Slow Computer Question I use a Mid-2011 iMac 21.5" (with 4 users on it).

I have noticed that the computer is runs quite slow when I am the only one logged in. The only applications I typically have open at once are Xcode, Safari and occasionally some other applications such as Reminders and notes.

When I checked Activity monitor to see how much RAM it was using, I noticed it said it had used 3.97-3.99 out of the 4 GB of ram that it has (See Screenshot).



here is the cpu graph:



I also ran EtreCheck as requested, however I was not expierencing the slowness as much when I ran it:

https://gist.github.com/Computer-Whiz123/e86e014e239b87b367df

I will upload one when I experience slowness...

I am considering buying extra RAM but I wanted to make sure that this was actually the cause of the problem before investing in $100 RAM chips.

Would upgrading the RAM from 4 GB to maybe 8 or 16 GB fix the issue? If not, what would fix the issue? Is there anything else that needs fixing?
Nothing wrong with your Memory, but if you wish to upgrade do so.

The slow computer has other reason, so we need to see your full activity monitor to help you.

Here is a sample of my memory (at about same levels as yours) without slow computer part.