I have the latest macbook pro 17 and it seems no matter what I do, particularly noticeable when I simply scroll up and down on a window, I hear the hard drive tapping away like it's being accessed or written to repeatedly. I used to also get frequent pauses with that ever annoying spinning color cursor until I upgraded to 8gbytes ram. Now the pausing happens a lot less frequently (though it still occurs), but I still get that hard drive craziness for everything I do.
I run intellij, chrome (maybe also firefox), sftp client, tomcat (with low memory limits) and not much else. Even 4gbytes should've been plenty.
Maybe what I'm hearing is not the hard drive? I'd be very surprised... What's going on? Is there a good tool for diagnosing this?
top tells me I have plenty of memory free.