Re: DPC issue - HP Support Community

dpc5 · ‎07-17-2024

I have a DPC issue with my gaming laptop where audio continues to pop and click when I record. I thought it was an issue with the audio interface I have but I was told it was a PC manufacturer issue below is the result of checking:

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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 0:03:16 (h:mm:ss) on all processors.

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SYSTEM INFORMATION
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Computer name: SUPERSWAGPC
OS version: Windows 11, 10.0, version 2009, build: 22631 (x64)
Hardware: Victus by HP Gaming Laptop 15-fa0xxx, HP
BIOS: F.26
CPU: GenuineIntel 12th Gen Intel(R) Core(TM) i7-12650H
Logical processors: 16
Processor groups: 1
Processor group size: 16
RAM: 16051 MB total

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CPU SPEED
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Reported CPU speed (WMI): 230 MHz
Reported CPU speed (registry): 2688 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): 681.10
Average measured interrupt to process latency (µs): 10.912555

Highest measured interrupt to DPC latency (µs): 191.80
Average measured interrupt to DPC latency (µs): 2.957709

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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): 271.607887
Driver with highest ISR routine execution time: ACPI.sys - ACPI Driver for NT, Microsoft Corporation

Highest reported total ISR routine time (%): 0.003114
Driver with highest ISR total time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation

Total time spent in ISRs (%) 0.003406

ISR count (execution time <250 µs): 19822
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): 1092.869048
Driver with highest DPC routine execution time: ACPI.sys - ACPI Driver for NT, Microsoft Corporation

Highest reported total DPC routine time (%): 0.050974
Driver with highest DPC total execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation

Total time spent in DPCs (%) 0.080316

DPC count (execution time <250 µs): 112131
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-10000 µs): 108
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: coresync.exe

Total number of hard pagefaults 111
Hard pagefault count of hardest hit process: 16
Number of processes hit: 30

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PER CPU DATA
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CPU 0 Interrupt cycle time (s): 0.702914
CPU 0 ISR highest execution time (µs): 0.0
CPU 0 ISR total execution time (s): 0.0
CPU 0 ISR count: 0
CPU 0 DPC highest execution time (µs): 44.593006
CPU 0 DPC total execution time (s): 0.002316
CPU 0 DPC count: 398
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CPU 1 Interrupt cycle time (s): 0.623902
CPU 1 ISR highest execution time (µs): 50.43750
CPU 1 ISR total execution time (s): 0.000516
CPU 1 ISR count: 73
CPU 1 DPC highest execution time (µs): 186.629464
CPU 1 DPC total execution time (s): 0.005050
CPU 1 DPC count: 240
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CPU 2 Interrupt cycle time (s): 0.464356
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): 194.473214
CPU 2 DPC total execution time (s): 0.000434
CPU 2 DPC count: 27
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CPU 3 Interrupt cycle time (s): 0.447954
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): 10.399554
CPU 3 DPC total execution time (s): 0.000029
CPU 3 DPC count: 7
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CPU 4 Interrupt cycle time (s): 3.111990
CPU 4 ISR highest execution time (µs): 165.200893
CPU 4 ISR total execution time (s): 0.037206
CPU 4 ISR count: 6726
CPU 4 DPC highest execution time (µs): 882.465774
CPU 4 DPC total execution time (s): 0.837968
CPU 4 DPC count: 37737
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CPU 5 Interrupt cycle time (s): 2.991156
CPU 5 ISR highest execution time (µs): 271.607887
CPU 5 ISR total execution time (s): 0.037831
CPU 5 ISR count: 6495
CPU 5 DPC highest execution time (µs): 1092.869048
CPU 5 DPC total execution time (s): 0.794829
CPU 5 DPC count: 33955
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CPU 6 Interrupt cycle time (s): 2.403624
CPU 6 ISR highest execution time (µs): 166.970982
CPU 6 ISR total execution time (s): 0.013082
CPU 6 ISR count: 2712
CPU 6 DPC highest execution time (µs): 386.304315
CPU 6 DPC total execution time (s): 0.356845
CPU 6 DPC count: 17046
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CPU 7 Interrupt cycle time (s): 2.440567
CPU 7 ISR highest execution time (µs): 208.046875
CPU 7 ISR total execution time (s): 0.018553
CPU 7 ISR count: 3817
CPU 7 DPC highest execution time (µs): 900.976190
CPU 7 DPC total execution time (s): 0.527337
CPU 7 DPC count: 22434
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CPU 8 Interrupt cycle time (s): 0.411109
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): 15.483631
CPU 8 DPC total execution time (s): 0.000028
CPU 8 DPC count: 5
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CPU 9 Interrupt cycle time (s): 0.409117
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): 50.080357
CPU 9 DPC total execution time (s): 0.000210
CPU 9 DPC count: 19
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CPU 10 Interrupt cycle time (s): 0.436923
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): 26.193452
CPU 10 DPC total execution time (s): 0.000118
CPU 10 DPC count: 13
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CPU 11 Interrupt cycle time (s): 0.427582
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): 46.893601
CPU 11 DPC total execution time (s): 0.000285
CPU 11 DPC count: 36
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CPU 12 Interrupt cycle time (s): 0.126110
CPU 12 ISR highest execution time (µs): 0.0
CPU 12 ISR total execution time (s): 0.0
CPU 12 ISR count: 0
CPU 12 DPC highest execution time (µs): 27.061756
CPU 12 DPC total execution time (s): 0.000267
CPU 12 DPC count: 34
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CPU 13 Interrupt cycle time (s): 0.129864
CPU 13 ISR highest execution time (µs): 0.0
CPU 13 ISR total execution time (s): 0.0
CPU 13 ISR count: 0
CPU 13 DPC highest execution time (µs): 55.941220
CPU 13 DPC total execution time (s): 0.000665
CPU 13 DPC count: 102
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CPU 14 Interrupt cycle time (s): 0.120957
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): 29.546131
CPU 14 DPC total execution time (s): 0.000376
CPU 14 DPC count: 135
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CPU 15 Interrupt cycle time (s): 0.125326
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): 56.790923
CPU 15 DPC total execution time (s): 0.000591
CPU 15 DPC count: 52
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Nal_NR · ‎07-20-2024

Hi @dpc5,

Welcome to the HP Support Community.

I'd be happy to help you!

Splendid analysis and remarkable patience were shown. It is immensely appreciated.

This might require one-on-one interaction to fix the issue via remote assistance.

For that to happen, we will give you additional instructions/information via Private Message.

Please check your inbox on the forums page for the private message.

Please mark this post as “Accepted Solution” if the issue is resolved and if you feel this reply was helpful click “Yes”.

Nal_NR-Moderator
I am an HP Employee

DPC issue

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