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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 0:00:30 (h:mm:ss) on all processors.
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SYSTEM INFORMATION
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Computer name: DESKTOP-4LJ7B8U
OS version: Windows 10 , 10.0, version 1903, build: 18362 (x64)
Hardware: G3 3579, Dell Inc., 03TF0Y
CPU: GenuineIntel Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz
Logical processors: 12
Processor groups: 1
RAM: 16243 MB total
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CPU SPEED
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Reported CPU speed: 2208 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.
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): 1246.90
Average measured interrupt to process latency (µs): 4.954838
Highest measured interrupt to DPC latency (µs): 1201.0
Average measured interrupt to DPC latency (µs): 2.224474
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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): 266.134964
Driver with highest ISR routine execution time: ACPI.sys - ACPI Driver for NT, Microsoft Corporation
Highest reported total ISR routine time (%): 0.037869
Driver with highest ISR total time: ACPI.sys - ACPI Driver for NT, Microsoft Corporation
Total time spent in ISRs (%) 0.040033
ISR count (execution time <250 µs): 1837
ISR count (execution time 250-500 µs): 0
ISR count (execution time 500-999 µs): 1
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): 1888.673913
Driver with highest DPC routine execution time: ACPI.sys - ACPI Driver for NT, Microsoft Corporation
Highest reported total DPC routine time (%): 0.07530
Driver with highest DPC total execution time: ACPI.sys - ACPI Driver for NT, Microsoft Corporation
Total time spent in DPCs (%) 0.171703
DPC count (execution time <250 µs): 110887
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 816
DPC count (execution time 1000-1999 µs): 2
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.
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: latmon.exe
Total number of hard pagefaults 56
Hard pagefault count of hardest hit process: 31
Number of processes hit: 4
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PER CPU DATA
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CPU 0 Interrupt cycle time (s): 1.521935
CPU 0 ISR highest execution time (µs): 266.134964
CPU 0 ISR total execution time (s): 0.143855
CPU 0 ISR count: 1806
CPU 0 DPC highest execution time (µs): 1888.673913
CPU 0 DPC total execution time (s): 0.587657
CPU 0 DPC count: 109217
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CPU 1 Interrupt cycle time (s): 1.056729
CPU 1 ISR highest execution time (µs): 90.649457
CPU 1 ISR total execution time (s): 0.000566
CPU 1 ISR count: 32
CPU 1 DPC highest execution time (µs): 262.891304
CPU 1 DPC total execution time (s): 0.005713
CPU 1 DPC count: 345
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CPU 2 Interrupt cycle time (s): 0.884557
CPU 2 ISR highest execution time (µs): 0.0
CPU 2 ISR total execution time (s): 0.0
CPU 2 ISR count: 0
CPU 2 DPC highest execution time (µs): 215.095109
CPU 2 DPC total execution time (s): 0.009398
CPU 2 DPC count: 578
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CPU 3 Interrupt cycle time (s): 1.267276
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): 7.033514
CPU 3 DPC total execution time (s): 0.000128
CPU 3 DPC count: 33
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CPU 4 Interrupt cycle time (s): 0.728679
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): 161.634058
CPU 4 DPC total execution time (s): 0.004081
CPU 4 DPC count: 299
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CPU 5 Interrupt cycle time (s): 1.152390
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): 4.049819
CPU 5 DPC total execution time (s): 0.000004
CPU 5 DPC count: 1
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CPU 6 Interrupt cycle time (s): 0.698233
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): 137.204710
CPU 6 DPC total execution time (s): 0.002094
CPU 6 DPC count: 188
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CPU 7 Interrupt cycle time (s): 1.100397
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): 27.759964
CPU 7 DPC total execution time (s): 0.000244
CPU 7 DPC count: 19
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CPU 8 Interrupt cycle time (s): 0.712288
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): 197.096014
CPU 8 DPC total execution time (s): 0.003672
CPU 8 DPC count: 310
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CPU 9 Interrupt cycle time (s): 1.158776
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): 15.970109
CPU 9 DPC total execution time (s): 0.000207
CPU 9 DPC count: 53
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CPU 10 Interrupt cycle time (s): 0.697452
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): 157.528080
CPU 10 DPC total execution time (s): 0.006222
CPU 10 DPC count: 659
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CPU 11 Interrupt cycle time (s): 1.513097
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): 5.928442
CPU 11 DPC total execution time (s): 0.000009
CPU 11 DPC count: 3
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