High DPC latency issues

[Pipi8]

Specs:

 

Win 10 home 64bit

bios version 7.40

i5 6600k

16gb(2x8gb) ddr4 hyperx savage

ASRock H170 Pro4S

2gb NVIDIA GeForce GTX 960 (Gigabyte)

120gb kingston ssd

1tb western digital blue hdd

600w psu

 

What I tried so far:

 

ABSOLUTELY EVERYTHING

fresh install of win10

fresh install of win7

updating to latest drivers

clean uninstall and install of new drivers

downgrading drivers

many commands and registry edits

updating bios

power management options

disabling and enabling certain devices

turning it off and on again

etc..

 

Please help

 

Spoiler

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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. 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  0:31:24  (h:mm:ss) on all processors.

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SYSTEM INFORMATION
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Computer name:                                        DESKTOP-42RVD5O
OS version:                                           Windows 10 , 10.0, build: 16299 (x64)
Hardware:                                             ASRock, H170 Pro4S
CPU:                                                  GenuineIntel Intel(R) Core(TM) i5-6600K CPU @ 3.50GHz
Logical processors:                                   4
Processor groups:                                     1
RAM:                                                  16317 MB total

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CPU SPEED
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Reported CPU speed:                                   3504 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.

 

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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):   245973,913102
Average measured interrupt to process latency (µs):   8,473781

Highest measured interrupt to DPC latency (µs):       245958,132262
Average measured interrupt to DPC latency (µs):       4,767001

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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):              241740,496575
Driver with highest ISR routine execution time:       dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

Highest reported total ISR routine time (%):          0,850748
Driver with highest ISR total time:                   ndis.sys - Network Driver Interface Specification (NDIS), Microsoft Corporation

Total time spent in ISRs (%)                          1,155291

ISR count (execution time <250 µs):                   3921927
ISR count (execution time 250-500 µs):                0
ISR count (execution time 500-999 µs):                6
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):              245961,599315
Driver with highest DPC routine execution time:       ndis.sys - Network Driver Interface Specification (NDIS), Microsoft Corporation

Highest reported total DPC routine time (%):          1,232085
Driver with highest DPC total execution time:         ndis.sys - Network Driver Interface Specification (NDIS), Microsoft Corporation

Total time spent in DPCs (%)                          1,592653

DPC count (execution time <250 µs):                   7437857
DPC count (execution time 250-500 µs):                0
DPC count (execution time 500-999 µs):                195
DPC count (execution time 1000-1999 µs):              3
DPC count (execution time 2000-3999 µs):              3
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.

Process with highest pagefault count:                 none

Total number of hard pagefaults                       0
Hard pagefault count of hardest hit process:          0
Highest hard pagefault resolution time (µs):          0,0
Total time spent in hard pagefaults (%):              0,0
Number of processes hit:                              0

_________________________________________________________________________________________________________
 PER CPU DATA
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CPU 0 Interrupt cycle time (s):                       199,115885
CPU 0 ISR highest execution time (µs):                241740,496575
CPU 0 ISR total execution time (s):                   76,054435
CPU 0 ISR count:                                      3416543
CPU 0 DPC highest execution time (µs):                245961,599315
CPU 0 DPC total execution time (s):                   105,268108
CPU 0 DPC count:                                      5802631
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CPU 1 Interrupt cycle time (s):                       27,573574
CPU 1 ISR highest execution time (µs):                120933,386416
CPU 1 ISR total execution time (s):                   9,846983
CPU 1 ISR count:                                      406322
CPU 1 DPC highest execution time (µs):                169285,791096
CPU 1 DPC total execution time (s):                   7,459161
CPU 1 DPC count:                                      787719
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CPU 2 Interrupt cycle time (s):                       18,692813
CPU 2 ISR highest execution time (µs):                193440,420091
CPU 2 ISR total execution time (s):                   1,186006
CPU 2 ISR count:                                      94701
CPU 2 DPC highest execution time (µs):                48435,673516
CPU 2 DPC total execution time (s):                   5,031917
CPU 2 DPC count:                                      521210
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CPU 3 Interrupt cycle time (s):                       14,416101
CPU 3 ISR highest execution time (µs):                60,632420
CPU 3 ISR total execution time (s):                   0,014992
CPU 3 ISR count:                                      4534
CPU 3 DPC highest execution time (µs):                24206,184932
CPU 3 DPC total execution time (s):                   2,317901
CPU 3 DPC count:                                      326581
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[Randy R]

If I had to guess, your network port may be causing the issues.

[Pipi8]

So apparently i fixed this problem by switching my gpu to a different pcie slot, im glad i fixed the issue but i dont get it why would simply changing the pcie slot fix it?

edit: i also removed my wireless pcie card

Edited May 16, 2018 by Pipi8
forgot to add what i did