Windows 10: DPC Latency Caused by Many drivers.

This is a very frustrating issue, and ive tried looking everywhere for fixes but cant find any. Here is some information below and i would appreciate any help. It causes many audio issues and can virtually not listen to any sort of audio.







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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): 11910.935290
Average measured interrupt to process latency (µs): 27.132701

Highest measured interrupt to DPC latency (µs): 11897.807078
Average measured interrupt to DPC latency (µs): 17.903110


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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): 6102.975427
Driver with highest ISR routine execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation

Highest reported total ISR routine time (%): 0.025887
Driver with highest ISR total time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation

Total time spent in ISRs (%) 0.033847

ISR count (execution time <250 µs): 106699
ISR count (execution time 250-500 µs): 0
ISR count (execution time 500-999 µs): 7232
ISR count (execution time 1000-1999 µs): 773
ISR count (execution time 2000-3999 µs): 341
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): 9528.724715
Driver with highest DPC routine execution time: ACPI.sys - ACPI Driver for NT, Microsoft Corporation

Highest reported total DPC routine time (%): 0.108837
Driver with highest DPC total execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation

Total time spent in DPCs (%) 0.224935

DPC count (execution time <250 µs): 2929387
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 16192
DPC count (execution time 1000-1999 µs): 4882
DPC count (execution time 2000-3999 µs): 5093
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: chrome.exe

Total number of hard pagefaults 5067
Hard pagefault count of hardest hit process: 802
Number of processes hit: 59


_________________________________________________________________________________________________________
PER CPU DATA
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CPU 0 Interrupt cycle time (s): 255.852555
CPU 0 ISR highest execution time (µs): 6102.975427
CPU 0 ISR total execution time (s): 8.056281
CPU 0 ISR count: 109980
CPU 0 DPC highest execution time (µs): 9528.724715
CPU 0 DPC total execution time (s): 36.835079
CPU 0 DPC count: 2066222
_________________________________________________________________________________________________________
CPU 1 Interrupt cycle time (s): 177.355297
CPU 1 ISR highest execution time (µs): 2251.754986
CPU 1 ISR total execution time (s): 0.461042
CPU 1 ISR count: 3633
CPU 1 DPC highest execution time (µs): 6272.425214
CPU 1 DPC total execution time (s): 2.430036
CPU 1 DPC count: 32164
_________________________________________________________________________________________________________
CPU 2 Interrupt cycle time (s): 142.480857
CPU 2 ISR highest execution time (µs): 2247.901709
CPU 2 ISR total execution time (s): 0.077677
CPU 2 ISR count: 1278
CPU 2 DPC highest execution time (µs): 4660.060897
CPU 2 DPC total execution time (s): 7.944059
CPU 2 DPC count: 544234
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CPU 3 Interrupt cycle time (s): 130.032397
CPU 3 ISR highest execution time (µs): 1542.794516
CPU 3 ISR total execution time (s): 0.018679
CPU 3 ISR count: 172
CPU 3 DPC highest execution time (µs): 3883.733262
CPU 3 DPC total execution time (s): 0.922848
CPU 3 DPC count: 54186
_________________________________________________________________________________________________________
CPU 4 Interrupt cycle time (s): 157.249216
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): 3823.362536
CPU 4 DPC total execution time (s): 1.570406
CPU 4 DPC count: 44147
_________________________________________________________________________________________________________
CPU 5 Interrupt cycle time (s): 187.377882
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): 2389.255698
CPU 5 DPC total execution time (s): 2.543875
CPU 5 DPC count: 92556
_________________________________________________________________________________________________________
CPU 6 Interrupt cycle time (s): 158.474224
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): 3851.206197
CPU 6 DPC total execution time (s): 2.662644
CPU 6 DPC count: 64703
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CPU 7 Interrupt cycle time (s): 171.610420
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): 3806.676638
CPU 7 DPC total execution time (s): 2.334564
CPU 7 DPC count: 57770
_________________________________________________________________________________________________________

:)

 

DPC Latency High

Hi,

Check these:

Solving DPC Latency Issues - Download Latency Monitor and DPC Latency Checker

https://www.sweetwater.com/sweetcare/articles/solving-dpc-latency-issues/

DPC Latency Checker

http://www.wintuts.com/DPC-Latency-Checker

DPC Latency Checker - Download

http://www.thesycon.de/eng/latency_check.shtml

Hope this helps.

--------------------------------------------------------------------------------------------

Rob Brown -
Microsoft MVP <- profile - Windows and Devices for IT : Bicycle - Mark Twain said it right.

 

Terrible DPC Latency


DPC latency problems are usually caused by bum drivers. The DPC latency checker should give you a hint where to look (if you have a lot of red bars).

 

Windows 10 - High DPC Latency And ISR Cause Audio Dropouts And Lag

The last time I checked DPC Latency Checker wasn't compatible with Win 8/8.1/10. I used a program called Driver Booster to update all my drivers/install additional drivers. Could that be a problem?