Help Latency Hard Pagefault Issues!

[Dissolution]

I have literally tried everything and I can't seem to figure out how to lower the latency/hard pagefaults on my computer.... I have no idea what is causing it, and I have tried disabling every single device one by one to see if I could isolate the issue with no success. If anyone has any sort of insight on this problem or what it might be it would be greatly appreciated. Thank you in advance.

 

[Dissolution]

I have literally tried everything and I can't seem to figure out how to lower the latency/hard pagefaults on my computer.... I have no idea what is causing it, and I have tried disabling every single device one by one to see if I could isolate the issue with no success. If anyone has any sort of insight on this problem or what it might be it would be greatly appreciated. Thank you in advance.

View attachment 9528

Anyone?

 

[TomasD]

Dear,

To properly troubleshoot issues with high/frequent DPCs/IRPs, we require a XPERF trace. Please follow these steps to generate one:

1. Download Windows Software Development Kit (SDK) for Windows and run the setup.
2. Select Windows Performance Toolkit feature (all the others can be unchecked) and proceed with the download/installation.
3. Once the installation finishes, open an elevated Command Prompt by right-clicking on CMD.EXE shortcut in your start menu and selecting Run As Administrator from the context menu.
4. Type the following command, which will start tracing, in the Command Prompt window you just opened:
   

   XPERF -on PROC_THREAD+LOADER+FLT_IO_INIT+FLT_IO+FLT_FASTIO+FLT_IO_FAILURE+FILENAME+FILE_IO+FILE_IO_INIT+DISK_IO+HARD_FAULTS+DPC+INTERRUPT+CSWITCH+PROFILE+DRIVERS+DISPATCHER -stackwalk MiniFilterPreOpInit+MiniFilterPostOpInit+CSWITCH+PROFILE+ThreadCreate+ReadyThread+DiskReadInit+DiskWriteInit+DiskFlushInit+FileCreate+FileCleanup+FileClose+FileRead+FileWrite -BufferSize 1024 -MinBuffers 256 -MaxBuffers 256 -MaxFile 256 -FileMode Circular

   If you see a yellow warning "xperf: warning: This system is not fully configured for x64 stack tracing" after running the above command, please complete these extra steps (otherwise, proceed to the step #5):
   
   Read More:

   1. Run the following command which will stop the tracing:
      

      xperf -stop

   2. Run the following command to enable stack tracing (by disabling Paging Executive):
      

      REG ADD "HKLM\System\CurrentControlSet\Control\Session Manager\Memory Management" -v DisablePagingExecutive -d 0x1 -t REG_DWORD -f

   3. Reboot the computer
   4. Once computer reboots, proceed from the step #3
   If you see a red error "xperf: error: NT Kernel Logger: A device attached to the system is not functioning. (0x1f)" after running the above command, please complete these extra steps (otherwise, proceed to the step #5):
   
   Read More:

   
   

   1. Run the following command to disable Driver Verifier, which causes the above error:
      

      verifier /reset

   2. Reboot the computer
   3. Once computer reboots, proceed from the step #3
   
   If you see a red error "xperf: error: NT Kernel Logger: Cannot create a file when that file already exists. (0xb7)", please do the following (otherwise, proceed to the step #5):
   
   Read More:

   
   Make sure you do not have any programs that capture ETW data already running. Some examples of these are:
   
   

   • Process Explorer
   • Process Hacker
   • Resource Monitor
   • Process Monitor
   • Latency Monitor
   • Another instance of XPERF or WPR
5. Perform some activities with your computer for few minutes, making sure the issues you reported are reproduced.
6. Run the following command, which will stop the tracing, in the command prompt window you already have opened:
   

   xperf -stop -d C:\CPU.etl

7. Compress file C:\CPU.etl
8. Upload the compressed file to a file sharing service (e.g. OneDrive or DropBox).
9. Share the download link here.

Thank you.