How much memory is being used at boot?

Discussion in 'OS X Mavericks (10.9)' started by Miltz, Nov 28, 2013.

  1. Miltz macrumors 6502a

    Sep 6, 2013
    New York
    I noticed when I boot into 10.9 after shutdown and I go into activity monitor 2GB of my 4GB is being used. Is this normal? nothing is open other than activity monitor. I have zero performance issues, I just wanted to know if that was normal. How much memory does your system use at boot?
  2. ufkdo macrumors 6502

    Oct 30, 2010
    Yes, it is normal. With Mavericks' new memory management system, the OS may use all the available ram even when nothing is open. This does not cause any problem, and actually improves the overall performance of the system.

    What you should look at Activity Monitor is the memory pressure. If it is at high levels, it can cause performance issues.
  3. Jambalaya macrumors 6502a

    Jun 21, 2013
    As I understand it Mavericks pre-loads commonly used programmes in anticipation of you using them. If you don't and it needs the ram for something else it over-writes it. All this is very quick and improves system performance.

    As the prior poster says look at memory pressure graph

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