Memory usage fluctuating when idle

[barneagle]

I've recently noticed that, according to Task Manager (Windows 10), the Memory usage of IDImagerSU.exe fluctuates by substantial amounts while the program is idle.

To illustrate the point, I recently exited and restarted the program, did nothing with it and left it completely idle. Within an hour the Memory usage increased from 375MB to about 420MB, but then in the few minutes that I've taken to start to write this it has fallen back to about 130MB. And while I wrote that sentence it has fallen again to 93MB. In between sudden jumps I see Memory increasing by 0.1MB every few seconds (typically CPU usage increases from 0% to 0.1% momentarily each time the Memory increases).

Should I be concerned about these fluctuations?

[G8DHE]

If files change they are reported from the OS to PSU and PSU will check for alterations see viewtopic.php?p=128166#p128166 It could be these actions that your seeing, causing PSU to scan the files to see if it needs to do anything or not.

[Hert]

Psu caches data for performance reasons. Thumbs are an example of such. Some caches are permanent, some caches are size limited, and some caches are time limited.
Screen widgets are memory managed by a garbage collector and freed after a time delay.

And then there’s the OS that moves memory around between physical and virtual memory.

How you describe it, you noticed the thumb caches at work.

Cpu usage while idle can be the job service and, as Geoff outlines, disk monitoring.

Psu is very complex software and to keep things performant a lot is going on. Luckily there are background processes to support complexity, but on its turn also brings more complexity itself

[barneagle]

Thanks for the answers. It seems that I do not need to be concerned.