Windows 10: System interrupts causing high CPU usage

Discus and support System interrupts causing high CPU usage in Windows 10 BSOD Crashes and Debugging to solve the problem; Hi guys, First of all the specifications of my laptop Aspire A515-51G-510P and the LatencyMon analysis can be found via the accompanied onedrive... Discussion in 'Windows 10 BSOD Crashes and Debugging' started by Trxtech, May 22, 2020.

  1. Trxtech Win User

    System interrupts causing high CPU usage


    Hi guys,

    First of all the specifications of my laptop Aspire A515-51G-510P and the LatencyMon analysis can be found via the accompanied onedrive https://1drv.ms/u/s!AllRymF9WV9mnRLODDduO9e3p3WP?e=oXWPjd.

    To start, I'll describe the problem. The issue is most prevalent while gaming. I'm experiencing major fps drops. My fps suddenly drops to 1-3. My character will stutter. A couple of second later, I can continue like nothing ever happened. And repeat. While working the stuttering can for example sometimes less often be noticed while typing. Sometimes, the characters I type appear much later. In task manager I often see a process called system interrupts occupying as much as 100% of the CPU.

    Here are all the fixes I've tried:

    -Updated all drivers via device manager and acer.com

    -Did a factory reset

    -Changed the realtek audio driver to MSI controlled

    -disabled CPU throttling via 'change advanced power settings' in the control panel => set minimum
    and maximum processor state at 100% also via regedit:
    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power


    -ran windows memory diagnostic tool

    -check disk for error via cmd: chkdsk c: /f /r

    -disabled audio enhancements

    -disabled wake on magic packet

    -my bios is up to date did not touch it, but I have v.2.02. The acer website says this is the most recent
    one for my model


    -disabled fast startup

    -removed all external devices



    I don't know what else to try. I've also ran LatencyMon. The results can be found in the aforementioned onedrive. If you have anymore questions, feel free to ask. Please help me!



    Kind regards

    :)
     
    Trxtech, May 22, 2020
    #1

  2. System Interrupts Causing High CPU Usage?

    What Is System Interrupts ? And How To Fix High CPU Usage Problem
     
    omarkanash, May 22, 2020
    #2
  3. Jen Quintos, May 22, 2020
    #3
  4. jaorg1234 Win User

    System interrupts causing high CPU usage

    High CPU usage when idle - System and System interrupts

    I've been trying to find a solution for a while and decided to ask here for more help. I've noticed that my CPU usage is pretty high when idle, even after a cold reboot of the computer:

    Task Manager View showing "System" and "System interrupts" causing a high CPU load:

    System interrupts causing high CPU usage vcOPv.png


    I've tried to dig deeper and used Processor Explorer to get more information, which, strangely enough, shows that "System interrupts" uses up more % of the CPU than the "System" process:

    Process Explorer showing that "Interrupts" is taking up 20% of the CPU load:

    System interrupts causing high CPU usage PC2cj.png


    Next I've tried to narrow down the causes of the interrupts by using the Windows Performance Recorder and analyze the graph using the Windows Performance Analyzer (can't post the screenshot due to not having enough rep, but it looks like hal.dll is causing the most interrupts, but less than the 20% seen with Process Explorer)

    Any suggestions how to proceed?

    Information about my computer:

    • Windows 10
    • Intel Core i5-4790k
    • AMD R390 GPU
    • 8 GB Ram

    I've updated the GPU and sound drivers and Windows is up to date.
     
    jaorg1234, May 22, 2020
    #4
Thema:

System interrupts causing high CPU usage

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