Could someone explain RAM please?

Discussion in 'OS X Yosemite (10.10)' started by spacejockey85, Mar 18, 2015.

  1. spacejockey85 macrumors newbie

    Joined:
    Dec 26, 2014
    #1
    Hi I know a bit about computers, not a lot though. I recently installed 8GB RAM, two 4GB slots on a 2010 MacBook Pro model. I have nothing intensive that I use running, no malwarem spyware or viruses, just Firefox and music and I've over 400GB left on a SSD. I don't understand why I haven't much RAM left there seems a lot being used for just using the computer and things run a bit sluggish.

    Here is a screenshot of a memory checking app showing what is being used.

    I mean what is using nearly 5GB of RAM? Screen Shot 2015-03-19 at 00.09.53.png
     
  2. MagicBoy macrumors 68040

    MagicBoy

    Joined:
    May 28, 2006
    Location:
    Manchester, UK
    #2
    Ask yourself this : What's the point in having RAM that's not being used?

    Don't worry about it unless the Memory Pressure graph in Activity monitor turns to a colour other than green. OS X sorts out the memory management for you. OS X doesn't work in the same way as Windows.

    As for sluggish - OS X 10.9 and 10.10 work best on an SSD. If your system is sluggish, upgrade to an SSD. It'll transform the responsiveness of the system.
     
  3. spacejockey85 thread starter macrumors newbie

    Joined:
    Dec 26, 2014
    #3
    Thanks that makes sense. The inactive RAM, I obv have more than 500MB to use so why does it show as only having that much inactive?
     
  4. crjackson2134 macrumors 68020

    crjackson2134

    Joined:
    Mar 6, 2013
    Location:
    Charlotte, NC
    #5
    It's most likly file cache, and App cache. It makes the OS more responsive. The more memory you have the more it will use. Unused memory is a waste. If you launch an app that needs memory, the OS will dump as much cache as needed so that your app has plenty.
     
  5. spacejockey85 thread starter macrumors newbie

    Joined:
    Dec 26, 2014

Share This Page