1. #1

    High DPC latency from NDIS.sys, storport.sys causing audio issues

    Hey so I'll run you through what I've done thus far for this issue. Out of the box I've had issues with audio latency and audio crackling and popping, with some slow video streaming maybe related. I Literally just opened a dell inspiron gaming 15. Specs here Imgur: The most awesome images on the Internet

    I've uninstalled and reinstalled every audio and network drive from the device manager I could, updated BIOS, reset computer, did a clean install of windows, tried disabling audio enhancements, and ran hardware diagnostics through dell BIOS. Still the same issue. I looked at event viewer and I keep getting a DistributedCOM error if that is related. Here's the errors on my event viewer in just the last couple days. Imgur: The most awesome images on the Internet

    Imgur: The most awesome images on the Internet, here are my most recent DPC latency tests.


    _________________________________________________________________________________________________________
    CONCLUSION
    _________________________________________________________________________________________________________
    Your system appears to be having trouble handling real-time audio and other tasks. You are likely to experience buffer underruns appearing as drop outs, clicks or pops. One or more DPC routines that belong to a driver running in your system appear to be executing for too long. At least one detected problem appears to be network related. In case you are using a WLAN adapter, try disabling it to get better results. One problem may be related to power management, disable CPU throttling settings in Control Panel and BIOS setup. Check for BIOS updates.
    LatencyMon has been analyzing your system for 0:58:26 (h:mm:ss) on all processors.




    _________________________________________________________________________________________________________
    SYSTEM INFORMATION
    _________________________________________________________________________________________________________
    Computer name: DESKTOP-9TLBMDN
    OS version: Windows 10 , 10.0, build: 15063 (x64)
    Hardware: Inspiron 15 7000 Gaming, Dell Inc., 065C71
    CPU: GenuineIntel Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz
    Logical processors: 8
    Processor groups: 1
    RAM: 16250 MB total




    _________________________________________________________________________________________________________
    CPU SPEED
    _________________________________________________________________________________________________________
    Reported CPU speed: 2808 MHz


    Note: reported execution times may be calculated based on a fixed reported CPU speed. Disable variable speed settings like Intel Speed Step and AMD Cool N Quiet in the BIOS setup for more accurate results.




    _________________________________________________________________________________________________________
    MEASURED INTERRUPT TO USER PROCESS LATENCIES
    _________________________________________________________________________________________________________
    The interrupt to process latency reflects the measured interval that a usermode process needed to respond to a hardware request from the moment the interrupt service routine started execution. This includes the scheduling and execution of a DPC routine, the signaling of an event and the waking up of a usermode thread from an idle wait state in response to that event.


    Highest measured interrupt to process latency (s): 8657.314045
    Average measured interrupt to process latency (s): 9.710951


    Highest measured interrupt to DPC latency (s): 8640.174459
    Average measured interrupt to DPC latency (s): 3.151529




    _________________________________________________________________________________________________________
    REPORTED ISRs
    _________________________________________________________________________________________________________
    Interrupt service routines are routines installed by the OS and device drivers that execute in response to a hardware interrupt signal.


    Highest ISR routine execution time (s): 303.608618
    Driver with highest ISR routine execution time: HDAudBus.sys - High Definition Audio Bus Driver, Microsoft Corporation


    Highest reported total ISR routine time (%): 0.051559
    Driver with highest ISR total time: HDAudBus.sys - High Definition Audio Bus Driver, Microsoft Corporation


    Total time spent in ISRs (%) 0.099580


    ISR count (execution time <250 s): 2983488
    ISR count (execution time 250-500 s): 0
    ISR count (execution time 500-999 s): 13
    ISR count (execution time 1000-1999 s): 0
    ISR count (execution time 2000-3999 s): 0
    ISR count (execution time >=4000 s): 0




    _________________________________________________________________________________________________________
    REPORTED DPCs
    _________________________________________________________________________________________________________
    DPC routines are part of the interrupt servicing dispatch mechanism and disable the possibility for a process to utilize the CPU while it is interrupted until the DPC has finished execution.


    Highest DPC routine execution time (s): 4082.277422
    Driver with highest DPC routine execution time: storport.sys - Microsoft Storage Port Driver, Microsoft Corporation


    Highest reported total DPC routine time (%): 0.050380
    Driver with highest DPC total execution time: rspLLL64.sys - Resplendence Latency Monitoring and Auxiliary Kernel Library, Resplendence Software Projects Sp.


    Total time spent in DPCs (%) 0.235143


    DPC count (execution time <250 s): 12933252
    DPC count (execution time 250-500 s): 0
    DPC count (execution time 500-999 s): 9235
    DPC count (execution time 1000-1999 s): 71
    DPC count (execution time 2000-3999 s): 6
    DPC count (execution time >=4000 s): 0




    _________________________________________________________________________________________________________
    REPORTED HARD PAGEFAULTS
    _________________________________________________________________________________________________________
    Hard pagefaults are events that get triggered by making use of virtual memory that is not resident in RAM but backed by a memory mapped file on disk. The process of resolving the hard pagefault requires reading in the memory from disk while the process is interrupted and blocked from execution.




    Process with highest pagefault count: none


    Total number of hard pagefaults 0
    Hard pagefault count of hardest hit process: 0
    Highest hard pagefault resolution time (s): 0.0
    Total time spent in hard pagefaults (%): 0.0
    Number of processes hit: 0




    _________________________________________________________________________________________________________
    PER CPU DATA
    _________________________________________________________________________________________________________
    CPU 0 Interrupt cycle time (s): 258.286669
    CPU 0 ISR highest execution time (s): 289.568732
    CPU 0 ISR total execution time (s): 26.251478
    CPU 0 ISR count: 2841138
    CPU 0 DPC highest execution time (s): 2658.370014
    CPU 0 DPC total execution time (s): 43.164898
    CPU 0 DPC count: 11393392
    _________________________________________________________________________________________________________
    CPU 1 Interrupt cycle time (s): 176.846949
    CPU 1 ISR highest execution time (s): 303.608618
    CPU 1 ISR total execution time (s): 1.568839
    CPU 1 ISR count: 132030
    CPU 1 DPC highest execution time (s): 3480.796652
    CPU 1 DPC total execution time (s): 2.763163
    CPU 1 DPC count: 160149
    _________________________________________________________________________________________________________
    CPU 2 Interrupt cycle time (s): 121.335504
    CPU 2 ISR highest execution time (s): 173.743590
    CPU 2 ISR total execution time (s): 0.107933
    CPU 2 ISR count: 9767
    CPU 2 DPC highest execution time (s): 800.752849
    CPU 2 DPC total execution time (s): 4.385037
    CPU 2 DPC count: 325794
    _________________________________________________________________________________________________________
    CPU 3 Interrupt cycle time (s): 179.416298
    CPU 3 ISR highest execution time (s): 85.181980
    CPU 3 ISR total execution time (s): 0.005293
    CPU 3 ISR count: 566
    CPU 3 DPC highest execution time (s): 698.595442
    CPU 3 DPC total execution time (s): 1.361091
    CPU 3 DPC count: 88041
    _________________________________________________________________________________________________________
    CPU 4 Interrupt cycle time (s): 111.209917
    CPU 4 ISR highest execution time (s): 0.0
    CPU 4 ISR total execution time (s): 0.0
    CPU 4 ISR count: 0
    CPU 4 DPC highest execution time (s): 4082.277422
    CPU 4 DPC total execution time (s): 5.259498
    CPU 4 DPC count: 399698
    _________________________________________________________________________________________________________
    CPU 5 Interrupt cycle time (s): 186.456057
    CPU 5 ISR highest execution time (s): 0.0
    CPU 5 ISR total execution time (s): 0.0
    CPU 5 ISR count: 0
    CPU 5 DPC highest execution time (s): 3776.739316
    CPU 5 DPC total execution time (s): 1.903856
    CPU 5 DPC count: 122302
    _________________________________________________________________________________________________________
    CPU 6 Interrupt cycle time (s): 143.796209
    CPU 6 ISR highest execution time (s): 0.0
    CPU 6 ISR total execution time (s): 0.0
    CPU 6 ISR count: 0
    CPU 6 DPC highest execution time (s): 903.688034
    CPU 6 DPC total execution time (s): 5.341283
    CPU 6 DPC count: 355458
    _________________________________________________________________________________________________________
    CPU 7 Interrupt cycle time (s): 181.32990
    CPU 7 ISR highest execution time (s): 0.0
    CPU 7 ISR total execution time (s): 0.0
    CPU 7 ISR count: 0
    CPU 7 DPC highest execution time (s): 766.199786
    CPU 7 DPC total execution time (s): 1.782215
    CPU 7 DPC count: 97731
    _________________________________________________________________________________________________________










    This issue is making me lose my mind and I would love any help I could possibly get. Thanks so much.


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  2. #2
    writhziden's Avatar
    Join Date
    May 2012
    Location
    Colorado
    Posts
    2,328
    • specs System Specs
      • Manufacturer:
        Sony
      • Model Number:
        VPCF232FX/B
      • Motherboard:
        Sony Corporation VAIO
      • CPU:
      • Memory:
        8.00 GB Crucial CT2KIT51264BF1339 DDR3 1333
      • Graphics:
      • Sound Card:
        Realtek High Definition Audio/nVidia High Definition Audio
      • Hard Drives:
        TOSHIBA MK5061GSY 500 GB (465 GB actual)
      • Case:
        Laptop black matte case with backlit keyboard
      • Cooling:
        Air cooling via fan and heat exchanger heatsink
      • Display:
        Laptop display
      • Operating System:
        Windows 7 Home Premium 64 Bit

    Re: High DPC latency from NDIS.sys, storport.sys causing audio issues

    Since the latency issue appears to be storage related: Why does your storage show as being in a RAID configuration?

  3. #3

    Re: High DPC latency from NDIS.sys, storport.sys causing audio issues

    That's just how the computer came. Sorry, that was an old screenshot of my specs taken before I switched it over to AHCI in BIOS and then took these readings.
    High DPC latency from NDIS.sys, storport.sys causing audio issues-screenshot-4-jpg
    New Specs. Latency tests above were taken with SSD in AHCI config.

  4. #4
    writhziden's Avatar
    Join Date
    May 2012
    Location
    Colorado
    Posts
    2,328
    • specs System Specs
      • Manufacturer:
        Sony
      • Model Number:
        VPCF232FX/B
      • Motherboard:
        Sony Corporation VAIO
      • CPU:
      • Memory:
        8.00 GB Crucial CT2KIT51264BF1339 DDR3 1333
      • Graphics:
      • Sound Card:
        Realtek High Definition Audio/nVidia High Definition Audio
      • Hard Drives:
        TOSHIBA MK5061GSY 500 GB (465 GB actual)
      • Case:
        Laptop black matte case with backlit keyboard
      • Cooling:
        Air cooling via fan and heat exchanger heatsink
      • Display:
        Laptop display
      • Operating System:
        Windows 7 Home Premium 64 Bit

    Re: High DPC latency from NDIS.sys, storport.sys causing audio issues

    Please use the Windows Performance Analyzer to provide us with your trace file. The trace file will probably be too large to upload here, so host it from a third party site like Dropbox or Microsoft OneDrive.

    Windows 10 SDK - Windows app development

    How to Diagnose and Fix High DPC Latency Issues with WPA (Windows Vista/7/8) (similar steps can be used with the Windows 10 WPA)

  5. #5

    Re: High DPC latency from NDIS.sys, storport.sys causing audio issues

    here you go, I captured it when I got a few audio pops but it wasn't as severe as it can get. Thanks so much for all the help!!

    https://1drv.ms/u/s!AiKn-ryrDxOTjAnPxDbZnYlFrTUf

  6. #6
    writhziden's Avatar
    Join Date
    May 2012
    Location
    Colorado
    Posts
    2,328
    • specs System Specs
      • Manufacturer:
        Sony
      • Model Number:
        VPCF232FX/B
      • Motherboard:
        Sony Corporation VAIO
      • CPU:
      • Memory:
        8.00 GB Crucial CT2KIT51264BF1339 DDR3 1333
      • Graphics:
      • Sound Card:
        Realtek High Definition Audio/nVidia High Definition Audio
      • Hard Drives:
        TOSHIBA MK5061GSY 500 GB (465 GB actual)
      • Case:
        Laptop black matte case with backlit keyboard
      • Cooling:
        Air cooling via fan and heat exchanger heatsink
      • Display:
        Laptop display
      • Operating System:
        Windows 7 Home Premium 64 Bit

    Re: High DPC latency from NDIS.sys, storport.sys causing audio issues

    Nothing too significant pops out. I would recommend checking your drives for errors since there were some IO spikes and a hard fault with your RAM that may suggest a paging issue to disk.



    I would also recommend updating your NVIDIA drivers and/or trying the drivers provided by Dell to see if that provides any help with the audio latency; I do see some display related latency that may or may not be a factor in your troubleshooting.



    Also check for any storage controller drivers provided by Dell in the above link. There may also be updates to your SSD firmware.


    Do the problems only occur when using Google Chrome, or do they occur with other tasks or other browsers?
    Last edited by writhziden; 07-18-2017 at 08:18 PM. Reason: SSD firmware updates?

  7. #7

    Re: High DPC latency from NDIS.sys, storport.sys causing audio issues

    It seems to be getting a lot better, there is still some very minor stuff but its only present in browsers. Spotify has no underruns whatsoever, no latency. Chrome and edge both seem to have latency.

  8. #8

    Re: High DPC latency from NDIS.sys, storport.sys causing audio issues

    it seems streaming video might be the issue. Hmmm weird. Updated video drivers.

  9. #9
    writhziden's Avatar
    Join Date
    May 2012
    Location
    Colorado
    Posts
    2,328
    • specs System Specs
      • Manufacturer:
        Sony
      • Model Number:
        VPCF232FX/B
      • Motherboard:
        Sony Corporation VAIO
      • CPU:
      • Memory:
        8.00 GB Crucial CT2KIT51264BF1339 DDR3 1333
      • Graphics:
      • Sound Card:
        Realtek High Definition Audio/nVidia High Definition Audio
      • Hard Drives:
        TOSHIBA MK5061GSY 500 GB (465 GB actual)
      • Case:
        Laptop black matte case with backlit keyboard
      • Cooling:
        Air cooling via fan and heat exchanger heatsink
      • Display:
        Laptop display
      • Operating System:
        Windows 7 Home Premium 64 Bit

    Re: High DPC latency from NDIS.sys, storport.sys causing audio issues

    Quote Originally Posted by Choicesb View Post
    it seems streaming video might be the issue. Hmmm weird. Updated video drivers.
    Let us know if things improve with the drivers.

    If that does not resolve the latency issue, I would also suggest checking the Dell driver support for any SSD firmware update(s) and the Intel Rapid Storage Technology Driver update(s). You'll find them under Serial ATA in the driver list.

  10. #10
    writhziden's Avatar
    Join Date
    May 2012
    Location
    Colorado
    Posts
    2,328
    • specs System Specs
      • Manufacturer:
        Sony
      • Model Number:
        VPCF232FX/B
      • Motherboard:
        Sony Corporation VAIO
      • CPU:
      • Memory:
        8.00 GB Crucial CT2KIT51264BF1339 DDR3 1333
      • Graphics:
      • Sound Card:
        Realtek High Definition Audio/nVidia High Definition Audio
      • Hard Drives:
        TOSHIBA MK5061GSY 500 GB (465 GB actual)
      • Case:
        Laptop black matte case with backlit keyboard
      • Cooling:
        Air cooling via fan and heat exchanger heatsink
      • Display:
        Laptop display
      • Operating System:
        Windows 7 Home Premium 64 Bit

    Re: High DPC latency from NDIS.sys, storport.sys causing audio issues

    Jak22099, your posts have been moved from this thread. I started a new thread for you to prevent confusion in this one. You can find your new thread here: https://www.sysnative.com/forums/win...g-latency.html
    I am only a volunteer helping users on the forums. Please wait 72 hours before double posting or PMing for help. I appreciate your patience. :-}

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