Ok, from what it looks like, most of your memory is used up in cache. Are you doing anything disk intensive?
Please provide output of "lsmod > lsmod.txt" -- Kernal 2.6.15-26 Server Memory Leaks and Disk I/O errors https://launchpad.net/bugs/55692 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
