Windows 10: WPA - Dpc/isr - Ntoskrnl.exe & acpi.sys

Hi, can anybody help me please with Windows Performance anayzer results please, I have had an issue on my laptop for the best part of 2 years and I have never been able to fix it. each time I open the laptop I have another go at fixing it and just get lost in the amount of things i trial to try to fix it.Laptop:ASUS x541na - GQ234T - Window 10 Home.from the second windows loads task manager shows high CPU usage on both system interruptssometimes upto50% and Systemsometimes upto 30%, these are linked to ACPI.sys and Ntoskrnl.exe so I believe.I have ran WPR and loaded my results in WPA b

:)

 

High DPC/ ISR Latency

Hello community,

So by way of background, for a while now I have experienced issues regarding audio crackles and pops. This primarily occurs when using Cubase 9.5 but also exists outside of the software too, occasionally. After searching for solutions, I came across LatencyMon
and decided to start testing (the results of which can be found below). I should add that when trying it for the past few days, I have noticed that the 'Highest measured interrupt to process latency' changes between HDAudBus.sys and Wdf01000.sys.

Steps I have taken so far:

1) The first thing I did was simply to plug out all of the USB devices that were inserted in my computer one by one. One potentially notable piece of information is that I switched audio interface very recently - from the Focusrite 2i2 to the Audient iD4.
However, I experienced these issues with my last audio interface too. This step produced no differences.

2) I then, through device manager, disabled a huge variety of drivers one by one to see if there was a particular driver causing the issue. This primarily included network, audio and USB drivers. This step produced no differences.

3) Following this I downloaded Driver Booster and tried to update all outdated drives, of which there were many. This step produced no differences.

Pretty sure there were a few other minor things I have tried too such as disabling WiFi, antivirus and more. All produced no result.

More than happy to provide more details if necessary. Any help is greatly appreciated.

LatencyMon:

Code:

_________________________________________________________________________________________________________CONCLUSION_________________________________________________________________________________________________________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  0:04:26  (h:mm:ss) on all processors._________________________________________________________________________________________________________SYSTEM INFORMATION_________________________________________________________________________________________________________Computer name:                                        DESKTOP-9TGICJAOS version:                                           Windows 10 , 10.0, build: 17134 (x64)Hardware:                                             N552VX, ASUSTeK COMPUTER INC.CPU:                                                  GenuineIntel Intel(R) Core(TM) i5-6300HQ CPU @ 2.30GHzLogical processors:                                   4Processor groups:                                     1RAM:                                                  12156 MB total_________________________________________________________________________________________________________CPU SPEED_________________________________________________________________________________________________________Reported CPU speed:                                   2304 MHzNote: 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._________________________________________________________________________________________________________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):   2250.220222Average measured interrupt to process latency (µs):   5.684522Highest measured interrupt to DPC latency (µs):       2190.220275Average measured interrupt to DPC latency (µs):       2.232872_________________________________________________________________________________________________________ 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):              149.830729Driver with highest ISR routine execution time:       HDAudBus.sys - High Definition Audio Bus Driver, Microsoft CorporationHighest reported total ISR routine time (%):          0.021921Driver with highest ISR total time:                   Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft CorporationTotal time spent in ISRs (%)                          0.023631ISR count (execution time <250 µs):                   82832ISR count (execution time 250-500 µs):                0ISR count (execution time 500-999 µs):                0ISR count (execution time 1000-1999 µs):              0ISR count (execution time 2000-3999 µs):              0ISR 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):              1638.547743Driver with highest DPC routine execution time:       Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft CorporationHighest reported total DPC routine time (%):          0.562742Driver with highest DPC total execution time:         Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft CorporationTotal time spent in DPCs (%)                          0.710236DPC count (execution time <250 µs):                   944181DPC count (execution time 250-500 µs):                0DPC count (execution time 500-999 µs):                162DPC count (execution time 1000-1999 µs):              4DPC count (execution time 2000-3999 µs):              0DPC 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:                 winword.exeTotal number of hard pagefaults                       643Hard pagefault count of hardest hit process:          323Number of processes hit:                              18_________________________________________________________________________________________________________ PER CPU DATA_________________________________________________________________________________________________________CPU 0 Interrupt cycle time (s):                       17.051465CPU 0 ISR highest execution time (µs):                149.830729CPU 0 ISR total execution time (s):                   0.251434CPU 0 ISR count:                                      82832CPU 0 DPC highest execution time (µs):                1638.547743CPU 0 DPC total execution time (s):                   7.498538CPU 0 DPC count:                                      938734_________________________________________________________________________________________________________CPU 1 Interrupt cycle time (s):                       6.104686CPU 1 ISR highest execution time (µs):                0.0CPU 1 ISR total execution time (s):                   0.0CPU 1 ISR count:                                      0CPU 1 DPC highest execution time (µs):                227.875868CPU 1 DPC total execution time (s):                   0.026960CPU 1 DPC count:                                      2310_________________________________________________________________________________________________________CPU 2 Interrupt cycle time (s):                       5.310433CPU 2 ISR highest execution time (µs):                0.0CPU 2 ISR total execution time (s):                   0.0CPU 2 ISR count:                                      0CPU 2 DPC highest execution time (µs):                203.476563CPU 2 DPC total execution time (s):                   0.009951CPU 2 DPC count:                                      1081_________________________________________________________________________________________________________CPU 3 Interrupt cycle time (s):                       5.152465CPU 3 ISR highest execution time (µs):                0.0CPU 3 ISR total execution time (s):                   0.0CPU 3 ISR count:                                      0CPU 3 DPC highest execution time (µs):                279.683160CPU 3 DPC total execution time (s):                   0.021462CPU 3 DPC count:                                      2222_________________________________________________________________________________________________________

 

DPC Latency with Storport.sys and Wdf0 1000.sys

I have recently added a new mixer (Presonus Studio Live 16 Series III) to my studio and started having some major issues. It wouldn't be read by the Presonus Studio One 3 DAW. I asked Presonus for help and they asked me to give them a LatencyMon report.

The report plainly states that I have some major latency issues going on. So I proceeded to upgrade my hardware from the old i7 4770k and MSI board running 32GB DDR3 RAM to the new AMD Ryzen 7 1700 on an ASUS Crosshair VI Hero board with Corsair 32GB DDR4 RAM.

After all of that, a fresh install of Windows 10 and the programs I use, I now have an even higher latency issue.

The Presonus Support staff suggested I update drivers (which I did). Turn off CPU Throttling (which I don't know how to do in the newer motherboards) and then get back with them after I have completed those tasks. I used Driver Booster 4.4 Pro to track down all the drivers. Updated my BIOS and I still have high latency and it appears that the culprits are Storport.sys and Wdf0 1000.sys

Here are the stats from LatencyMon

____________________________________________________________________________________________________ _____CONCLUSION_____________________________________________________________________________________ ____________________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 0:50:26 (h:mm:ss) on all processors._________________________________________________________________________________________ ________________SYSTEM INFORMATION_________________________________________________________________________________________ ________________Computer name: DESKTOP-HNJG2JIOS version: Windows 8 , 6.2, build: 9200 (x64)Hardware: ASUSTeK COMPUTER INC., CROSSHAIR VI HEROCPU: AuthenticAMD AMD Ryzen 7 1700 Eight-Core Processor Logical processors: 16Processor groups: 1RAM: 32696 MB total_______________________________________________________________________________________________ __________CPU SPEED_______________________________________________________________________________________________ __________Reported CPU speed: 2994.0 MHzMeasured CPU speed: 5216.0 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.____________________________________________________________________________________________ _____________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): 4036.321766Average measured interrupt to process latency (µs): 9.277492Highest measured interrupt to DPC latency (µs): 4031.534127Average measured interrupt to DPC latency (µs): 5.861701____________________________________________________________________________________________ _____________ 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): 320.440882Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft CorporationHighest reported total ISR routine time (%): 0.073277Driver with highest ISR total time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft CorporationTotal time spent in ISRs (%) 0.118784ISR count (execution time <250 µs): 88068774ISR count (execution time 250-500 µs): 0ISR count (execution time 500-999 µs): 20ISR count (execution time 1000-1999 µs): 0ISR count (execution time 2000-3999 µs): 0ISR 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): 100339.308617Driver with highest DPC routine execution time: storport.sys - Microsoft Storage Port Driver, Microsoft CorporationHighest reported total DPC routine time (%): 0.671484Driver with highest DPC total execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft CorporationTotal time spent in DPCs (%) 0.807031DPC count (execution time <250 µs): 60468376DPC count (execution time 250-500 µs): 0DPC count (execution time 500-999 µs): 743257DPC count (execution time 1000-1999 µs): 28DPC count (execution time 2000-3999 µs): 12DPC 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.Process with highest pagefault count: noneTotal number of hard pagefaults 0Hard pagefault count of hardest hit process: 0Highest hard pagefault resolution time (µs): 0.0Total time spent in hard pagefaults (%): 0.0Number of processes hit: 0___________________________________________________________________________________________________ ______ PER CPU DATA________________________________________________________________________________________________ _________CPU 0 Interrupt cycle time (s): 394.209828CPU 0 ISR highest execution time (µs): 300.190381CPU 0 ISR total execution time (s): 13.851122CPU 0 ISR count: 42999853CPU 0 DPC highest execution time (µs): 5182.454910CPU 0 DPC total execution time (s): 331.350578CPU 0 DPC count: 51579375____________________________________________________________________________________________ _____________CPU 1 Interrupt cycle time (s): 72.690812CPU 1 ISR highest execution time (µs): 320.440882CPU 1 ISR total execution time (s): 11.374231CPU 1 ISR count: 639323CPU 1 DPC highest execution time (µs): 1409.208417CPU 1 DPC total execution time (s): 24.058686CPU 1 DPC count: 986639______________________________________________________________________________________________ ___________CPU 2 Interrupt cycle time (s): 52.846246CPU 2 ISR highest execution time (µs): 170.350701CPU 2 ISR total execution time (s): 9.848251CPU 2 ISR count: 762474CPU 2 DPC highest execution time (µs): 823.727455CPU 2 DPC total execution time (s): 19.269337CPU 2 DPC count: 1164216_____________________________________________________________________________________________ ____________CPU 3 Interrupt cycle time (s): 24.938709CPU 3 ISR highest execution time (µs): 145.020040CPU 3 ISR total execution time (s): 0.189192CPU 3 ISR count: 88127CPU 3 DPC highest execution time (µs): 530.320641CPU 3 DPC total execution time (s): 1.275327CPU 3 DPC count: 102689______________________________________________________________________________________________ ___________CPU 4 Interrupt cycle time (s): 20.371437CPU 4 ISR highest execution time (µs): 22.775551CPU 4 ISR total execution time (s): 0.003807CPU 4 ISR count: 859CPU 4 DPC highest execution time (µs): 335.140281CPU 4 DPC total execution time (s): 0.604158CPU 4 DPC count: 74159_______________________________________________________________________________________________ __________CPU 5 Interrupt cycle time (s): 20.277739CPU 5 ISR highest execution time (µs): 20.110220CPU 5 ISR total execution time (s): 0.000428CPU 5 ISR count: 62CPU 5 DPC highest execution time (µs): 192.244489CPU 5 DPC total execution time (s): 0.068530CPU 5 DPC count: 12466_______________________________________________________________________________________________ __________CPU 6 Interrupt cycle time (s): 20.887043CPU 6 ISR highest execution time (µs): 0.0CPU 6 ISR total execution time (s): 0.0CPU 6 ISR count: 0CPU 6 DPC highest execution time (µs): 300.060120CPU 6 DPC total execution time (s): 0.372607CPU 6 DPC count: 58441_______________________________________________________________________________________________ __________CPU 7 Interrupt cycle time (s): 20.238033CPU 7 ISR highest execution time (µs): 0.0CPU 7 ISR total execution time (s): 0.0CPU 7 ISR count: 0CPU 7 DPC highest execution time (µs): 167.925852CPU 7 DPC total execution time (s): 0.061214CPU 7 DPC count: 10929_______________________________________________________________________________________________ __________CPU 8 Interrupt cycle time (s): 31.445492CPU 8 ISR highest execution time (µs): 0.0CPU 8 ISR total execution time (s): 0.0CPU 8 ISR count: 0CPU 8 DPC highest execution time (µs): 456.022044CPU 8 DPC total execution time (s): 1.957682CPU 8 DPC count: 1199210_____________________________________________________________________________________________ ____________CPU 9 Interrupt cycle time (s): 32.239437CPU 9 ISR highest execution time (µs): 0.0CPU 9 ISR total execution time (s): 0.0CPU 9 ISR count: 0CPU 9 DPC highest execution time (µs): 320.561122CPU 9 DPC total execution time (s): 0.165233CPU 9 DPC count: 46890_______________________________________________________________________________________________ __________CPU 10 Interrupt cycle time (s): 33.223726CPU 10 ISR highest execution time (µs): 0.0CPU 10 ISR total execution time (s): 0.0CPU 10 ISR count: 0CPU 10 DPC highest execution time (µs): 427.444890CPU 10 DPC total execution time (s): 1.651628CPU 10 DPC count: 505417______________________________________________________________________________________________ ___________CPU 11 Interrupt cycle time (s): 31.772490CPU 11 ISR highest execution time (µs): 0.0CPU 11 ISR total execution time (s): 0.0CPU 11 ISR count: 0CPU 11 DPC highest execution time (µs): 269.539078CPU 11 DPC total execution time (s): 0.161207CPU 11 DPC count: 55947_______________________________________________________________________________________________ __________CPU 12 Interrupt cycle time (s): 59.447627CPU 12 ISR highest execution time (µs): 160.230461CPU 12 ISR total execution time (s): 16.244654CPU 12 ISR count: 33764815CPU 12 DPC highest execution time (µs): 100339.308617CPU 12 DPC total execution time (s): 5.610136CPU 12 DPC count: 3555584_____________________________________________________________________________________________ ____________CPU 13 Interrupt cycle time (s): 39.827547CPU 13 ISR highest execution time (µs): 255.460922CPU 13 ISR total execution time (s): 1.760120CPU 13 ISR count: 3464360CPU 13 DPC highest execution time (µs): 333.657315CPU 13 DPC total execution time (s): 0.630978CPU 13 DPC count: 315780______________________________________________________________________________________________ ___________CPU 14 Interrupt cycle time (s): 35.320746CPU 14 ISR highest execution time (µs): 97.484970CPU 14 ISR total execution time (s): 1.712625CPU 14 ISR count: 2635322CPU 14 DPC highest execution time (µs): 469.148297CPU 14 DPC total execution time (s): 2.150728CPU 14 DPC count: 968751______________________________________________________________________________________________ ___________CPU 15 Interrupt cycle time (s): 37.911701CPU 15 ISR highest execution time (µs): 143.517034CPU 15 ISR total execution time (s): 2.526747CPU 15 ISR count: 3713599CPU 15 DPC highest execution time (µs): 356.963928CPU 15 DPC total execution time (s): 1.347907CPU 15 DPC count: 575182______________________________________________________________________________________________ ___________

What should be my next steps?

Thank you,

Brad

 

BSOD ntoskrnl..exe+1b35e0

Hi, KirbyBakken

My name is Maritza and I am an Independent Advisor. I would be happy to help you today.

Check this link, I hope it helps

https://www.thewindowsclub.com/ntoskrnl-exe-hig...

Note: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised
on the site before you decide to download and install it.

Let us know if these steps help you to resolve the issue.