High lattency and cracking sound when playing real-time audio and video and CPU is slow

D

DamjanStojanovski1

Hi


I have a freshly build PC with the following configuration: (First pic bellow)

I have had troubles with some (blue screen of death errors) these days ( second picture bellow WhoCrashed)

Then I updated my drivers and the errors reduced but i still have cracking sound and video and audio out of sync when playing live videos (Youtube).


Then I ran LatencyMon and the results were:


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. 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 0:05:22 (h:mm:ss) on all processors.





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SYSTEM INFORMATION

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Computer name: DESKTOP-JNJ22LC

OS version: Windows 10 , 10.0, build: 18363 (x64)

Hardware: ASUSTeK COMPUTER INC., ROG STRIX B450-F GAMING

CPU: AuthenticAMD AMD Ryzen 5 3600 6-Core Processor

Logical processors: 12

Processor groups: 1

RAM: 16310 MB total





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CPU SPEED

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Reported CPU speed: 360 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): 20613.10

Average measured interrupt to process latency (µs): 10.653466



Highest measured interrupt to DPC latency (µs): 20607.40

Average measured interrupt to DPC latency (µs): 6.332420





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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): 82.520

Driver with highest ISR routine execution time: ntoskrnl.exe - NT Kernel & System, Microsoft Corporation



Highest reported total ISR routine time (%): 0.007934

Driver with highest ISR total time: ntoskrnl.exe - NT Kernel & System, Microsoft Corporation



Total time spent in ISRs (%) 0.008587



ISR count (execution time <250 µs): 42533

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): 27914.160

Driver with highest DPC routine execution time: ndis.sys - Network Driver Interface Specification (NDIS), Microsoft Corporation



Highest reported total DPC routine time (%): 0.141193

Driver with highest DPC total execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation



Total time spent in DPCs (%) 0.444652



DPC count (execution time <250 µs): 778750

DPC count (execution time 250-500 µs): 0

DPC count (execution time 500-999 µs): 17048

DPC count (execution time 1000-1999 µs): 121

DPC count (execution time 2000-3999 µs): 60

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: perfwatson2.exe



Total number of hard pagefaults 27194

Hard pagefault count of hardest hit process: 18795

Number of processes hit: 21





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PER CPU DATA

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CPU 0 Interrupt cycle time (s): 22.787251

CPU 0 ISR highest execution time (µs): 82.520

CPU 0 ISR total execution time (s): 0.156466

CPU 0 ISR count: 22512

CPU 0 DPC highest execution time (µs): 19336.220

CPU 0 DPC total execution time (s): 8.666823

CPU 0 DPC count: 562835

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CPU 1 Interrupt cycle time (s): 14.557429

CPU 1 ISR highest execution time (µs): 42.750

CPU 1 ISR total execution time (s): 0.081105

CPU 1 ISR count: 5089

CPU 1 DPC highest execution time (µs): 15605.680

CPU 1 DPC total execution time (s): 1.622277

CPU 1 DPC count: 25236

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CPU 2 Interrupt cycle time (s): 12.602182

CPU 2 ISR highest execution time (µs): 77.340

CPU 2 ISR total execution time (s): 0.075728

CPU 2 ISR count: 4362

CPU 2 DPC highest execution time (µs): 27914.160

CPU 2 DPC total execution time (s): 1.429423

CPU 2 DPC count: 26734

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CPU 3 Interrupt cycle time (s): 12.377236

CPU 3 ISR highest execution time (µs): 27.980

CPU 3 ISR total execution time (s): 0.009545

CPU 3 ISR count: 716

CPU 3 DPC highest execution time (µs): 17323.10

CPU 3 DPC total execution time (s): 0.434953

CPU 3 DPC count: 27054

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CPU 4 Interrupt cycle time (s): 12.841308

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): 9087.010

CPU 4 DPC total execution time (s): 0.696490

CPU 4 DPC count: 31466

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CPU 5 Interrupt cycle time (s): 11.271110

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): 405.010

CPU 5 DPC total execution time (s): 0.443916

CPU 5 DPC count: 20921

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CPU 6 Interrupt cycle time (s): 15.741365

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): 498.40

CPU 6 DPC total execution time (s): 0.512179

CPU 6 DPC count: 18534

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CPU 7 Interrupt cycle time (s): 14.621041

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): 442.160

CPU 7 DPC total execution time (s): 0.189971

CPU 7 DPC count: 5593

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CPU 8 Interrupt cycle time (s): 17.954542

CPU 8 ISR highest execution time (µs): 3.840

CPU 8 ISR total execution time (s): 0.003874

CPU 8 ISR count: 4728

CPU 8 DPC highest execution time (µs): 475.480

CPU 8 DPC total execution time (s): 1.647292

CPU 8 DPC count: 28247

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CPU 9 Interrupt cycle time (s): 16.194511

CPU 9 ISR highest execution time (µs): 3.670

CPU 9 ISR total execution time (s): 0.000506

CPU 9 ISR count: 498

CPU 9 DPC highest execution time (µs): 504.120

CPU 9 DPC total execution time (s): 0.810674

CPU 9 DPC count: 16586

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CPU 10 Interrupt cycle time (s): 16.067740

CPU 10 ISR highest execution time (µs): 4.450

CPU 10 ISR total execution time (s): 0.002527

CPU 10 ISR count: 2722

CPU 10 DPC highest execution time (µs): 405.360

CPU 10 DPC total execution time (s): 0.517363

CPU 10 DPC count: 24493

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CPU 11 Interrupt cycle time (s): 14.852111

CPU 11 ISR highest execution time (µs): 3.810

CPU 11 ISR total execution time (s): 0.002084

CPU 11 ISR count: 1906

CPU 11 DPC highest execution time (µs): 364.620

CPU 11 DPC total execution time (s): 0.210863

CPU 11 DPC count: 8398

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Here is also the CPU tab from LattencyMon:


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b0553678-0883-4fab-957d-6fe59926c326?upload=true.png


a61f7784-c5e3-4e25-988b-ce98357fbde4?upload=true.png

Can you please help me out here?


Thanks

Damjan

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