- Sep 11, 2017
- 25
- 0
- 540
Hello all,
I have been banging my head to find the root cause of the audio/video stutters on my new PC build (https://pcpartpicker.com/list/cxMqFd) and finally found that the drivers (may be hardware as well) are the issue by looking at the LatencyMonitor results.
I have tried everything possible solution provided on the internet to fix dpc/latency issue but nothing fixed my problem.
Things I have tried:
1. Windows 10 reinstall and disabled driver auto update
2. DDU nvidia drivers and reinstall only GPU driver (didnt install HD audio driver or anything else)
3. Install Ethernet driver from mobo vendor & install latest ethernet driver from manufacturer
4. Tried installing Realtek audio driver
4. Disable HD audio driver from device manager and disabled HD audio from bios
5. Disable C-states from bios
6. Disable HPET from bios
7. Set gpu and system at max performance
8. Set dynamic tick command (cant remember the command)
The HD audio device is disabled when the below LatencyMon is ran, (Mobo version of Lan driver was installed, GPU and sys and max perf)
LatencyMon results in Imgur album - https://imgur.com/a/11fme
LatencyMon stats:
I have been banging my head to find the root cause of the audio/video stutters on my new PC build (https://pcpartpicker.com/list/cxMqFd) and finally found that the drivers (may be hardware as well) are the issue by looking at the LatencyMonitor results.
I have tried everything possible solution provided on the internet to fix dpc/latency issue but nothing fixed my problem.
Things I have tried:
1. Windows 10 reinstall and disabled driver auto update
2. DDU nvidia drivers and reinstall only GPU driver (didnt install HD audio driver or anything else)
3. Install Ethernet driver from mobo vendor & install latest ethernet driver from manufacturer
4. Tried installing Realtek audio driver
4. Disable HD audio driver from device manager and disabled HD audio from bios
5. Disable C-states from bios
6. Disable HPET from bios
7. Set gpu and system at max performance
8. Set dynamic tick command (cant remember the command)
The HD audio device is disabled when the below LatencyMon is ran, (Mobo version of Lan driver was installed, GPU and sys and max perf)
LatencyMon results in Imgur album - https://imgur.com/a/11fme
LatencyMon stats:
Code:
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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. Also one or more ISR 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 0:01:33 (h:mm:ss) on all processors.
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SYSTEM INFORMATION
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Computer name: REDBEAST
OS version: Windows 10 , 10.0, build: 15063 (x64)
Hardware: ASRock, AB350 Pro4
CPU: AuthenticAMD AMD Ryzen 5 1600 Six-Core Processor
Logical processors: 12
Processor groups: 1
RAM: 16316 MB total
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CPU SPEED
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Reported CPU speed: 3194 MHz
Measured CPU speed: 22 MHz (approx.)
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.
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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): 241463.090979
Average measured interrupt to process latency (µs): 15.136404
Highest measured interrupt to DPC latency (µs): 241444.862406
Average measured interrupt to DPC latency (µs): 9.395673
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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): 241360.621165
Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Highest reported total ISR routine time (%): 0.15970
Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Total time spent in ISRs (%) 0.161089
ISR count (execution time <250 µs): 53823
ISR count (execution time 250-500 µs): 0
ISR count (execution time 500-999 µs): 0
ISR count (execution time 1000-1999 µs): 0
ISR count (execution time 2000-3999 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): 241384.806512
Driver with highest DPC routine execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation
Highest reported total DPC routine time (%): 0.054922
Driver with highest DPC total execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 385.69 , NVIDIA Corporation
Total time spent in DPCs (%) 0.282004
DPC count (execution time <250 µs): 344023
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 37
DPC count (execution time 1000-1999 µs): 0
DPC count (execution time 2000-3999 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.
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
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PER CPU DATA
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CPU 0 Interrupt cycle time (s): 5.865632
CPU 0 ISR highest execution time (µs): 241360.621165
CPU 0 ISR total execution time (s): 1.786641
CPU 0 ISR count: 39782
CPU 0 DPC highest execution time (µs): 120719.118347
CPU 0 DPC total execution time (s): 2.323956
CPU 0 DPC count: 307178
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CPU 1 Interrupt cycle time (s): 1.250099
CPU 1 ISR highest execution time (µs): 107.331246
CPU 1 ISR total execution time (s): 0.004703
CPU 1 ISR count: 1812
CPU 1 DPC highest execution time (µs): 241384.806512
CPU 1 DPC total execution time (s): 0.297040
CPU 1 DPC count: 3834
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CPU 2 Interrupt cycle time (s): 0.884147
CPU 2 ISR highest execution time (µs): 2.314339
CPU 2 ISR total execution time (s): 0.000036
CPU 2 ISR count: 31
CPU 2 DPC highest execution time (µs): 167.714465
CPU 2 DPC total execution time (s): 0.051716
CPU 2 DPC count: 7006
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CPU 3 Interrupt cycle time (s): 0.917657
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): 145.322480
CPU 3 DPC total execution time (s): 0.015142
CPU 3 DPC count: 1956
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CPU 4 Interrupt cycle time (s): 0.742980
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): 24130.925485
CPU 4 DPC total execution time (s): 0.088312
CPU 4 DPC count: 7404
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CPU 5 Interrupt cycle time (s): 0.962480
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): 154.359424
CPU 5 DPC total execution time (s): 0.017147
CPU 5 DPC count: 1902
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CPU 6 Interrupt cycle time (s): 1.030290
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): 24177.983719
CPU 6 DPC total execution time (s): 0.070441
CPU 6 DPC count: 2758
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CPU 7 Interrupt cycle time (s): 1.087629
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): 48287.168441
CPU 7 DPC total execution time (s): 0.072345
CPU 7 DPC count: 2188
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CPU 8 Interrupt cycle time (s): 1.162209
CPU 8 ISR highest execution time (µs): 14.877896
CPU 8 ISR total execution time (s): 0.005245
CPU 8 ISR count: 9575
CPU 8 DPC highest execution time (µs): 24149.540388
CPU 8 DPC total execution time (s): 0.055250
CPU 8 DPC count: 3431
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CPU 9 Interrupt cycle time (s): 1.135945
CPU 9 ISR highest execution time (µs): 17.382592
CPU 9 ISR total execution time (s): 0.000592
CPU 9 ISR count: 743
CPU 9 DPC highest execution time (µs): 183.073262
CPU 9 DPC total execution time (s): 0.018201
CPU 9 DPC count: 1895
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CPU 10 Interrupt cycle time (s): 0.944242
CPU 10 ISR highest execution time (µs): 4.899186
CPU 10 ISR total execution time (s): 0.000624
CPU 10 ISR count: 877
CPU 10 DPC highest execution time (µs): 96552.075141
CPU 10 DPC total execution time (s): 0.128361
CPU 10 DPC count: 3436
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CPU 11 Interrupt cycle time (s): 0.865724
CPU 11 ISR highest execution time (µs): 19.857232
CPU 11 ISR total execution time (s): 0.000807
CPU 11 ISR count: 1006
CPU 11 DPC highest execution time (µs): 120.395742
CPU 11 DPC total execution time (s): 0.010816
CPU 11 DPC count: 1088
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