Windows 10: Audio popping, ndis.sys may be culprit

Discus and support Audio popping, ndis.sys may be culprit in Windows 10 Drivers and Hardware to solve the problem; So I updated to windows 10 about 2 months ago (fresh install) everything worked great except occasional audio popping using USB headphones. I tried... Discussion in 'Windows 10 Drivers and Hardware' started by Kerf, Oct 19, 2015.

  1. Kerf Win User

    Audio popping, ndis.sys may be culprit


    So I updated to windows 10 about 2 months ago (fresh install) everything worked great except occasional audio popping using USB headphones. I tried several things to try and fix it, long story short, I downloaded LatencyMon and let it run for about an hour, When I came back I found latency spikes in ndis.sys that went up to about 1100 µs. Now I don't have a WLAN card so I am assuming this is my onboard network adapter. Tried updating to the latest driver from realtek, alas it did not fix it. Changed power settings to high, disabled audio enhancements. Tried several things that just don't seem to work. Any idea how I could fix this?

    Here is a copy of the LatencyMon Report

    ____________________________________________________________________________________________________ _____
    CONCLUSION
    ____________________________________________________________________________________________________ _____
    Your system seems to be having difficulty handling real-time audio and other tasks. You may experience drop outs, clicks or pops due to buffer underruns. 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 0:21:34 (h:mm:ss) on all processors.

    ____________________________________________________________________________________________________ _____
    SYSTEM INFORMATION
    ____________________________________________________________________________________________________ _____
    Computer name: BRIAN-PC
    OS version: Windows 8 , 6.2, build: 9200 (x64)
    Hardware: Studio XPS 435T/9000, DELL Inc., 0X501H
    CPU: GenuineIntel Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz
    Logical processors: 8
    Processor groups: 1
    RAM: 9206 MB total

    ____________________________________________________________________________________________________ _____
    CPU SPEED
    ____________________________________________________________________________________________________ _____
    Reported CPU speed: 2660 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 (µs): 808.807338
    Average measured interrupt to process latency (µs): 5.556328
    Highest measured interrupt to DPC latency (µs): 804.957708
    Average measured interrupt to DPC latency (µs): 1.281891

    ____________________________________________________________________________________________________ _____
    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 (µs): 143.469173
    Driver with highest ISR routine execution time: USBPORT.SYS - USB 1.1 & 2.0 Port Driver, Microsoft Corporation
    Highest reported total ISR routine time (%): 0.011379
    Driver with highest ISR total time: USBPORT.SYS - USB 1.1 & 2.0 Port Driver, Microsoft Corporation
    Total time spent in ISRs (%) 0.018181
    ISR count (execution time <250 µs): 442011
    ISR count (execution time 250-500 µs): 0
    ISR count (execution time 500-999 µs): 0
    ISR count (execution time 1000-1999 µs): 0
    ISR count (execution time 2000-3999 µs): 0
    ISR count (execution time >=4000 µs): 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 (µs): 1122.492857
    Driver with highest DPC routine execution time: ndis.sys - Network Driver Interface Specification (NDIS), Microsoft Corporation
    Highest reported total DPC routine time (%): 0.025255
    Driver with highest DPC total execution time: ndis.sys - Network Driver Interface Specification (NDIS), Microsoft Corporation
    Total time spent in DPCs (%) 0.16310
    DPC count (execution time <250 µs): 3518550
    DPC count (execution time 250-500 µs): 0
    DPC count (execution time 500-999 µs): 1723
    DPC count (execution time 1000-1999 µs): 5
    DPC count (execution time 2000-3999 µs): 0
    DPC count (execution time >=4000 µs): 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.
    NOTE: some processes were hit by hard pagefaults. If these were programs producing audio, they are likely to interrupt the audio stream resulting in dropouts, clicks and pops. Check the Processes tab to see which programs were hit.
    Process with highest pagefault count: svchost.exe
    Total number of hard pagefaults 10598
    Hard pagefault count of hardest hit process: 1781
    Highest hard pagefault resolution time (µs): 1942144.624436
    Total time spent in hard pagefaults (%): 1.237545
    Number of processes hit: 35

    ____________________________________________________________________________________________________ _____
    PER CPU DATA
    ____________________________________________________________________________________________________ _____
    CPU 0 Interrupt cycle time (s): 48.127456
    CPU 0 ISR highest execution time (µs): 143.469173
    CPU 0 ISR total execution time (s): 1.869203
    CPU 0 ISR count: 438970
    CPU 0 DPC highest execution time (µs): 1122.492857
    CPU 0 DPC total execution time (s): 13.475622
    CPU 0 DPC count: 3204172
    ____________________________________________________________________________________________________ _____
    CPU 1 Interrupt cycle time (s): 16.136941
    CPU 1 ISR highest execution time (µs): 114.496241
    CPU 1 ISR total execution time (s): 0.012819
    CPU 1 ISR count: 3007
    CPU 1 DPC highest execution time (µs): 225.310150
    CPU 1 DPC total execution time (s): 0.268959
    CPU 1 DPC count: 36996
    ____________________________________________________________________________________________________ _____
    CPU 2 Interrupt cycle time (s): 12.701617
    CPU 2 ISR highest execution time (µs): 9.246617
    CPU 2 ISR total execution time (s): 0.000150
    CPU 2 ISR count: 34
    CPU 2 DPC highest execution time (µs): 1074.455263
    CPU 2 DPC total execution time (s): 1.553876
    CPU 2 DPC count: 76813
    ____________________________________________________________________________________________________ _____
    CPU 3 Interrupt cycle time (s): 14.804265
    CPU 3 ISR highest execution time (µs): 0.0
    CPU 3 ISR total execution time (s): 0.0
    CPU 3 ISR count: 0
    CPU 3 DPC highest execution time (µs): 284.656015
    CPU 3 DPC total execution time (s): 0.159704
    CPU 3 DPC count: 28966
    ____________________________________________________________________________________________________ _____
    CPU 4 Interrupt cycle time (s): 9.466519
    CPU 4 ISR highest execution time (µs): 0.0
    CPU 4 ISR total execution time (s): 0.0
    CPU 4 ISR count: 0
    CPU 4 DPC highest execution time (µs): 440.396617
    CPU 4 DPC total execution time (s): 0.382942
    CPU 4 DPC count: 50958
    ____________________________________________________________________________________________________ _____
    CPU 5 Interrupt cycle time (s): 13.276617
    CPU 5 ISR highest execution time (µs): 0.0
    CPU 5 ISR total execution time (s): 0.0
    CPU 5 ISR count: 0
    CPU 5 DPC highest execution time (µs): 142.849624
    CPU 5 DPC total execution time (s): 0.20540
    CPU 5 DPC count: 31236
    ____________________________________________________________________________________________________ _____
    CPU 6 Interrupt cycle time (s): 9.362021
    CPU 6 ISR highest execution time (µs): 0.0
    CPU 6 ISR total execution time (s): 0.0
    CPU 6 ISR count: 0
    CPU 6 DPC highest execution time (µs): 438.967293
    CPU 6 DPC total execution time (s): 0.400190
    CPU 6 DPC count: 49605
    ____________________________________________________________________________________________________ _____
    CPU 7 Interrupt cycle time (s): 12.092388
    CPU 7 ISR highest execution time (µs): 0.0
    CPU 7 ISR total execution time (s): 0.0
    CPU 7 ISR count: 0
    CPU 7 DPC highest execution time (µs): 339.383835
    CPU 7 DPC total execution time (s): 0.437848
    CPU 7 DPC count: 41532

    :)
     
  2. Joel_832 Win User

    ndis.sys DPC latency creating audio stuttering issues

    Hello all,

    I'm running Windows 10 Home. This past couple day's I've started encountering audio stuttering/performance issues. Using LatencyMon I found the culprit to be ndis.sys (Highest reported DPC routine execution time: 83823μs).

    I've updated all my drivers (including that of my asus pce-n15 11n wireless lan) and checked power management, disk integrity, all to no effect. I ran a trace and looked at the Windows Performance Analzer results and NDIS.SYS is definitely the culprit. The
    latency problem disappears when the wifi is disconnected.

    Does anyone have any advice as to how to proceed?
     
    Joel_832, Oct 19, 2015
    #2
  3. Audio stutters when the Wireless LAN card is enabled, no matter what kind of program

    Absolutely. Every driver was uninstalled and reinstalled in a separate shut down and boot from each other and individually tested.

    I downloaded LatencyMon and it points at ndis.sys as the obvious culprit. ndis.sys does not show up as a problem while the WLAN card is disabled, in fact I have no problems.

    Here's the result of the windows performance recorder.

    Microsoft OneDrive - Access files anywhere. Create docs with free Office Online.
     
    BrienKunemund, Oct 19, 2015
    #3
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Audio popping, ndis.sys may be culprit

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