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How to get the cause of high CPU usage by DPC / Interrupt

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1434 replies to this topic

#1426
MagicAndre1981

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I try to disconnect the camera, let's see if it fixes!
 

 

 

what happened? Does this fixes the issue?


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#1427
Lottware

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I try to disconnect the camera, let's see if it fixes!
 

 

 

what happened? Does this fixes the issue?

 

 

Hello,
I tried to unplug the camera and effectively the problem is gone.
Since then the computer works perfectly.
No way to solve it? the camera is faulty? or the cable damaged?
O can also be a problem of windows? or pci card? or driver?
How can I resolve the enigma?

Edited by Lottware, 27 January 2015 - 07:01 AM.


#1428
MagicAndre1981

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Have you installed any drivers for the camera? If yes, contact support for newer drivers.


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#1429
Tripredacus

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I've been having a problem over the past year or so where everything becomes slow. Programs stop responding, mostly browsers. I have eliminated certain behaviours over time in an attempt to troubleshoot, such as:

- stream content in different browsers

- don't stream at all

- don't charge cell phone on PC

- disabling Windows sounds

- disable search indexing

 

The reason for disabling sounds, is when the PC gets slow, CPU light on PC would be solid. And sound events would be delayed. Sometimes I would get a sound up to 10 minutes later than when it would fire, say from new Email or IM notification. There have also been times where if the PC is in this slow stage, it will take a very long time to detect inserted USB keys. Another thing that happens is that both Firefox and IE Flash plugins will crash.

 

I have attached a LatencyMon report of 1 minute while the PC is in this state. It appears to me to be related to MSSE, however it is not scheduled to scan until afterhours.

 

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Attached Files


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#1430
MagicAndre1981

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capture a xperf trace and share this file


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#1431
MagicAndre1981

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I see no DPC issues:

Total = 182174
Elapsed Time, >        0 usecs AND <=        1 usecs,     29, or   0.02%
Elapsed Time, >        1 usecs AND <=        2 usecs,  22578, or  12.39%
Elapsed Time, >        2 usecs AND <=        4 usecs, 115151, or  63.21%
Elapsed Time, >        4 usecs AND <=        8 usecs,  12253, or   6.73%
Elapsed Time, >        8 usecs AND <=       16 usecs,  13887, or   7.62%
Elapsed Time, >       16 usecs AND <=       32 usecs,  10797, or   5.93%
Elapsed Time, >       32 usecs AND <=       64 usecs,   7097, or   3.90%
Elapsed Time, >       64 usecs AND <=      128 usecs,    371, or   0.20%
Elapsed Time, >      128 usecs AND <=      256 usecs,     11, or   0.01%
Total,                                                182174

everything under 1024┬Ás is ok.

 

I only see a high CPU usage from Windows Update. Also the disk is very busy


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#1432
Tripredacus

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That trace was made at the time of the computer running very slow. It actually took about 10 seconds to get the cmd window to restore (it was minimized) to run the trace. What other things can I try or look at?


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#1433
MagicAndre1981

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I think the system was slow because of the WU CPU usage. The Core2Duo is a bit old.
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#1434
tommygan

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Hii, Im surprised to see this thread still going after a few years, great work Andre!

 Anyways, I just got hit with this problem, and it seems like it happened after i had quite a massive windows update (after not updating for a long time) 

I followed the steps you have given on the first post, but when i got into the part that viewed the etl file and i cant seem to get the graph that you mentioned. Heres a screenshot 

 

Attached File  xperf.png   22.05KB   0 downloads

 

A little background 

Im using windows 8.1, 64 bits. 

I have problems with my cabled network connection. I always have to go into my device manager, uninstall the ethernet device, scan for hardware change, and then go into the properties and change its network address to the same one with my wireless to make it work. 

I tried using the wireless connection and disabled the ethernet device but the problem still persists. 

 

Also, i uploaded the etl file if it helps.

 

http://www.mediafire...C_Interrupt.etl

 

Thank you!



#1435
MagicAndre1981

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I dumped the ETL into the txt summary and here you can see that the driver DDDriver64Dcsa.sys is the cause:

Total = 38 for module DDDriver64Dcsa.sys
Elapsed Time, >        0 usecs AND <=        1 usecs,      0, or   0.00%
Elapsed Time, >        1 usecs AND <=        2 usecs,      0, or   0.00%
Elapsed Time, >        2 usecs AND <=        4 usecs,      0, or   0.00%
Elapsed Time, >        4 usecs AND <=        8 usecs,      0, or   0.00%
Elapsed Time, >        8 usecs AND <=       16 usecs,      0, or   0.00%
Elapsed Time, >       16 usecs AND <=       32 usecs,      0, or   0.00%
Elapsed Time, >       32 usecs AND <=       64 usecs,      1, or   2.63%
Elapsed Time, >       64 usecs AND <=      128 usecs,      2, or   5.26%
Elapsed Time, >      128 usecs AND <=      256 usecs,      5, or  13.16%
Elapsed Time, >      256 usecs AND <=      512 usecs,     13, or  34.21%
Elapsed Time, >      512 usecs AND <=     1024 usecs,      6, or  15.79%
Elapsed Time, >     1024 usecs AND <=     2048 usecs,      0, or   0.00%
Elapsed Time, >     2048 usecs AND <=     4096 usecs,      6, or  15.79%
Elapsed Time, >     4096 usecs AND <=     8192 usecs,      4, or  10.53%
Elapsed Time, >     8192 usecs AND <=    16384 usecs,      0, or   0.00%
Elapsed Time, >    16384 usecs AND <=    32768 usecs,      0, or   0.00%
Elapsed Time, >    32768 usecs AND <=    65536 usecs,      0, or   0.00%
Elapsed Time, >    65536 usecs AND <=   131072 usecs,      0, or   0.00%
Elapsed Time, >   131072 usecs AND <=   262144 usecs,      0, or   0.00%
Elapsed Time, >   262144 usecs AND <=   524288 usecs,      1, or   2.63%
Total,                                                    38

This looks like a Dell driver. Update or remove this driver.


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