This OS is a RAM guzzler

Discussion in 'OS X Yosemite (10.10)' started by poematik13, Oct 17, 2014.

  1. poematik13 macrumors 6502a

    Jun 5, 2014
    On Mavericks I was going from 2-3gb max ram being used on idle, now with Yosemite its eating up anywhere from 6-7gb on ide. Just for reference I have 16GB in a mid 2012 15" cMBP

  2. MacMan988 macrumors 6502a

    Jul 7, 2012
    I don't know exactly why. But it is pretty and thats all Apple wants it to be (in my opinion).

    But you can open Activity Monitory to check if there are any processes consuming higher amount of RAM.
  3. abn0rma1 macrumors newbie

    May 4, 2014
    Most modern OS's are built to use RAM, not let it idle.
  4. nobodyjustwalks macrumors regular

    Jan 23, 2013
    RAM usage seems fairly stable to me. No difference from Mavericks. Screenshot below. This is with a restart and no other apps open except Activity Monitor.

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  5. simon48 macrumors 65816


    Sep 1, 2010
    Memory pressure is the only thing that matters unless you're troubleshooting actual problems. If your memory pressure is in the green you're good to go, just ignore how much RAM is being "used".
  6. jev425 macrumors 6502


    Sep 12, 2014
    Seattle, WA
    Not sure if mines a ram issue but on my late 2012 mac mini after a restart it seems to do something with the hard drive every time and it slows down my mac quite a bit
  7. orbitalpunk macrumors 6502


    Aug 14, 2006
    That doesn't sound right. Possible memory leak? Im have safari, messages and mail open right now with little snitch, keyboard maestro and copy/past clip board manager running in the background and I'm at 4gigs of ram in use on a nMP. Doesn't make sense
  8. simon48 macrumors 65816


    Sep 1, 2010
    Like I said above, memory pressure is the only thing that matters. I have have 10GB "used" (of my 16GB) right now and I only have Safari and Mail open. If the OS doesn't need more RAM for something it'll keep old things active in RAM (they'll be included in "used"). On the off chance you open something that needs something it kept around in RAM it'll be faster to load. If it starts to get cramped (memory pressure starts to get high) the OS will drop some old things out of RAM to make room.

    Do not read into the "used" RAM!
  9. cyb3rdud3 macrumors 65816

    Jun 22, 2014

    It doesn't matter, I'd be more concerned if it wasn't using it. It is not an issue.
  10. poematik13 thread starter macrumors 6502a

    Jun 5, 2014
    I just have chrome and itunes running mainly. When i woke it up this morning it went down to like 4-5, so idk.

    now that i think of it, its probably because last night i was going through and opening all of my apps to make sure they all work with yosemite, and theres probably a ton of stuff stored in the ram now because of opening all them
  11. deviant macrumors 65816

    Oct 27, 2007
    look less at activity monitor and more at your content. especially since you have 16gb of ram. i have 4 in all my computers and it still works like a charm.
  12. DisplacedMic macrumors 65816

    May 1, 2009
    my MBA regularly says 7.99 out of 8 in use with almost no memory pressure and i don't notice any problems running programs.
  13. bbnck macrumors 6502a

    Mar 19, 2009
    It might be Spotlight indexing your hard drive, which can cause your computer to become slow until it completes (especially with spinning hard drives that are slower than SSDs). I have heard people experiencing this before when upgrading to new versions of Mac OS X. I am not sure about Yosemite in particular, but this is what you would see in earlier versions of Mac OS X if Spotlight is indexing itself:
  14. dannyg86 macrumors regular


    Apr 11, 2014
    I find this strange.

    In Mavericks, i was generally using about 4>6gb with 5>6 apps open out of my 12gb of available memory.

    In Yosemite, it starts at 6gb and keeps climbing up to 11.98gb with only the mac app store downloading.

    I have also had the "out of memory" pop up, and had interface builder on xcode bum out my system the other day, apparently it was using 60gb of ram (on a simple storyboard).

    Seen other ridiculous memory consumption figures too for other apps. I'm not being a hater, i love Yosemite, but unless this is the norm now i think I'll go back to Mavericks for the the time being, as i'm a dev and make a living on this iMac.

    Had the same problem on my Macbook Air, both fresh installed. What's the deal? People are saying this is how OS X handles memory since Mavericks, but i never, ever saw such consumption on Mavericks...

    Thanks for any comments
  15. petsounds macrumors 65816

    Jun 30, 2007
    Is this on a fresh boot, or is this after playing around with new apps? Mavericks and Yosemite both hold onto recently-used apps in memory for a while, so that might be what you're seeing (I see that also).
  16. dannyg86 macrumors regular


    Apr 11, 2014
    Thanks for the reply.

    This is on a fresh boot, with only opening the activity monitor app alone. I've had it installed for about 6 hours and rebooted 4 times since.

    Have about 6 apps installed, and very little hdd space used, so afaik indexing and such is all done now.


    Edit: oops, you were replying to someone else. Sorry!
  17. poematik13 thread starter macrumors 6502a

    Jun 5, 2014
  18. dannyg86 macrumors regular


    Apr 11, 2014
    Really? I'm still sitting on 11.98gb/12gb usage. Did it just go down on it's own after x period of time? Or did you do some stuff prior to it happening?

    Going to try some additional stuff before I make a decision on downgrading. Hopefully others have some additional info.
  19. simon48 macrumors 65816


    Sep 1, 2010

    I don't want to keep repeating myself, but... Since Mavericks it doesn't matter how much RAM is being "used"!

    I would feel bad for you if you downgraded because of what a completely meaningless number said.
  20. 0007776 Suspended


    Jul 11, 2006
    I admittedly don't check how much ram is being used unless there is a problem, but Yosemite seems to be running faster on my computer than Mavericks did, so I wouldn't complain about much.
  21. poematik13 thread starter macrumors 6502a

    Jun 5, 2014
    PS this is off topic but, i HATE how this OS handles audio thru displayport connections. Im listening to itunes and then plug in my HP z24x to see something on it, and the music cuts out. Im like ??? and I check system pref and I guess Yosemite automatically routes audio to a monitor whenever you plug it in.

  22. mattjohnson78 macrumors member

    Aug 6, 2014
    Southern California
    I notice that I am using less RAM on Yosemite than what I was using on Mavericks. I have been using iStat Menu to keep track of my computers performance and have seen a great improvement overall since moving to Yosemite, and I have been on Yosemite for the past 2 months so I have had time to test it.
  23. theSeb macrumors 604


    Aug 10, 2010
    Poole, England
    "This OS is a RAM guzzler"

    No, it's not. I don't know why people don't understand, but in reality, the more RAM that is being used, the better and faster the system will run.

    simon48 is kind of right with his statement and, I am not trying to be patronising, but if you don't fully understand what you're looking at, then stop looking and let the operating system do what it needs to do with the memory.
  24. Foxcon84 macrumors newbie

    Sep 28, 2014
    New Brunswick, Canada
    Idle RAM is considered wasted RAM. OS X is incredibly intelligent when it comes to RAM distribution. The less often the OS needs to page to secondary memory the better (less wasted time and less CPU I/O calls). Everything is great!
  25. GrumpyTrucker macrumors 6502a

    Jun 1, 2014
    And if the OS is STILL paging out to secondary memory? I've consistently got 7.9+ of 8GB 'used' in Activity Monitor, GB's of Virtual Memory and up to 100's MB of swap used at any one time even with very little open. iStat Menus keeps reporting 2GB used despite the above. I'm getting occasional, but annoying, beach balls when clicking menu items and am wondering how people with 4GB are going on.

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