Mac OS X usage question...

in Mac Software edited January 2014
How do you check what resources are available in OS X? Such as RAM usage...

I found how to check Hard Drive free space, just not the resource area for RAM usage. <img src="graemlins/hmmm.gif" border="0" alt="[Hmmm]" />


  • Reply 1 of 6
    ghost_user_nameghost_user_name Posts: 22,667member
    The short answer:

    You don't.

    The long answer:

    RAM is handled very differently in Mac OS X than in previous versions of Mac OS. It is a *completely* different memory management system, in fact. Real memory, shared memory, and virtual memory are allocated, swapped around, and dumped dynamically by the system without any help from the user. That's why you don't have a memory section in the "show info" Finder window any more. You can watch these stats by using the terminal command "top" (which also shows CPU usage).

    If you really want to learn more about the process, I suggest you read the <a href=""; target="_blank">Memory Usage</a> section of John Siracusa's <a href=""; target="_blank">Mac OS X 10.1 Review</a>.

    [ 05-31-2002: Message edited by: starfleetX ]</p>
  • Reply 2 of 6
    buonrottobuonrotto Posts: 6,368member
    You can use the process viewer to see some of this stuff, but RAM usage fluctuates quite a bit since it's dynamically allocated.
  • Reply 3 of 6
    cyko95cyko95 Posts: 391member
    Thanks for the detailed info guys. I really appreciate it.
  • Reply 4 of 6
    roborobo Posts: 469member
    I think you'd like this app, called AquaMon

    It's a beautiful freeware Cocoa app that displays more system stats than you'd ever want transparently on your desktop.

    <a href=""; target="_blank"></a>;

    Plus it's written by a really cool guy at Ars, who will add features and fix bugs overnight if you ask him on the boards!

  • Reply 5 of 6
    stimulistimuli Posts: 564member
    df is a handy utility for seeing free disk space. Top should tell you about ram usage at the, um, top of the term window.

    However, as SFX pointed out, this information is misleading and borders on useless.

  • Reply 6 of 6
    ghost_user_nameghost_user_name Posts: 22,667member
    [quote]Originally posted by stimuli:

    <strong>However, as SFX pointed out, this information is misleading and borders on useless.</strong><hr></blockquote>Whoa! Those statistics are *far* from useless if you understand how they work. Shoot, you could say the information provided in "About This Mac" in Classic Mac OS was even more useless for someone that doesn't understand <a href=""; target="_blank">memory fragmentation</a>.

    That's why I gave the link to Siracusa's Ars article: to learn what these numbers mean.

    "...because knowing is half the battle!"
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