High DPC latecy

Patikekfad

New member
Joined
Feb 15, 2018
Posts
1
Hi guys,

Recently I have been having serious issues with my audio, mostly stutters and dropouts

I've already tried the following:
-Latest BIOS update,
-Reinstalled/updated drivers, even rolled back a couple of times,
-Disable all enhancements.

I've included my DxDiag, and I also ran a LatencyMon run:

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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. 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 0:05:11 (h:mm:ss) on all processors.




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SYSTEM INFORMATION
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Computer name: GAME-PC
OS version: Windows 10 , 10.0, build: 16299 (x64)
Hardware: MS-7850, MSI, Z97 PC Mate(MS-7850)
CPU: GenuineIntel Intel(R) Pentium(R) CPU G3258 @ 3.20GHz
Logical processors: 2
Processor groups: 1
RAM: 8143 MB total




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CPU SPEED
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Reported CPU speed: 320 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): 101286,339293
Average measured interrupt to process latency (µs): 14,780613


Highest measured interrupt to DPC latency (µs): 101053,378697
Average measured interrupt to DPC latency (µs): 13,485704




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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): 135,230
Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation


Highest reported total ISR routine time (%): 0,235341
Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation


Total time spent in ISRs (%) 0,280384


ISR count (execution time <250 µs): 151486
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): 101062,620
Driver with highest DPC routine execution time: storport.sys - Microsoft Storage Port Driver, Microsoft Corporation


Highest reported total DPC routine time (%): 4,216961
Driver with highest DPC total execution time: storport.sys - Microsoft Storage Port Driver, Microsoft Corporation


Total time spent in DPCs (%) 4,500411


DPC count (execution time <250 µs): 1056690
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




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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): 30,899647
CPU 0 ISR highest execution time (µs): 135,230
CPU 0 ISR total execution time (s): 1,747512
CPU 0 ISR count: 151382
CPU 0 DPC highest execution time (µs): 101062,620
CPU 0 DPC total execution time (s): 27,939901
CPU 0 DPC count: 1020950
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CPU 1 Interrupt cycle time (s): 0,689972
CPU 1 ISR highest execution time (µs): 86,391563
CPU 1 ISR total execution time (s): 0,001383
CPU 1 ISR count: 104
CPU 1 DPC highest execution time (µs): 110,440938
CPU 1 DPC total execution time (s): 0,131411
CPU 1 DPC count: 36000
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I overclocked my CPU to 4.0 Ghz. If there's additional info needed, please tell me so I can fix this mess
 

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