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

[eminememinem]

Hey Andre.

Have a problem with System Interrupts. Whenever I plug in a headphone jack my CPU usage goes up by about 20 percent. Latency Mon points out the problem is "HdAudUBus.sys" but I can't figure out to fix it. I tried reinstalling drivers and all of that. When I actually deleted the driver the problem went away but then I had no audio!

Thanks

[MagicAndre1981]

Also, it only happens with web surfing, not FTP, torrent, games or http downloads.

hmm, this is strange. I have no explanation for this behavior. Try a better NIC. Look in the description if it uses the CPU for Interrupt handling.

Have a problem with System Interrupts. Whenever I plug in a headphone jack my CPU usage goes up by about 20 percent. Latency Mon points out the problem is "HdAudUBus.sys" but I can't figure out to fix it. I tried reinstalling drivers and all of that. When I actually deleted the driver the problem went away but then I had no audio!

which headphone and which Windows version do you use?

[AtillaMaximum]

hmm, this is strange. I have no explanation for this behavior. Try a better NIC. Look in the description if it uses the CPU for Interrupt handling.

I don't have much to get a new card. I'm guessing this one doesn't have it though, I can't find any info even from manufacture.

http://www.amazon.com/dp/B004F34ONC/ref=asc_df_B004F34ONC1552192?smid=A3K929QT0IENFR&linkCode=asn&creative=395105&creativeASIN=B004F34ONC&tag=cnet_mp-2950-20

I would think this one does but can't find anything about it either.

http://www.newegg.com/Product/Product.aspx?Item=N82E16833342004

Also, do you by chance know if these are compatable with my PCIe 16x slots? I have 4 16x slots and 2 reqular PCI.

[MagicAndre1981]

I don't know both cards.

What you can do it to check if "Interrupt moderation" is disabled in the device manager. Select the realtek card and show the properties and look in the setting if the option is disabled. If yes, enable it and all other settings with the name Offload should be also enabled:

http://www.vistax64.com/1053280-post4.html

[eminememinem]

Also, it only happens with web surfing, not FTP, torrent, games or http downloads.

hmm, this is strange. I have no explanation for this behavior. Try a better NIC. Look in the description if it uses the CPU for Interrupt handling.

Have a problem with System Interrupts. Whenever I plug in a headphone jack my CPU usage goes up by about 20 percent. Latency Mon points out the problem is "HdAudUBus.sys" but I can't figure out to fix it. I tried reinstalling drivers and all of that. When I actually deleted the driver the problem went away but then I had no audio!

which headphone and which Windows version do you use?

Any headphone jack, be it iPod or skullcandy or regular speakers. Windows 7 Home Premium.

[MagicAndre1981]

can you make a xperf trace, zip and upload the ETL file, please?

[olander0808]

I did this and the results showed that hal.dll was the culprit. Now to the question, how do I fix it?

[eminememinem]

can you make a xperf trace, zip and upload the ETL file, please?

http://i.imgur.com/Vxxha.jpg

[AtillaMaximum]

I don't know both cards.

What you can do it to check if "Interrupt moderation" is disabled in the device manager. Select the realtek card and show the properties and look in the setting if the option is disabled. If yes, enable it and all other settings with the name Offload should be also enabled:

http://www.vistax64.com/1053280-post4.html

Interrupt moderation was on enabled as well as all the offload options.

[drhass]

I did this and the results showed that hal.dll was the culprit. Now to the question, how do I fix it?

I have the same results and the same question!

[olander0808]

Now it actually seems that USBPort.sys is the problem... How do I solve this?

[MagicAndre1981]

I did this and the results showed that hal.dll was the culprit. Now to the question, how do I fix it?

I have the same results and the same question!

update the BIOS and try a different power plan.

http://i.imgur.com/Vxxha.jpg

you have NO issue. 31µs for ISR and 101 for DPC are awesome good.

Interrupt moderation was on enabled as well as all the offload options.

try a better 1GBit card from Intel or reduce the speed from GBit to 100MBit. Maybe this helps.

Now it actually seems that USBPort.sys is the problem... How do I solve this?

Which USB devices do you use? Can zip and upload the ETL file, please?

[olander0808]

...

I actually solved the issue after three days of constantly trying. The solution was to update BIOS, which I actually did before seeing your recommendation. Thanks anyway!

[MagicAndre1981]

ok, nice to hear that we had both the same idea and that it fixed your issue.

[eminememinem]

I did this and the results showed that hal.dll was the culprit. Now to the question, how do I fix it?

I have the same results and the same question!

update the BIOS and try a different power plan.

http://i.imgur.com/Vxxha.jpg

you have NO issue. 31µs for ISR and 101 for DPC are awesome good.

Interrupt moderation was on enabled as well as all the offload options.

try a better 1GBit card from Intel or reduce the speed from GBit to 100MBit. Maybe this helps.

Now it actually seems that USBPort.sys is the problem... How do I solve this?

Which USB devices do you use? Can zip and upload the ETL file, please?

Are you sure though? On average, whenever I plug in something the CPU shoots up 20 to 30 percent and sometimes lags the computer.