Windows 10: High DPC Latency storport.sys audio lag, pc lag, stutter

Hello Community,


I need help. I have high Dpc Latency cause of the storport.sys driver. What can I do?

My Specs are:
Amd ryzen 5 1600

16gb ddr4

gtx 1060 6gb ram

biostar amd 320 pro

RoHs SSD 256gb

1 Tb HDD


Here are some Stats:

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 0:00:36 h:mm:ss on all processors.





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SYSTEM INFORMATION

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Computer name: DESKTOP-UUP8I2F

OS version: Windows 10 , 10.0, build: 19041 x64

Hardware: A320MD PRO, BIOSTAR Group

CPU: AuthenticAMD AMD Ryzen 5 1600 Six-Core Processor

Logical processors: 12

Processor groups: 1

RAM: 16335 MB total





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CPU SPEED

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Reported CPU speed: 3194 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: 100991,80

Average measured interrupt to process latency µs: 363,784892



Highest measured interrupt to DPC latency µs: 100920,80

Average measured interrupt to DPC latency µs: 359,815226





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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: 148,308078

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



Highest reported total ISR routine time %: 0,023193

Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation



Total time spent in ISRs % 0,024598



ISR count execution time <250 µs: 7453

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: 101053,324984

Driver with highest DPC routine execution time: storport.sys - Microsoft Storage Port Driver, Microsoft Corporation



Highest reported total DPC routine time %: 1,009032

Driver with highest DPC total execution time: storport.sys - Microsoft Storage Port Driver, Microsoft Corporation



Total time spent in DPCs % 1,062218



DPC count execution time <250 µs: 19833

DPC count execution time 250-500 µs: 0

DPC count execution time 500-999 µs: 2

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.



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: msmpeng.exe



Total number of hard pagefaults 1215

Hard pagefault count of hardest hit process: 1104

Number of processes hit: 6





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PER CPU DATA

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CPU 0 Interrupt cycle time s: 3,806606

CPU 0 ISR highest execution time µs: 148,308078

CPU 0 ISR total execution time s: 0,107575

CPU 0 ISR count: 6795

CPU 0 DPC highest execution time µs: 101053,324984

CPU 0 DPC total execution time s: 2,227735

CPU 0 DPC count: 16825

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CPU 1 Interrupt cycle time s: 0,175504

CPU 1 ISR highest execution time µs: 2,815279

CPU 1 ISR total execution time s: 0,000128

CPU 1 ISR count: 120

CPU 1 DPC highest execution time µs: 57,968691

CPU 1 DPC total execution time s: 0,003667

CPU 1 DPC count: 227

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CPU 2 Interrupt cycle time s: 3,925069

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: 100984,305573

CPU 2 DPC total execution time s: 1,722477

CPU 2 DPC count: 915

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CPU 3 Interrupt cycle time s: 0,371533

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: 37,850971

CPU 3 DPC total execution time s: 0,000609

CPU 3 DPC count: 125

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CPU 4 Interrupt cycle time s: 2,095909

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: 100949,079524

CPU 4 DPC total execution time s: 0,408828

CPU 4 DPC count: 642

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CPU 5 Interrupt cycle time s: 0,157201

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: 27,601753

CPU 5 DPC total execution time s: 0,000339

CPU 5 DPC count: 60

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CPU 6 Interrupt cycle time s: 0,768549

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: 108,082655

CPU 6 DPC total execution time s: 0,002857

CPU 6 DPC count: 236

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CPU 7 Interrupt cycle time s: 0,046462

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: 18,194114

CPU 7 DPC total execution time s: 0,000323

CPU 7 DPC count: 61

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CPU 8 Interrupt cycle time s: 0,969085

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: 40,285535

CPU 8 DPC total execution time s: 0,001450

CPU 8 DPC count: 226

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CPU 9 Interrupt cycle time s: 0,160643

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: 100847,899812

CPU 9 DPC total execution time s: 0,101559

CPU 9 DPC count: 183

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CPU 10 Interrupt cycle time s: 0,661887

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: 100851,216030

CPU 10 DPC total execution time s: 0,102419

CPU 10 DPC count: 243

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CPU 11 Interrupt cycle time s: 1,080434

CPU 11 ISR highest execution time µs: 4,999374

CPU 11 ISR total execution time s: 0,000543

CPU 11 ISR count: 538

CPU 11 DPC highest execution time µs: 100943,869756

CPU 11 DPC total execution time s: 0,102178

CPU 11 DPC count: 136

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:)

 

High DPC latency causing audio stutters

Quite different hardware but this may have your attention.

Sound artifacts and high DPC latency seemingly related to storport driver can be caused by switching between Cx power saving processor states. My pci-express add-on soundcard works correctly only if C states greater than C1 are disabled:





If you want to give it a try, see your mobo manual:

 

High DPC latency causing audio stutters

This is latency mon while my system is idling:
Attachment 226387

This is latency mon while I've opened chrome&Steam:

 

Audio stuttering/buzzing and storport.sys high dpc latency

I've only had this audio issue for a few weeks already after I did a custom windows 10 install bc of a previous problem. I've also posted twice about this but no one has helped me yet. I'll post the following possible solutions and suggestions that
I've already done to avoid repeated answers

I did: audio troubleshooter, uninstalled then reinstalled audio drivers, disabled audio enhancements and tried different audio quality under the advanced tab.


After more searching online I tried using DPC Latency Checker (and then LatencyMon to be more detailed) since I read that having high dpc latency can cause problems with real time audio among other things. Apparently
storport.sys is the problem? I literally just have basic knowledge about anything regarding this kind of stuff and I don't have any clue on how to fix this so I just hope someone can help me and give me steps by steps suggestions on how I can solve this. my
audio has just been driving me crazy with those stuttering sounds and I don't want it to worsen.

I would also like to know if having
Ricoh SD/MMC Host Controller and nothing else aside from that, under
IDE ATA/ATAPI controllers, is okay and won't cause problems?

please, I hope someone can help and answer this time around!