Intermittent latencymon spikes/audio pops/lagginess

[nio_]

Hello. I've been dealing with a terrible problem between 2 different PCs likely involving latency and other strangeness. This new build I have is an i9 10900k RTX 2060 with an ASUS ROG z490 - e Strix motherboard. I noticed immediately upon starting windows that the system did not feel as responsive as it should. Pages and applications that should start at about the instant I click them take about half a second to actually show up. I checked latencymon and for some reason there is a spike at highest measured interrupt to process latency at around 760-790 us that happens intermittently every few minutes for no reason. Sometimes the highest reported DPC execution also goes to ~770 us and either shows up as ndis.sys or storport.sys or ntsokrnl.

Before having the z490-e motherboard, I switched from a Gigabyte Z490 VISION D(which I preferred) and the problem still existed which leads me to believe that either there is some form of driver conflict, or maybe an extremely rare case of improper grounding? Maybe the router? I also changed GPUs from a 1660ti to my now brand new 2060, issue persists. Here is a latencymon report that I ran for 17 minutes with the system relatively idle (couple tabs open on chrome). And I will also drop the report.

 

[nio_]

_________________________________________________________________________________________________________
CONCLUSION
_________________________________________________________________________________________________________
Your system appears to be suitable for handling real-time audio and other tasks without dropouts.
LatencyMon has been analyzing your system for 0:17:19 (h:mm:ss) on all processors.


_________________________________________________________________________________________________________
SYSTEM INFORMATION
_________________________________________________________________________________________________________
Computer name: DESKTOP-CBHSS6I
OS version: Windows 10 , 10.0, build: 18363 (x64)
Hardware: ASUS, ASUSTeK COMPUTER INC., ROG STRIX Z490-E GAMING
CPU: GenuineIntel Intel(R) Core(TM) i9-10900K CPU @ 3.70GHz
Logical processors: 20
Processor groups: 1
RAM: 32666 MB total


_________________________________________________________________________________________________________
CPU SPEED
_________________________________________________________________________________________________________
Reported CPU speed: 3696 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.



_________________________________________________________________________________________________________
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): 778.70
Average measured interrupt to process latency (µs): 1.754244

Highest measured interrupt to DPC latency (µs): 777.0
Average measured interrupt to DPC latency (µs): 0.704742


_________________________________________________________________________________________________________
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): 64.962662
Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

Highest reported total ISR routine time (%): 0.001878
Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

Total time spent in ISRs (%) 0.002073

ISR count (execution time <250 µs): 102507
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


_________________________________________________________________________________________________________
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): 324.232684
Driver with highest DPC routine execution time: ntoskrnl.exe - NT Kernel & System, Microsoft Corporation

Highest reported total DPC routine time (%): 0.005006
Driver with highest DPC total execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation

Total time spent in DPCs (%) 0.011745

DPC count (execution time <250 µs): 1825809
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 1
DPC count (execution time 1000-1999 µs): 0
DPC count (execution time 2000-3999 µs): 0
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: latmon.exe

Total number of hard pagefaults 43
Hard pagefault count of hardest hit process: 15
Number of processes hit: 11


_________________________________________________________________________________________________________
PER CPU DATA
_________________________________________________________________________________________________________
CPU 0 Interrupt cycle time (s): 11.400702
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): 68.651515
CPU 0 DPC total execution time (s): 1.004158
CPU 0 DPC count: 1661866
_________________________________________________________________________________________________________
CPU 1 Interrupt cycle time (s): 4.101705
CPU 1 ISR highest execution time (µs): 0.0
CPU 1 ISR total execution time (s): 0.0
CPU 1 ISR count: 0
CPU 1 DPC highest execution time (µs): 1.707251
CPU 1 DPC total execution time (s): 0.000005
CPU 1 DPC count: 4
_________________________________________________________________________________________________________
CPU 2 Interrupt cycle time (s): 4.338506
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): 30.589286
CPU 2 DPC total execution time (s): 0.049013
CPU 2 DPC count: 25351
_________________________________________________________________________________________________________
CPU 3 Interrupt cycle time (s): 4.138617
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): 7.121212
CPU 3 DPC total execution time (s): 0.000014
CPU 3 DPC count: 6
_________________________________________________________________________________________________________
CPU 4 Interrupt cycle time (s): 4.785434
CPU 4 ISR highest execution time (µs): 51.939394
CPU 4 ISR total execution time (s): 0.043526
CPU 4 ISR count: 2027
CPU 4 DPC highest execution time (µs): 71.207251
CPU 4 DPC total execution time (s): 0.013158
CPU 4 DPC count: 5105
_________________________________________________________________________________________________________
CPU 5 Interrupt cycle time (s): 10.716171
CPU 5 ISR highest execution time (µs): 64.962662
CPU 5 ISR total execution time (s): 0.364230
CPU 5 ISR count: 26794
CPU 5 DPC highest execution time (µs): 68.288420
CPU 5 DPC total execution time (s): 0.310296
CPU 5 DPC count: 49713
_________________________________________________________________________________________________________
CPU 6 Interrupt cycle time (s): 4.077699
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): 324.232684
CPU 6 DPC total execution time (s): 0.003143
CPU 6 DPC count: 1375
_________________________________________________________________________________________________________
CPU 7 Interrupt cycle time (s): 4.228926
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): 6.379870
CPU 7 DPC total execution time (s): 0.000063
CPU 7 DPC count: 37
_________________________________________________________________________________________________________
CPU 8 Interrupt cycle time (s): 4.147276
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): 25.443182
CPU 8 DPC total execution time (s): 0.001973
CPU 8 DPC count: 936
_________________________________________________________________________________________________________
CPU 9 Interrupt cycle time (s): 4.243493
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): 19.477273
CPU 9 DPC total execution time (s): 0.000177
CPU 9 DPC count: 54
_________________________________________________________________________________________________________
CPU 10 Interrupt cycle time (s): 4.199952
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): 24.009740
CPU 10 DPC total execution time (s): 0.002042
CPU 10 DPC count: 1003
_________________________________________________________________________________________________________
CPU 11 Interrupt cycle time (s): 4.196880
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): 8.100108
CPU 11 DPC total execution time (s): 0.000099
CPU 11 DPC count: 67
_________________________________________________________________________________________________________
CPU 12 Interrupt cycle time (s): 4.111315
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): 23.593615
CPU 12 DPC total execution time (s): 0.004474
CPU 12 DPC count: 2131
_________________________________________________________________________________________________________
CPU 13 Interrupt cycle time (s): 4.146601
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): 9.773268
CPU 13 DPC total execution time (s): 0.000285
CPU 13 DPC count: 153
_________________________________________________________________________________________________________
CPU 14 Interrupt cycle time (s): 4.196639
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): 24.318723
CPU 14 DPC total execution time (s): 0.001696
CPU 14 DPC count: 720
_________________________________________________________________________________________________________
CPU 15 Interrupt cycle time (s): 4.137630
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): 7.950758
CPU 15 DPC total execution time (s): 0.000035
CPU 15 DPC count: 15
_________________________________________________________________________________________________________
CPU 16 Interrupt cycle time (s): 4.305692
CPU 16 ISR highest execution time (µs): 1.781926
CPU 16 ISR total execution time (s): 0.000349
CPU 16 ISR count: 634
CPU 16 DPC highest execution time (µs): 35.509199
CPU 16 DPC total execution time (s): 0.012108
CPU 16 DPC count: 2106
_________________________________________________________________________________________________________
CPU 17 Interrupt cycle time (s): 12.116189
CPU 17 ISR highest execution time (µs): 19.808983
CPU 17 ISR total execution time (s): 0.022665
CPU 17 ISR count: 73052
CPU 17 DPC highest execution time (µs): 51.224567
CPU 17 DPC total execution time (s): 1.03670
CPU 17 DPC count: 74718
_________________________________________________________________________________________________________
CPU 18 Interrupt cycle time (s): 4.009695
CPU 18 ISR highest execution time (µs): 0.0
CPU 18 ISR total execution time (s): 0.0
CPU 18 ISR count: 0
CPU 18 DPC highest execution time (µs): 10.632576
CPU 18 DPC total execution time (s): 0.000779
CPU 18 DPC count: 337
_________________________________________________________________________________________________________
CPU 19 Interrupt cycle time (s): 4.240151
CPU 19 ISR highest execution time (µs): 0.0
CPU 19 ISR total execution time (s): 0.0
CPU 19 ISR count: 0
CPU 19 DPC highest execution time (µs): 9.830087
CPU 19 DPC total execution time (s): 0.000389
CPU 19 DPC count: 113
_________________________________________________________________________________________________________