Windows 10: DPC Latency - Hard pagefaults - Driver errors

Discus and support DPC Latency - Hard pagefaults - Driver errors in Windows 10 BSOD Crashes and Debugging to solve the problem; Hello I have been experiencing audio pops, drop outs from any application as well as lagging speeds whilst performing simple tasks. such as transfering... Discussion in 'Windows 10 BSOD Crashes and Debugging' started by NicolasHaquin, Jan 7, 2021.

  1. NICOLASHAQUIN
    NicolasHaquin Win User

    DPC Latency - Hard pagefaults - Driver errors


    Hello I have been experiencing audio pops, drop outs from any application as well as lagging speeds whilst performing simple tasks. such as transfering a small file from one place to another


    Hopefully someone can help out, this problem has been going for a couple of months now!


    I use a Focusrite Clarett4PreUSB audio interface which runs fine with my macbook and have been through all the technical help steps focusrite support could provide already.


    Here are the results from a Latency Mon test:


    _________________________________________________________________________________________________________

    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. 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 0:26:31 h:mm:ss on all processors.

    _________________________________________________________________________________________________________

    SYSTEM INFORMATION

    _________________________________________________________________________________________________________

    Computer name: DESKTOP-T33EE6H

    OS version: Windows 10, 10.0, version 2009, build: 19042 x64

    Hardware: Z390 UD, Gigabyte Technology Co., Ltd.

    CPU: GenuineIntel IntelR CoreTM i7-9700K CPU @ 3.60GHz

    Logical processors: 8

    Processor groups: 1

    RAM: 16314 MB total





    _________________________________________________________________________________________________________

    CPU SPEED

    _________________________________________________________________________________________________________

    Reported CPU speed: 360 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: 1233.40

    Average measured interrupt to process latency µs: 3.688350



    Highest measured interrupt to DPC latency µs: 1210.30

    Average measured interrupt to DPC latency µs: 1.585657





    _________________________________________________________________________________________________________

    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: 340.790

    Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation



    Highest reported total ISR routine time %: 0.102389

    Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation



    Total time spent in ISRs % 0.104461



    ISR count execution time <250 µs: 610779

    ISR count execution time 250-500 µs: 0

    ISR count execution time 500-1000 µs: 18

    ISR count execution time 1000-2000 µs: 0

    ISR count execution time 2000-4000 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: 2183.281667

    Driver with highest DPC routine execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 460.89 , NVIDIA Corporation



    Highest reported total DPC routine time %: 0.095669

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



    Total time spent in DPCs % 0.184010



    DPC count execution time <250 µs: 4601294

    DPC count execution time 250-500 µs: 0

    DPC count execution time 500-10000 µs: 3033

    DPC count execution time 1000-2000 µs: 16

    DPC count execution time 2000-4000 µs: 1

    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: ableton index.exe



    Total number of hard pagefaults 90252

    Hard pagefault count of hardest hit process: 36346

    Number of processes hit: 77





    _________________________________________________________________________________________________________

    PER CPU DATA

    _________________________________________________________________________________________________________

    CPU 0 Interrupt cycle time s: 87.359210

    CPU 0 ISR highest execution time µs: 340.790

    CPU 0 ISR total execution time s: 13.180104

    CPU 0 ISR count: 604037

    CPU 0 DPC highest execution time µs: 2183.281667

    CPU 0 DPC total execution time s: 22.736390

    CPU 0 DPC count: 4458528

    _________________________________________________________________________________________________________

    CPU 1 Interrupt cycle time s: 35.053650

    CPU 1 ISR highest execution time µs: 264.378333

    CPU 1 ISR total execution time s: 0.122063

    CPU 1 ISR count: 6760

    CPU 1 DPC highest execution time µs: 304.736667

    CPU 1 DPC total execution time s: 0.416349

    CPU 1 DPC count: 75342

    _________________________________________________________________________________________________________

    CPU 2 Interrupt cycle time s: 38.345783

    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: 164.820556

    CPU 2 DPC total execution time s: 0.077217

    CPU 2 DPC count: 18728

    _________________________________________________________________________________________________________

    CPU 3 Interrupt cycle time s: 30.988953

    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: 189.638333

    CPU 3 DPC total execution time s: 0.054166

    CPU 3 DPC count: 14477

    _________________________________________________________________________________________________________

    CPU 4 Interrupt cycle time s: 28.483644

    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: 161.503889

    CPU 4 DPC total execution time s: 0.043427

    CPU 4 DPC count: 9817

    _________________________________________________________________________________________________________

    CPU 5 Interrupt cycle time s: 26.400134

    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: 122.7350

    CPU 5 DPC total execution time s: 0.038478

    CPU 5 DPC count: 11557

    _________________________________________________________________________________________________________

    CPU 6 Interrupt cycle time s: 26.642325

    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: 191.718889

    CPU 6 DPC total execution time s: 0.031024

    CPU 6 DPC count: 7916

    _________________________________________________________________________________________________________

    CPU 7 Interrupt cycle time s: 26.867935

    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: 119.570

    CPU 7 DPC total execution time s: 0.035063

    CPU 7 DPC count: 7979

    _________________________________________________________________________________________________________

    :)
     
    NicolasHaquin, Jan 7, 2021
    #1
  2. DEVONPOIRIER
    DevonPoirier Win User

    DPC Latency Caused by Many drivers.

    This is a very frustrating issue, and ive tried looking everywhere for fixes but cant find any. Here is some information below and i would appreciate any help. It causes many audio issues and can virtually not listen to any sort of audio.


    DPC Latency - Hard pagefaults - Driver errors [​IMG]



    DPC Latency - Hard pagefaults - Driver errors [​IMG]


    _________________________________________________________________________________________________________

    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): 11910.935290

    Average measured interrupt to process latency (µs): 27.132701

    Highest measured interrupt to DPC latency (µs): 11897.807078

    Average measured interrupt to DPC latency (µs): 17.903110

    _________________________________________________________________________________________________________

    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): 6102.975427

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

    Highest reported total ISR routine time (%): 0.025887

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

    Total time spent in ISRs (%) 0.033847

    ISR count (execution time <250 µs): 106699

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

    ISR count (execution time 500-999 µs): 7232

    ISR count (execution time 1000-1999 µs): 773

    ISR count (execution time 2000-3999 µs): 341

    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): 9528.724715

    Driver with highest DPC routine execution time: ACPI.sys - ACPI Driver for NT, Microsoft Corporation

    Highest reported total DPC routine time (%): 0.108837

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

    Total time spent in DPCs (%) 0.224935

    DPC count (execution time <250 µs): 2929387

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

    DPC count (execution time 500-999 µs): 16192

    DPC count (execution time 1000-1999 µs): 4882

    DPC count (execution time 2000-3999 µs): 5093

    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: chrome.exe

    Total number of hard pagefaults 5067

    Hard pagefault count of hardest hit process: 802

    Number of processes hit: 59

    _________________________________________________________________________________________________________

    PER CPU DATA

    _________________________________________________________________________________________________________

    CPU 0 Interrupt cycle time (s): 255.852555

    CPU 0 ISR highest execution time (µs): 6102.975427

    CPU 0 ISR total execution time (s): 8.056281

    CPU 0 ISR count: 109980

    CPU 0 DPC highest execution time (µs): 9528.724715

    CPU 0 DPC total execution time (s): 36.835079

    CPU 0 DPC count: 2066222

    _________________________________________________________________________________________________________

    CPU 1 Interrupt cycle time (s): 177.355297

    CPU 1 ISR highest execution time (µs): 2251.754986

    CPU 1 ISR total execution time (s): 0.461042

    CPU 1 ISR count: 3633

    CPU 1 DPC highest execution time (µs): 6272.425214

    CPU 1 DPC total execution time (s): 2.430036

    CPU 1 DPC count: 32164

    _________________________________________________________________________________________________________

    CPU 2 Interrupt cycle time (s): 142.480857

    CPU 2 ISR highest execution time (µs): 2247.901709

    CPU 2 ISR total execution time (s): 0.077677

    CPU 2 ISR count: 1278

    CPU 2 DPC highest execution time (µs): 4660.060897

    CPU 2 DPC total execution time (s): 7.944059

    CPU 2 DPC count: 544234

    _________________________________________________________________________________________________________

    CPU 3 Interrupt cycle time (s): 130.032397

    CPU 3 ISR highest execution time (µs): 1542.794516

    CPU 3 ISR total execution time (s): 0.018679

    CPU 3 ISR count: 172

    CPU 3 DPC highest execution time (µs): 3883.733262

    CPU 3 DPC total execution time (s): 0.922848

    CPU 3 DPC count: 54186

    _________________________________________________________________________________________________________

    CPU 4 Interrupt cycle time (s): 157.249216

    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): 3823.362536

    CPU 4 DPC total execution time (s): 1.570406

    CPU 4 DPC count: 44147

    _________________________________________________________________________________________________________

    CPU 5 Interrupt cycle time (s): 187.377882

    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): 2389.255698

    CPU 5 DPC total execution time (s): 2.543875

    CPU 5 DPC count: 92556

    _________________________________________________________________________________________________________

    CPU 6 Interrupt cycle time (s): 158.474224

    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): 3851.206197

    CPU 6 DPC total execution time (s): 2.662644

    CPU 6 DPC count: 64703

    _________________________________________________________________________________________________________

    CPU 7 Interrupt cycle time (s): 171.610420

    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): 3806.676638

    CPU 7 DPC total execution time (s): 2.334564

    CPU 7 DPC count: 57770

    _________________________________________________________________________________________________________
     
    DevonPoirier, Jan 7, 2021
    #2
  3. PLAYDISGAME
    Playdisgame Win User
    Wdf01000.sys Latency - Windows 10

    ***Update***

    I have removed the interface from the equation and Ableton live 9 for the past week. I am now only trying basics tasks like play audio from iTunes and have the browser open. However I am still experiencing latency from the same driver as well as some other
    Microsoft drivers.

    _________________________________________________________________________________________________________

    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): 573.955628

    Average measured interrupt to process latency (µs): 7.923096

    Highest measured interrupt to DPC latency (µs): 568.088961

    Average measured interrupt to DPC latency (µs): 3.138844

    _________________________________________________________________________________________________________

    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): 13956.344495

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

    Highest reported total ISR routine time (%): 0.016099

    Driver with highest ISR total time: ataport.SYS - ATAPI Driver Extension, Microsoft Corporation

    Total time spent in ISRs (%) 0.046577

    ISR count (execution time <250 µs): 192666

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

    ISR count (execution time 500-999 µs): 20

    ISR count (execution time 1000-1999 µs): 7

    ISR count (execution time 2000-3999 µs): 8

    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): 4336.411463

    Driver with highest DPC routine execution time: ataport.SYS - ATAPI Driver Extension, Microsoft Corporation

    Highest reported total DPC routine time (%): 0.227243

    Driver with highest DPC total execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

    Total time spent in DPCs (%) 0.695677

    DPC count (execution time <250 µs): 1609465

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

    DPC count (execution time 500-999 µs): 805

    DPC count (execution time 1000-1999 µs): 28

    DPC count (execution time 2000-3999 µs): 10

    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.

    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 (µs): 0.0

    Total time spent in hard pagefaults (%): 0.0

    Number of processes hit: 0
     
    Playdisgame, Jan 7, 2021
    #3
  4. BRENDENFANNING
    Brendenfanning Win User

    DPC Latency - Hard pagefaults - Driver errors

    DPC latency fixes?

    Over the last 3 weeks or so I've been having audio cracking and a sort of lag on screen for about a second or so, and this occurs every couple of minutes or so, is there any fixes to this issue? I've run LatencyMon and here's my results.

    _________________________________________________________________________________________________________

    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. 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 0:06:37 (h:mm:ss) on all processors.

    _________________________________________________________________________________________________________

    SYSTEM INFORMATION

    _________________________________________________________________________________________________________

    Computer name: DESKTOP-8DUG32T

    OS version: Windows 10 , 10.0, build: 18363 (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.

    WARNING: the CPU speed that was measured is only a fraction of the CPU speed reported. Your CPUs may be throttled back due to variable speed settings and thermal issues. It is suggested that you run a utility which reports your actual CPU frequency and temperature.

    _________________________________________________________________________________________________________

    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): 22650.50

    Average measured interrupt to process latency (µs): 4.664887

    Highest measured interrupt to DPC latency (µs): 22643.90

    Average measured interrupt to DPC latency (µs): 1.527655

    _________________________________________________________________________________________________________

    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): 300.815171

    Driver with highest ISR routine execution time: ACPI.sys - ACPI Driver for NT, Microsoft Corporation

    Highest reported total ISR routine time (%): 0.004493

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

    Total time spent in ISRs (%) 0.008167

    ISR count (execution time <250 µs): 69601

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

    ISR count (execution time 500-999 µs): 1

    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): 22642.218661

    Driver with highest DPC routine execution time: DDDriver64Dcsa.sys - Dell Diags Universal Device Driver, Dell Inc.

    Highest reported total DPC routine time (%): 0.068610

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

    Total time spent in DPCs (%) 0.160212

    DPC count (execution time <250 µs): 889230

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

    DPC count (execution time 500-999 µs): 829

    DPC count (execution time 1000-1999 µs): 117

    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: taskhostw.exe

    Total number of hard pagefaults 1451

    Hard pagefault count of hardest hit process: 524

    Number of processes hit: 26

    _________________________________________________________________________________________________________

    PER CPU DATA

    _________________________________________________________________________________________________________

    CPU 0 Interrupt cycle time (s): 19.342088

    CPU 0 ISR highest execution time (µs): 300.815171

    CPU 0 ISR total execution time (s): 0.255173

    CPU 0 ISR count: 68383

    CPU 0 DPC highest execution time (µs): 22642.218661

    CPU 0 DPC total execution time (s): 4.688022

    CPU 0 DPC count: 849595

    _________________________________________________________________________________________________________

    CPU 1 Interrupt cycle time (s): 11.634505

    CPU 1 ISR highest execution time (µs): 57.398860

    CPU 1 ISR total execution time (s): 0.003583

    CPU 1 ISR count: 1200

    CPU 1 DPC highest execution time (µs): 503.543091

    CPU 1 DPC total execution time (s): 0.135005

    CPU 1 DPC count: 7227

    _________________________________________________________________________________________________________

    CPU 2 Interrupt cycle time (s): 11.290806

    CPU 2 ISR highest execution time (µs): 57.811966

    CPU 2 ISR total execution time (s): 0.000640

    CPU 2 ISR count: 19

    CPU 2 DPC highest execution time (µs): 736.399929

    CPU 2 DPC total execution time (s): 0.085352

    CPU 2 DPC count: 10417

    _________________________________________________________________________________________________________

    CPU 3 Interrupt cycle time (s): 14.683743

    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): 182.158120

    CPU 3 DPC total execution time (s): 0.023173

    CPU 3 DPC count: 3533

    _________________________________________________________________________________________________________

    CPU 4 Interrupt cycle time (s): 11.120855

    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): 531.179131

    CPU 4 DPC total execution time (s): 0.055886

    CPU 4 DPC count: 7139

    _________________________________________________________________________________________________________

    CPU 5 Interrupt cycle time (s): 14.322360

    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): 240.635684

    CPU 5 DPC total execution time (s): 0.020023

    CPU 5 DPC count: 2435

    _________________________________________________________________________________________________________

    CPU 6 Interrupt cycle time (s): 10.206137

    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): 367.273504

    CPU 6 DPC total execution time (s): 0.059569

    CPU 6 DPC count: 7343

    _________________________________________________________________________________________________________

    CPU 7 Interrupt cycle time (s): 12.767317

    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): 175.404558

    CPU 7 DPC total execution time (s): 0.021495

    CPU 7 DPC count: 2499

    _________________________________________________________________________________________________________
     
    Brendenfanning, Jan 7, 2021
    #4
Thema:

DPC Latency - Hard pagefaults - Driver errors

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    in Windows 10 Drivers and Hardware
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    in Windows 10 Customization
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  8. DPC Latency Caused by Many drivers.

    in Windows 10 Drivers and Hardware
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    in Windows 10 Drivers and Hardware
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    in Windows 10 Drivers and Hardware
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