Recently I've been having problems, particularly in Google Chrome, with audio clipping. I think the report below might be suggesting that is something to do with my graphics card / DirectX?
I updated the Bios, graphics card drivers, and reinstalled the Realtek audio drivers, but none of that has fixed the issue. Any ideas?
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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. 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 0:00:32 (h:mm:ss) on all processors.
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SYSTEM INFORMATION
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Computer name: JAMES
OS version: Windows 10, 10.0, version 2009, build: 19043 (x64)
Hardware: System Product Name, System manufacturer
CPU: GenuineIntel Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz
Logical processors: 16
Processor groups: 1
RAM: 32698 MB total
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CPU SPEED
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Reported CPU speed: 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): 157.10
Average measured interrupt to process latency (µs): 3.839605
Highest measured interrupt to DPC latency (µs): 152.50
Average measured interrupt to DPC latency (µs): 1.707583
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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): 399.571111
Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Highest reported total ISR routine time (%): 0.040365
Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Total time spent in ISRs (%) 0.048249
ISR count (execution time <250 µs): 22393
ISR count (execution time 250-500 µs): 0
ISR count (execution time 500-1000 µs): 1
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): 2641.107222
Driver with highest DPC routine execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 471.41 , NVIDIA Corporation
Highest reported total DPC routine time (%): 0.026069
Driver with highest DPC total execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 471.41 , NVIDIA Corporation
Total time spent in DPCs (%) 0.064420
DPC count (execution time <250 µs): 33642
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-10000 µs): 14
DPC count (execution time 1000-2000 µs): 1
DPC count (execution time 2000-4000 µs): 1
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: chrome.exe
Total number of hard pagefaults 98
Hard pagefault count of hardest hit process: 57
Number of processes hit: 7
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PER CPU DATA
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CPU 0 Interrupt cycle time (s): 1.054835
CPU 0 ISR highest execution time (µs): 399.571111
CPU 0 ISR total execution time (s): 0.247002
CPU 0 ISR count: 21065
CPU 0 DPC highest execution time (µs): 2641.107222
CPU 0 DPC total execution time (s): 0.318229
CPU 0 DPC count: 30339
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CPU 1 Interrupt cycle time (s): 0.14240
CPU 1 ISR highest execution time (µs): 19.925556
CPU 1 ISR total execution time (s): 0.000439
CPU 1 ISR count: 265
CPU 1 DPC highest execution time (µs): 47.789444
CPU 1 DPC total execution time (s): 0.002508
CPU 1 DPC count: 278
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CPU 2 Interrupt cycle time (s): 0.162485
CPU 2 ISR highest execution time (µs): 6.748889
CPU 2 ISR total execution time (s): 0.000047
CPU 2 ISR count: 18
CPU 2 DPC highest execution time (µs): 50.226667
CPU 2 DPC total execution time (s): 0.001297
CPU 2 DPC count: 407
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CPU 3 Interrupt cycle time (s): 0.138827
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): 12.202222
CPU 3 DPC total execution time (s): 0.000199
CPU 3 DPC count: 52
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CPU 4 Interrupt cycle time (s): 0.126956
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): 15.688889
CPU 4 DPC total execution time (s): 0.001113
CPU 4 DPC count: 400
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CPU 5 Interrupt cycle time (s): 0.118656
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): 11.627778
CPU 5 DPC total execution time (s): 0.000139
CPU 5 DPC count: 50
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CPU 6 Interrupt cycle time (s): 0.129372
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): 23.005556
CPU 6 DPC total execution time (s): 0.000659
CPU 6 DPC count: 212
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CPU 7 Interrupt cycle time (s): 0.117077
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): 16.084444
CPU 7 DPC total execution time (s): 0.000111
CPU 7 DPC count: 39
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CPU 8 Interrupt cycle time (s): 0.119401
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): 31.764444
CPU 8 DPC total execution time (s): 0.000375
CPU 8 DPC count: 128
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CPU 9 Interrupt cycle time (s): 0.117240
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): 36.10
CPU 9 DPC total execution time (s): 0.000117
CPU 9 DPC count: 15
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CPU 10 Interrupt cycle time (s): 0.148595
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): 126.8750
CPU 10 DPC total execution time (s): 0.000359
CPU 10 DPC count: 93
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CPU 11 Interrupt cycle time (s): 0.135026
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): 14.217778
CPU 11 DPC total execution time (s): 0.000041
CPU 11 DPC count: 10
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CPU 12 Interrupt cycle time (s): 0.272957
CPU 12 ISR highest execution time (µs): 2.292222
CPU 12 ISR total execution time (s): 0.000189
CPU 12 ISR count: 507
CPU 12 DPC highest execution time (µs): 133.262778
CPU 12 DPC total execution time (s): 0.005163
CPU 12 DPC count: 1487
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CPU 13 Interrupt cycle time (s): 0.162284
CPU 13 ISR highest execution time (µs): 1.257778
CPU 13 ISR total execution time (s): 0.000209
CPU 13 ISR count: 539
CPU 13 DPC highest execution time (µs): 12.017222
CPU 13 DPC total execution time (s): 0.000074
CPU 13 DPC count: 34
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CPU 14 Interrupt cycle time (s): 0.143299
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): 92.792778
CPU 14 DPC total execution time (s): 0.000330
CPU 14 DPC count: 65
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CPU 15 Interrupt cycle time (s): 0.140819
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): 18.792778
CPU 15 DPC total execution time (s): 0.000251
CPU 15 DPC count: 49
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I updated the Bios, graphics card drivers, and reinstalled the Realtek audio drivers, but none of that has fixed the issue. Any ideas?
_________________________________________________________________________________________________________
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 0:00:32 (h:mm:ss) on all processors.
_________________________________________________________________________________________________________
SYSTEM INFORMATION
_________________________________________________________________________________________________________
Computer name: JAMES
OS version: Windows 10, 10.0, version 2009, build: 19043 (x64)
Hardware: System Product Name, System manufacturer
CPU: GenuineIntel Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz
Logical processors: 16
Processor groups: 1
RAM: 32698 MB total
_________________________________________________________________________________________________________
CPU SPEED
_________________________________________________________________________________________________________
Reported CPU speed: 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.
_________________________________________________________________________________________________________
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): 157.10
Average measured interrupt to process latency (µs): 3.839605
Highest measured interrupt to DPC latency (µs): 152.50
Average measured interrupt to DPC latency (µs): 1.707583
_________________________________________________________________________________________________________
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): 399.571111
Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Highest reported total ISR routine time (%): 0.040365
Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Total time spent in ISRs (%) 0.048249
ISR count (execution time <250 µs): 22393
ISR count (execution time 250-500 µs): 0
ISR count (execution time 500-1000 µs): 1
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): 2641.107222
Driver with highest DPC routine execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 471.41 , NVIDIA Corporation
Highest reported total DPC routine time (%): 0.026069
Driver with highest DPC total execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 471.41 , NVIDIA Corporation
Total time spent in DPCs (%) 0.064420
DPC count (execution time <250 µs): 33642
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-10000 µs): 14
DPC count (execution time 1000-2000 µs): 1
DPC count (execution time 2000-4000 µs): 1
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: chrome.exe
Total number of hard pagefaults 98
Hard pagefault count of hardest hit process: 57
Number of processes hit: 7
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PER CPU DATA
_________________________________________________________________________________________________________
CPU 0 Interrupt cycle time (s): 1.054835
CPU 0 ISR highest execution time (µs): 399.571111
CPU 0 ISR total execution time (s): 0.247002
CPU 0 ISR count: 21065
CPU 0 DPC highest execution time (µs): 2641.107222
CPU 0 DPC total execution time (s): 0.318229
CPU 0 DPC count: 30339
_________________________________________________________________________________________________________
CPU 1 Interrupt cycle time (s): 0.14240
CPU 1 ISR highest execution time (µs): 19.925556
CPU 1 ISR total execution time (s): 0.000439
CPU 1 ISR count: 265
CPU 1 DPC highest execution time (µs): 47.789444
CPU 1 DPC total execution time (s): 0.002508
CPU 1 DPC count: 278
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CPU 2 Interrupt cycle time (s): 0.162485
CPU 2 ISR highest execution time (µs): 6.748889
CPU 2 ISR total execution time (s): 0.000047
CPU 2 ISR count: 18
CPU 2 DPC highest execution time (µs): 50.226667
CPU 2 DPC total execution time (s): 0.001297
CPU 2 DPC count: 407
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CPU 3 Interrupt cycle time (s): 0.138827
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): 12.202222
CPU 3 DPC total execution time (s): 0.000199
CPU 3 DPC count: 52
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CPU 4 Interrupt cycle time (s): 0.126956
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): 15.688889
CPU 4 DPC total execution time (s): 0.001113
CPU 4 DPC count: 400
_________________________________________________________________________________________________________
CPU 5 Interrupt cycle time (s): 0.118656
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): 11.627778
CPU 5 DPC total execution time (s): 0.000139
CPU 5 DPC count: 50
_________________________________________________________________________________________________________
CPU 6 Interrupt cycle time (s): 0.129372
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): 23.005556
CPU 6 DPC total execution time (s): 0.000659
CPU 6 DPC count: 212
_________________________________________________________________________________________________________
CPU 7 Interrupt cycle time (s): 0.117077
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): 16.084444
CPU 7 DPC total execution time (s): 0.000111
CPU 7 DPC count: 39
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CPU 8 Interrupt cycle time (s): 0.119401
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): 31.764444
CPU 8 DPC total execution time (s): 0.000375
CPU 8 DPC count: 128
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CPU 9 Interrupt cycle time (s): 0.117240
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): 36.10
CPU 9 DPC total execution time (s): 0.000117
CPU 9 DPC count: 15
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CPU 10 Interrupt cycle time (s): 0.148595
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): 126.8750
CPU 10 DPC total execution time (s): 0.000359
CPU 10 DPC count: 93
_________________________________________________________________________________________________________
CPU 11 Interrupt cycle time (s): 0.135026
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): 14.217778
CPU 11 DPC total execution time (s): 0.000041
CPU 11 DPC count: 10
_________________________________________________________________________________________________________
CPU 12 Interrupt cycle time (s): 0.272957
CPU 12 ISR highest execution time (µs): 2.292222
CPU 12 ISR total execution time (s): 0.000189
CPU 12 ISR count: 507
CPU 12 DPC highest execution time (µs): 133.262778
CPU 12 DPC total execution time (s): 0.005163
CPU 12 DPC count: 1487
_________________________________________________________________________________________________________
CPU 13 Interrupt cycle time (s): 0.162284
CPU 13 ISR highest execution time (µs): 1.257778
CPU 13 ISR total execution time (s): 0.000209
CPU 13 ISR count: 539
CPU 13 DPC highest execution time (µs): 12.017222
CPU 13 DPC total execution time (s): 0.000074
CPU 13 DPC count: 34
_________________________________________________________________________________________________________
CPU 14 Interrupt cycle time (s): 0.143299
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): 92.792778
CPU 14 DPC total execution time (s): 0.000330
CPU 14 DPC count: 65
_________________________________________________________________________________________________________
CPU 15 Interrupt cycle time (s): 0.140819
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): 18.792778
CPU 15 DPC total execution time (s): 0.000251
CPU 15 DPC count: 49
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