High Latency on Wdf01000.sys driver causing Real Time Audio Playback issues

Anonymous
2022-12-20T11:06:29+00:00

Hi

I have ran Latency Mon as I am getting issues when using using my Traktor Kontrol s3 DJ controller causing real time audio play back issues and the above driver is reporting Highest execution of over 5.83 which appears to be causing the audio issues - have you any advice on what I can do to improve this?

Windows/drivers/BIOS are all up to date

Info below

SYSTEM INFORMATION

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Computer name: LAPTOP-RP5HJ9VC

OS version: Windows 11, 10.0, version 2009, build: 22621 (x64)

Hardware: 81NC, LENOVO

BIOS: AMCN25WW(V1.08)

CPU: AuthenticAMD AMD Ryzen 7 3700U with Radeon Vega Mobile Gfx

Logical processors: 8

Processor groups: 1

Processor group size: 8

RAM: 6082 MB total

CPU SPEED

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Reported CPU speed (WMI): 230 MHz

Reported CPU speed (registry): 2296 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.

Windows 11 Version 22H2 (OS Build 22621.963)

I am not aware of any changes prior to my my issue

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CONCLUSION

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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. 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 0:09:40 (h:mm:ss) on all processors.

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SYSTEM INFORMATION

_________________________________________________________________________________________________________

Computer name: LAPTOP-RP5HJ9VC

OS version: Windows 11, 10.0, version 2009, build: 22621 (x64)

Hardware: 81NC, LENOVO

BIOS: AMCN25WW(V1.08)

CPU: AuthenticAMD AMD Ryzen 7 3700U with Radeon Vega Mobile Gfx

Logical processors: 8

Processor groups: 1

Processor group size: 8

RAM: 6082 MB total

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CPU SPEED

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Reported CPU speed (WMI): 230 MHz

Reported CPU speed (registry): 2296 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.

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MEASURED INTERRUPT TO USER PROCESS LATENCIES

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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): 418.20

Average measured interrupt to process latency (µs): 18.544421

Highest measured interrupt to DPC latency (µs): 399.30

Average measured interrupt to DPC latency (µs): 5.148406

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REPORTED ISRs

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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): 72.415941

Driver with highest ISR routine execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation

Highest reported total ISR routine time (%): 0.008239

Driver with highest ISR total time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation

Total time spent in ISRs (%) 0.008239

ISR count (execution time <250 µs): 68316

ISR count (execution time 250-500 µs): 0

ISR count (execution time 500-1000 µs): 0

ISR count (execution time 1000-2000 µs): 0

ISR count (execution time 2000-4000 µs): 0

ISR count (execution time >=4000 µs): 0

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REPORTED DPCs

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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): 5830.930749

Driver with highest DPC routine execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation

Highest reported total DPC routine time (%): 0.116586

Driver with highest DPC total execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation

Total time spent in DPCs (%) 0.246767

DPC count (execution time <250 µs): 537267

DPC count (execution time 250-500 µs): 0

DPC count (execution time 500-10000 µs): 210

DPC count (execution time 1000-2000 µs): 1

DPC count (execution time 2000-4000 µs): 1

DPC count (execution time >=4000 µs): 1

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REPORTED HARD PAGEFAULTS

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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: msmpeng.exe

Total number of hard pagefaults 49848

Hard pagefault count of hardest hit process: 23033

Number of processes hit: 76

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PER CPU DATA

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CPU 0 Interrupt cycle time (s): 29.199812

CPU 0 ISR highest execution time (µs): 72.415941

CPU 0 ISR total execution time (s): 0.382205

CPU 0 ISR count: 68295

CPU 0 DPC highest execution time (µs): 5830.930749

CPU 0 DPC total execution time (s): 9.460795

CPU 0 DPC count: 353658

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CPU 1 Interrupt cycle time (s): 3.327245

CPU 1 ISR highest execution time (µs): 12.952526

CPU 1 ISR total execution time (s): 0.000158

CPU 1 ISR count: 21

CPU 1 DPC highest execution time (µs): 199.577091

CPU 1 DPC total execution time (s): 0.131493

CPU 1 DPC count: 16616

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CPU 2 Interrupt cycle time (s): 5.915394

CPU 2 ISR highest execution time (µs): 0.0

CPU 2 ISR total execution time (s): 0.0

CPU 2 ISR count: 0

CPU 2 DPC highest execution time (µs): 653.486498

CPU 2 DPC total execution time (s): 0.450144

CPU 2 DPC count: 39039

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CPU 3 Interrupt cycle time (s): 3.192211

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): 76.172474

CPU 3 DPC total execution time (s): 0.154109

CPU 3 DPC count: 17995

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CPU 4 Interrupt cycle time (s): 5.699611

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): 223.598868

CPU 4 DPC total execution time (s): 0.369758

CPU 4 DPC count: 30900

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CPU 5 Interrupt cycle time (s): 4.162972

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): 127.471690

CPU 5 DPC total execution time (s): 0.233076

CPU 5 DPC count: 26874

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CPU 6 Interrupt cycle time (s): 4.355492

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): 195.680314

CPU 6 DPC total execution time (s): 0.374942

CPU 6 DPC count: 31047

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CPU 7 Interrupt cycle time (s): 3.526148

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): 570.812718

CPU 7 DPC total execution time (s): 0.277543

CPU 7 DPC count: 21351

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Windows for home | Windows 11 | Performance and system failures

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  1. Anonymous
    2025-02-03T01:37:41+00:00

    Chiming in to say that, after months of searching for a solution, this suggested NVidia settings tweak mentioned above was *finally* the fix for me as well: Nvidia Control Panel -> Manage 3D Settings, and setting Low Latency Mode to "Ultra", and Power Management Mode to "Prefer Maximum Performance".

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  2. Anonymous
    2023-12-04T23:23:30+00:00

    I am working with the tech team at Focusrite.

    We still have the issue.

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  3. Anonymous
    2023-11-27T22:44:19+00:00

    same issue clean installation 840 g8 i5 11gen 32 gb ram ssd nve... its a real shame to get to change this Wdf01000.sys processor affinity to work decently

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  4. Anonymous
    2023-11-27T22:34:43+00:00

    microsoft windows is a disaster why I am searching for answers for a new system with a lot o errors.

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  5. Anonymous
    2023-10-09T07:10:28+00:00

    Microsoft have techs? They certainly don't appear to be making much of an impact here.

    Good luck if you go MAC, I have spent to much of my life working with MS PC's to change.

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