Something weird is happening

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Profile AllenIN
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Message 1800225 - Posted: 3 Jul 2016, 0:33:21 UTC

Just recently, after a lightening storm which took out our power, I have a situation with one of my systems.

It's an AMD Athlon 64 X2 Dual Core Processor 5000+ .

Suddenly at idle, it is showing 90% usage on one core and 20% on the other core. When I check in task mgr, nothing is running and nothing is taking over the system.

Anyone ever see this before??

Thanks for any insight!

Allen
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Message 1800242 - Posted: 3 Jul 2016, 1:37:00 UTC - in response to Message 1800225.  

Suddenly at idle, it is showing 90% usage on one core and 20% on the other core. When I check in task mgr, nothing is running and nothing is taking over the system.

Is that with "Show all processes" selected?

If so i'd suggest getting Process Explorer & seeing what it shows.
High CPU usage, and nothing showing in Task Manager can be a sign of a Root kit.
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Message 1800248 - Posted: 3 Jul 2016, 1:46:51 UTC

Does it persist after a full power down reboot?
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Message 1800265 - Posted: 3 Jul 2016, 2:45:41 UTC - in response to Message 1800242.  

Suddenly at idle, it is showing 90% usage on one core and 20% on the other core. When I check in task mgr, nothing is running and nothing is taking over the system.

Is that with "Show all processes" selected?

If so i'd suggest getting Process Explorer & seeing what it shows.
High CPU usage, and nothing showing in Task Manager can be a sign of a Root kit.


Would that happen only on one core of the processor? I'll check it out with a root kit sniffer in the mean time. Thanks
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Message 1800266 - Posted: 3 Jul 2016, 2:46:40 UTC - in response to Message 1800248.  

Does it persist after a full power down reboot?


Yes, after several reboots and a video driver update too.
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Message 1800271 - Posted: 3 Jul 2016, 2:58:56 UTC
Last modified: 3 Jul 2016, 3:00:14 UTC

Which OS is it running? I had a Athlon dual core with Vista where it one day started doing that maybe 50% of the time at startup. I can't remember if it was only 1 core or both. But the service using the processor would show up in task manager. My best guess was my Windows Update was broken. Nothing I did fixed it.
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Message 1800462 - Posted: 3 Jul 2016, 19:49:12 UTC

I have an old AMD laptop running Vista that does the same thing.

I'm pretty sure it's Windows Update trying to scan for needed updates. It takes over 24 hours for it to run it's scan.

I stopped turning it on.
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Message 1800496 - Posted: 3 Jul 2016, 21:49:24 UTC - in response to Message 1800462.  

I have an old AMD laptop running Vista that does the same thing.

I'm pretty sure it's Windows Update trying to scan for needed updates. It takes over 24 hours for it to run it's scan.

I stopped turning it on.

SAME HERE - started with the May 2016 "Patch Tuesday" updates... I thought my Desktop Visa PC was acting up.

I let it run for 3 days before DISABLING MS WIN updates. It will eat up a full core trying running "svchost.exe" to look for updates but it NEVER touches the www according to ProcessExplorer. No amount of trying to "fix" has resulted in a working MS Win update.
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Message 1800504 - Posted: 3 Jul 2016, 22:45:51 UTC - in response to Message 1800496.  

I let it run for 3 days before DISABLING MS WIN updates. It will eat up a full core trying running "svchost.exe"

Thanks for the info I've been trying for months attempting to address that parasite. Turning off auto updates seems to have fixed it. I will monitor closely. I expect my meager production to increase by over 30%.
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Message 1800542 - Posted: 4 Jul 2016, 2:08:47 UTC - in response to Message 1800271.  

Which OS is it running? I had a Athlon dual core with Vista where it one day started doing that maybe 50% of the time at startup. I can't remember if it was only 1 core or both. But the service using the processor would show up in task manager. My best guess was my Windows Update was broken. Nothing I did fixed it.


Hey, that sounds like what is happening to me. I'm currently having trouble with MS Update as well. It doesn't ever download even when you ask it to and yes, it's Vista 32.

I'm guessing that it finally straightened itself out on your machine??
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Message 1800543 - Posted: 4 Jul 2016, 2:10:10 UTC - in response to Message 1800462.  

I have an old AMD laptop running Vista that does the same thing.

I'm pretty sure it's Windows Update trying to scan for needed updates. It takes over 24 hours for it to run it's scan.

I stopped turning it on.



Sounds like I need to just turn it off to fix the problem.
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Message 1800547 - Posted: 4 Jul 2016, 2:23:59 UTC - in response to Message 1800496.  

Thanks one and all. That did the trick. No more automatic updating for me!!
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Message 1800549 - Posted: 4 Jul 2016, 2:33:49 UTC - in response to Message 1800547.  

Thanks one and all. That did the trick. No more automatic updating for me!!

That is the way it seems to me on my 2 W7 boxes, the W8.1 box has not yet been affected. What an insidious parasite M$ has produced.
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Message 1800851 - Posted: 5 Jul 2016, 2:04:06 UTC - in response to Message 1800549.  

Thanks one and all. That did the trick. No more automatic updating for me!!

That is the way it seems to me on my 2 W7 boxes, the W8.1 box has not yet been affected. What an insidious parasite M$ has produced.


I suspect it is a way to get people to upgrade to Windows 10.
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Message 1801068 - Posted: 6 Jul 2016, 13:46:45 UTC
Last modified: 6 Jul 2016, 14:04:46 UTC

got here some issues too. But on gpu, cuda5.0 wus running only 0.020% percent/ per second.

An its a GTX 670 (device 0) , i got the GT 640 (device 1) parallel running and got insane quicker running time of a cuda 5.0 workunit , whats going wrong ?

Of course it tryed several device drivers...and restarts have no effect on it.

Is it windows 7 (64-Bit) ?

------------------

sorry, i found the error. there was gammacorrection acivated in the drivers , sorry
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Message 1801085 - Posted: 6 Jul 2016, 15:49:56 UTC - in response to Message 1800851.  

Thanks one and all. That did the trick. No more automatic updating for me!!

That is the way it seems to me on my 2 W7 boxes, the W8.1 box has not yet been affected. What an insidious parasite M$ has produced.


I suspect it is a way to get people to upgrade to Windows 10.

It came back on the W7 Pro box so I got radical. I shut down Boinc so I wouldn't lose the work I had done then I went to task manager and ended the task. I was pleased Windoz didn't crash and things have stable for over a day.
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Message 1801099 - Posted: 6 Jul 2016, 17:21:56 UTC - in response to Message 1801068.  

got here some issues too. But on gpu, cuda5.0 wus running only 0.020% percent/ per second.

An its a GTX 670 (device 0) , i got the GT 640 (device 1) parallel running and got insane quicker running time of a cuda 5.0 workunit , whats going wrong ?

Of course it tryed several device drivers...and restarts have no effect on it.

Is it windows 7 (64-Bit) ?

------------------

sorry, i found the error. there was gammacorrection acivated in the drivers , sorry


No shame in finding gremlins messing with the system. It helps others looking to figure out what's going on. In my case I run f.lux (for changing colour temperature to reduce eyestrain), which definitely affects performance across all sorts of applications (980 SC, games and video streaming)
"Living by the wisdom of computer science doesn't sound so bad after all. And unlike most advice, it's backed up by proofs." -- Algorithms to live by: The computer science of human decisions.
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