while not reproducing the latencymon report from yesterday I have just got one where some problems seem to be happening:
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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 0:04:05 (h:mm:ss) on all processors.
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SYSTEM INFORMATION
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Computer name: DESKTOP-F9NO0LJ
OS version: Windows 10, 10.0, version 2009, build: 19042 (x64)
Hardware: To Be Filled By O.E.M., To Be Filled By O.E.M.
CPU: AuthenticAMD AMD Ryzen 5 2600X Six-Core Processor
Logical processors: 6
Processor groups: 1
RAM: 16315 MB total
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CPU SPEED
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Reported CPU speed: 3593 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): 466.50
Average measured interrupt to process latency (µs): 4.106991
Highest measured interrupt to DPC latency (µs): 462.80
Average measured interrupt to DPC latency (µs): 1.849327
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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): 98.301141
Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Highest reported total ISR routine time (%): 0.369442
Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Total time spent in ISRs (%) 0.389935
ISR count (execution time <250 µs): 386094
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
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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): 1002.218759
Driver with highest DPC routine execution time: CLASSPNP.SYS - SCSI Class System Dll, Microsoft Corporation
Highest reported total DPC routine time (%): 0.220564
Driver with highest DPC total execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Total time spent in DPCs (%) 0.457480
DPC count (execution time <250 µs): 923466
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-10000 µs): 4
DPC count (execution time 1000-2000 µs): 1
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: modernwarfare.exe
Total number of hard pagefaults 11042
Hard pagefault count of hardest hit process: 7711
Number of processes hit: 52
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PER CPU DATA
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CPU 0 Interrupt cycle time (s): 14.670143
CPU 0 ISR highest execution time (µs): 98.301141
CPU 0 ISR total execution time (s): 5.580826
CPU 0 ISR count: 337773
CPU 0 DPC highest execution time (µs): 1002.218759
CPU 0 DPC total execution time (s): 6.015276
CPU 0 DPC count: 823165
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CPU 1 Interrupt cycle time (s): 1.360532
CPU 1 ISR highest execution time (µs): 13.856944
CPU 1 ISR total execution time (s): 0.143589
CPU 1 ISR count: 38333
CPU 1 DPC highest execution time (µs): 96.086836
CPU 1 DPC total execution time (s): 0.335334
CPU 1 DPC count: 36610
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CPU 2 Interrupt cycle time (s): 0.688993
CPU 2 ISR highest execution time (µs): 10.710827
CPU 2 ISR total execution time (s): 0.016101
CPU 2 ISR count: 4268
CPU 2 DPC highest execution time (µs): 119.612580
CPU 2 DPC total execution time (s): 0.092327
CPU 2 DPC count: 21728
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CPU 3 Interrupt cycle time (s): 1.002757
CPU 3 ISR highest execution time (µs): 9.628723
CPU 3 ISR total execution time (s): 0.001833
CPU 3 ISR count: 843
CPU 3 DPC highest execution time (µs): 144.861675
CPU 3 DPC total execution time (s): 0.103065
CPU 3 DPC count: 14805
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CPU 4 Interrupt cycle time (s): 0.930662
CPU 4 ISR highest execution time (µs): 8.927359
CPU 4 ISR total execution time (s): 0.000760
CPU 4 ISR count: 897
CPU 4 DPC highest execution time (µs): 55.868633
CPU 4 DPC total execution time (s): 0.087944
CPU 4 DPC count: 13774
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CPU 5 Interrupt cycle time (s): 1.011029
CPU 5 ISR highest execution time (µs): 3.206234
CPU 5 ISR total execution time (s): 0.002807
CPU 5 ISR count: 3980
CPU 5 DPC highest execution time (µs): 46.300028
CPU 5 DPC total execution time (s): 0.107293
CPU 5 DPC count: 13389
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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 0:04:05 (h:mm:ss) on all processors.
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SYSTEM INFORMATION
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Computer name: DESKTOP-F9NO0LJ
OS version: Windows 10, 10.0, version 2009, build: 19042 (x64)
Hardware: To Be Filled By O.E.M., To Be Filled By O.E.M.
CPU: AuthenticAMD AMD Ryzen 5 2600X Six-Core Processor
Logical processors: 6
Processor groups: 1
RAM: 16315 MB total
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CPU SPEED
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Reported CPU speed: 3593 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): 466.50
Average measured interrupt to process latency (µs): 4.106991
Highest measured interrupt to DPC latency (µs): 462.80
Average measured interrupt to DPC latency (µs): 1.849327
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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): 98.301141
Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Highest reported total ISR routine time (%): 0.369442
Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Total time spent in ISRs (%) 0.389935
ISR count (execution time <250 µs): 386094
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
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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): 1002.218759
Driver with highest DPC routine execution time: CLASSPNP.SYS - SCSI Class System Dll, Microsoft Corporation
Highest reported total DPC routine time (%): 0.220564
Driver with highest DPC total execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Total time spent in DPCs (%) 0.457480
DPC count (execution time <250 µs): 923466
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-10000 µs): 4
DPC count (execution time 1000-2000 µs): 1
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: modernwarfare.exe
Total number of hard pagefaults 11042
Hard pagefault count of hardest hit process: 7711
Number of processes hit: 52
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PER CPU DATA
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CPU 0 Interrupt cycle time (s): 14.670143
CPU 0 ISR highest execution time (µs): 98.301141
CPU 0 ISR total execution time (s): 5.580826
CPU 0 ISR count: 337773
CPU 0 DPC highest execution time (µs): 1002.218759
CPU 0 DPC total execution time (s): 6.015276
CPU 0 DPC count: 823165
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CPU 1 Interrupt cycle time (s): 1.360532
CPU 1 ISR highest execution time (µs): 13.856944
CPU 1 ISR total execution time (s): 0.143589
CPU 1 ISR count: 38333
CPU 1 DPC highest execution time (µs): 96.086836
CPU 1 DPC total execution time (s): 0.335334
CPU 1 DPC count: 36610
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CPU 2 Interrupt cycle time (s): 0.688993
CPU 2 ISR highest execution time (µs): 10.710827
CPU 2 ISR total execution time (s): 0.016101
CPU 2 ISR count: 4268
CPU 2 DPC highest execution time (µs): 119.612580
CPU 2 DPC total execution time (s): 0.092327
CPU 2 DPC count: 21728
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CPU 3 Interrupt cycle time (s): 1.002757
CPU 3 ISR highest execution time (µs): 9.628723
CPU 3 ISR total execution time (s): 0.001833
CPU 3 ISR count: 843
CPU 3 DPC highest execution time (µs): 144.861675
CPU 3 DPC total execution time (s): 0.103065
CPU 3 DPC count: 14805
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CPU 4 Interrupt cycle time (s): 0.930662
CPU 4 ISR highest execution time (µs): 8.927359
CPU 4 ISR total execution time (s): 0.000760
CPU 4 ISR count: 897
CPU 4 DPC highest execution time (µs): 55.868633
CPU 4 DPC total execution time (s): 0.087944
CPU 4 DPC count: 13774
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CPU 5 Interrupt cycle time (s): 1.011029
CPU 5 ISR highest execution time (µs): 3.206234
CPU 5 ISR total execution time (s): 0.002807
CPU 5 ISR count: 3980
CPU 5 DPC highest execution time (µs): 46.300028
CPU 5 DPC total execution time (s): 0.107293
CPU 5 DPC count: 13389
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