Just found the RAM plus setting on my phone and dont get how it works, what does it do and what do I set it to
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RAM is expensive. Mass storage (hard drive/flash) is relatively cheaper. You typically have at least an order of magnitude more mass storage than RAM.
Virtual memory is where you usemass storage as RAM. This gives your computer device virtually as much RAM as you need. The downside is that mass storage is MUCH slower to access than RAM.
When you run out of RAM, the CPU may move a portion of RAM not currently being used to this virtual RAM space–freeing up some real RAM. If the CPU needs access to something it put in virtual RAM it will move something not immediately needed into virtual RAM and replace it with the needed data from from the virtual RAM. As long as virtual RAM access is only occasional, this will be relatively transparent to the user. If heavy access of virtual RAM is required, then your computing device will noticeably show as your CPU swaps data in and out of virtual RAM.
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