My particular Ubuntu 10.04 LTS installation is not suffering from the Xorg memory leak. So what's my increased use of swap all about? I don't know if it's beneficial or not to have so much swapping going on, but a couple of readers have told me that Ubuntu's "swappiness" is set to a level of 60, which is optimal for servers. Desktops run better with lower "swappiness," and 10 is the suggested level. All of this "swappiness" information is available in the Ubuntu community's Swap FAQ.