DPC Latency | Audio and video stutter

[Cosmin2]

Hi!
I have a very upsetting problem with my laptop. I have a high dpc latency and i use an external monitor via a vga-hdmi cable (but i used to have a hdmi-hdmi cable on another monitor and the problem still existed) and i like to play a relaxing game on one screen and watch an youtube video or a movie on the laptop screen. The problem is once in a while the audio and everything lags for a few seconds. It's very anoying...
I've had this problem since i got the laptop (second hand, but it was not used, it appeared to be new) and i thought it's just a windows problem and it would go away if i install a fresh windows, but it wasn't the case. The lag did appear on rarrer ocassions after the install.

I don't really care about the best latency, i don't use this laptop for audio production and professional stuff, but i want it to run good enough.

My laptop specs:

Processor AMD Ryzen 7 4800H with Radeon Graphics 2.90 GHz
Installed RAM 32.0 GB (31.4 GB usable) (i upgraded the ram from 2 stick of 4 to 2 sticks of 16 3200 mhz cl 22)

GTX 1650 TI 4GB

M.2 SSD intel 660p 512gb (the ssd it came with)

Adata su630 480gb (second drive installed by me)

Windows 10 pro 21h1 

What i tried so far:
-update every driver

-uninstalled drivers with ddu and installed them from hp site or manufacturer

-disabled things in device manager one by one (only one that seemed to do something was microsoft acpi, but it did disable my gpu and peripherals)

-fresh windows install

-use high performance in power options

I will add the latencymon report and i hope someone can help me.

Thanks in advance!

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CONCLUSION
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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 0:45:54 (h:mm:ss) on all processors.

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SYSTEM INFORMATION
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Computer name: DESKTOP-4RF7AAA
OS version: Windows 10, 10.0, version 2009, build: 19043 (x64)
Hardware: HP Pavilion Gaming Laptop 15-ec1xxx, HP
BIOS: F.25
CPU: AuthenticAMD AMD Ryzen 7 4800H with Radeon Graphics
Logical processors: 16
Processor groups: 1
Processor group size: 16
RAM: 32116 MB total

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CPU SPEED
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Reported CPU speed (WMI): 290 MHz
Reported CPU speed (registry): 2895 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): 628.30
Average measured interrupt to process latency (µs): 7.649751

Highest measured interrupt to DPC latency (µs): 621.50
Average measured interrupt to DPC latency (µs): 2.424419

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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): 110.520553
Driver with highest ISR routine execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation

Highest reported total ISR routine time (%): 0.000438
Driver with highest ISR total time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation

Total time spent in ISRs (%) 0.000495

ISR count (execution time <250 µs): 127815
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
_________________________________________________________________________________________________________
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): 1947.928497
Driver with highest DPC routine execution time: ndis.sys - Network Driver Interface Specification (NDIS), Microsoft Corporation

Highest reported total DPC routine time (%): 0.007772
Driver with highest DPC total execution time: ndis.sys - Network Driver Interface Specification (NDIS), Microsoft Corporation

Total time spent in DPCs (%) 0.040505

DPC count (execution time <250 µs): 2361019
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-10000 µs): 2701
DPC count (execution time 1000-2000 µs): 5
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 129055
Hard pagefault count of hardest hit process: 65247
Number of processes hit: 102

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PER CPU DATA
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CPU 0 Interrupt cycle time (s): 102.110261
CPU 0 ISR highest execution time (µs): 110.520553
CPU 0 ISR total execution time (s): 0.184525
CPU 0 ISR count: 92949
CPU 0 DPC highest execution time (µs): 1198.917098
CPU 0 DPC total execution time (s): 12.113207
CPU 0 DPC count: 1267091
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CPU 1 Interrupt cycle time (s): 51.404463
CPU 1 ISR highest execution time (µs): 29.150259
CPU 1 ISR total execution time (s): 0.006912
CPU 1 ISR count: 3316
CPU 1 DPC highest execution time (µs): 559.414508
CPU 1 DPC total execution time (s): 0.294153
CPU 1 DPC count: 38706
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CPU 2 Interrupt cycle time (s): 36.891018
CPU 2 ISR highest execution time (µs): 19.804145
CPU 2 ISR total execution time (s): 0.000832
CPU 2 ISR count: 375
CPU 2 DPC highest execution time (µs): 486.789292
CPU 2 DPC total execution time (s): 1.388849
CPU 2 DPC count: 247157
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CPU 3 Interrupt cycle time (s): 86.542491
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): 416.488083
CPU 3 DPC total execution time (s): 0.064661
CPU 3 DPC count: 17584
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CPU 4 Interrupt cycle time (s): 40.225830
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): 604.111572
CPU 4 DPC total execution time (s): 2.006932
CPU 4 DPC count: 432824
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CPU 5 Interrupt cycle time (s): 68.142881
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): 369.837651
CPU 5 DPC total execution time (s): 0.086494
CPU 5 DPC count: 26935
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CPU 6 Interrupt cycle time (s): 28.770832
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): 1947.928497
CPU 6 DPC total execution time (s): 1.146165
CPU 6 DPC count: 195129
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CPU 7 Interrupt cycle time (s): 41.802369
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): 190.207945
CPU 7 DPC total execution time (s): 0.047736
CPU 7 DPC count: 13788
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CPU 8 Interrupt cycle time (s): 12.639597
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): 562.129188
CPU 8 DPC total execution time (s): 0.172423
CPU 8 DPC count: 45791
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CPU 9 Interrupt cycle time (s): 11.388301
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): 185.630052
CPU 9 DPC total execution time (s): 0.061769
CPU 9 DPC count: 12436
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CPU 10 Interrupt cycle time (s): 14.703850
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): 354.571330
CPU 10 DPC total execution time (s): 0.151348
CPU 10 DPC count: 22302
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CPU 11 Interrupt cycle time (s): 13.259902
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): 233.362349
CPU 11 DPC total execution time (s): 0.032991
CPU 11 DPC count: 4643
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CPU 12 Interrupt cycle time (s): 13.239729
CPU 12 ISR highest execution time (µs): 19.834197
CPU 12 ISR total execution time (s): 0.014603
CPU 12 ISR count: 19745
CPU 12 DPC highest execution time (µs): 129.853886
CPU 12 DPC total execution time (s): 0.113958
CPU 12 DPC count: 16993
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CPU 13 Interrupt cycle time (s): 12.164419
CPU 13 ISR highest execution time (µs): 3.295682
CPU 13 ISR total execution time (s): 0.000345
CPU 13 ISR count: 371
CPU 13 DPC highest execution time (µs): 239.352677
CPU 13 DPC total execution time (s): 0.027945
CPU 13 DPC count: 4499
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CPU 14 Interrupt cycle time (s): 16.782119
CPU 14 ISR highest execution time (µs): 19.573748
CPU 14 ISR total execution time (s): 0.003814
CPU 14 ISR count: 4480
CPU 14 DPC highest execution time (µs): 207.577893
CPU 14 DPC total execution time (s): 0.082363
CPU 14 DPC count: 11613
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CPU 15 Interrupt cycle time (s): 17.933401
CPU 15 ISR highest execution time (µs): 28.439033
CPU 15 ISR total execution time (s): 0.007167
CPU 15 ISR count: 6579
CPU 15 DPC highest execution time (µs): 96.085665
CPU 15 DPC total execution time (s): 0.059697
CPU 15 DPC count: 6234
_________________________________________________________________________________________________________

[Cosmin2]

It happened again and and i had latencymon open so i am attaching the report

_________________________________________________________________________________________________________ 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 0:19:58 (h:mm:ss) on all processors. _________________________________________________________________________________________________________ SYSTEM INFORMATION _________________________________________________________________________________________________________ Computer name: DESKTOP-4RF7AAA OS version: Windows 10, 10.0, version 2009, build: 19043 (x64) Hardware: HP Pavilion Gaming Laptop 15-ec1xxx, HP BIOS: F.25 CPU: AuthenticAMD AMD Ryzen 7 4800H with Radeon Graphics Logical processors: 16 Processor groups: 1 Processor group size: 16 RAM: 32116 MB total _________________________________________________________________________________________________________ CPU SPEED _________________________________________________________________________________________________________ Reported CPU speed (WMI): 290 MHz Reported CPU speed (registry): 2895 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): 515.50 Average measured interrupt to process latency (µs): 8.111278 Highest measured interrupt to DPC latency (µs): 498.40 Average measured interrupt to DPC latency (µs): 3.116369 _________________________________________________________________________________________________________ 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): 623.665285 Driver with highest ISR routine execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation Highest reported total ISR routine time (%): 0.003138 Driver with highest ISR total time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation Total time spent in ISRs (%) 0.003256 ISR count (execution time <250 µs): 162147 ISR count (execution time 250-500 µs): 0 ISR count (execution time 500-1000 µs): 6 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): 72236.856304 Driver with highest DPC routine execution time: afd.sys - Ancillary Function Driver for WinSock, Microsoft Corporation Highest reported total DPC routine time (%): 0.030684 Driver with highest DPC total execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation Total time spent in DPCs (%) 0.085484 DPC count (execution time <250 µs): 2080104 DPC count (execution time 250-500 µs): 0 DPC count (execution time 500-10000 µs): 1328 DPC count (execution time 1000-2000 µs): 2 DPC count (execution time 2000-4000 µs): 0 DPC count (execution time >=4000 µs): 2 _________________________________________________________________________________________________________ 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: riotclientservices.exe Total number of hard pagefaults 51615 Hard pagefault count of hardest hit process: 18578 Number of processes hit: 78 _________________________________________________________________________________________________________ PER CPU DATA _________________________________________________________________________________________________________ CPU 0 Interrupt cycle time (s): 69.927855 CPU 0 ISR highest execution time (µs): 623.665285 CPU 0 ISR total execution time (s): 0.558020 CPU 0 ISR count: 120199 CPU 0 DPC highest execution time (µs): 72236.856304 CPU 0 DPC total execution time (s): 14.295250 CPU 0 DPC count: 1766534 _________________________________________________________________________________________________________ CPU 1 Interrupt cycle time (s): 21.584417 CPU 1 ISR highest execution time (µs): 81.109845 CPU 1 ISR total execution time (s): 0.036202 CPU 1 ISR count: 15150 CPU 1 DPC highest execution time (µs): 907.304318 CPU 1 DPC total execution time (s): 0.863762 CPU 1 DPC count: 50536 _________________________________________________________________________________________________________ CPU 2 Interrupt cycle time (s): 12.654386 CPU 2 ISR highest execution time (µs): 31.985147 CPU 2 ISR total execution time (s): 0.005227 CPU 2 ISR count: 1083 CPU 2 DPC highest execution time (µs): 558.242487 CPU 2 DPC total execution time (s): 0.25720 CPU 2 DPC count: 61342 _________________________________________________________________________________________________________ CPU 3 Interrupt cycle time (s): 21.698010 CPU 3 ISR highest execution time (µs): 7.813472 CPU 3 ISR total execution time (s): 0.000070 CPU 3 ISR count: 12 CPU 3 DPC highest execution time (µs): 504.549914 CPU 3 DPC total execution time (s): 0.037863 CPU 3 DPC count: 10317 _________________________________________________________________________________________________________ CPU 4 Interrupt cycle time (s): 13.405205 CPU 4 ISR highest execution time (µs): 18.281520 CPU 4 ISR total execution time (s): 0.003748 CPU 4 ISR count: 260 CPU 4 DPC highest execution time (µs): 408.293955 CPU 4 DPC total execution time (s): 0.210059 CPU 4 DPC count: 42299 _________________________________________________________________________________________________________ CPU 5 Interrupt cycle time (s): 17.825387 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): 566.917444 CPU 5 DPC total execution time (s): 0.072897 CPU 5 DPC count: 15381 _________________________________________________________________________________________________________ CPU 6 Interrupt cycle time (s): 12.346255 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): 538.107772 CPU 6 DPC total execution time (s): 0.269147 CPU 6 DPC count: 76704 _________________________________________________________________________________________________________ CPU 7 Interrupt cycle time (s): 14.397666 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): 93.972021 CPU 7 DPC total execution time (s): 0.024844 CPU 7 DPC count: 6855 _________________________________________________________________________________________________________ CPU 8 Interrupt cycle time (s): 5.899408 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): 300.287737 CPU 8 DPC total execution time (s): 0.070134 CPU 8 DPC count: 13842 _________________________________________________________________________________________________________ CPU 9 Interrupt cycle time (s): 5.241716 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): 90.916753 CPU 9 DPC total execution time (s): 0.011547 CPU 9 DPC count: 1839 _________________________________________________________________________________________________________ CPU 10 Interrupt cycle time (s): 7.039376 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): 191.900864 CPU 10 DPC total execution time (s): 0.082998 CPU 10 DPC count: 11956 _________________________________________________________________________________________________________ CPU 11 Interrupt cycle time (s): 6.204581 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): 202.629361 CPU 11 DPC total execution time (s): 0.015954 CPU 11 DPC count: 1989 _________________________________________________________________________________________________________ CPU 12 Interrupt cycle time (s): 6.103641 CPU 12 ISR highest execution time (µs): 17.339896 CPU 12 ISR total execution time (s): 0.012265 CPU 12 ISR count: 15518 CPU 12 DPC highest execution time (µs): 103.568566 CPU 12 DPC total execution time (s): 0.064991 CPU 12 DPC count: 8989 _________________________________________________________________________________________________________ CPU 13 Interrupt cycle time (s): 5.582348 CPU 13 ISR highest execution time (µs): 3.375820 CPU 13 ISR total execution time (s): 0.000415 CPU 13 ISR count: 426 CPU 13 DPC highest execution time (µs): 93.180656 CPU 13 DPC total execution time (s): 0.014608 CPU 13 DPC count: 1893 _________________________________________________________________________________________________________ CPU 14 Interrupt cycle time (s): 5.669287 CPU 14 ISR highest execution time (µs): 7.092228 CPU 14 ISR total execution time (s): 0.003914 CPU 14 ISR count: 5492 CPU 14 DPC highest execution time (µs): 83.924698 CPU 14 DPC total execution time (s): 0.058615 CPU 14 DPC count: 7480 _________________________________________________________________________________________________________ CPU 15 Interrupt cycle time (s): 5.834285 CPU 15 ISR highest execution time (µs): 13.613472 CPU 15 ISR total execution time (s): 0.004293 CPU 15 ISR count: 4013 CPU 15 DPC highest execution time (µs): 196.238342 CPU 15 DPC total execution time (s): 0.037662 CPU 15 DPC count: 3480 _________________________________________________________________________________________________________