Periodic system stutter apparently at kernel or bus level

[SkyLeach]

System stutter every 8-10 seconds especially when under mild-heavy load of any kind.

Special notes that make this relevant:

1. I have used System Monitor with tons of options in order to dig deeper and deeper to identify what is going on.  Example(s) at end of this list.
2. NOT CPU
3. NOT Memory (64GB, neither swapping nor volume use)
4. NOT GPU (happens under any kind of load, even self-created medium CPU threaded/process load)
5. NOT I/O (Verified with disabled devices)
   1. incl disk (checked)
   2. incl loopback (checked)
   3. incl network (checekd)
   4. incl swap

The closest I've come to a root cause are here:

[I will have to recreate this, I apparently didn't save the snips - posting to save edit progress.  Will edit/update in 4-8h after meetings with re-created system monitor graphs showing subsystem periodicity spikes]

In attached files:

• largely_intel_issues_exported.xml: an XML export of windows event logs showing regular (10-12m interval) issues with IO and Block devices (Bluetooth, WLAN).
• intel_ssu_scaninfo.txt: Intel System Scan Utilty hardware deviceid dump txt.
• snaps of system monitor: coming soon.

[David_G_Intel]

Hello SkyLeach

Thank you for posting on the Intel️® communities. From the SSU this seems to be related to the graphics driver, the report shows two versions installed (.9466 and .1340). Both of them are older versions of the Intel generic drivers, in a laptop like yours with Intel / NVIDIA graphics we recommend using the customized drivers that the system manufacturer provides. 

Please try a Clean Installation of Intel® Graphics Drivers in Windows* with the latest customized driver version 26.20.100.7642:

• https://www.msi.com/Laptop/GL75-Leopard-10SDK/support?sub_product=GL75-Leopard-10SDK#driver

Let us know if you have any questions or if the issue persists. 

Regards, 

David G 

Intel Customer Support Technician 

[SkyLeach]

I am installing the manufacturer drivers linked and will update after testing.

[SkyLeach]

After installing the old drivers, I then continued experiencing issues.  As promised, I re-ran system monitor during the issues.  The spikes seemed to happen during each "peak cluster" event in this graph.  Not individual spikes of I/O but when multiple bluetooth-related drivers all seemed to want to do whatever they wake up and do all at the same time.  (EDIT: I noticed the screenshot shows the top of the charted information which included the browser.  The lines when clicked, however, are bluetooth services.  I will try to recap again.)

 

In addition, I also did another system scan after downgrading the intel audio/video drivers.  See attachment.

[David_G_Intel]

Thank you for the information SkyLeach. You can also test the latest driver available (30.0.101.1631) using the same method and let us know the outcome to continue the investigation.

• https://www.intel.com/content/www/us/en/download/19344/intel-graphics-windows-dch-drivers.html

Regards, 

David G 

Intel Customer Support Technician 

[David_G_Intel]

Let us know once you try the previous step.

Regards,  

David G.  

Intel Customer Support Technician  

[David_G_Intel]

We have not heard back from you, so we will close this thread. If you need any additional information, please submit a new question as this thread will no longer be monitored. 

Best regards,  

David G. 

Intel Customer Support Technician