mo

when i want to increase photoshop ram.. where do i change it.. i always get confused.. in the minimum size or preferd size?
i'm using os X and have 768 memory cards... what is the best size for a best performance? when i work on a poster size 50/70 it hardly moves...
thanks in advance

John1

I don't have a Mac, but what is important for both Mac and Windows is the effiency percentage.

If your status bar isn't visible, go to window/status bar.

Then click on the little black arrow in the status bar and select 'effiency'. It should be 100% for most images you're working with.

mo

and what if it isnt 100%? then what sould i do?

John1

Increase the percentage used by Photoshop (edit/preferences/memory & image cache), decrease cache, decrease number of history states (edit/preferences/general) or add more ram. It also might help to do a 'edit/purge/all' once in a while to make more free memory available.

Welles

Mo,

In OS X you don't allocate memory as you did in OS 9.x and earlier. In OS X memory is allocated dynamically by the system as needed. Your only memory related decision is in Photoshop's preferences. I'm assuming you are running PS 7 or CS natively in OS X here. Don't bother with Get Info. In Photoshop Preferences you will find under Memory and Image Cache the option to allocate a maximum memory usage percentage. You want to set that to 70%. You could go as high as 75% but much more and you may create possibilities of system instabilities according to the Adobe engineers.

Although he's a Window's user, John1 answered you exactly right.