Nameščen imam iStat Menus 3, ki pri celotni velikosti RAM-a (4GB) prikaže štiri področja:
- wired: 425 MB
- active: 429 MB
- inactive: 181MB
- free: 2,99 GB

A mi lahko nekdo prosim razloži, kaj pomeni wired RAM in kdaj je RAM inactive?

A je težko malo pogooglat?

V google sem napisal "wired active inactive free ram"...

Našlo je to stran (prvi zadetek): http://www.macyourself.com/2010/02/17/what-is-free-wired-active-and-inactive-system-memory-ram/

Citiram:

A vocabulary overview When a Mac’s system memory is being used, OS X doesn’t just lump it all together. It’s very neatly organized, as you will soon find out. One thing to mention beforehand, though, is that information stored in RAM sometimes gets temporarily moved to and from the hard drive when there isn’t enough RAM available. Of course, this slows a Mac down considerably, so it generally only occurs as a last resort when the system runs out of RAM. Now that we have that out of the way, let’s continue! Free memory As one might expect, this is the RAM that is sitting there with nothing to do. It is completely free for the system to use when needed. Wired memory Critical information stored in RAM by the system, its kernel, and some key application components. This stuff is basically frozen – it allocates its space and never moves to the hard drive or gets replaced with user-level data when RAM becomes scarce. An interesting thing to note about wired memory is that it scales based on how much total system memory is installed. For example, a Mac with 1GB of RAM may show 400MB of wired memory, while a Mac with 4GB of RAM may use 700MB. The more memory you have, the more your Mac wants to use it! Active memory Information currently in use or very recently used. If you’ve got Safari, GarageBand, iTunes, and Photoshop all going at the same time, your active memory is likely fairly high. Quit one or two of these applications and active memory will shrink. But not all of it will go straight back to free memory… some goes to the next category. Inactive memory One of the great things about Mac OS X’s memory management system is that it never stops working for you. Inactive memory is basically a handy storage space for convenient access to your most used tools. Let’s say you were working in iPhoto and decide to quit it. Some of the information that was stored in active memory by this application will be moved to inactive memory. This way, when you open iPhoto next time it will load up faster than before. Why? Because the computer is not reading everything from its slow hard drive again. I just ran a quick test myself to illustrate this point: After a system restart, I opened iPhoto and it took 3 Dock icon bounces to launch. I quit iPhoto, did some other stuff, and came back to it a few minutes later. This time it launched in 1 bounce.