Losing Available Memory

[tomwin]

Hi, my Directadmin been up now a few months but I noticed that my Available Memory gone down all the time since start. Today my Available Memory is only 675 mb. I remember direct from the start I had about 975mb. And it gone down since then. Please see the picture.
Only have one domain and never added anything. Or installed anything. Same settings from start.
Im on CentOs 8. My VPS had 2gb from start.
Should I be worried? Or is it something I should do?
Please let me know.

 

[tomwin]

Maybe I post in wrong forum.

 

[sysdev]

Well, processes tend to use memory in time. e.g. mysql will use more mem after running a few days than right after the start. This is because it's caches are filling up depending on the use of the database. More apache processes use mem, maybe scripts running use buffers, bad sql queries using lots of ram or just plain file cache used bij the os. Don't worry too much about it unless it starts swapping. Remember, unused resources are wasted resources.