Q: Mac Mini Late 2012 - RAM almost full
Hello
I bought my Mac Mini last year with OS X Mavericks pre-installed...
So this year (actually 2014) with Yosemite released, I updated my Mac mini and since then the RAM is continuously occupied by 3.70 Gb from 4Gb.
I don't understand this, because i haven't opened anything but the activity app.
I hope you have a solution for my problem
Thomas
iPad Air, iOS 8.1.2, Air 2
Posted on Jan 10, 2015 7:21 AM
It's normal since Mavericks for almost all memory to be in use, either by applications or by the file cache. That's what you should want, since unused memory is going to waste. The relevant measure of whether memory is in short supply is what Apple calls "memory pressure."
Apple's explanation of memory pressure is here. If you want a more detailed, technical description, see here, and for the source code, see here.
Posted on Jan 10, 2015 5:14 PM