[SOLVED] High DPC latency and popping noises

[PC Cheah]

Yes, I also ticked the HDAudbus.sys

 

[xilolee]

Is that still enabled?
No problems after about 45 hours?

 

[PC Cheah]

The verifier is still running
No problem

 

[xilolee]

:thud:

Re-try with these verifier custom settings:

• all standard flags (you can click the flag type column to sort the flags)
• these additional flags:
  • Power framework delay fuzzing.
  • DDI compliance checking (additional)
  • NDIS/WIFI verification
  • Kernel synchronization delay fuzzing
  • Code integrity checks
• automatically select all drivers installed

To reset verifier settings in case something goes wrong, reboot to safe mode and type verifier /reset from an elevated command prompt.

Remember the precautions: system restore point, system image, windows cd at hand... In case the safe boot from the machine won't start.

 

[PC Cheah]

Finally an instant BSOD loop after booting.
Here's the dump file

Read More:

https://yesmy-my.sharepoint.com/per...b0c202de222d3&authkey=AQhCHRqBBRcIsGDKTFHakGM

 

[xilolee]

It seems it's part of MSI GAMING app.
Is it installed?
Try to uninstall it.

 

[PC Cheah]

I still get the Verifier Detectd Violation BSOD after uninstalling it.
Another dump file

Read More:

https://yesmy-my.sharepoint.com/per...cf9684e83a7c6&authkey=ATfdVsUvcSm8Us9_Ok5lG-0

 

[xilolee]

Try to disable verifier and see if the problem has gone away.
Fingers crossed

 

[PC Cheah]

forgot to mention, I ran another Verifier and still get a bsod after uninstalling the gaming app.
Just wondering which driver causes the verifier to force a bsod.

 

[xilolee]

I saw the latest bsod, but it points to a MS driver.

If the problem hasn't gone away (with verifier disabled), I'd run another verifier session: this time enable all verifier checks and select all drivers but Microsoft ones.

 

[PC Cheah]

Enable all verifier checks and all driver but Microsoft...
reboot...bsod...
another dump file:

Read More:

https://yesmy-my.sharepoint.com/per...cebb653f3de84&authkey=AddRngumTdYcL1vuU-29Gr4

 

[xilolee]

Uhm... When I told you to set bios default settings, I forgot you have to "underclock" your RAM speed...
What setting has been selected by your MB (for your RAM frequency)?
Your CPU specs "say" you should set it to DDR4-1866 or DDR4-2133.

 

[PC Cheah]

The RAM I have has a XMP profile (I have enabled XMP), but the motherboard setting is set to 2133Mhz, while RAM in the Task manager shows 2400Mhz...

 

[xilolee]

Try to turn off the xmp profile, then see what settings will be set (in your MB and in task manager).

 

[PC Cheah]

After I disabled the XMP all the settings are set to AUTO.
The speed in task manager show 2400MHZ BUT CPU-Z SHOWS 2133Mhz...

 

[xilolee]

Ok... Issue still present?

 

[PC Cheah]

I think so....

Read More:

_________________________________________________________________________________________________________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. Also one or more ISR routines that belong to a driver running in your system appear to be executing for too long. At least one detected problem appears to be network related. In case you are using a WLAN adapter, try disabling it to get better results. 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 0:06:14 (h:mm:ss) on all processors.




_________________________________________________________________________________________________________
SYSTEM INFORMATION
_________________________________________________________________________________________________________
Computer name: PC_CHEAH-DPC
OS version: Windows 10 , 10.0, build: 14393 (x64)
Hardware: ASUSTeK COMPUTER INC., H170 PRO GAMING
CPU: GenuineIntel Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz
Logical processors: 4
Processor groups: 1
RAM: 8132 MB total




_________________________________________________________________________________________________________
CPU SPEED
_________________________________________________________________________________________________________
Reported CPU speed: 3192 MHz
Measured CPU speed: 1 MHz (approx.)


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.






_________________________________________________________________________________________________________
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): 2966.779322
Average measured interrupt to process latency (µs): 5.009232


Highest measured interrupt to DPC latency (µs): 2879.521106
Average measured interrupt to DPC latency (µs): 1.669164




_________________________________________________________________________________________________________
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): 2872.934524
Driver with highest ISR routine execution time: HDAudBus.sys - High Definition Audio Bus Driver, Microsoft Corporation


Highest reported total ISR routine time (%): 0.23740
Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation


Total time spent in ISRs (%) 0.301715


ISR count (execution time <250 µs): 291223
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): 2
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): 2806.867481
Driver with highest DPC routine execution time: ndis.sys - Network Driver Interface Specification (NDIS), Microsoft Corporation


Highest reported total DPC routine time (%): 0.094138
Driver with highest DPC total execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation


Total time spent in DPCs (%) 0.478679


DPC count (execution time <250 µs): 1899907
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 5
DPC count (execution time 1000-1999 µs): 0
DPC count (execution time 2000-3999 µs): 3
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 2082
Hard pagefault count of hardest hit process: 407
Highest hard pagefault resolution time (µs): 156356.070802
Total time spent in hard pagefaults (%): 0.324641
Number of processes hit: 30




_________________________________________________________________________________________________________
PER CPU DATA
_________________________________________________________________________________________________________
CPU 0 Interrupt cycle time (s): 20.785606
CPU 0 ISR highest execution time (µs): 2872.934524
CPU 0 ISR total execution time (s): 4.482731
CPU 0 ISR count: 286170
CPU 0 DPC highest execution time (µs): 2806.867481
CPU 0 DPC total execution time (s): 5.554932
CPU 0 DPC count: 1668186
_________________________________________________________________________________________________________
CPU 1 Interrupt cycle time (s): 11.714087
CPU 1 ISR highest execution time (µs): 185.112469
CPU 1 ISR total execution time (s): 0.031284
CPU 1 ISR count: 5047
CPU 1 DPC highest execution time (µs): 290.171679
CPU 1 DPC total execution time (s): 0.745798
CPU 1 DPC count: 135042
_________________________________________________________________________________________________________
CPU 2 Interrupt cycle time (s): 10.488382
CPU 2 ISR highest execution time (µs): 3.068296
CPU 2 ISR total execution time (s): 0.000016
CPU 2 ISR count: 8
CPU 2 DPC highest execution time (µs): 253.263784
CPU 2 DPC total execution time (s): 0.470571
CPU 2 DPC count: 51683
_________________________________________________________________________________________________________
CPU 3 Interrupt cycle time (s): 9.409942
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): 242.678258
CPU 3 DPC total execution time (s): 0.390324
CPU 3 DPC count: 45004
_________________________________________________________________________________________________________

 

[xilolee]

Did you reset verifier settings?
Try to disable intel speedstep and to enable spread spectrum (in your BIOS).

 

[PC Cheah]

still the same.

I dont think disabling the speedstep help and I think it eats more power.

 

[xilolee]

Are you using the red usb port near the vga port (rear panel)?
Or the blue usb ports under the rj45 port?
And what things are you connecting to them?

Try to download/install the Netw. Adap. Driver for W8.1 (x86/x64) (product webpage) --> PROWinx64.exe (download webpage)