High Latency on Wdf01000.sys driver causing Real Time Audio Playback issues

Yep, I did the same thing trying to solve this latency problem. Bought not one, but two external USB audio interfaces and disabled everything from Realtek (rtk). Tried 1001 other great ideas, but LatencyMon still spikes, with ntoskrnl.exe, wdf01000.sys, and sometimes HDAudBus.sys leading the way. My support contact is pushing for a clean install of Windows 11 (aka, the nuclear option), but that will erase 6 months of careful, detailed system configuration. "Just" reinstall your apps? Ha!

Any solution or suggestion or direction would really be appreciated. Or a gift certificate to see a shrink.

1. Поскольку Майкрософт ввела коррекцию в системный таймер, он даёт задержки усреднённо к 8 -10 мс, но это никак не соответствует требованиям с воспроизведением качественного звука. Максимальная задержка должна быть 1 мс, от 100 мкс до 500 мкс для основной массы прерываний.

Первым делом этого решается выбором качественной платформы, в которой цепи питания материнской платы качественно питают все (!!!) устройства на шинах.

О таких материнках как Huananzhi или к материнским платам ниже чем на чипсете B650

и с менее, чем 2*7+3 фаз питания это не относится (не питают они качественно).

Во вторых, поскольку используются старые драйвера той же Майкрософт

к мышке или клавиатуре, к многим платам расширения USB и массе других периферийных устройств,

в которых (драйверах) используется код, написанный для старого варианта системного таймера

(часто потому, что на то, как написано, не обращали внимания, хотя могли написать и более корректно, с использованием других команд),

так вот, - использование старого варианта таймера - обязательно, чтобы Вы нормально могли пользоваться компьютером.

У меня мышка отключалась на 15...20 сек на вновь установленной системе - настолько не продумана система прерываний в Windows 11. Это происходит, например, при загрузке программы с требованиями разрешения от системы доступа по безопасности.
Или загрузки многих программ, которые записаны в автозагрузке.

Отключить их? - Это смешно. Зачем тогда компьютер - не только же аудио пользоваться.

Проще плеер иметь.

То же возникает и у игроков в компьютерные игры. У них проблемы с мышью связаны.

Также ужасно не продумано и переключение языков. При каждом переключении вылезает много всяких сочетаний знаков набора при наборе даже в блокноте, чуть менее в Notepad.

Это общая тенденция у Майкрософт - усложнять - не проверяя последствий - пользователи разберутся.

2. Поэтому установил старый вариант таймера в системе (то есть тот , что был до Windows 10 2004)/ Настройка таймера и синхронизации прерываний. https://www.ixbt.com/live/sw/ispravlenie-sistemnogo-taymera-hpet-v-novyh-versiyah-windows.html 1. отключить высокоточный таймер событий в диспетчере устройств в меню "системные устройства". Нажимаем правым кликом мыши на «Пуск» и выбираем «Диспетчер устройств». Для отключения HPET и активации таймера TSC мы должны в разделе «Системные устройства» отключить «Высокоточный таймер событий» иногда он подписан как High Precision Even Timer. Правый клик мыши>>"Отключить устройство". 2. внести информацию в реестр с помощью файла timer.reg следующего содержания: Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\kernel] "DpcWatchdogProfileOffset"=dword:00002710 "ObUnsecureGlobalNames"=hex(7):6e,00,65,00,74,00,66,00,78,00,63,00,75,00,73,00,\ 74,00,6f,00,6d,00,70,00,65,00,72,00,66,00,63,00,6f,00,75,00,6e,00,74,00,65,\ 00,72,00,73,00,2e,00,31,00,2e,00,30,00,00,00,53,00,68,00,61,00,72,00,65,00,\ 64,00,50,00,65,00,72,00,66,00,49,00,50,00,43,00,42,00,6c,00,6f,00,63,00,6b,\ 00,00,00,43,00,6f,00,72,00,5f,00,50,00,72,00,69,00,76,00,61,00,74,00,65,00,\ 5f,00,49,00,50,00,43,00,42,00,6c,00,6f,00,63,00,6b,00,00,00,43,00,6f,00,72,\ 00,5f,00,50,00,75,00,62,00,6c,00,69,00,63,00,5f,00,49,00,50,00,43,00,42,00,\ 6c,00,6f,00,63,00,6b,00,5f,00,00,00,00,00 "SeTokenSingletonAttributesConfig"=dword:00000003 "obcaseinsensitive"=dword:00000001 "GlobalTimerResolutionRequests"=dword:00000001
3. ввести команды для отключения встроенного программного таймера Windows

и технологии экономии электроэнергии для ноутбуков. Вновь нажимаем Win+R и вводим команду CMD.

В появившемся окне вводим команды:

bcdedit /set disabledynamictick yes

bcdedit /set useplatformtick yes

bcdedit /set useplatformclock false

bcdedit /deletevalue useplatformclock

Требуется перезагрузка системы!!!.

4. Выполним установку системной службы Windows, отвечающей за минимальное значение системного таймера.

Скачиваем https://disk.yandex.ru/d/irKjRNGVcPq9tg и извлекаем папку архива в корень любого диска.

Переходим в папку установщика и запускаем не от имени администратора файл Installer.bat.

В появившемся окне выбираем желаемый таймер. Я советую 4.

Дожидаемся окончания установки. (После установки не удалять папку установщика).

Проверяем значение таймера, нажав 8.

Если всё прошло успешно, то значение системного таймера будет равняться 0.5 мс.

4. Замечания к предыдущему пункту:

Замечания. Включение данных значений зависит от Вашей платформы: http://xn--https-3vea//forums.blurbusters.com/viewtopic.php?t=8643&start=10 : Re: useplatformtick and/or disabledynamictick on mouse input lag Post by Slender » 23 May 2021, 21:03 do not listen to people who say that hpet off in the bios affects the hitreg (lol). Turning it off does affect mouse latency, but on systems newer than 1803 with useplatformtick yes causes a large dpc delay and jitter lag. All you have to do is disable the dynamic tick, deletevalue clock, and test the useplatformtick yes/no. On newer systems, it behaves differently. on 21h1 and 20h2 with usetick enabled, I get 530point single-core performance and delta in maustester 960-1040, with deletevalue usetick (no), I get 580point (0.5 ms res), and maustester delta 990-1010. But for my friend on the z490 and i9, there is no difference in performance, it all depends on the system. Also setting deletevalue useclock/tick (no, no) completely ignores the hpet settings in the bios, showing a minimum timer of 0.496 for 1803+ and 0.513 for versions below. For systems such as 1607, 1709, 8.1, 7, I advise you to leave useplatformtick yes. You can also experiment with turning off hpet in the bios, but you need to keep in mind that the version should not be higher than 1803. This will certainly reduce your performance (for example, from 580 to 530), but your mouse will feel much better. You can turn it off without modifications, via grub. do not listen to those people who just throw in some tests and drown for them without any reason, test everything yourself. Re: useplatformtick and/or disabledynamictick on mouse input lag by MatrixQW » 27 May 2021, 04:58 Even e.g. disableplatformtick makes mouse more accurate, it lags and I don't like lag... Also many new mobos can't even disable HPET in BIOS, which is annoying...

5. Отключить сбережение энергии в опциях планов расхода энергии в системе Windows 11:

а) для USB в чекбоксах выбрать без сбережения.

б) для шин PCIExpress (отключить в чекбоксах опцию сбережения).

в) в диспетчере устройств отключить все опции сбережения портов и хабов USB, поскольку не отключение этой опции может вызвать существенную задержку при соответствующем прерывании, а отключить вообще опцию соответствующего интерфейса, например Realtec audio будет приводить к другим сбоям в системе, в чём убедился в предыдущей установке Windows 11.

В настоящее время использую план энергосбережения с опцией процессора 15% - минимум производительности от максимальной и 80% - максимальное значение для режима от максимальной производительности. Материнская плата Aorus Elite B650 AX, NVME SSD Samsung 970 EVO, рабочий SSD Samsung 960, память GSkills (это не лучшая, но терпимая) 2*16 GB c основной задержкой 38 нс от Samsumg (как выяснил) - работает с профилем Интел в БИОС на частоте 6000 МГц. Процессор - AM5 7500f.

Остальные настройки по умолчанию. Оптимизация curve проведена программой от AMD, разница - не видна.

Драйверы материнской платы были обновлены на последние. В некоторых моментах - быстрее, но с системным прецизионным таймером - хуже в задержках. Задержки составляют в основном до 250 мкс, максимальные 1000-1200 для аудио.

После установки старого таймера и настроек

bcdedit /set disabledynamictick yes

bcdedit /set useplatformtick yes

bcdedit /set useplatformclock false

bcdedit /deletevalue useplatformclock

мышка работает быстро без проблем. Задержки аудио до 250, изредка - до 500, очень редко -1000 мкс.

6. Установить драйверы asio

У меня они есть разные:

• от USB аудио платы US366
• от ПО Cubase LE AI Elements 10
• бесплатные ASIO4ALL_2_13_Russian.exe (есть английская версия).

7. Установить плеер, использующий эти драйверы, что уберёт в определённой степени компьютерный джиттер:

Bug_head_Emperor_Infinity_blade_v7.23_2.13 или другие.

Вот результаты тестирования после проведённых изменений:

Здесь полный отчёт о задержках (статистика):

CONCLUSION

_________________________________________________________________________________________________________

Your system appears to be suitable for handling real-time audio and other tasks without dropouts.

LatencyMon has been analyzing your system for 0:24:21 (h:mm:ss) on all processors.

_________________________________________________________________________________________________________

SYSTEM INFORMATION

_________________________________________________________________________________________________________

Computer name: PC3

OS version: Windows 10 , 10.0, build: 22631 (x64)

Hardware: B650 AORUS ELITE AX, Gigabyte Technology Co., Ltd.

CPU: AuthenticAMD AMD Ryzen 5 7500F 6-Core Processor

Logical processors: 12

Processor groups: 1

RAM: 32405 MB total

_________________________________________________________________________________________________________

CPU SPEED

_________________________________________________________________________________________________________

Reported CPU speed: 3693 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.

_________________________________________________________________________________________________________

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): 714.20

Average measured interrupt to process latency (µs): 14.921503

Highest measured interrupt to DPC latency (µs): 709.70

Average measured interrupt to DPC latency (µs): 4.438725

_________________________________________________________________________________________________________

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): 88.938262

Driver with highest ISR routine execution time: Wdf01000.sys - Среда выполнения платформы драйвера режима ядра, Microsoft Corporation

Highest reported total ISR routine time (%): 0.002019

Driver with highest ISR total time: Wdf01000.sys - Среда выполнения платформы драйвера режима ядра, Microsoft Corporation

Total time spent in ISRs (%) 0.002019

ISR count (execution time <250 µs): 459097

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

_________________________________________________________________________________________________________

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): 618.740590

Driver with highest DPC routine execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 555.85 , NVIDIA Corporation

Highest reported total DPC routine time (%): 0.522722

Driver with highest DPC total execution time: Wdf01000.sys - Среда выполнения платформы драйвера режима ядра, Microsoft Corporation

Total time spent in DPCs (%) 0.561673

DPC count (execution time <250 µs): 3907891

DPC count (execution time 250-500 µs): 0

DPC count (execution time 500-999 µs): 11358

DPC count (execution time 1000-1999 µs): 0

DPC count (execution time 2000-3999 µs): 0

DPC 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: system

Total number of hard pagefaults 1537

Hard pagefault count of hardest hit process: 760

Number of processes hit: 23

_________________________________________________________________________________________________________

PER CPU DATA

_________________________________________________________________________________________________________

CPU 0 Interrupt cycle time (s): 200.569870

CPU 0 ISR highest execution time (µs): 88.938262

CPU 0 ISR total execution time (s): 0.311350

CPU 0 ISR count: 416406

CPU 0 DPC highest execution time (µs): 593.412673

CPU 0 DPC total execution time (s): 96.675381

CPU 0 DPC count: 3822712

_________________________________________________________________________________________________________

CPU 1 Interrupt cycle time (s): 61.283337

CPU 1 ISR highest execution time (µs): 67.177092

CPU 1 ISR total execution time (s): 0.042543

CPU 1 ISR count: 42600

CPU 1 DPC highest execution time (µs): 618.740590

CPU 1 DPC total execution time (s): 1.691165

CPU 1 DPC count: 84538

_________________________________________________________________________________________________________

CPU 2 Interrupt cycle time (s): 59.971298

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): 91.733550

CPU 2 DPC total execution time (s): 0.010664

CPU 2 DPC count: 1555

_________________________________________________________________________________________________________

CPU 3 Interrupt cycle time (s): 57.666669

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): 170.011644

CPU 3 DPC total execution time (s): 0.004194

CPU 3 DPC count: 620

_________________________________________________________________________________________________________

CPU 4 Interrupt cycle time (s): 73.865101

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): 171.083672

CPU 4 DPC total execution time (s): 0.004407

CPU 4 DPC count: 614

_________________________________________________________________________________________________________

CPU 5 Interrupt cycle time (s): 73.272214

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): 47.860547

CPU 5 DPC total execution time (s): 0.002409

CPU 5 DPC count: 443

_________________________________________________________________________________________________________

CPU 6 Interrupt cycle time (s): 59.531363

CPU 6 ISR highest execution time (µs): 1.172218

CPU 6 ISR total execution time (s): 0.000067

CPU 6 ISR count: 87

CPU 6 DPC highest execution time (µs): 234.84430

CPU 6 DPC total execution time (s): 0.055493

CPU 6 DPC count: 5115

_________________________________________________________________________________________________________

CPU 7 Interrupt cycle time (s): 52.269333

CPU 7 ISR highest execution time (µs): 1.112104

CPU 7 ISR total execution time (s): 0.000003

CPU 7 ISR count: 4

CPU 7 DPC highest execution time (µs): 218.513404

CPU 7 DPC total execution time (s): 0.021702

CPU 7 DPC count: 2737

_________________________________________________________________________________________________________

CPU 8 Interrupt cycle time (s): 78.427299

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): 109.867858

CPU 8 DPC total execution time (s): 0.002647

CPU 8 DPC count: 367

_________________________________________________________________________________________________________

CPU 9 Interrupt cycle time (s): 78.053468

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): 139.473869

CPU 9 DPC total execution time (s): 0.001693

CPU 9 DPC count: 234

_________________________________________________________________________________________________________

CPU 10 Interrupt cycle time (s): 70.381552

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): 159.010831

CPU 10 DPC total execution time (s): 0.002012

CPU 10 DPC count: 194

_________________________________________________________________________________________________________

CPU 11 Interrupt cycle time (s): 70.953080

CPU 11 ISR highest execution time (µs): 0.0

CPU 11 ISR total execution time (s): 0.0

CPU 11 ISR count: 0

CPU 11 DPC highest execution time (µs): 169.490658

CPU 11 DPC total execution time (s): 0.001734

CPU 11 DPC count: 120

_________________________________________________________________________________________________________

Имеет смысл переключить аудио программы на ядро 5.

Not even kidding ... i bought a couple external and internal soundcards.

Because i didn´t know what is causing the problem.

But i think it´s funny. We have 2023, with 5Ghz+ CPU´s and crazy hardware.

But still, we can´t handle sound.

Super confusing ... :-D

I got the problem for over 2 years now, i try to fix it from time to time and test alot of solutions that people post.

But nothing has helped at all.

Not even buying a new soundcard.

Do you have any iprovement in this case? , I see you have the sam problem... I have an ASUS laptop using Cubas 12 artist..I have stutterings..audio drop outs..I thoght it is an ASUS related problem, but now I see it is a PC rlated problem..

Hi Chandy,

JFYI

I have the same problem, and it had been getting worse as I have added and used programs over 2022-2023 period.

My point in writing is simply to say that (if information for you helps) I have reinstalled Windows 10 Pro twice without curing the issue.

Indeed, after a clean wipe and reinstall a few days ago, the first program I ran was LatencyMon, and the same Wdf01000.sys, dxgkrnl.sys, storport.sys, nvlddmkm.sys issues showed up...

Highest measured interrupt to process latency (µs): 4397.30
Average measured interrupt to process latency (µs): 10.652083

Highest measured interrupt to DPC latency (µs): 4348.60
Average measured interrupt to DPC latency (µs): 3.090591

Highest ISR routine execution time (µs): 353.369988
Driver with highest ISR routine execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation

Highest reported total ISR routine time (%): 0.030889
Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

Highest DPC routine execution time (µs): 1842.240566
Driver with highest DPC routine execution time: storport.sys - Microsoft Storage Port Driver, Microsoft Corporation

Highest reported total DPC routine time (%): 0.013209
Driver with highest DPC total execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 536.23 , NVIDIA Corporation

However, in all fairness I have used (and looked after) my Dell XPS8700 from new in 2013 and I suppose it possibly might be aged hardware,

Finally two things:

1. When you locate the issue PLEASE somehow ensure it is communicated widely so we all can learn why and resolve the issue. It does not matter the cause, (e.g. if a Microsoft issue) I just need to solve the issue and move on quickly.
2. There is a lot of pressure-opinion to move to MAC when I replace my computer..

Regards

Pete

I have the issue as well ... just started in the last week or so .... 10/8/2023 is today's date.

Using LatencyMon I am seeing some very large DPC numbers.

I tried to paste a graphic here .... however that didn't work.

Also, there was no audio running at the time.

Microsoft have techs? They certainly don't appear to be making much of an impact here.

Good luck if you go MAC, I have spent to much of my life working with MS PC's to change.