[SOLVED] DPC Latency issue (storport.sys)

zerotheher007 · Sep 6, 2016

I'm pretty new to messing around with things like this but either way I already have ran a trace which I now don't know how to decipher which I will include a link to below. Any help would be greatly appreciated.

-Justin

https://1drv.ms/u/s!AqGtiXwwlI_9gwayZuv3-DMso7wm

xilolee · Sep 6, 2016

Hi Zerotheher007. :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)
Code:
```
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 - included in the Windows Assessment and Deployment Kit (ADK) for Windows 10 1607 (August 2016) - adksetup.exe 1.65MB (click) if you are using windows 10 1607 or Download and install the one for Windows 10 1511 (pre-anniversary update) - adksetup.exe 1.58MB (click) if you are using windows 10 1511 (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:
  
  Code:
  
  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:
  
  Code:
  
  xperf -on DiagEasy
  
  Wait some time (Niemiro said: "Wait until the computer has gone through a period of stuttering slowness") and then:
  
  Code:
  
  xperf -d "%userprofile%\Desktop\trace.etl"
  
  If you get an error, try
  
  Code:
  
  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)

zerotheher007 · Sep 10, 2016

Excuse me for taking so long. Busy week and this is a bit more involved than I had time for. Anywho!

A: Gigabyte Technology
B: Desktop
C: ?
D: Windows 10 Pro
E: 64 bit
F: ?
G: Windows 7 pro
H: Full retail
I: 2 years old ish
J: Windows 10 has been on for a year ish
K: No
L: AMD FX-8350 4GHz
M: It's all corsair gen 3 don't remember specifics.
N: Radeon R-9 290X saphire
O: Gigabyte GA-990FXA-UD3
P: Corsair 750W Gold
Q: Avast!
R: No
S: No
T: NO

I'll run the scans and post them shortly. Thanks again

zerotheher007 · Sep 10, 2016

Here's the Speccy and call me dumb but where would window account folder name be?

http://speccy.piriform.com/results/8HKXqgxjIBYuOZvNoGCByzD

zerotheher007 · Sep 10, 2016

https://1drv.ms/u/s!AqGtiXwwlI_9gweY4EkSoRaDqHUP

Here's a different trace I ran, Hope this is okay. couldn't get the code you provided to work.

xilolee · Sep 10, 2016

zerotheher007 said:
where would window account folder name be?

Under c:\users, it seems your "windows account folder name" is ace.
I didn't write %username% because sometimes one could have a different username from the name of the windows account folder.
As an example, you have your profile in c:\users\ace but your username could be ventura.

zerotheher007 said:
couldn't get the code you provided to work.

What code?

xilolee · Sep 10, 2016

You can try to switch your memory sticks: corsair sticks on 2nd and 4th slots (count the slots from the cpu), Kingston stick between them (3rd slot).

There were bios updates for your MB.
You can download your MB manual (so you can read carefully how to update the bios) and the latest bios from your MB website (click).
There are F9 (stable) and F10e (beta) bios versions: I'll let you decide.
If you need more help, don't hesitate to ask!!!

Few tips: download the bios with an ethernet connection, update it through the bios itself (not from windows), make sure there is NOT a sudden loss of electricity...

zerotheher007 · Sep 10, 2016

Thanks!

This is the code I used.

xperf -on PROC_THREAD+LOADER+PROFILE+INTERRUPT+DPC+DRIVERS+POWER+IDLE_STATES -stackwalk Profile -BufferSize 1024 -MinBuffers 256 -MaxBuffers 256 -MaxFile 256 -FileMode Circular

xilolee · Sep 10, 2016

By the way you didn't indicate the main problem you're experiencing, and when it happens (in the meanwhile of what?).
Audio crackling?
Video stuttering?
Or what?

zerotheher007 · Sep 10, 2016

Audio and video dropouts, They tend to happen more when my machine has been on for a while when I do just about anything. Anywho, I updated the bios. it was actually version F3 which was for rev.4 of my mobo. I'm experiencing way less latency spikes so far although storport.sys still spikes every once in awhile but not as bad. Is there anything that can be done about that?

Also I can't really move my ram around because the cpu fan is in the way of the first port.

xilolee · Sep 10, 2016

The first slot near the cpu? In fact, you should use 2nd, 3rd and 4th.

zerotheher007 · Sep 10, 2016

Okay they are already in 2, 3, 4 just as you said earlier

xilolee · Sep 10, 2016

Yes, but I suggested you to try corsair sticks in 2nd and 4th slots, Kingston on 3rd.

zerotheher007 · Sep 10, 2016

That's how they are.

xilolee · Sep 10, 2016

Ok. :)

I'm not able to verify (using your trace and the speccy log) if you also updated:
Realtek HD Audio Driver - R4.31 - 441.85 MB - 2015/08/25
Realtek LAN Driver - 10.001.0505.2015 - 9.36 MB - 2015/07/09
Marvell 9128 AHCI/RAID driver - 1.2.0.1047 - 2.32 MB - 2015/11/06

They're on your MB website...

If things don't work well after you updated them, you can try to uninstall completely avast, to check if it's the culprit.
Set Windows defender and windows firewall.
If the problem disappears after you have uninstalled avast, you can re-install avast.
But if the problem re-appears after avast re-installation, maybe avast is not the right antivirus for your machine!
If the problem remains with or without avast, leave Windows defender and windows firewall, at least until we find the solution (if possible).

[SOLVED] DPC Latency issue (storport.sys)

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