Windows 10: Excessive System Interrupts CPU Time

Hello,


I've been having a slight problem with high system interrupt CPU usage for a while now. I have a basic idea of what they are and what they are there for and, by extension, it's not just some background program I can kill. I recall reading somewhere that a "healthy" CPU consumption by system interrupts should be somewhere around 0-2%, with maybe occasional spikes around 5%. However, I found with handy-dandy Task Manager and Resource Monitor that my system interrupts can end up clocking in anywhere around 20-40% CPU usage relatively steady, not just spikes, particularly while playing games.


I used LatencyMon to try and determine which files/drivers might be causing issues, and I've seen 4 come up:

• dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
• nvlddnkn.sys - NVIDIA Windows Kernel Mode Driver, Version 442.59 , NVIDIA Corporation
• HDAudBus.sys - High Definition Audio Bus Driver, Microsoft Corporation
• USBPORT.sys - USB 1.2 _2.0 Port Driver, Microsoft Corporation

I've tried checking all of my drivers, but as far as I can tell all of my drivers are up to date. I reinstalled my graphics driver twice once via GeForce Experience and once manually. I also tried unplugged all of my USB devices including my WiFi adapter, mouse, and keyboard. No luck with any of these though.


I tried searching for a new chipset driver, but I've been having issues finding one for my system Dell OptiPlex 755 mini-tower.


Any help addressing and potentially fixing this issue would be greatly appreciated.


Thank you,

Taylor G.


Specs:

CPU: Intel Core 2 Quad Q9550 4-core 2.87GHz

GPU: Gigabyte GT 1030 2GB GDDR5

RAM: 8GB DDR2 4x2GB

HDD: WD10EZEX 1TB

PSU: Seasonic S12II 520W

MB: OptiPlex 755 OEM

OS: Windows 10 Home 64-bit

:)

 

System interrupts

Starting about yesterday System interrupts has been hogging all of my cpu power. Restarting my computer does not fix the issue. System interrupts only begins to use excessive cpu power when i connect to Wi-Fi. If i restart my computer and i do not connect
to Wi-Fi then it works normally but the moment i connect System interrupts will begin to use 15-30% cpu power and stays that way even if i disconnect from the Wi-fi until i restart my computer again.

Does any one have a fix for this?

 

System Interrupts - Problem or Symptom?

You are right, disabling the network kills the "interrupt" (don't know what to do with it though!).

Edit: this might be the answer networking - High System CPU and interrupts when network I/O - Super User (a feature that downloads and shares updates on network from my PC is enabled)

 

System Interrupt High CPU Usage

Hi all,

I am using a Windows 10 Home on an Acer Aspire F5-573G laptop.

A proccess which is called 'System Interrupt' is using about 8-12% of CPU all the time.

I've installed all the Windows updates and all the drivers as well but the problem is still not gone.

Would you have any suggestions of what should I do in this case?

Thank you.