No Free RAM?

Discussion in 'MacBook Pro' started by stevier95, Mar 27, 2011.

  1. stevier95 macrumors newbie

    Mar 27, 2011
    Hi everyone,
    I've followed this forum for a while without becoming a member. I've finally joined and i have a question for all of you mac gurus out there. Take a look at the screenshot i've attached. I have a few programs opened, nothing major, just preview, outlook, messenger and a few safaris. Yet my RAM has nothing free. Any reasons why?

    Attached Files:

  2. Hellhammer Moderator


    Staff Member

    Dec 10, 2008
    Inactive RAM is free RAM. Take a look at Activity Monitor to check what is using your RAM. I find that I need to relaunch Safari every now and then to reset its RAM usage.
  3. adnoh macrumors 6502a


    Nov 14, 2010
    whats the point of having ram and not using it? you dont want to be like that guy who has 16gb ram but only uses 4gb of it.

    you can always upgrade if you think your system is slowing down.
  4. stevier95 thread starter macrumors newbie

    Mar 27, 2011
    Just curious as to why its suddenly gone up without increasing the amount of stuff I'm doing. Not at all saying i don't want to use all of it, just wanting to learn :)
  5. Modernape, Mar 27, 2011
    Last edited: Mar 27, 2011

    Modernape macrumors regular

    Jun 21, 2010
    Just do a restart if you've not done one for a while, that will free up your RAM again. Not that there's any 'problem' with having no free RAM, but it does mean your system will page to the hard drive more often, which will slow things down.
  6. smithrh macrumors 68020


    Feb 28, 2009
    OK, here we go again.

    After upgrading to SL when it came out, I immediately noticed that the typical amount of free RAM was decreased markedly. In addition, pageouts (swapping) went up, sometimes remarkably, even with gobs of inactive RAM supposedly available for use.

    My working assumption has been that Apple has changed some algorithms in SL such that data/apps stay in inactive RAM for much longer than before, and there may be some "corner case" scenarios whereby the system will actually page out to disk with inactive RAM available - in fact, I've seen this behavior first-hand on my systems.

    The advantage for Apple to hang onto old data for long amounts of time is that you'll get re-launches of apps in very quick times - so I can understand why this has been done. But I also surmise that the changes that they've made aren't 100% correct, and in some people's configurations/usage patterns/apps, it makes mistakes and hangs onto data that it should just flush.

    I fixed the issue by upgrading to 8Gb on both my server and MacBook and the issue has gone away since then. My server was almost at a 1:1 ratio page ins to page outs, it was bad...

    You can also run "Repair Permissions" in Disk Utility on your startup drive to reclaim the free RAM. May be quicker than a reboot.
  7. smithrh macrumors 68020


    Feb 28, 2009
    I can report that the issue with poor memory management in Mac OS X has been addressed (at least for my usage patterns) in Mountain Lion.

    Jeez, almost 3 years of swapping with plenty of RAM available, hopefully that era is done now.
  8. clyde2801 macrumors 601


    Mar 6, 2008
    In the land of no hills and red dirt.
    HEY! It's my eighty bucks, I'll do what I want with it!!!!

    As God as my witness, I will never have to close another tab again!

    And yes, Safari does feel snappier. Really.

  9. yusukeaoki macrumors 68030


    Mar 22, 2011
    Tokyo, Japan
    4GB to 8GB/16GB is a true jump.

    Many apps including Safari feels snappier.
  10. deerfaced macrumors regular

    Jun 29, 2012
    Since adding 16 gig of ram to my macbook pro, I can actually go faster on my bicycle. Everything is snappier.

    Can't explain it... just snappier.
  11. throAU macrumors 603


    Feb 13, 2012
    Perth, Western Australia
    disk cache

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