]
Snodvan Offline

Forum Addict

Registered: 19th Mar 2008
Posts: 1289
Loc: Wallasey Village
I THINK I have found the culprit!

The laptop is an HP G62 and a built-in program is is the HP Wirelesss Assistant HPWA_service.exe

This seems to be the program that spikes the CPU use every few seconds. Whatever, if I disable the program via Task Manager the CPU use no longer spikes but dribbles along at a few % usage. The laptop seems to run with no problems, indeed maybe slightly better.

A web check indicates that the HPWA files simply tell you when your wireless system is/is not in operation, and MAY be needed for the physical wireless on/off switch to work. In practice the switch button on my machine still works with the program disabled.

Question now - how do I stop HPWA_service.exe from loading every time the laptop is switched on ????

I guess I COULD find the file and rename it - but I seem to remember there is a much more elegant way of deciding allow/ disallow for programs at start up

Snod
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5 Precepts of Buddhism seem appropriate. Refrain from taking life. Refrain from taking that which is not given. Refrain from misconduct. Refrain from lying. Refrain from intoxicants which lead to loss of mindfulness

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#716113 - 12th Aug 2012 7:26pm Re: Cyclic CPU use [Re: Snodvan]
ChrisJ Offline

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Registered: 22nd May 2011
Posts: 119
Loc: Chester
Try MSCONFIG, -> StartUp, This tab controls what you allow to run at Start Up..

http://www.netsquirrel.com/msconfig/index.html
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