Question about Freeing up Memory

Discussion in 'macOS' started by snverhallen, Sep 10, 2009.

  1. snverhallen macrumors 6502a

    Oct 17, 2007
    I just used iFreeMem to optimize my memory and to my amazement it increased my free RAM from 200 MB to over 600MB.

    My question is how can it do that, and why doesn't OS X do it automatically?

  2. BobZune macrumors 6502a

    Oct 26, 2007
    Memory management is an important and big topic. If you want to learn more, see


    for starters, then do more research.

    The memory optimization is best left to the Operating System -- the designers are pretty smart and make various tradeoffs (e.g., reboot, start a program, measure time it takes to start; quit the program and restart the program and measure how long it takes -- this tells you keeping a recently used program in memory can be useful). If use iFreeMem makes you happy, keep using it as long as it doesn't lead to system instability.

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