ctrlX Core RAM usage description

[ThibaultM]

Hello,

Inside my ctrlX core, I can visualize usage of the RAM memory : 

I understand "Used" one and "Free" one but what is the "Buffer/cache"? I searched inside the user manuel but it is not clear on my side: 

Why is it used (Buffer/Cache)? 

[CodeWasi]

Hello!
Buffer and Cache are listed addionally.
Buffer areas are part of RAM used for transfer data with other devices/application needed - guess e.g. Ecat and IO data can be found inthere).
Cache Memory is faster than the standard, frequently needed data is going to be placed inhere to save time.
"Used" presents standard RAM.
Total = UsedStandard + special_Buffer&cache + free

Does this answer your question?
Bye 

[ThibaultM]

Hello,

Thanks for your fast answser.

Does it mean the RAM Buffer/Cache area is the dedicated part to run our Real Time apps like : PLC, Motion, Ethercat...?  

[CodeWasi]

Well,
its just for monitoring purposes, since it is live data. The usage of the different memory is "adjusted" by the kernel memory-manager during runtime.
Thats not configurable or fixed by complilation.
Bye