Hi, I'm having occasional DPC latency which spike makes my audio crack. It seems the main problem is Wdf01000.sys, however I've been searching on solutions for several days with no luck. I've tried enabling various different drivers to try to find the problematic one, but I couldn't find it. I'd appreciate some help with my issue, thanks.
Trace.etl/msinfo32/DxDiag:
Dropbox - Information.zip
Speccy:
http://speccy.piriform.com/results/Xi2sp2rHU0ZwDgrdUykKK35
a. Self built
b. Desktop
d. Windows 10
e. 64bit
f. Windows 10 1709
g. Same as above
i. One week
j. One week
k. No
l. Ryzen 1500x
m. Ripjaws V Series 16gb (2x8gb) DDR4 2400
n. EVGA Nvidia 1050 ti
o. Gigabyte AB350 Gaming 3
p. EVGA 650 G3
q. Disabled
r. Malwarebytes
s. No
t. Daemon tools and PowerISO
u.No
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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. 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 0:01:27 (h:mm:ss) on all processors.
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SYSTEM INFORMATION
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Computer name: JACKEY-PC
OS version: Windows 10 , 10.0, build: 16299 (x64)
Hardware: AB350-Gaming 3, Gigabyte Technology Co., Ltd., AB350-Gaming 3-CF
CPU: AuthenticAMD AMD Ryzen 5 1500X Quad-Core Processor
Logical processors: 8
Processor groups: 1
RAM: 16335 MB total
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CPU SPEED
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Reported CPU speed: 3493 MHz
Measured CPU speed: 1 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): 1066.667761
Average measured interrupt to process latency (µs): 3.888688
Highest measured interrupt to DPC latency (µs): 996.318692
Average measured interrupt to DPC latency (µs): 1.773153
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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): 275.881764
Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Highest reported total ISR routine time (%): 0.140310
Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Total time spent in ISRs (%) 0.180820
ISR count (execution time <250 µs): 386499
ISR count (execution time 250-500 µs): 0
ISR count (execution time 500-999 µs): 2
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): 1360.250501
Driver with highest DPC routine execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation
Highest reported total DPC routine time (%): 0.183547
Driver with highest DPC total execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation
Total time spent in DPCs (%) 0.371282
DPC count (execution time <250 µs): 622028
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 332
DPC count (execution time 1000-1999 µs): 127
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): 5.324167
CPU 0 ISR highest execution time (µs): 270.951904
CPU 0 ISR total execution time (s): 1.071641
CPU 0 ISR count: 193699
CPU 0 DPC highest execution time (µs): 1360.250501
CPU 0 DPC total execution time (s): 2.181650
CPU 0 DPC count: 572484
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CPU 1 Interrupt cycle time (s): 1.972056
CPU 1 ISR highest execution time (µs): 275.881764
CPU 1 ISR total execution time (s): 0.086581
CPU 1 ISR count: 44123
CPU 1 DPC highest execution time (µs): 1323.076152
CPU 1 DPC total execution time (s): 0.306275
CPU 1 DPC count: 31216
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CPU 2 Interrupt cycle time (s): 0.995984
CPU 2 ISR highest execution time (µs): 151.633267
CPU 2 ISR total execution time (s): 0.017312
CPU 2 ISR count: 25136
CPU 2 DPC highest execution time (µs): 246.122244
CPU 2 DPC total execution time (s): 0.031777
CPU 2 DPC count: 5665
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CPU 3 Interrupt cycle time (s): 1.447954
CPU 3 ISR highest execution time (µs): 114.89980
CPU 3 ISR total execution time (s): 0.011330
CPU 3 ISR count: 17401
CPU 3 DPC highest execution time (µs): 234.308617
CPU 3 DPC total execution time (s): 0.015379
CPU 3 DPC count: 3543
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CPU 4 Interrupt cycle time (s): 0.601811
CPU 4 ISR highest execution time (µs): 15.400802
CPU 4 ISR total execution time (s): 0.015438
CPU 4 ISR count: 21285
CPU 4 DPC highest execution time (µs): 97.505010
CPU 4 DPC total execution time (s): 0.013137
CPU 4 DPC count: 2865
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CPU 5 Interrupt cycle time (s): 0.554791
CPU 5 ISR highest execution time (µs): 12.925852
CPU 5 ISR total execution time (s): 0.006631
CPU 5 ISR count: 9433
CPU 5 DPC highest execution time (µs): 49.048096
CPU 5 DPC total execution time (s): 0.006036
CPU 5 DPC count: 1312
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CPU 6 Interrupt cycle time (s): 0.703772
CPU 6 ISR highest execution time (µs): 85.180361
CPU 6 ISR total execution time (s): 0.017052
CPU 6 ISR count: 25794
CPU 6 DPC highest execution time (µs): 122.645291
CPU 6 DPC total execution time (s): 0.017447
CPU 6 DPC count: 3290
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CPU 7 Interrupt cycle time (s): 0.679340
CPU 7 ISR highest execution time (µs): 160.160321
CPU 7 ISR total execution time (s): 0.032738
CPU 7 ISR count: 49630
CPU 7 DPC highest execution time (µs): 117.635271
CPU 7 DPC total execution time (s): 0.012870
CPU 7 DPC count: 2112
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