Too much memory being used up?

[SLR2009]

Hi My 2.66 Ghz Quad Core Mac Pro with 6 gbs of memory has 3.94 gb of memory that is being used and about 650 mb's of free memory. I had Iphoto open as well as a few folders, Itunes, Safari, Mail and Calendar. is that normal for a Mac Pro with 6 gigs of memory? Would adding more memory be necessary. Thanks

 

[richard.mac]

nothing is wrong. this is good! your Mac Pro is using your huge amounts of memory as an advantage. OS X loves RAM and is god at managing it http://support.apple.com/kb/HT1342.

 

[TrapOx]

Hi My 2.66 Ghz Quad Core Mac Pro with 6 gbs of memory has 3.94 gb of memory that is being used and about 650 mb's of free memory.

Open Activity Monitor.app and you'll see something called "inactive memory". Its memory claimed by a program that isn't being used and its the same as free memory.

While your computer shows 4gb of ram "used", I bet that less than 1/2 of it is actually active.

 

[RemarkabLee]

nothing is wrong. this is good! your Mac Pro is using your huge amounts of memory as an advantage. OS X loves RAM and is god at managing it http://support.apple.com/kb/HT1342.

Thanks for this link, I wasn't clear on how OS X manages memory until I read it.