Windows 10: What is storport.sys? (DPC latency)

Discus and support What is storport.sys? (DPC latency) in Windows 10 Support to solve the problem; I have a Gigabyte Aero 15 X9 laptop. Due to quaratine, I have been using it more, and I have noticed that I have a problem with DPC latency. The... Discussion in 'Windows 10 Support' started by leftisthominid, May 6, 2020.

  1. What is storport.sys? (DPC latency)


    I have a Gigabyte Aero 15 X9 laptop.

    Due to quaratine, I have been using it more, and I have noticed that I have a problem with DPC latency. The general culprits are ndis.sys, nvlddmkm.sys, and ACPI.sys from latencymon.

    It seems to have been a one-off, but I got a spike from storport.sys of about 3000 microseconds. What is storport.sys? I have an NVME SSD, nothing SATA. I have tried having Windows update my NVMe controller and Microsoft Storage Spaces Controller, but it found nothing to update.

    :)
     
    leftisthominid, May 6, 2020
    #1

  2. DPC Latency with Storport.sys and Wdf0 1000.sys

    I have one Storage Controller here is what the Drivers say


    What is storport.sys? (DPC latency) [​IMG]
     
    BradShoemaker, May 6, 2020
    #2
  3. DPC Latency with Storport.sys and Wdf0 1000.sys

    Like this? It appears "Standard SATA AHCI Controller"


    What is storport.sys? (DPC latency) [​IMG]
     
    BradShoemaker, May 6, 2020
    #3
  4. arachnaut Win User

    What is storport.sys? (DPC latency)

    DPC Latency with Storport.sys and Wdf0 1000.sys

    I'm afraid it is not that easy - that is a special MS port for Storage Spaces.
    You need to open the CPU branch and look at each port:

    What is storport.sys? (DPC latency) [​IMG]
     
    arachnaut, May 6, 2020
    #4
Thema:

What is storport.sys? (DPC latency)

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