MagicAndre1981

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

1,451 posts in this topic

yes it works. Where do you have issues to follow?

When I run the cmd command I can't seem to find the txt file you have to double click to open

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So it seems you were right MagicAndre1981; i uninstalled Norton 360 (couldn't successfully end all it's processes via task manager), and my dpc issues vanished. Amazing/sad that their AV was the culprit, the thought never even crossed my mind.

Thanks for everything MagicAndre1981, i really do appreciate it.

@bruvau12: dpc.txt should be in you system32 folder....C:>Windows>System32. List it by date modified, should be at the top along with DPC_Interrupt.etl.

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yes it works. Where do you have issues to follow?

When I run the cmd command I can't seem to find the txt file you have to double click to open

you have to run the second command in the folder where you stored the ETL file.

So it seems you were right MagicAndre1981; i uninstalled Norton 360 (couldn't successfully end all it's processes via task manager), and my dpc issues vanished.

Thanks for everything MagicAndre1981, i really do appreciate it.

nice to hear that removing Norton 360 fixed it :)

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I finally got the final txt file which i attached to this message but I'm not sure which drivers are causing the problem

dpc.txt

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nice to hear that removing Norton 360 fixed it :)

So my main issue has been resolved thanks to MagicAndre1981, but i still seem to have the process, "Deferred procedure calls and interrupt services routines" eating up cpu resources; Any idea's?

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I finally got the final txt file which i attached to this message but I'm not sure which drivers are causing the problem

which issue do you have? The largest spikes are between 256 µsecs AND 512 µsecs.

but i still seem to have the process, "Deferred procedure calls and interrupt services routines" eating up cpu resources; Any idea's?

really? Make a new trace which captures this.

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Maybe my trace didn't get the cause of the problem because I really don't think my cpu usage should be averaging 30%. I'll run it again.

Edited by bruvau12
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really? Make a new trace which captures this.

Just a correction to my previous post: i do still have, "deferred procedure calls..." system interrupts in task manager/resources, but it isn't eating up much CPU on a closer look (about 0.30 to 1.20 under the Average CPU column). Regardless, i know the system interrupt shouldn't be there, so i'll run another trace and hopefully that'll point me in the right direction.

Will be back soon with the results.

Edited by 3Seven
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Maybe my trace didn't get the cause of the problem because I really don't think my cpu usage should be averaging 30%. I'll run it again.

do this and this time compress the ETL file and upload it.

Just a correction to my previous post: i do still have, "deferred procedure calls..." system interrupts in task manager/resources, but it isn't eating up much CPU on a closer look (about 0.30 to 1.20 under the Average CPU column).

this is ok. DPCs and interrupts are used by the system all the time so the values are ok.

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Maybe my trace didn't get the cause of the problem because I really don't think my cpu usage should be averaging 30%. I'll run it again.

do this and this time compress the ETL file and upload it.

Just a correction to my previous post: i do still have, "deferred procedure calls..." system interrupts in task manager/resources, but it isn't eating up much CPU on a closer look (about 0.30 to 1.20 under the Average CPU column).

this is ok. DPCs and interrupts are used by the system all the time so the values are ok.

I ran the test again and uploaded the text file. I also sent you a personal message of the actual dpc file. I think my problem my be ACPI.sys

BTW thanks for taking time out to help us solve our problem

dpc.txt

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yes ACPi.sys casues a lot of CPU usage and latency spikes, but also NDIS.sys causes spikes:

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

DPC Info

Total = 11539101

Elapsed Time, > 0 usecs AND <= 1 usecs, 204684, or 1.77%

Elapsed Time, > 1 usecs AND <= 2 usecs, 17405, or 0.15%

Elapsed Time, > 2 usecs AND <= 4 usecs, 18382, or 0.16%

Elapsed Time, > 4 usecs AND <= 8 usecs, 550336, or 4.77%

Elapsed Time, > 8 usecs AND <= 16 usecs, 10359924, or 89.78%

Elapsed Time, > 16 usecs AND <= 32 usecs, 385638, or 3.34%

Elapsed Time, > 32 usecs AND <= 64 usecs, 941, or 0.01%

Elapsed Time, > 64 usecs AND <= 128 usecs, 1587, or 0.01%

Elapsed Time, > 128 usecs AND <= 256 usecs, 191, or 0.00%

Elapsed Time, > 256 usecs AND <= 512 usecs, 5, or 0.00%

Elapsed Time, > 512 usecs AND <= 1024 usecs, 1, or 0.00%

Elapsed Time, > 1024 usecs AND <= 2048 usecs, 5, or 0.00%

Elapsed Time, > 2048 usecs AND <= 4096 usecs, 1, or 0.00%

Elapsed Time, > 4096 usecs AND <= 8192 usecs, 1, or 0.00%

Total, 11539101

Total = 11280556 for module ACPI.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, 542763, or 4.81%

Elapsed Time, > 8 usecs AND <= 16 usecs, 10352821, or 91.78%

Elapsed Time, > 16 usecs AND <= 32 usecs, 384283, or 3.41%

Elapsed Time, > 32 usecs AND <= 64 usecs, 483, or 0.00%

Elapsed Time, > 64 usecs AND <= 128 usecs, 43, or 0.00%

Elapsed Time, > 128 usecs AND <= 256 usecs, 160, or 0.00%

Elapsed Time, > 256 usecs AND <= 512 usecs, 2, or 0.00%

Elapsed Time, > 512 usecs AND <= 1024 usecs, 0, or 0.00%

Elapsed Time, > 1024 usecs AND <= 2048 usecs, 1, or 0.00%

Total, 11280556

Total = 8372 for module ndis.sys

Elapsed Time, > 0 usecs AND <= 1 usecs, 712, or 8.50%

Elapsed Time, > 1 usecs AND <= 2 usecs, 133, or 1.59%

Elapsed Time, > 2 usecs AND <= 4 usecs, 134, or 1.60%

Elapsed Time, > 4 usecs AND <= 8 usecs, 208, or 2.48%

Elapsed Time, > 8 usecs AND <= 16 usecs, 4812, or 57.48%

Elapsed Time, > 16 usecs AND <= 32 usecs, 350, or 4.18%

Elapsed Time, > 32 usecs AND <= 64 usecs, 448, or 5.35%

Elapsed Time, > 64 usecs AND <= 128 usecs, 1540, or 18.39%

Elapsed Time, > 128 usecs AND <= 256 usecs, 29, or 0.35%

Elapsed Time, > 256 usecs AND <= 512 usecs, 2, or 0.02%

Elapsed Time, > 512 usecs AND <= 1024 usecs, 0, or 0.00%

Elapsed Time, > 1024 usecs AND <= 2048 usecs, 2, or 0.02%

Elapsed Time, > 2048 usecs AND <= 4096 usecs, 1, or 0.01%

Elapsed Time, > 4096 usecs AND <= 8192 usecs, 1, or 0.01%

Total, 8372

So try to disable all 3rd party network tools like Comodo. The ACPI issues may be caused by overheating issues. Check the CPU temperature of your Intel i5-3210M CPU, please.

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I disabled comodo but no influence, I had this problem even after a clean install. I attached the temp of my hardware and the temperature seem high as a result of the load being applied to it?

post-362839-0-53577700-1349369442_thumb.

post-362839-0-98336500-1349370713_thumb.

Edited by bruvau12
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clean the CPU cooler. Also which laptop do you use? Try to update the BIOS and see if you can change the cooler policy so that the cooler fan runs more often to cool down the CPU more.

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The laptop is only about a month old and is on the latest bios

Edited by bruvau12
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WHICH laptop? I need the model name.

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