iMac Memory Usage?

Discussion in 'iMac' started by DeiseSupes, Jan 8, 2015.

  1. DeiseSupes macrumors newbie

    Dec 29, 2014
    Long term lurker, first time poster.

    Does this look right to you all? I have very little memory left and I have no idea why!

    Apologies for any obvious dumbness that may be present in this post!

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  2. Weaselboy Moderator


    Staff Member

    Jan 23, 2005
    Totally normal and nothing to worry about. OS X will use whatever memory is available to cache data and apps. As long as that memory pressure section at the bottom there is green, you are in good shape.

    Give this a read.
  3. DeiseSupes thread starter macrumors newbie

    Dec 29, 2014
    Thanks for the reply. Was just a bit worried as I seemed to have nothing in reserve and was contemplating trying to upgrade it!
  4. joe-h2o macrumors 6502a

    Jun 24, 2012
    Free memory is wasted memory.

    I always get a good laugh from the people who spend hundreds of dollars on 32 GB RAM upgrades only to then install those ****** "memory cleaner" apps that keep purging it so that the "free" number is huge.

    Nothing like making your RAM useless!

    Your graph is normal - OS X uses RAM as much as it can to speed up the system, so you want your amount of free RAM to be very small. You may have a lot of inactive RAM, which is data that is in memory but not being used currently but it has been used recently and might be again. If the system needs it, then it's already in RAM. If you purge this then the "free" number will be bigger, but then if you need the data again the system will have to read it from disk back into memory.

    There's no penalty for having inactive memory. If the system needs more RAM it will dump some of that inactive memory as it needs to, but otherwise you're better off leaving it as it is.

    The memory pressure graph at the bottom is what you should look at. If it's in the green then the system is having no problem with RAM at all. If it is yellow or red then the system may show performance issues due to a shortage of RAM - this happens if you have a couple of very heavy RAM-using apps open that are demanding large amounts of active memory. If this is a common theme then it's time to look at upgrading. If you're always in the green, you have plenty of RAM.
  5. Meister Suspended


    Oct 10, 2013
    Like others have told you, your memory pessure is rock bottom.
    You have plenty of RAM available.

    Feel free however to donate your $$$ to the IT sector and try to purchase a 32gb upgrade and a spare set of ram sticks in case you ram goes bad and you need to change it immediately.

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