DPC latency issues, cracking, stuttering and more

[Alonzorion]

So story so far goes, I've had 5 systems over the passed 2 years with almost entirely different parts between each build each with better specs than the previous, and we're talking motherboard, GPU, CPU, power unit, etc... however every single one of them has had exactly the same issue and I'm literally out of ideas about what could be wrong at this stage. This is a plague on my life.


The issue includes gradually worsening latency issues... we're talking system lag, sound popping, and game lag on pretty much anything, old games, brand new games, occasional freeze ups and micro stutter, and this all on a INTEL Skylake Core i7 6700K OC 4.5Ghz, ASUS Z170-P with a MSI GTX 980TI.


So, the only things I can think of that have been reoccurring with all 5 systems are the monitor (4K Samsung), the speakers, MY HOME?, my capture card, an old Elgato I use paired with my PS3, my external storage devices... and some of the programs I use. This includes general stuff like Skype, Steam, Audacity, Mirrilis Action, Vegas Pro, GIMP, OBS all of which I've purged many many times either uninstalling them or flat out doing a clean system reinstall, but this rarely seemed to fix any problems.


If you have any questions, please feel free to ask, I'm about to start on my 6th and would really rather it didn't have similar issues, I'm losing a lot of money because of this and a LOT of time from research and getting different components repaired, lol.

Following recommendations from this thread: https://www.sysnative.com/forums/wi...-latency-wdf01000-sys-ndis-sys.html#post97961 I've done an xperf trace and uploaded it here: Dropbox - CPU.7z unfortunately, I don't understand the results it's produced and would appreciate some direction. :)

 

[xilolee]

Hi Alonzorion. :welcome:

• Please provide answers for (answer the best that you can):
  • System Manufacturer?
  • Laptop or Desktop?
  • Exact model number (if laptop, check label on bottom)
  • OS ? (Windows 10, 8.1, 8, 7, Vista)
  • x86 (32bit) or x64 (64bit)?
  • Service pack?
  • What was original installed OS on system?
  • Is the OS an OEM version (came pre-installed on system) or full retail version (YOU purchased it from retailer)?
  • Age of system? (hardware)
  • Age of OS installation?
  • Have you re-installed the OS?
  • CPU
  • RAM (brand, model, which slots are you using?)
  • Video Card
  • MotherBoard - (if NOT a laptop)
  • Power Supply - brand & wattage (if laptop, skip this one)
  • What security software are you using? (Firewall, antivirus, antimalware, antispyware, and so forth)
  • Are you using proxy, vpn, ipfilters or similar software?
  • Are you using Disk Image tools? (like daemon tools, alcohol 52% or 120%, virtual CloneDrive, roxio software)
  • Are you currently under/overclocking? Are there overclocking software installed on your system?

• System information log
  You should run only one of the following commands, the one you prefer.
  
  Read More:

  The first command is longer than the following ones, but it should always work. Hence, in case of errors with the other two commands, try the first one.
  Obviously, YourWinAccountFolder should be substituted with your Win Account Folder name.
  The following commands should be run from an elevated command prompt.
  How to open an elevated command prompt in ALL windows versions: click (or right-click) on Windows Start, click in the searchbox (or click Search, or start to type directly), type CMD, press and hold CTRL and SHIFT keys (on your keyboard), press enter (on your keyboard), release all the keys, click yes to UAC window (if you disabled UAC, this shouldn't appear)

  msinfo32 /nfo "c:\users\YourWinAccountFolder\desktop\MsInfo.nfo"
    or
    msinfo32 /nfo "c:\users\%username%\desktop\MsInfo.nfo"
    or
    msinfo32 /nfo "%userprofile%\desktop\MsInfo.nfo"

  (Then upload it here)

• Retrieve System Information, using speccy
  1. Download Speccy portable - actual version 1.29.714 (click), unzip/decompress it and put it on your desktop.
  2. When the program opens, it will retrieve some information regarding your system.
  3. Once it's done, select the File menu and choose Publish snapshot. Answer Yes to the confirmation message.
  4. On the next screen that comes up, choose the Copy to Clipboard button and paste this link in your next reply.
  5. (Or attach the log here, if you prefer to not publish it for some reason)

• Download and install the Windows Performance Toolkit on dev.windows.com - Windows Software Development Kit (SDK) for Windows 10 - sdksetup.exe 1.12MB (click) if you are using windows 10 or Download and install the Windows Performance Toolkit - Windows Assessment and Deployment Kit (Windows ADK) for Windows 8.1 Update - adksetup.exe 1.36MB (click)if you are using windows 8.1 (steps are almost identical...):
  Read More:

  Click Download the standalone SDK (sdksetup.exe), save/run it and you'll see for first Specify location: leave it default or choose your preferred location, then click Next.

  Read More:

  

  Then you'll see Windows kits privacy: Niemiro said "you may opt in to CEIP if you so wish - it is not necessary, but you may wish to do so". Then click Next.

  Read More:

  

  Then you'll see License agreement: click Accept.

  Read More:

  

  Then you'll see Select the features you want to install: select only Windows Performance Toolkit and click Install.

  Read More:

  
  Then open an elevated command prompt (right-click on the windows start button on bottom-left corner, left-click Command Prompt (Admin)) and launch these commands:
  Read More:

  
  

  1. Set the path environment variable adding the windows performance toolkit path:

     SET PATH=%PATH%;C:\Program Files (x86)\Windows Kits\10\Windows Performance Toolkit\

     If you have chosen another path in specify location, you should provide THAT ONE.
  2. You can generate a new trace with this command:

     xperf -on DiagEasy

     Wait some time (Niemiro said: "Wait until the computer has gone through a period of stuttering slowness") and then:

     xperf -d "%userprofile%\Desktop\trace.etl"

     If you get an error, try

     xperf -d "c:\users\YourWinAccountFolder\Desktop\trace.etl"

     Obviously, YourWinAccountFolder should be substituted with your Win Account Folder name.
  3. Upload/post the files. You can attach them here through GoogleDrive, OneDrive, DropBox or similar services, or through websites for uploading files (like as an example speedyshare.com).
  You can also read the original tutorial/guide and its following posts for more informations:How to Diagnose and Fix High DPC Latency Issues with WPA (Windows Vista/7/8) (click) (by Niemiro)