Hi there, i am suffering the exact same problem!
For me its the process called "dasHost.exe"
In Windows task manager its called "Device Association Framework Provider Host"
There is no pattern involved, it happens at random times..... but when it happens symthoms are ; spike network usage from "dashost.exe" and in this exact moment my gpu usage drops from 70-80% to 5%.... accompanied with an fps drop ingame from 80 fps to 10 fps for a split second. It doesnt matter how big the mission is, it can also happen freeflight with only my plane on the map.
This happens only exclusively with DCS World, no other sim or game is suffering from this.
After disabling it prior to running DCS, the stutters are gone.
I found multiple posts of people suffering the same issue like here
https://forums.eagle.ru/showthread.php?t=208120&highlight=dashost
https://forums.eagle.ru/showthread.php?t=211082&page=4
https://forums.eagle.ru/showthread.php?t=201436&page=3
https://forums.eagle.ru/showthread.php?p=3392773
I am very certain there are many more suffering from a simillar issue that they arent aware off, because they dont know how to troubleshoot properly.
It would be nice if anyone from ED could take a look into this? Maybe it has something to do with the recent major Windows 10 update? (dashost.exe beeing a windows process) :noexpression:
Hope we can rule some things out in comparing drivers and running software?
My hardware .:
i7 3770k @ 5 ghz (watercooled)
ASUS Maximus V Extreme Z77
16gb RAM @2400 mhz
EVGA 980 ti Classified @1500 mhz (watercooled)
Soundblaster Z
Wired Internet over intel 82579v Gigabit LAN
DCS World installed @ Samsung 850 PRO SSD
Windows 10 "1803" (Build 17134.81) <- CLEAN Install 1 Week old
GPU Driver : 397.93
Running Software while DCS is active :
AIDA64 (for Hardware Monitoring)
MSI Afterburner (GPU Clocks)
Bitdefender 2018
Corsair CUE (Keyboard&Mouse Software)
Target Software (Hotas Warthog keybinds)
PS.: To be clear my performance is rock solid otherwise usually @60+ fps all maxed on 3440x1440 res , so this stutters are indeed odd......