High DPC latency

[xiaomantou]

Common experiences.

I did almost everything I could found but no help.

Acpi.sys used by Microsoft ACPI-Compliant System updated by Microsoft, disable or uninstall it will case windows boot failure.(Boot to safe mode first will solve this problem) 

Battery is totally dead, my notebook will make sound when start or wake up it, happened at other times, maybe related to device detection,  I can't tell, it really like mechanical, short but loud for me.

Bios update might be the final solution, so I am here, please help, Thanks!

LatencyMon report down below.

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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 0:00:29 (h:mm:ss) on all processors.

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SYSTEM INFORMATION
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Computer name: HP-PAVILION
OS version: Windows 10 , 10.0, build: 18363 (x64)
Hardware: HP Pavilion Gaming Notebook, HP, 80A9
CPU: GenuineIntel Intel(R) Core(TM) i5-6300HQ CPU @ 2.30GHz
Logical processors: 4
Processor groups: 1
RAM: 12126 MB total

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CPU SPEED
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Reported CPU speed: 2304 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): 835.10
Average measured interrupt to process latency (µs): 6.160461

Highest measured interrupt to DPC latency (µs): 813.10
Average measured interrupt to DPC latency (µs): 1.681881

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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): 138.859375
Driver with highest ISR routine execution time: ACPI.sys - ACPI Driver for NT, Microsoft Corporation

Highest reported total ISR routine time (%): 0.008054
Driver with highest ISR total time: ACPI.sys - ACPI Driver for NT, Microsoft Corporation

Total time spent in ISRs (%) 0.012849

ISR count (execution time <250 µs): 2796
ISR count (execution time 250-500 µs): 0
ISR count (execution time 500-999 µs): 0
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): 2987.351563
Driver with highest DPC routine execution time: ACPI.sys - ACPI Driver for NT, Microsoft Corporation

Highest reported total DPC routine time (%): 0.072510
Driver with highest DPC total execution time: rspLLL64.sys - Resplendence Latency Monitoring and Auxiliary Kernel Library, Resplendence Software Projects Sp.

Total time spent in DPCs (%) 0.349825

DPC count (execution time <250 µs): 91367
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 71
DPC count (execution time 1000-1999 µs): 1
DPC count (execution time 2000-3999 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: steamservice.exe

Total number of hard pagefaults 48
Hard pagefault count of hardest hit process: 8
Number of processes hit: 18

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PER CPU DATA
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CPU 0 Interrupt cycle time (s): 2.386493
CPU 0 ISR highest execution time (µs): 138.859375
CPU 0 ISR total execution time (s): 0.013782
CPU 0 ISR count: 1840
CPU 0 DPC highest execution time (µs): 2987.351563
CPU 0 DPC total execution time (s): 0.347703
CPU 0 DPC count: 87673
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CPU 1 Interrupt cycle time (s): 0.806386
CPU 1 ISR highest execution time (µs): 17.934896
CPU 1 ISR total execution time (s): 0.000679
CPU 1 ISR count: 559
CPU 1 DPC highest execution time (µs): 676.6250
CPU 1 DPC total execution time (s): 0.020746
CPU 1 DPC count: 1435
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CPU 2 Interrupt cycle time (s): 0.588757
CPU 2 ISR highest execution time (µs): 21.410590
CPU 2 ISR total execution time (s): 0.000363
CPU 2 ISR count: 310
CPU 2 DPC highest execution time (µs): 406.382813
CPU 2 DPC total execution time (s): 0.018367
CPU 2 DPC count: 1308
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CPU 3 Interrupt cycle time (s): 1.195661
CPU 3 ISR highest execution time (µs): 2.713542
CPU 3 ISR total execution time (s): 0.000089
CPU 3 ISR count: 87
CPU 3 DPC highest execution time (µs): 267.440972
CPU 3 DPC total execution time (s): 0.019204
CPU 3 DPC count: 1024
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[The_Fossette]

@xiaomantou,

I reviewed your post and I understand that the computer is not booting to Windows.

Don’t worry, I assure you I will try my best to get this sorted.

Do you remember after what Windows update the touchscreen stopped working?

I recommend you update the BIOS from the below link and check.

https://support.hp.com/in-en/drivers

If you continue facing the issue, then follow the steps in the below article and perform a system reset.

https://support.hp.com/nz-en/document/c04742289

Let me know how it goes and you have a great day!

P.S: Welcome to the HP Support Community 😊

If you wish to show appreciation for my efforts, mark my post as Accept as Solution. Your feedback counts!

Cheers!

[xiaomantou]

I said 'Boot to safe mode first will solve this problem', so I fixed it already .

The question is DPC latency which I can't fix, and the Realtek High Definition Audio driver is outdate, I request an update.

Thanks.

[The_Fossette]

@xiaomantou,

Perfect, I am really glad to hear that!

I recommend you keep an eye on the HP website and all the updates for the drivers are updated/uploaded on the HP website.

Below is the link for the drivers for your computer.

https://support.hp.com/us-en/drivers/selfservice/hp-pavilion-gaming-15-ak000-notebook/8610971/model/...

Cheers!