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XPS 8950, wdf01000.sys causing severe latency
I have been dealing with severe latency issues (probably with Wdf01000.sys) on this rather new Dell computer.
Somebody help me or I want to return this computer. I have been dealing with this for months. It is killing my business.
latencymon reports the following:
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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 0:15:42 (h:mm:ss) on all processors.
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SYSTEM INFORMATION
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Computer name:
OS version: Windows 11, 10.0, version 2009, build: 22000 (x64)
Hardware: XPS 8950, Dell Inc.
BIOS: 1.5.0
CPU: GenuineIntel 12th Gen Intel(R) Core(TM) i7-12700K
Logical processors: 20
Processor groups: 1
Processor group size: 20
RAM: 32492 MB total
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CPU SPEED
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Reported CPU speed (WMI): 360 MHz
Reported CPU speed (registry): 3610 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.
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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): 4431.70
Average measured interrupt to process latency (µs): 5.277287
Highest measured interrupt to DPC latency (µs): 1092.80
Average measured interrupt to DPC latency (µs): 1.73730
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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): 303.797784
Driver with highest ISR routine execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation
Highest reported total ISR routine time (%): 0.002452
Driver with highest ISR total time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation
Total time spent in ISRs (%) 0.002452
ISR count (execution time <250 µs): 595463
ISR count (execution time 250-500 µs): 0
ISR count (execution time 500-1000 µs): 97
ISR count (execution time 1000-2000 µs): 0
ISR count (execution time 2000-4000 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): 7383.474238
Driver with highest DPC routine execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation
Highest reported total DPC routine time (%): 0.026646
Driver with highest DPC total execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation
Total time spent in DPCs (%) 0.043267
DPC count (execution time <250 µs): 994859
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-10000 µs): 1444
DPC count (execution time 1000-2000 µs): 0
DPC count (execution time 2000-4000 µs): 2
DPC count (execution time >=4000 µs): 4
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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: svchost.exe
Total number of hard pagefaults 6766
Hard pagefault count of hardest hit process: 1734
Number of processes hit: 55
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PER CPU DATA
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CPU 0 Interrupt cycle time (s): 46.587161
CPU 0 ISR highest execution time (µs): 303.797784
CPU 0 ISR total execution time (s): 0.180638
CPU 0 ISR count: 277830
CPU 0 DPC highest execution time (µs): 7383.474238
CPU 0 DPC total execution time (s): 2.335284
CPU 0 DPC count: 443819
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CPU 1 Interrupt cycle time (s): 46.744809
CPU 1 ISR highest execution time (µs): 0.0
CPU 1 ISR total execution time (s): 0.0
CPU 1 ISR count: 0
CPU 1 DPC highest execution time (µs): 2153.906371
CPU 1 DPC total execution time (s): 0.031619
CPU 1 DPC count: 2381
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CPU 2 Interrupt cycle time (s): 57.780593
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): 542.035457
CPU 2 DPC total execution time (s): 0.605676
CPU 2 DPC count: 46835
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CPU 3 Interrupt cycle time (s): 52.282945
CPU 3 ISR highest execution time (µs): 300.279778
CPU 3 ISR total execution time (s): 0.042947
CPU 3 ISR count: 42192
CPU 3 DPC highest execution time (µs): 337.439335
CPU 3 DPC total execution time (s): 0.456388
CPU 3 DPC count: 46286
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CPU 4 Interrupt cycle time (s): 56.646669
CPU 4 ISR highest execution time (µs): 298.581717
CPU 4 ISR total execution time (s): 0.095173
CPU 4 ISR count: 142543
CPU 4 DPC highest execution time (µs): 2520.895291
CPU 4 DPC total execution time (s): 1.496596
CPU 4 DPC count: 186652
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CPU 5 Interrupt cycle time (s): 54.551280
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): 761.408310
CPU 5 DPC total execution time (s): 0.306094
CPU 5 DPC count: 25913
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CPU 6 Interrupt cycle time (s): 52.411689
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): 303.150139
CPU 6 DPC total execution time (s): 0.130655
CPU 6 DPC count: 11427
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CPU 7 Interrupt cycle time (s): 51.996036
CPU 7 ISR highest execution time (µs): 249.369529
CPU 7 ISR total execution time (s): 0.034506
CPU 7 ISR count: 45892
CPU 7 DPC highest execution time (µs): 305.727424
CPU 7 DPC total execution time (s): 0.421597
CPU 7 DPC count: 52754
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CPU 8 Interrupt cycle time (s): 51.960874
CPU 8 ISR highest execution time (µs): 293.133518
CPU 8 ISR total execution time (s): 0.016678
CPU 8 ISR count: 17525
CPU 8 DPC highest execution time (µs): 304.245983
CPU 8 DPC total execution time (s): 0.224057
CPU 8 DPC count: 23388
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CPU 9 Interrupt cycle time (s): 52.386657
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): 399.094737
CPU 9 DPC total execution time (s): 0.081122
CPU 9 DPC count: 6470
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CPU 10 Interrupt cycle time (s): 53.528901
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): 274.147368
CPU 10 DPC total execution time (s): 0.134905
CPU 10 DPC count: 13014
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CPU 11 Interrupt cycle time (s): 51.489202
CPU 11 ISR highest execution time (µs): 243.576731
CPU 11 ISR total execution time (s): 0.001457
CPU 11 ISR count: 1797
CPU 11 DPC highest execution time (µs): 249.158449
CPU 11 DPC total execution time (s): 0.019373
CPU 11 DPC count: 2525
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CPU 12 Interrupt cycle time (s): 51.657182
CPU 12 ISR highest execution time (µs): 300.253740
CPU 12 ISR total execution time (s): 0.010647
CPU 12 ISR count: 12141
CPU 12 DPC highest execution time (µs): 330.957895
CPU 12 DPC total execution time (s): 0.205193
CPU 12 DPC count: 33379
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CPU 13 Interrupt cycle time (s): 52.556604
CPU 13 ISR highest execution time (µs): 0.0
CPU 13 ISR total execution time (s): 0.0
CPU 13 ISR count: 0
CPU 13 DPC highest execution time (µs): 402.269252
CPU 13 DPC total execution time (s): 0.648634
CPU 13 DPC count: 23217
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CPU 14 Interrupt cycle time (s): 52.150659
CPU 14 ISR highest execution time (µs): 0.0
CPU 14 ISR total execution time (s): 0.0
CPU 14 ISR count: 0
CPU 14 DPC highest execution time (µs): 224.632133
CPU 14 DPC total execution time (s): 0.030446
CPU 14 DPC count: 3455
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CPU 15 Interrupt cycle time (s): 51.363637
CPU 15 ISR highest execution time (µs): 0.0
CPU 15 ISR total execution time (s): 0.0
CPU 15 ISR count: 0
CPU 15 DPC highest execution time (µs): 125.140720
CPU 15 DPC total execution time (s): 0.003252
CPU 15 DPC count: 395
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CPU 16 Interrupt cycle time (s): 30.058921
CPU 16 ISR highest execution time (µs): 279.272022
CPU 16 ISR total execution time (s): 0.079248
CPU 16 ISR count: 55046
CPU 16 DPC highest execution time (µs): 313.466482
CPU 16 DPC total execution time (s): 0.872683
CPU 16 DPC count: 63052
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CPU 17 Interrupt cycle time (s): 13.407419
CPU 17 ISR highest execution time (µs): 0.0
CPU 17 ISR total execution time (s): 0.0
CPU 17 ISR count: 0
CPU 17 DPC highest execution time (µs): 276.531302
CPU 17 DPC total execution time (s): 0.094693
CPU 17 DPC count: 6205
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CPU 18 Interrupt cycle time (s): 7.084072
CPU 18 ISR highest execution time (µs): 0.0
CPU 18 ISR total execution time (s): 0.0
CPU 18 ISR count: 0
CPU 18 DPC highest execution time (µs): 176.260388
CPU 18 DPC total execution time (s): 0.022283
CPU 18 DPC count: 2319
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CPU 19 Interrupt cycle time (s): 8.455480
CPU 19 ISR highest execution time (µs): 10.016066
CPU 19 ISR total execution time (s): 0.000644
CPU 19 ISR count: 594
CPU 19 DPC highest execution time (µs): 528.530748
CPU 19 DPC total execution time (s): 0.032274
CPU 19 DPC count: 2823
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Viamichael
21 Posts
0
January 1st, 2023 12:00
It is so sad to read your reply. I have not found any Dell technical support people qualified to fix the problem they created. I have wasted months of my life trying to deal with this problem.
Do you have an Nvidia video in your Alienware laptop? I know the issue is caused by Dell not understanding the correct implementation of Nvidia cards and Win 11. You would think a Dell person would contact me. They sent me satisfaction surveys and I gave them the lowest ratings for not only unable to understand the problem but actually making the problem worse. I should never have purchased a Dell computer. Three times tech support set up meeting with me and 3 times I waited in vain for them.
Johnny905
1 Message
0
January 7th, 2023 17:00
I'm having the same issue. A new Dell XPS 8950. I have been on the phone with several Dell Tech folks, but so far no progress. Do you still recommend a clean Windows 11 re-install from the Microsoft link you provided? If you are still willing to provide a step-by-step guide to doing the install that would be greatly appreciated.
Oli456
11 Posts
0
January 8th, 2023 08:00
I'm sorry to hear that My XPS 8940 had a bunch of issues from the moment I bought it: overheating, multiple full pc freezes daily, frequent audio popping/crackling...
I managed to reduce that to only having a full pc freeze per week I would say which is still very annoying and frustrating but I took care of the overheating and the audio popping/crackling.
I also had high latency in Latency Monitor before. So to reduce the crackling/popping of the audio (I still hear some but very rarely now) and reduce latency I did a couple of things.
#1 Set Minimum processor state to 100% in the Power Options / Processor power management
#2 I set the Default Format to a lower quality in Sound / Speakers Properties
#3 (?) I might have disabled the audio enhancements (see image above). I'm not sure if this was on or off by default but now it's off so I might have turned it off. It was a while ago and I tried so many things so I can't say for sure.
#4 (?) I remember playing with using the Realtek drivers vs the High Definition Audio drivers from Microsoft but not sure if this had anything to do with it. You can give it a try and see if a driver perform better than the other.
That's all I can remember trying for now. If I remember anything else I'll update my post.
Good luck!
RoHe
10 Elder
10 Elder
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43.7K Posts
1
January 8th, 2023 11:00
Have any of you tried disabling/uninstalling all Dell services (eg, Dell Update, SupportAssist, Fusion, etc.) and all Killer (and all xTend services if listed) shown in Start>Run>services.msc?
Don't change anything else in services.msc. Just reboot and see if this helps...
BradHof
27 Posts
1
January 14th, 2023 09:00
This issue is all over the internet. I mean it's gigantic. Dell, one of the largest computer makers in the world keep ignoring it. I can't believe that this is not solvable. I'll never buy a Dell again. I have been using Dell computers since 1995 For Business, for personal use. I have always reccomended Dell, to friends, and other Audio users. NEVER again. It's bad enougn they can't solve it but to keep wearing people down to pass you off is despciable.
BradHof
27 Posts
0
January 14th, 2023 09:00
Hi,
I have been dealing with the exact same issue. Dell has just worn me down. After months of remote sessions, sending a technician, sending back the computer to repair, uninstalling windows 3 times, they have failed. Their answer was there's nothing you can do about DPC latency. With new versions of windows there are more and more services, and processes. running in the background that it's bound to happen. I'm at my wits end and Dell just kept handing me off to people who only know how to read from a script. I have tried everything. I'll have to buy a new computer because I use it for AUDIO and it's just unacceptable. If you find an answer please let me know. I realize for audio production I can never ever use a DELL ever again. I'm going to an independant that specializes in building computers for AUDIO production. Dell had just worn me down. I can't argue with a voice at the other end of the phone that can't make executive decisions anyway. They just keep handing you off to someone else.
BradHof
27 Posts
0
January 14th, 2023 11:00
The lack of reasonable response from Dell is a lesson learned. They also setup callbacks and technician onsite repair people for me, who didn't show up or call back. When they finally did they were useless. The onsite repar persn actually caued another issue where they had to replace the Heat Sink in the computer among other things that were going on.
BradHof
27 Posts
0
January 14th, 2023 11:00
I tried this. No luck.
BradHof
27 Posts
1
January 14th, 2023 11:00
Have you tried the clean Windows install from the Microsoft link?
Viamichael
21 Posts
0
January 14th, 2023 13:00
This is the one trick I didn’t fall for. I read reports of too many people that this didn’t work.
I also use my computer mainly for audio, then Photoshop. I have been a Cakewalk user for 30 years. I have tried many other audio recording programs, but keep coming back to Cakewalk. I had to convince my songwriting partner to learn how to use a DAW, so I started him out on the free Cakewalk. In the past 2 years I’ve had 25 songs on the radio with 3 of them receiving more than 1000 plays. I say this because every Dell tech I spoke with told me I was wrong about my configurations. Truly, they had no idea what they were talking about and you are correct that all they did was read from a script. I know several Cakewalk forum users have specially built systems for DAWs and especially for Cakewalk.
I learned a lot from these people. Only a couple of things worked. I recently turned off power management for each USB connection in Device Manager. What that did for me is that I have not been experiencing stutters when LatencyMon goes in the red with a high dpc latency. One of the forum guys mentioned 3 different thread scheduling variations for the CPUs. That’s in Cakewalk.
My issue is not Cakewalk, I get high dpc latencies with nothing but Windows running, with no anti-virus, Ethernet and wi-fi uninstalled and with every audio in device manager completely uninstalled. I don’t know if I always had this problem. I received my computer the first week of February, 2022. The stuttering started in the summer. Could it have been a Windows update? I do know all NVIDIA updates past May 23, 2022 have been problematic.
My Dell model is 8950. I forget the exact specs except that it has 32 gb of ram at 4000 something speed, 12th gen i7 chip. I’m running 2 2gb SSD and 2 hard drives, one being 8gb. I’ve disconnected all drives but the C drive with no luck. I do think Dell and Microsoft ought to get together in the same room and figure things out. I am sure they know where the problems lies. Also, I disconnected my 4K monitor and used the generic video hub with no luck.
Other that that, no problems.
RoHe
10 Elder
10 Elder
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43.7K Posts
0
January 14th, 2023 15:00
wdf01000.sys is a Microsoft system file and this latency issue is happening on PCs from many OEMs, not just Dell PCs. So it's probably up to Microsoft to find/fix this problem which has been around for a while (too long!).
Viamichael
21 Posts
0
January 14th, 2023 17:00
I think you are correct, except Dell ought to be part of the problem solving since I paid them and paid them for the warranty.
RoHe
10 Elder
10 Elder
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43.7K Posts
0
January 14th, 2023 18:00
Dell only covers bundled software for first 30 days. Your 1-year warranty is only for hardware.
You paid Microsoft for the OS, so they're the ones that should fix this. If you look, there are lots of posts about this exact issue on the Microsoft forum with various "solutions" from their own experts and forum volunteers that -mostly- don't fix it...
BradHof
27 Posts
0
January 14th, 2023 21:00
ViaMichael,
Yes, I have all the same issues with almost the exact same computer specs. And Yes, the problem ocurrs while doing absolutely nothing. It has nothing to do with Cakewalk, Youtube or any other app. I also started to recognize the problem somewhere around the begining of July. Thanks for replying.
badwater000
4 Posts
0
January 28th, 2023 03:00
Hi all,
Try to use Windows Server 2019 and disable as many services as possible. Currently I have only 28-29 services running on my computer.