Question ndis.sys & nvlddmkm.sys - DPC exception causing severe latency

Mazzimo

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I'm a Windows 11 user, since the most recent update, along with Nvidia's new update that released June 15th, I've been experiencing severe latency and lag- especially whilst in online games. Also keyboard stuttering, I've reset and reverted to regular Windows version to no avail. Updated all drivers possible. Reverted ones of concern.
Below is info from LatencyMon;

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.



https://ibb.co/RQz7D2N
 
Last edited:

Colif

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see if this helps
  1. right click desktop
  2. choose show more options
  3. Nvidia control panel
  4. Manage 3d settings
  5. Scroll down right hand screen to Power Management Mode
  6. Set it to Prefer Maximum Power
  7. save changes
video might help
 
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Mazzimo

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Nov 21, 2013
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see if this helps
  1. right click desktop
  2. choose show more options
  3. Nvidia control panel
  4. Manage 3d settings
  5. Scroll down right hand screen to Power Management Mode
  6. Set it to Prefer Maximum Power
  7. save changes
video might help
Thank you for the reply!
I've done so and haven't seen changes yet. I'll check the video though.
 

Mazzimo

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Slightly lower reading, but awful keyboard stuttering
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.

https://ibb.co/RQz7D2N
 
Last edited:

Colif

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So you on the rtm version?
Did you post about the problem on the insiders forum as things like this are why Insiders exists, so problems can be identified before release.

Its likely others have same problem.
which build of win 11

  1. right click start
  2. choose run...
  3. type winver and press enter
  4. My current build is 22000.739 but I know Insiders is different?
 

Mazzimo

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Hey sir, we've got the same version code. I've reinstalled Windows again and slowly updated all its drivers - although the issue persists, I did post to insiders forum with no relatable cases.

Issue has gotten more difficult to navigate through Windows. Gaming and productivity nearly impossible

[URL unfurl="true"]https://ibb.co/Rb8M6h5[/URL]
 
Last edited:

Colif

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ntoskrnl = windows kernel. Its unlikely to be cause, though it often gets blamed for errors. Mainly as its involved in almost every operation of the PC. Its probably a driver to blame.

what are specs of the PC?
latest chipset drivers?
 
Last edited:
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I'm getting similar issues with my system also



This is a fresh installation of Windows 11, build 22000.856

I've tried the following:

  • Set power to high performance mode
  • Disabled onboard audio & wifi in the bios
  • Reinstalling NVIDIA drivers through the geforce experience, both game-ready and studio

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 0:04:02 (h🇲🇲ss) on all processors.


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SYSTEM INFORMATION
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Computer name: LUKE-PC
OS version: Windows 11, 10.0, version 2009, build: 22000 (x64)
Hardware: Z390 DESIGNARE, Gigabyte Technology Co., Ltd.
BIOS: F9
CPU: GenuineIntel Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz
Logical processors: 16
Processor groups: 1
Processor group size: 16
RAM: 32630 MB total


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CPU SPEED
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Reported CPU speed (WMI): 360 MHz
Reported CPU speed (registry): 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.


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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): 14607.0
Average measured interrupt to process latency (µs): 15.584596

Highest measured interrupt to DPC latency (µs): 14604.30
Average measured interrupt to DPC latency (µs): 12.352655


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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): 118.223333
Driver with highest ISR routine execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation

Highest reported total ISR routine time (%): 0.001713
Driver with highest ISR total time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation

Total time spent in ISRs (%) 0.001713

ISR count (execution time <250 µs): 66112
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): 1942.404444
Driver with highest DPC routine execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 516.94 , NVIDIA Corporation

Highest reported total DPC routine time (%): 0.020555
Driver with highest DPC total execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation

Total time spent in DPCs (%) 0.061993

DPC count (execution time <250 µs): 225223
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-10000 µs): 152
DPC count (execution time 1000-2000 µs): 7
DPC count (execution time 2000-4000 µs): 0
DPC count (execution time >=4000 µs): 0


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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 622
Hard pagefault count of hardest hit process: 125
Number of processes hit: 29


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PER CPU DATA
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CPU 0 Interrupt cycle time (s): 7.205096
CPU 0 ISR highest execution time (µs): 118.223333
CPU 0 ISR total execution time (s): 0.066352
CPU 0 ISR count: 66112
CPU 0 DPC highest execution time (µs): 1942.404444
CPU 0 DPC total execution time (s): 2.251743
CPU 0 DPC count: 200802
_
CPU 1 Interrupt cycle time (s): 0.286504
CPU 1 ISR highest execution time (µs): 0.0
CPU 1 ISR total execution time (s): 0.0
CPU 1 ISR count: 0
CPU 1 DPC highest execution time (µs): 63.262778
CPU 1 DPC total execution time (s): 0.003358
CPU 1 DPC count: 832
_
CPU 2 Interrupt cycle time (s): 0.722162
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): 376.265556
CPU 2 DPC total execution time (s): 0.073818
CPU 2 DPC count: 10000
_
CPU 3 Interrupt cycle time (s): 0.290657
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): 45.470
CPU 3 DPC total execution time (s): 0.003508
CPU 3 DPC count: 703
_
CPU 4 Interrupt cycle time (s): 0.503655
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): 88.396111
CPU 4 DPC total execution time (s): 0.017133
CPU 4 DPC count: 3341
_
CPU 5 Interrupt cycle time (s): 0.272908
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): 41.743889
CPU 5 DPC total execution time (s): 0.001701
CPU 5 DPC count: 304
_
CPU 6 Interrupt cycle time (s): 0.414402
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): 376.646111
CPU 6 DPC total execution time (s): 0.010197
CPU 6 DPC count: 1965
_
CPU 7 Interrupt cycle time (s): 0.354692
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): 62.744444
CPU 7 DPC total execution time (s): 0.002937
CPU 7 DPC count: 471
_
CPU 8 Interrupt cycle time (s): 0.406060
CPU 8 ISR highest execution time (µs): 0.0
CPU 8 ISR total execution time (s): 0.0
CPU 8 ISR count: 0
CPU 8 DPC highest execution time (µs): 84.4250
CPU 8 DPC total execution time (s): 0.006884
CPU 8 DPC count: 1479
_
CPU 9 Interrupt cycle time (s): 0.292163
CPU 9 ISR highest execution time (µs): 0.0
CPU 9 ISR total execution time (s): 0.0
CPU 9 ISR count: 0
CPU 9 DPC highest execution time (µs): 53.614444
CPU 9 DPC total execution time (s): 0.001081
CPU 9 DPC count: 231
_
CPU 10 Interrupt cycle time (s): 0.375734
CPU 10 ISR highest execution time (µs): 0.0
CPU 10 ISR total execution time (s): 0.0
CPU 10 ISR count: 0
CPU 10 DPC highest execution time (µs): 93.336667
CPU 10 DPC total execution time (s): 0.004743
CPU 10 DPC count: 997
_
CPU 11 Interrupt cycle time (s): 0.218088
CPU 11 ISR highest execution time (µs): 0.0
CPU 11 ISR total execution time (s): 0.0
CPU 11 ISR count: 0
CPU 11 DPC highest execution time (µs): 345.411111
CPU 11 DPC total execution time (s): 0.001883
CPU 11 DPC count: 261
_
CPU 12 Interrupt cycle time (s): 0.366573
CPU 12 ISR highest execution time (µs): 0.0
CPU 12 ISR total execution time (s): 0.0
CPU 12 ISR count: 0
CPU 12 DPC highest execution time (µs): 83.841111
CPU 12 DPC total execution time (s): 0.014868
CPU 12 DPC count: 2680
_
CPU 13 Interrupt cycle time (s): 0.260754
CPU 13 ISR highest execution time (µs): 0.0
CPU 13 ISR total execution time (s): 0.0
CPU 13 ISR count: 0
CPU 13 DPC highest execution time (µs): 44.847222
CPU 13 DPC total execution time (s): 0.000708
CPU 13 DPC count: 112
_
CPU 14 Interrupt cycle time (s): 0.365882
CPU 14 ISR highest execution time (µs): 0.0
CPU 14 ISR total execution time (s): 0.0
CPU 14 ISR count: 0
CPU 14 DPC highest execution time (µs): 73.653889
CPU 14 DPC total execution time (s): 0.005681
CPU 14 DPC count: 1034
_
CPU 15 Interrupt cycle time (s): 0.214438
CPU 15 ISR highest execution time (µs): 0.0
CPU 15 ISR total execution time (s): 0.0
CPU 15 ISR count: 0
CPU 15 DPC highest execution time (µs): 78.587222
CPU 15 DPC total execution time (s): 0.001194
CPU 15 DPC count: 170
_
 

Colif

Win 11 Master
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@l4ke90 can you start own thread and I help you where I can.

Often updating sound, lan, or GPU drivers can help.
Updating BIOS as well.

I don't like commenting on these posts as I had/have a latency issue and everytime I think its fixed I comment on a thread like this and it happens again (fingers crossed).
 

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