I have noticed since starting to play again last night, if you are on a Crossplay server on PC for an extended period of time, after a while your disk usage shoots through the roof.
The RAM stays at about 2.6 to 3 gigs, but my disk usage was over 26.5 m/s and my game crashed since all of a sudden my textures couldn't load. Prior to this happening I started to have stuttering lag, this has happened as well in DayZ before when textures in cities loaded incorrectly or not at all.
My game after this crashed, as I was adjusting settings to attempt to lower the demand on my computer to see if that would help.