nikasio
New member
- Nov 19, 2020
- 2
Hi, I'm new to the forum and this is my first post so I hope I'm not doing it in the wrong place.
I've been experiencing some video stuttering on my PC, at first in games but later I began noticing them while using Discord or web browsing, searching for a solution I read it could be related to DPC latency.
Here are my specs:
OS: Windows 10 Pro 64bit Version 1909
CPU: Intel i5-6500
MOBO: Asus H110M-K
RAM: ADATA 8GB DDR4 2400Mhz
SSD: Aireye 120GB
Video Card: MSI RX 480 Gaming X
Power Supply: EVGA 500W 80+
So far I've tried:
- Clean installing Windows 10, with 20H2 and 1909 the problem persists
- Updated the BIOS to the latest version
I'm not using any VPN or similar software and haven't installed any security software installed besides whatever came with Windows or done any overclocking.
I've been experiencing some video stuttering on my PC, at first in games but later I began noticing them while using Discord or web browsing, searching for a solution I read it could be related to DPC latency.
Here are my specs:
OS: Windows 10 Pro 64bit Version 1909
CPU: Intel i5-6500
MOBO: Asus H110M-K
RAM: ADATA 8GB DDR4 2400Mhz
SSD: Aireye 120GB
Video Card: MSI RX 480 Gaming X
Power Supply: EVGA 500W 80+
So far I've tried:
- Clean installing Windows 10, with 20H2 and 1909 the problem persists
- Updated the BIOS to the latest version
I'm not using any VPN or similar software and haven't installed any security software installed besides whatever came with Windows or done any overclocking.
_________________________________________________________________________________________________________
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. 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 0:24:20 (h:mm:ss) on all processors.
_________________________________________________________________________________________________________
SYSTEM INFORMATION
_________________________________________________________________________________________________________
Computer name: DESKTOP-A3TRPQC
OS version: Windows 10, 10.0, version 1909, build: 18363 (x64)
Hardware: System Product Name, System manufacturer
CPU: GenuineIntel Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz
Logical processors: 4
Processor groups: 1
RAM: 8135 MB total
_________________________________________________________________________________________________________
CPU SPEED
_________________________________________________________________________________________________________
Reported CPU speed: 3192 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 KERNEL TIMER LATENCIES
_________________________________________________________________________________________________________
This value represents the maximum measured latency of a perodically scheduled kernel timer.
Highest measured kernel timer latency (µs): 28797.40
_________________________________________________________________________________________________________
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): 70.825815
Driver with highest ISR routine execution time: HDAudBus.sys - High Definition Audio Bus Driver, Microsoft Corporation
Highest reported total ISR routine time (%): 0.006223
Driver with highest ISR total time: HDAudBus.sys - High Definition Audio Bus Driver, Microsoft Corporation
Total time spent in ISRs (%) 0.007209
ISR count (execution time <250 µs): 63407
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
_________________________________________________________________________________________________________
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): 1790.516917
Driver with highest DPC routine execution time: CLASSPNP.SYS - SCSI Class System Dll, Microsoft Corporation
Highest reported total DPC routine time (%): 0.058038
Driver with highest DPC total execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Total time spent in DPCs (%) 0.137375
DPC count (execution time <250 µs): 1218194
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-10000 µs): 1012
DPC count (execution time 1000-2000 µs): 1
DPC count (execution time 2000-4000 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: msmpeng.exe
Total number of hard pagefaults 94572
Hard pagefault count of hardest hit process: 30591
Number of processes hit: 112
_________________________________________________________________________________________________________
PER CPU DATA
_________________________________________________________________________________________________________
CPU 0 Interrupt cycle time (s): 17.523974
CPU 0 ISR highest execution time (µs): 70.825815
CPU 0 ISR total execution time (s): 0.419916
CPU 0 ISR count: 63177
CPU 0 DPC highest execution time (µs): 831.647243
CPU 0 DPC total execution time (s): 6.068955
CPU 0 DPC count: 773233
_________________________________________________________________________________________________________
CPU 1 Interrupt cycle time (s): 3.165651
CPU 1 ISR highest execution time (µs): 21.496867
CPU 1 ISR total execution time (s): 0.001160
CPU 1 ISR count: 205
CPU 1 DPC highest execution time (µs): 534.028195
CPU 1 DPC total execution time (s): 0.547718
CPU 1 DPC count: 107848
_________________________________________________________________________________________________________
CPU 2 Interrupt cycle time (s): 3.603078
CPU 2 ISR highest execution time (µs): 2.269424
CPU 2 ISR total execution time (s): 0.000030
CPU 2 ISR count: 20
CPU 2 DPC highest execution time (µs): 1790.516917
CPU 2 DPC total execution time (s): 0.639215
CPU 2 DPC count: 114119
_________________________________________________________________________________________________________
CPU 3 Interrupt cycle time (s): 4.854867
CPU 3 ISR highest execution time (µs): 8.718358
CPU 3 ISR total execution time (s): 0.000042
CPU 3 ISR count: 5
CPU 3 DPC highest execution time (µs): 403.078321
CPU 3 DPC total execution time (s): 0.769467
CPU 3 DPC count: 224007
_________________________________________________________________________________________________________
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. 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 0:24:20 (h:mm:ss) on all processors.
_________________________________________________________________________________________________________
SYSTEM INFORMATION
_________________________________________________________________________________________________________
Computer name: DESKTOP-A3TRPQC
OS version: Windows 10, 10.0, version 1909, build: 18363 (x64)
Hardware: System Product Name, System manufacturer
CPU: GenuineIntel Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz
Logical processors: 4
Processor groups: 1
RAM: 8135 MB total
_________________________________________________________________________________________________________
CPU SPEED
_________________________________________________________________________________________________________
Reported CPU speed: 3192 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 KERNEL TIMER LATENCIES
_________________________________________________________________________________________________________
This value represents the maximum measured latency of a perodically scheduled kernel timer.
Highest measured kernel timer latency (µs): 28797.40
_________________________________________________________________________________________________________
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): 70.825815
Driver with highest ISR routine execution time: HDAudBus.sys - High Definition Audio Bus Driver, Microsoft Corporation
Highest reported total ISR routine time (%): 0.006223
Driver with highest ISR total time: HDAudBus.sys - High Definition Audio Bus Driver, Microsoft Corporation
Total time spent in ISRs (%) 0.007209
ISR count (execution time <250 µs): 63407
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
_________________________________________________________________________________________________________
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): 1790.516917
Driver with highest DPC routine execution time: CLASSPNP.SYS - SCSI Class System Dll, Microsoft Corporation
Highest reported total DPC routine time (%): 0.058038
Driver with highest DPC total execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Total time spent in DPCs (%) 0.137375
DPC count (execution time <250 µs): 1218194
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-10000 µs): 1012
DPC count (execution time 1000-2000 µs): 1
DPC count (execution time 2000-4000 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: msmpeng.exe
Total number of hard pagefaults 94572
Hard pagefault count of hardest hit process: 30591
Number of processes hit: 112
_________________________________________________________________________________________________________
PER CPU DATA
_________________________________________________________________________________________________________
CPU 0 Interrupt cycle time (s): 17.523974
CPU 0 ISR highest execution time (µs): 70.825815
CPU 0 ISR total execution time (s): 0.419916
CPU 0 ISR count: 63177
CPU 0 DPC highest execution time (µs): 831.647243
CPU 0 DPC total execution time (s): 6.068955
CPU 0 DPC count: 773233
_________________________________________________________________________________________________________
CPU 1 Interrupt cycle time (s): 3.165651
CPU 1 ISR highest execution time (µs): 21.496867
CPU 1 ISR total execution time (s): 0.001160
CPU 1 ISR count: 205
CPU 1 DPC highest execution time (µs): 534.028195
CPU 1 DPC total execution time (s): 0.547718
CPU 1 DPC count: 107848
_________________________________________________________________________________________________________
CPU 2 Interrupt cycle time (s): 3.603078
CPU 2 ISR highest execution time (µs): 2.269424
CPU 2 ISR total execution time (s): 0.000030
CPU 2 ISR count: 20
CPU 2 DPC highest execution time (µs): 1790.516917
CPU 2 DPC total execution time (s): 0.639215
CPU 2 DPC count: 114119
_________________________________________________________________________________________________________
CPU 3 Interrupt cycle time (s): 4.854867
CPU 3 ISR highest execution time (µs): 8.718358
CPU 3 ISR total execution time (s): 0.000042
CPU 3 ISR count: 5
CPU 3 DPC highest execution time (µs): 403.078321
CPU 3 DPC total execution time (s): 0.769467
CPU 3 DPC count: 224007
_________________________________________________________________________________________________________
